INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Pumps
232123
Qty. 4
Taco Series FI Base Mounted End Suction Centrifugal Pump. This pump ships
complete with Cast Iron Body, Bronze Impeller, Steel Shaft, Bronze Casing Wear Ring, EPT
Carbon-Ceramic Seal, External Seal Flush Line Tapings, Structural Steel Base, Open Drip Proof,
and Premium Efficiency Motors. Please note that our standard EPT seals are acceptable for use
on Systems to 240°F.
TAG
GPM
TDH
HP
RPM
VOLTAGE
MODEL
CHP-1
CHP-2
HWP-1
HWP-2
360
360
98
98
100
100
44
44
20
20
3
3
1760
1760
1760
1760
480/3/60
480/3/60
480/3/60
480/3/60
3011
3011
1507
1507
Qty. 2 Taco Series 1600 Inline Centrifugal Pump. This pump ships complete with Cast Iron
Body, Bronze Impeller, Steel Shaft, EPT Carbon-Ceramic Seal, and Open Drip Proof Motors.
TAG
GPM
TDH
HP
RPM
VOLTAGE
MODEL
HRP-1
HRP-2
24
24
48
48
1.5
1.5
1760
1760
480/3/60
480/3/60
1619
1619
Qty. 2 Taco IL Series Cartridge Circulators Constructed of Cast Iron, Cast Iron Impeller. The
Shaft is constructed of an alloy steel material.
TAG
GPM
TDH
HP
RPM
VOLTAGE
MODEL
FPP-1
FPP-2
24
10
11
8
0.12
0.12
1760
1760
480/3/60
480/3/60
111
111
FI/FE Base Mounted
Pumps
302-012
Installation and Operation Instructions
SUPERSEDES: 302-012 dated 1994
Plant ID No. 001-937
A: INSTALLATION
SAFETY REQUIREMENTS
1.
IMPORTANT! These instructions should be read completely
2.
prior to installation of the equipment. A copy of these
instructions should be retained on file for future reference.
This pump is intended for the circulation of water or other
suitable HVAC media. It is not intended for hazardous, corrosive, or flammable liquids.
EFFECTIVE: April 15, 2001
allow head room for the use of hoists or overhead cranes. Locate
pump on a dry and clean place so that motor will be protected
from moisture and dust.
On closed heating systems, place expansion tank at the suction side of the pump. When pump head is less than
20 feet, it is permissible to connect expansion tank to discharge
side of the pump.
On open systems, install pump close to liquid supply and
make suction piping as short and as straight as possible.
3. Pump must not be operated without guards in place.
A2: FOUNDATION
4.
Pump must not be operated until all plumbing and/or electrical connections are in place.
5. Proper care and suitable equipment should be used to move
and install this heavy equipment.
6. Care should be taken when installing pipe systems to avoid
placing an excessive load on the pump unions.
7. Refer to motor installation instructions to determine proper
terminal connections in order to obtain correct pump rotation.
8. When the system piping is used as an earth bonding path for
the building electrical services (check local codes), the pump
should not be relied upon as part of the circuit. A properly
installed bridging connection should be provided.
9. If electrical connection is to be made using any means other
than rigid conduit, proper strain relief must be provided (min
100N tension).
10. Pump should be installed according to local electrical and
safety codes using appropriate size wire and suitable over
current protection. It should use a lockable isolator or circuit
breaker conforming to EN60947-3.
11. It is recommended that the pump be fitted with a suitable
“emergency stop” per the requirements of EN418.
12. It is recommended that sound (noise) level reading be taken
following installation per requirement of EN809.
The foundation serves to carry the pump weight and to absorb
vibration. Normally, the foundation is made of a concrete pad,
preferably tied in with the floor or ground. Make the foundation
pad about 6" longer and 6" wider than the base of the frame.
Height of the pad should be at least 6". When foundation is
poured, provide a hole near each of the four (4) corners to match
the holes in the pump base. To simplify installation and maintenance use lead Anchors.
RECEIVING PUMP
When pump is set on its foundation, make sure to have it properly levelled. Place baseplate over foundation bolts. Place shims
at corners of baseplate when required and level with a spirit
gauge. Check also level of suction and discharge flanges.
1.
2.
3.
4.
Check pump for shortage and damage immediately after
arrival. Prompt reporting to the carrier’s agent, with notations
made on the freight bill, will expedite satisfactory adjustment
by the carrier.
Unload and handle the unit by lifting around the motor frame.
Do not lift by pump casing or flanges.
Pumps are shipped from the factory ready to mount on a
solid base. They are painted with one finish coat. Required
accessories are packaged in a separate container and
shipped with the pump.
If the pump is not to be installed and operated soon after
arrival, store it in a clean dry place having slow moderate
change in ambient temperature. Rotate the shaft weekly to
coat the bearings with lubricant and to retard oxidation and
corrosion. Follow motor storage recommendations.
A1: LOCATION
Locate pump in an easily accessible place with sufficient
space around it for maintenance and servicing. On larger pumps
FOUNDATION
BOLT
PIPE
SLEEVE
CONCRETE
WASHER
Fig. 1 – Anchor Bolts
A3: PUMP SETTING
A4: COUPLING ALIGNMENT
WARNING: UNEXPECTED STARTUP HAZARD
Disconnect and lockout power before servicing.
Failure to follow these instructions could result in
serious personal injury or death, or property damage.
Proper alignment of pump and driver will assure trouble-free
operation and long life of the pump. Misalignment will cause
rapid wear of seals, couplings and bearings. All pumps are carefully aligned before leaving the factory. However, experience indicates that alignment invariably changes in shipping and handling.
Therefore, it is of utmost importance that alignment be checked
at various steps of the installation process; i.e. after leveling, after
piping and after first few weeks of operation.
Check alignment by placing a slotted straight edge across the
coupling halves at top, bottom and at the sides. If any light is
seen between the straight edge and one of the coupling flanges,
it means the unit is out of alignment (Fig. 2).
If light is seen at top and bottom position of the straight edge,
alignment is out of height. Usually shims are placed under the
motor feet. Loosen the four motor bolts, remove or add shims as
required to correct proper height. Tighten the motor bolts and
check to make sure alignment was corrected properly.
ALIGNMENT
GAUGE
On open pumping systems drawing water from a level below
the pump (suction lift), install a foot valve with strainer.
On open systems where the pump is located below the suction water level (suction head), install a check valve in the discharge line close to the pump.
PRESSURE GAUGE
PIPE
STANCHION
PRESSURE
GAUGE
GATE VALVE
MULTI PURPOSE
VALVE
PIPE
STANCHION
Fig. 3 – Typical Installation - Horizontal Piping
INCORRECT
PARALLEL
MISALIGNMENT
CORRECT
PROPER
ALIGNMENT
INCORRECT
ANGULAR
MISALIGNMENT
SPRING HANGER
(IF REQUIRED)
Fig. 2 – Coupling Alignment
If alignment is out on the sides of the coupling, loosen the four
motor bolts and lightly tap the motor in the direction required.
Tighten the four motor bolts and check to make sure alignment
was corrected properly.
An alignment in one direction may alter the alignment in another.
Be sure to check all alignments made.
NOTE: WHERE THERMAL EXPANSION OF
PIPING IS ANTICIPATED, INSTALL SPRING
PIPE HANGERS & FLEXIBLE CONNECTORS
WHICH ARE SUITABLE TO COMPENSATE
FOR THIS EXPANSION.
GATE
VALVE
INSTALL PER INSTRUCTIONS OF MANUFACTURER.
MULTI PURPOSE VALVE
FLEXIBLE
CONNECTOR
(IF REQ’D)
PRESSURE GAUGE
SUCTION
DIFFUSER
ROTATING COMPONENT HAZARD
Do not operate pump without all guards in place.
Failure to follow these instructions could result in
serious personal injury or death, or property damage.
PIPE
STANCHION
Fig. 4 – Typical Installation - Vertical Piping
A7: CONNECTING PIPING
A5: GROUTING
When alignment is correct, the foundation bolts should be
tightened evenly but not too firmly. The base plate can then be
completely filled with grout, encasing the levelling shims or
wedges. Foundation bolts should not be fully tightened until the
grout is fully hardened, approximately 48 hours after pouring.
Recheck alignment as outlined above.
A6: PIPING
Correct piping is of prime importance for the proper operation
and long life of the pump. Stresses induced by piping will cause
excessive wear of seals, bearings and couplings that could ultimately destroy these elements.
Both suction and discharge piping should be suspended close
to the pump connections so that no pipe wieght rests on the
pump. Pipe flanges and pump flanges should align perfectly
before connections are made. Piping should never be drawn by
force into place.
Thermal expansion of piping requires special attention on
heating installations. If no room is provided for pipe expansion,
stresses are induced in the piping that will exert a load on the
pump. Forces created by pipe stresses can exceed by far the
load exerted through pipe and water weight. Stress forces can
distort pump, bend shafts, wear out seals and impeller wear rings
and ultimately burn out bearings. To protect pump from thermal
pipe stresses, provide spring hangers and flexible connectors
that are suitable to compensate for pipe expansion. (Fig. 4)
Install gate valves on both suction and discharge side of the
pump to allow servicing without draining the system.
Piping may now be connected to pump. Make sure that pump
and pipe flanges are strictly parallel and properly spaced for the
gasket that will be used. Also check that pipes are supported properly and do not rest on pump flanges. Never draw pipes by force
to pump flanges. Recheck alignment after piping connections are
made. If misalignment was caused by piping, it is a sign that pipe
stresses distorted the pump. Correct piping to relieve stresses.
B: PUMP START-UP & OPERATION
Before starting up pump for the first time, several items are to
be checked to avoid damaging pump.
B1: LUBRICATION
• FRAME MOUNTED PUMPS (Grease Lubricated Design)
NOTE: FI pump standard construction has permanently
lubricated sealed bearings. For FI pumps with optional
regreasable bearings and all FE pumps, follow instructions below.
Bearings are initially lubricated during manufacture. The regreasing interval depends upon the running speed of the unit:
PUMP RUNNING SPEED
REGREASING INTERVAL
1750 rpm
4250 hours
3450 rpm
2000 hours
To recharge the bearings with fresh grease, shut down pump
(completely) and remove grease drain plug. Clean Alemite fitting
and apply grease gun using enough strokes to equal 1.5 tablespoons. Restart pump and run for another fifteen minutes. Shut
down pump (completely) and reinsert drain plug. Restart pump.
CAUTION: Overgreasing bearings can cause premature bearing failures. Do not mix dissimilar greases. Do
not lubricate while pump is running. Do not remove or
install drain plug while pump is running.
B3: PUMP START-UP
After you have checked lubrication and wiring, you are ready
to start the pump.
Make sure the isolation valve is open on the suction side and
close the valve on the discharge side. Start motor. Wait until unit
has come to full speed and then open discharge valve slowly. Do
not run pump for more than a few minutes with completely shut
discharge valve. If system conditions call for part-time operation
against shut valves, install a bypass line from discharge to suction.
• OPERATION - BEFORE STARTING
RECOMMENDED GREASES
MAKE
GRADE
Exxon
Unirex N2
Valvoline
Valplex EP
Mobil
Mobilith AW2
Esso
Temperex N2
The pump is ready for starting when:
• CLOSE COUPLED PUMPS
The pump element is fixed directly to the motor shaft.
Therefore, the motor bearings must be lubricated in accordance
with the manufacturer’s recommendations.
FILLING
(IF REQ’D)
FILLING
(IF REQ’D)
GREASE FITTINGS
(BALL BEARING GREASING)
Fig. 5 – Lubrication Points
B2: MOTOR WIRING & ROTATION
Check wiring of motor before starting to make sure that connections are wired properly for the voltage in use. Overvoltage
can burn out motor windings. Check heater element in magnetic
starter to see that it is properly sized to adequately handle the full
load amp draw of the motor.
Before attempting to check out rotation of pump, open isolation valves and fill pump with water to provide lubrication of the
seal. Never operate the pump dry!!!
Next throw the switch and see if direction of rotation corresponds with arrows on frame of pump. The direction of rotation is
counterclockwise facing the suction end of pump. Direction of
rotation of three phase motors can be easily reversed by interchanging two of the three wires at the terminal board of the motor.
Reversing of single phase motors is done by interchanging some
internal wires or clamps. Instructions for reversing are found either
on the motor nameplate or inside the motor terminal cover.
a) The unit base plate is grouted and bolted to the foundation.
b) Motor is correctly wired to starter switch, ensuring correct
rotation.
c) Pump and driver are correctly aligned.
d) Bearing lubrication is provided.
e) Mechanical seal has been fitted.
f) All rotating parts are found to be free when turned by hand.
g) Pump is primed. Never run the unit dry. The liquid in
the pump serves as a lubricant for close running fits within the pump and the pump may be damaged if operated
dry. The pump may be primed by using an ejector,
exhauster or vacuum pump. If a foot valve is used in the
suction line, the pump may be primed by venting and filling the casing and suction line with liquid.
B4: MECHANICAL SEAL
Mechanical seals are the most delicate component of the
pump. Special care has to be given to them to assure trouble-free
operation.
The sealing element of a mechanical seal consists of a carbon
washer rotating against a stationary metallic or ceramic ring.
Surfaces of both are highly lapped to assure sealing.
Any dirt that penetrates between the two mating parts will
cause a rapid wear of the seal faces and will ultimately result in
seal leakage.
New heating systems are usually contaminated by various
materials such as construction debris, welding slugs, pipe joint
compound, mill scale, etc. It is of utmost importance that such
systems be cleaned out thoroughly before putting pump into
continuous operation.
Cleaning of a heating system is simple and easy. First flush out
system with cold water at city pressure to remove all loose foreign matter that penetrated into the system. Afterwards, boil out
system with chemicals to remove dirt adhering to pipes.
Chemicals most commonly used for this procedure are sodium
triphosphate, sodium carbonate, or caustic soda but any nonfoaming detergents as used in dishwashers can be applied.
Fill system with clean water, add cleaning chemicals (1 lb. for
every 40 to 50 gallons of water or manufacturer’s instruction).
Start pump and heat up system. Let system run for a few hours
and then drain and refill with fresh water. Your pumps are now
ready for continuous duty.
CAUTION: The addition of certain chemical additives
to systems utilizing TACO equipment voids the warranty.
Problem Analysis
A. NO DISCHARGE
C. INSUFFICIENT PRESSURE
1. Pump not primed
2. Speed too low (when direct connected to electric motor, determine whether or not motor is
across the line and receives full
voltage)
3. System head too high
4. Suction lift higher than that for
which pump is designed
5. Impeller completely plugged
6. Wrong direction of rotation
7. Air leak in the suction line
8. Air leak through stuffing box
B. INSUFFICIENT DISCHARGE
1. Air leaks in suction line or stuffing
box
2. Speed too low (when direct connected to electric motor, determine whether or not motor is
across the line and receives full
voltage)
3. System head higher than anticipated
4. Insufficient NPSH (net positive
suction head). Suction lift too
high. Check with gauges. Check
also for clogged suction line or
screen.
5. Not enough suction head for hot
or volatile liquids
6. Foot valve too small
7. Impeller partially plugged
8. Mechanical defects:
Wearing rings worn
Impeller damaged
Foot valve or suction opening
not submerged enough
Wrong direction of rotation
Limited
Warranty
Commercial Pump Warranty Terms
(Models FI, CI, FE, CE, KV, KS, TA)
Taco, Inc. will repair or replace without charge
(at the Company’s option) any commercial pump
product or part which is proven defective under
normal use within one year from date of start-up
or one year and six months from date of shipment
(whichever occurs first).
In order to obtain service under warranty, it is
the responsibility of the purchaser to promptly
notify the Company in writing and promptly deliver the item in question, delivery prepaid to the
1. Speed too low (when direct connected to electric motor, determine whether or not motor is
across the line and receives full
voltage)
2. System head less than anticipated
3. Air or gas in liquid
4. Mechanical defects:
Wearing rings worn
Impeller damaged
Impeller diameter too small
Wrong direction of rotation
D. LOSS OF SUCTION FOLLOWING
PERIOD OF SATISFACTORY
OPERATION
1. Leaky suction line
2. Waterseal plugged
3. Suction lift too high or insufficient
NPSH
4. Air or gas in liquid
5. Casing gasket defective
6. Clogging of strainer
E. EXCESSIVE POWER
CONSUMPTION
1. Speed too high
2. System head lower than rating,
pumps too much liquid
3. Specific gravity or viscosity of
liquid is too high
4. Mechanical defects:
Shaft bent
Rotating element binds
Stuffing boxes too tight
Wearing rings worn
factory. For complete details on warranty returns,
the purchaser should contact a local Taco stocking distributor or the Company. If the product or
part in question contains no defect as covered in
this warranty, the purchaser will be billed for parts
and labor charges in effect at time of factory
examination or repair.
Motors provided on commercial pumps are not
covered by this warranty, and are warranted by the
motor manufacturer. For complete details on
motor warranty returns, the purchaser should contact the motor manufacturer’s local service repair
center or contact the motor manufacturer directly.
Seals provided on commercial pumps are not
covered by this warranty.
Any Taco product or part not installed or operated in conformity with Taco instructions or which
F. VIBRATION
1. Air leak in suction line
2. Air or gas in liquid
3. Impeller partially plugged
4. Mechanical defects:
Damaged impeller
Misalignment of pump and
driver
Bearing worn
Rotor out of balance
Shaft bent
5. Foundation not rigid
G. MOTOR RUNS HOT
1. Speed too high
2. Specific gravity or viscosity of
liquid pumped is too high
3. Mechanical defects:
Shaft bent
Rotating element binds
Defects in motor
Voltage and/or frequency
lower than rating
Misalignment of pump and
driver
H. PUMP BEARINGS OVERHEAT
1. Contaminated lubricant
2. Mechanical defects:
Shaft bent
Rotor out of balance
Misalignment of pump and
driver
has been subjected to misuse, misapplication, the
presence of certain chemicals (such as solvents,
acids, etc.) or other abuse will not be covered by
this warranty. For complete information on chemical and application restrictions, the purchaser
should contact the company.
Taco, Inc. reserves the right to make changes in
details of design, construction, or arrangement of
materials of its products without notification.
Taco, Incorporated offers this warranty in lieu of
all other express or implied warranties. No warranties are made for merchantability or fitness for
use and there are no warranties which extend
beyond the description contained herein. Taco,
Inc. will not be liable for any special, incidental, or
consequential damages.
Do it Once. Do it Right.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2001
TACO, Inc.
Instruction Sheet
302-001
21⁄2", 3" & 1600 Series Pumps
SUPERSEDES: July 1, 2009
EFFECTIVE: October 1, 2010
Plant ID# 001-972
APPLICATION:
All pumps covered by this instruction sheet are designed for pumping water.
Working Pressure: 175 PSIG with cold water and
125 PSIG at rated temperature
Temperature:
250°F Standard
300°F with Hi-Temp Seal
INSTALLATION:
Install horizontally with the motor cradle under the motor as shown in the picture
to the right.
CAUTION: DO NOT SUPPORT, SUSPEND OR BRACE MOTOR AND/OR BRACKET. SUPPORT
PROVIDED BY CASING IS SUFFICIENT FOR STRUCTURAL INTEGRITY OF THE PUMP.
The casing can be rotated relative to the bracket for installation in vertical or horizontal pipe.
The pump must be installed far enough away from ceiling and walls to permit servicing of bracket and motor.
CAUTION: UNDER NO CIRCUMSTANCES SHOULD ANY PART OF BRACKET OR MOTOR BE COVERED
WITH INSULATION. OBSERVE ALL APPLICABLE ELECTRICAL AND MECHANICAL CODES.
START UP:
Before operating the pump for the first time, check the following:
1. Is motor correctly wired for voltage in use? Warranty is void if motor is damaged due to improper electrical hook-up.
2. If a magnetic starter is used, see that the heater element is sized for the Service Factor load of the motor otherwise
nuisance tripouts may occur.
3. IMPORTANT: Couplers must be properly aligned and coupler inserts must be fully engaged in the hubs (no teeth showing). Check alignment and spacing before and after initial start-up. Check the set screws on each coupler hub to ensure
that they are tightened securely.
4. Before starting motor, ascertain that pump is filled with water to lubricate the seal. Do not operate pump dry for motor
checkout.
LUBRICATION:
Pump is equipped with permanently lubricated ball bearings. Lubricate motor per instruction label attached to motor.
SEAL REPLACEMENT:
Seals used in these pumps are Type 21 design (see Photo A). Some models manufactured between 2004 and 2008 used the Type 2100 design (photo B). These designs are
interchangeable.
To replace the water seal, the following steps must be observed:
1. Disconnect electrical connections. Relieve system pressure and drain water from body.
2. Remove motor assembly from bracket and bracket from pump body.
3. Place bracket in vertical position, impeller up and loosen screw at center of impeller
two turns (7⁄16 Hex Head). This screw has a left-hand thread. Tap impeller at its outside diameter with handle of hammer to free tapered fit between shaft and impeller
and completely remove screw, washer and impeller (see Figure 2 on reverse side of
A
B
this Instruction Sheet).
4. Remove the complete rotating element, which includes the retainer, rubber bellows, carbon and spring (it may be necessary to pry these components loose using a screwdriver). Remove the stationary seat from the recess in the end of
the bracket (again it may be necessary to pry it loose with a screwdriver, see Figure 3 on reverse side).
IMPORTANT NOTE: THE OLD SEAL SEAT MAY BE DIFFICULT TO SEE BUT NEEDS TO BE REMOVED BEFORE
INSTALLING NEW ONE (SEE CUT-AWAY VIEW IN FIGURE 3A).
5. Thoroughly clean shaft sleeve and seat cavity.
Figure 1
Figure 2
Figure 3
Figure 3A
Figure 4
Figure 5
6. Insert new seal seat. For easy assembly, coat OD of seal rubber (either a cup or an O-ring) with
special grease provided in small container. Do not use any other oil or grease. Push seat all the
way down into cavity. Seat must not be cocked relative to shaft. Be sure face of seal stays
absolutely clean – wipe surface with soft, clean cloth if necessary. (See Figure 4.)
7. Install new carbon assembly. Coat inside of rubber bellows with special grease provided (do not
use any other oil or grease) and slide assembly (carbon first) over shaft until carbon meets seat.
Push on rubber insert on very end of assembly and not on outside diameter of carbon retainer. Be
Figure 6
sure carbon face stays absolutely clean. (See Figure 5.)
8. Replace impeller using new impeller screw and washer provided. Make sure cones of both impeller and shaft are clean.
9. Reassemble bracket into pump casing. Use new gasket provided. Clean gasket surface of both casing and bracket if
necessary. Be sure that the longer of the two outside bracket ribs is on top. (See Figure 1.)
10. Reinstall coupler and motor.
11. Follow procedure outlined under “START UP” section where required.
IMPELLER REPLACEMENT:
Follow steps 1 through 3 and 8 through 11 outlined under “SEAL REPLACEMENT” section.
BEARING (CARTRIDGE) REPLACEMENT:
If for some reason the bracket bearings should fail, it is not necessary to replace the entire bracket. A cartridge containing
permanently lubricated ball bearings and shaft is available. To change the cartridge, follow this procedure:
• Follow steps 1 through 4 as outlined under “SEAL REPLACEMENT” section.
• Flip bracket around so that motor end is on top.
• Remove the two outermost socket head screws. (See Figure 6.)
• Pull out old cartridge. If necessary, tap cone end of shaft with a hammer to accomplish this.
• Insert new cartridge and refasten with socket head screws. Make sure shaft sleeve is in place with cone on sleeve
resting against cone of shaft.
• Follow steps 5 through 11 outlined under “SEAL REPLACEMENT” section.
NOTE: It is recommended that when changing the cartridge the water seal be replaced also. However, if you plan to
reuse the water seal, it is not necessary to remove the seal seat. The carbon assembly may be lubricated with water to
make reinstallation easy.
LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge (at
the company’s option) any commercial pump
product or part which is proven defective under
normal use within one (1) year from the date of
start-up or one (1) year and six (6) months from
date of shipment (whichever occurs first).
Taco, Inc. will repair or replace without charge (at
the company’s option) any 1600 series commercial
circulator bearing cartridge which is proven defective under normal use within three (3) years from the
date of start-up or three (3) years and six (6) months
from date of shipment (whichever occurs first).
Seals provided on commercial pumps are not
covered by this warranty.
In order to obtain service under this warranty, it is
the responsibility of the purchaser to promptly
notify the local Taco stocking distributor or Taco in
writing and promptly deliver the subject product or
part, delivery prepaid, to the stocking distributor.
For assistance on warranty returns, the purchaser
may either contact the local Taco stocking distributor or Taco. If the subject product or part contains no defect as covered in this warranty, the
DO
IT
ONCE. DO
IT
purchaser will be billed for parts and labor charges
in effect at time of factory examination and repair.
Any Taco product or part not installed or operated in conformity with Taco instructions or which
has been subject to misuse, misapplication, the
addition of petroleum-based fluids or certain
chemical additives to the systems, or other
abuse, will not be covered by this warranty.
If in doubt as to whether a particular substance is
suitable for use with a Taco product or part, or for
any application restrictions, consult the applicable Taco instruction sheets or contact Taco at
[401-942-8000].
Taco reserves the right to provide replacement
products and parts which are substantially similar
in design and functionally equivalent to the defective product or part. Taco reserves the right to
make changes in details of design, construction,
or arrangement of materials of its products without notification.
TACO OFFERS THIS WARRANTY IN LIEU OF
ALL OTHER EXPRESS WARRANTIES. ANY
WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIES OF MERCHANTABILITY OR FITNESS IS IN EFFECT ONLY FOR THE DURATION
OF THE EXPRESS WARRANTY SET FORTH IN
THE FIRST PARAGRAPH ABOVE.
THE ABOVE WARRANTIES ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR
STATUTORY, OR ANY OTHER WARRANTY
OBLIGATION ON THE PART OF TACO.
TACO WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE OF ITS PRODUCTS OR ANY INCIDENTAL
COSTS OF REMOVING OR REPLACING
DEFECTIVE PRODUCTS.
This warranty gives the purchaser specific rights,
and the purchaser may have other rights which
vary from state to state. Some states do not allow
limitations on how long an implied warranty lasts
or on the exclusion of incidental or consequential
damages, so these limitations or exclusions may
not apply to you.
RIGHT.®
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8. Telephone: 905/564-9422. FAX: 905/564-9436.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2010
TACO, Inc.
Instruction Sheet
Horizontal Circulators
102-052
Nos. 110 thru 120
SUPERSEDES: 102-052 February 1, 1986
EFFECTIVE: April 15, 2001
Plant I.D. 001-318
APPLICATION:
1.
2.
3.
4.
Maximum recommended working pressure is 125 psi (862 kPa).
Maximum water temperature must not exceed 240°F.
Cast iron circulators should be used for closed systems only.
Bronze circulators must be used in open or fresh water systems and potable water systems.
INSTALLATION:
1. Mounting position – Circulators must be mounted with the motor in a horizontal position.
2. Rotating casing – Casing has an arrow on the front which indicates direction of flow. To rotate casing, remove the
casing bolts, rotate casing and replace bolts. Make sure gasket is properly located before tightening bolts.
3. Electrical connections – Observe all applicable codes when connecting to power supply. The motors do not require
overload protection.
4. Fill system – It is good practice to flush a new system of foreign matter before starting the circulator.
TO REPLACE MOTORS:
1.
2.
3.
4.
5.
6.
Disconnect wiring.
Loosen the two set screws at pump end of spring coupling, remove bolts between bracket and motor and separate.
Loosen other set screw of coupling and remove coupling from old motor.
Slide coupler with single set screw over new motor shaft and tighten against flat surface of shaft.
Place new motor assembly into bracket and replace bolts.
Extend pump end of spring coupling over impeller shaft 3⁄16" and tighten both set screws. If impeller and shaft move
into body during this operation, water will flow from weep hole in bracket. If this does occur, extend spring coupler a
little more or until water stops flowing. CAUTION: UNDER NO CIRCUMSTANCES SHOULD THE WEEP HOLE BE
PLUGGED.
7. Rewire motor.
TO REPLACE SPRING COUPLING:
Follow same procedure outlined above.
LUBRICATING INSTRUCTIONS:
Re-oil pump and motor annually with SAE No. 30 oil.
CAUTION:
The addition of certain chemical additives to systems utilizing TACO equipment voids the warranty.
DO IT ONCE. DO IT RIGHT.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Telephone: (401) 942-8000
FAX: (401) 942-2360.
Telephone: 905/564-9422.
FAX: 905/564-9436.
Copyright 2001
TACO, Inc.
REPLACING SEALS:
Water flowing from weep hole in bracket normally indicates dirt on the seat or seal needs replacement. Before taking
pump apart, extend spring coupling and impeller shaft into body as far as it will go. This will separate the seal halves and
permit a greater flow through the weeping hole and wash any foreign matter off the seats. Release and if flow stops, it
indicates that the seals do not require replacement. If the flow does not stop, loosen the two set screws on the coupling
and extend as far as it will go. If leak stops, it means there was insufficient tension on the coupling. If leak continues,
indications are that the seal needs replacement. Proceed as follows:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
Disconnect wiring.
Valve off or drain system.
Remove body bolts and pull entire assembly out of body.
Loosen the two set screws at pump end of spring coupler, file off any burrs on shaft and pull impeller and shaft from
bracket.
Pry out old seal seat from bracket with a screwdriver and old part from impeller shaft with a pair of pliers.
Clean shaft and seal bearing surfaces thoroughly with clean cloth.
Dip CARBON part of seal in water to lubricate. Place on top of impeller shaft with carbon facing up. Push down on
shaft with palm of hand as far as it will go. Then with both thumbs push all the way down, making certain that prongs
engage the two holes in the impeller. If there are no holes in the impeller, break off the prongs with a pair of pliers and
smooth burrs with a file.
Separate rubber from ceramic part, wet it and set into recess in bracket. Set ceramic seal into rubber with seat facing out by starting at a slight angle first, then pushing away and down simultaneously. The rubber rings should not
be folded over during the operation. Make certain that both the rubber and ceramic are “bottomed” squarely.
Clean both seal surfaces with a clean lintless cloth.
Place a few drops of oil along the impeller shaft and push slowly with a twisting motion through ceramic part into
bracket and spring coupling.
While holding impeller and shaft with seal faces mating, insert an Allen wrench into one of the set screws in the coupling.
Extend spring 3⁄16".
Remove old body gasket, clean surfaces and replace with new gasket.
Place entire assembly into body, replace and tighten bolts gradually and evenly all around.
Refill system. If water leaks from weep hole in bracket, increase tension on spring coupling slightly or until leak stops.
Rewire motor.
WARRANTY TERMS
(ALL PRODUCTS EXCEPT 00 SERIES
CIRCULATORS, 570 SERIES ELECTRIC
ZONE VALVES, COMMERCIAL PUMPS,
COMMERCIAL CIRCULATORS. SEE SEPARATE STATEMENTS OF WARRANTY
TERMS FOR THESE PRODUCTS.)
Taco, Inc. will repair or replace without
charge (at the Company’s option) any product or part which is proven defective under
normal use within one year from the date of
start-up or one year and six months from
date of shipment (whichever occurs first).
In order to obtain service under this warranty, it is the responsibility of the purchaser
to promptly notify the company in writing
and promptly deliver the item in question,
delivery prepaid, to the factory. For complete
details on warranty returns, the purchaser
should contact a local Taco stocking distributor or the Company. If the product or part in
question contains no defect as covered in
this warranty, the purchaser will be billed for
parts and labor charges in effect at time of
factory examination and repair.
Any Taco product or part not installed or
operated in conformity with Taco instructions or which has been subject to misuse,
misapplication, the presence of certain
chemicals (such as solvents, acids, etc.)
or other abuse will not be covered by this
warranty. For complete information on
chemical and application restrictions, the
purchaser should contact the Company.
Taco, Inc. reserves the right to make
changes in details of design, construction,
or arrangement of materials of its products
without notification.
TACO, INCORPORATED OFFERS THIS
WARRANTY IN LIEU OF ALL OTHER
EXPRESS OR IMPLIED WARRANTIES. NO
WARRANTIES ARE MADE FOR MERCHANTABILITY OR FITNESS FOR USE
AND THERE ARE NO WARRANTIES
WHICH EXTEND BEYOND THE DESCRIPTION CONTAINED HEREIN. TACO, INC.
WILL NOT BE LIABLE FOR ANY SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Pump Accessories
232123
Qty. 4 Taco Cast Iron Suction Diffuser with integral strainer, permanent magnet in the flow
streams, straightening vanes, and additional start-up strainer.
TAG

SYSTEM
SIZE
CHP-1
6”
CHP-2
6”
HWP-1
4”
HWP-2
4”
Note: Concentric Reducer required
PUMP
SIZE
MODEL NO
4”
4”
2.5”
2.5”
SD060040
SD060040
SD030025 *
SD030025 *
Instruction Sheet
302-042
Suction Diffuser “Rear Strainer Pullout” (RSP)
SUPERSEDES: New
EFFECTIVE: June 1, 2007
Plant I.D. 001-3882
LOCATION & INSTALLATION:
1. Locate and install pump per pump manufacturer’s
instructions.
NOTE: When selecting pump location, ensure there is
sufficient space available to remove the Suction
Diffuser straightening vane assembly and strainer for
routine maintenance. Clearance requirements are
shown as dimension “C” in Table 1.
2. Mount suction diffuser directly to pump suction
flange. Pump and suction diffuser flanges should be
aligned before connections are made. Piping should
NEVER be drawn into place by force. Inlet connection
is labeled with the word “SYSTEM” on the flange and
outlet flange is labeled “PUMP”.
3. Both suction and discharge piping should be suspended or supported close to the pump so that no
pipe weight rests on pump. To support the Suction
Diffuser, cut a piece of 11⁄4" pipe without threads to the
approximate length required from one of the bosses
provided on the pump connection to the adjustable
foot nut. See Figure 1: Piping Diagram.
4. Place pipe on nut and under the boss and turn the nut
counter-clockwise until sufficient load is supplied to
give maximum support.
NOTE: Blow down is MOST effective when system
connection of the Suction Diffuser is in the 12 o’clock
position.
4. When insulating the Suction Diffuser, allowances need
to be made for removal of the straightening vane
assembly and cleaning of the strainer.
MOUNTING:
1. Suction Diffusers can be mounted in a vertical or horizontal position. Bosses are cast into the Suction Diffuser
body to accommodate pipe supports for each position.
2. If used in a horizontal position, the pump should be
positioned at right angles to the piping.
3. A blow down valve may be installed on the drain connection of the Suction Diffuser.
FIGURE 1: PIPING DIAGRAM
SUCTION
DIFFUSER
MULTIPURPOSE
VALVE
TABLE 1: STRAIGHTENING VANE AND STRAINER CLEARANCE DIMENSION
Model
Number
SD020015-4
System
Pump
2 Flanged 11⁄2 Flanged
SD020020-4
2 Flanged
2 Flanged
SD025020-4
21⁄2 Flanged
2 Flanged
SD030020-4
3 Flanged
2 Flanged
C
Model
Number
System
Pump
SD060060-4
6 Flanged
6 Flanged
SD080060-4
8 Flanged
6 Flanged
SD100060-4
10 Flanged
6 Flanged
SD080080-4
8 Flanged
8 Flanged
SD100080-4
10 Flanged
8 Flanged
8.97
(228)
SD120080-4
12 Flanged
8 Flanged
SD100100-4
10 Flanged
10 Flanged
SD120100-4
12 Flanged
10 Flanged
SD140100-4
14 Flanged
10 Flanged
SD120120-4
12 Flanged
12 Flanged
SD140120-4
14 Flanged
12 Flanged
SD160120-4
16 Flanged
12 Flanged
8.49
(216)
8.24
(209)
SD025025-4
21⁄2 Flanged 21⁄2 Flanged
SD030025-4
3 Flanged 21⁄2 Flanged
SD030030-4
3 Flanged
SD040030-4
4 Flanged
3 Flanged 10.47
3 Flanged (266)
SD040040-4
4 Flanged
4 Flanged
SD050040-4
5 Flanged
4 Flanged
SD060040-4
6 Flanged
4 Flanged
SD050050-4
5 Flanged
SD060050-4
6 Flanged
5 Flanged 15.36
5 Flanged (390)
12.86
(327)
NOTE: Dimensions are in inches. Metric dimensions are in millimeters and are in parentheses (
C
19.02
(483)
MULTIPURPOSE
VALVE
23.79
(604)
29.40
(747)
33.72
(856)
).
SUCTION
DIFFUSER
CLEANING:
1. It is recommended that valved gauge connections be
provided on diffuser inlet and pump suction connections to indicate when cleaning is needed.
2. Note pressure drop when strainer is clean. When the
pressure drop increases 100%, remove the strainer
and clean.
NOTE: Follow the same procedures in the START-UP
STRAINER REMOVAL section when performing routine maintenance and cleaning of the permanent
strainer.
1
Disposable Start-Up Strainer
5
Blow Down Port
2
Permanent Stainless Steel Strainer
6
Ductile Iron Diffuser Body
3
Flow Straightening Vane Assembly
7
Removable Service Cover
4
Metering Port
8
Reusable “O” Ring
4
1
2
3
8
S Y ST
EM
7
PUMP
START-UP STRAINER REMOVAL:
The fine mesh start up strainer should be removed
after initial system fluid circulation and proper system
cleaning.
1. Shut the pump off and close the service valves to isolate the Suction Diffuser and pump from the system.
Allow enough time for the system fluid to cool below
100° F (38° C).
2. Once isolated remove drain plug on bottom of Suction
Diffuser and allow system pressure to drop to zero (if
installed this may be accomplished by opening the
blow down valve).
3. Loosen the cover bolts on the rear of the Suction
Diffuser and carefully break it loose from the Suction
Diffuser body. Once all drainage has stopped completely remove the bolts and cover from the Suction
Diffuser body.
4. Using a pair of pliers remove the vane assembly and
strainers from the Suction Diffuser body.
5. Remove the fine mesh start up strainer (if still in place)
and discard appropriately.
6. Inspect all components for any damage and replace
any damaged components as necessary.
7. Inspect cover “O” ring and replace as necessary.
8. Reinstall vane assembly into Suction Diffuser body.
Making sure that the vane assembly is properly seated inside of Suction Diffuser body, reattach the cover
and secure in place by tightening the bolts in crisscross pattern.
9. Open isolation valves slowly while inspecting the “O”
ring sealing area for leaks.
10. Return system to normal operating conditions.
6
5
LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge
(at the company’s option) any product or part
which is proven defective under normal use
within one (1) year from the date of start-up or
one (1) year and six (6) months from date of
shipment (whichever occurs first).
In order to obtain service under this warranty, it
is the responsibility of the purchaser to promptly notify the local Taco stocking distributor or
Taco in writing and promptly deliver the subject
product or part, delivery prepaid, to the stocking
distributor. For assistance on warranty returns,
the purchaser may either contact the local Taco
stocking distributor or Taco. If the subject product or part contains no defect as covered in this
warranty, the purchaser will be billed for parts
and labor charges in effect at time of factory
examination and repair.
Any Taco product or part not installed or operated in conformity with Taco instructions or which
DO
IT
ONCE. DO
has been subject to misuse, misapplication, the
addition of petroleum-based fluids or certain
chemical additives to the systems, or other
abuse, will not be covered by this warranty.
If in doubt as to whether a particular substance
is suitable for use with a Taco product or part, or
for any application restrictions, consult the
applicable Taco instruction sheets or contact
Taco at [401-942-8000].
Taco reserves the right to provide replacement
products and parts which are substantially similar
in design and functionally equivalent to the defective product or part. Taco reserves the right to
make changes in details of design, construction,
or arrangement of materials of its products without notification.
TACO OFFERS THIS WARRANTY IN LIEU OF
ALL OTHER EXPRESS WARRANTIES. ANY
WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIES OF MERCHANTABILITY OR
FITNESS IS IN EFFECT ONLY FOR THE DURATION OF THE EXPRESS WARRANTY SET
FORTH IN THE FIRST PARAGRAPH ABOVE.
THE ABOVE WARRANTIES ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR
STATUTORY, OR ANY OTHER WARRANTY
OBLIGATION ON THE PART OF TACO.
TACO WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE OF ITS PRODUCTS OR ANY INCIDENTAL
COSTS OF REMOVING OR REPLACING
DEFECTIVE PRODUCTS.
This warranty gives the purchaser specific
rights, and the purchaser may have other rights
which vary from state to state. Some states do
not allow limitations on how long an implied warranty lasts or on the exclusion of incidental or
consequential damages, so these limitations or
exclusions may not apply to you.
®
IT
RIGHT.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2007
TACO, Inc.
INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Pump Accessories
232123
Qty. 8 Taco Straight Pattern Multi-Purpose Valves. Each valve ships complete with Cast Iron
Body, Bronze Seat, Replaceable Bronze Disk, and EPDM Seat Insert. Each valve is selected on
flow rate in accordance with Taco sizing criteria, unless line sized valves are specified.
TAG
CHP-1
CHP-2
HWP-1
HWP-2
HRP-1
HRP-2
FPP-1
FPP-2
PIPE
SIZE
6”
6”
4”
4”
2”
2”
1-1/4”
2”
FLOW
RATE
360 GPM
360 GPM
98 GPM
98 GPM
24 GPM
24 GPM
24 GPM
10 GPM
VALVE
SIZE
3”
3”
2”
2”
1.5”
1.5”
1.5”
1.5”
Instruction Sheet
302-040
Plus Two Multi-Purpose Valve (MPV)
SUPERSEDES: June 1, 2005
EFFECTIVE: April 1, 2010
Plant ID No. 001-3881
CAUTION: THIS VALVE IS A CHECK VALVE. DEPRESSURIZE BOTH SIDES OF VALVE BEFORE
SERVICING THIS PRODUCT OR ATTACHED PIPING.
WARNING: FAILURE TO COMPLY WITH THESE INSTRUCTIONS REGARDING THIS VALVE CAN
RESULT IN SERIOUS PERSONAL INJURY OR DEATH AND/OR SEVERE PROPERTY DAMAGE.
INTRODUCTION/APPLICATION
The Taco Plus Two Multi-Purpose Valve incorporates all of
the functions required on the discharge side of a pump in a
Hydronic System into one valve. It is a spring loaded non
slam check valve, a shut off valve, a flow control valve and
a flow metering valve.
Each valve has a calibrated nameplate for system balancing
(approximate). All valves are equipped with metering ports for
taking differential pressure readings that can be used with
corresponding flow charts for more accurate system balance.
PLUS TWO
MULTI PURPOSE
VALVE
SUCTION
DIFFUSER
OPERATING LIMITATIONS
BASE MOUNTED SINGLE SUCTION PUMP
PLUS TWO
MULTI PURPOSE
VALVE
SUCTION
DIFFUSER
INSTALLATION
1. It is critical that the Taco Plus Two Multi-Purpose Valve
is always installed with the shaft facing upwards as indicated in the diagrams.
2. The Taco Plus Two Multi-Purpose Valve should be mounted to a spool piece on the discharge side of the pump. It
is recommended that a spool piece of 12" be used on
pumps with a discharge size of 1.5" through 6" and a 24"
spool piece be used for discharge sizes 8" through 12".
3. In order to prevent any objectionable system noise,
mounting of the valve directly to the pump is not recommended.
4. Provide sufficient clearance around the valve to facilitate
removal or repair.
5. Valve should be installed in the direction of the flow
arrows on the valve body.
6. The valve body is not designed to support the weight of
the system piping. Pipe hangers must be used and
properly installed in accordance with accepted industry
standards/practice. Pipe supports should be provided
under the valve bodies.
VERTICAL IN – LINE PUMP
FIELD CONVERSION
(straight to angle pattern)
WARNING: Valve components can be very
heavy, employ proper lifting equipment when
working on valves. Failure to follow these
instructions can result in serious personal injury or
death and property damage.
1. Open valve a minimum of one complete turn.
2. Remove the body bolts.
1.5" through 2.5" size valves require a 3⁄8" allen key.
3" valve requires a 1⁄2" allen key.
4" valve requires a 5⁄8" allen key.
5" and 6" valves require 3⁄4" allen key.
8" through 12" valves are 3⁄4" hex cap bolts.
3. Rotate one half of valve body 180º while ensuring that
the body “O” ring and the “soft seat” remain in position
(inspect the body “O” ring and the “soft seat” for any
nicks or cuts and replace as necessary).
4. Reinstall the body bolts and torque to 50 ft lbs.
REPLACING STEM PACKING
WARNING: Hot system fluid leaking from
valves can cause burns. Avoid contact with
leaking system fluid when servicing any valve.
Failure to follow this instruction can result in serious
personal injury or death and property damage.
CAUTION: Safety glasses should be worn.
If a leak develops at the stem packing nut, turn nut clockwise until the leak stops.
If the leak persists you will need to replace the stem packing, this may be accomplished while valve is under full system pressure.
1. Record valve setting utilizing memory clip.
2. Remove retaining rings and calibration name plate.
3. Turn valve stem counter-clockwise until the valve is fully
open and will not turn any further.
4. Remove packing nut, located at base of stem by turning
counter clockwise.
5. Remove old packing and replace it with two new packing
rings with the ring joints positioned 180 degrees apart.
6. Replace packing nut and tighten as required.
7. Reinstall calibration name plate and retaining rings.
8. Reposition valve stem per recorded setting in step one.
WARNING:
Hot water leakage can occur
from readout valves during hookup of readout
kit. Follow the instructions in instruction manuals
supplied with readout kits for safe use. Keep eyes protected with safety glasses. Make sure that readout
valves are not leaking before removing safety cap.
Failure to follow this instruction can result in serious personal injury or death and property damage.
FLOW METER OPERATION
1. Remove caps from the valves at the HI and LO pressure
taps.
2. Connect the high pressure hose (red) of the differential
pressure gauge to the upstream of HI pressure connection on the MPV and the low pressure hose (green) to the
downstream of LO pressure connection.
Note: Hose ends to be connected require valve depressors. Check opposite end of hose if not visible inside
hose end. Valves are opened automatically as the hose
end is screwed on.
3. Prepare the differential pressure gauge as per instructions in the Gauge Kit.
4. The flow can be determined by reading the differential
pressure indicated at the gauge, noting the valve opening from the scale and pointer and transferring this data
to the Flow Chart (published separately).
5. When flow readings are complete, follow directions supplied with differential pressure gauge.
6. Replace metal caps on valves at the HI and LO pressure
taps.
NOTE: In order to achieve optimal accuracy when using
any differential pressure flow measuring device, it is recommended that a minimum of 10 diameters of straight pipe
(sized to the device) be installed upstream of the device and
a minimum of 5 diameters of straight pipe be installed
downstream of the device.
LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge
(at the company’s option) any product or part
which is proven defective under normal use
within one (1) year from the date of start-up or
one (1) year and six (6) months from date of
shipment (whichever occurs first).
In order to obtain service under this warranty, it
is the responsibility of the purchaser to promptly notify the local Taco stocking distributor or
Taco in writing and promptly deliver the subject
product or part, delivery prepaid, to the stocking
distributor. For assistance on warranty returns,
the purchaser may either contact the local Taco
stocking distributor or Taco. If the subject product or part contains no defect as covered in this
warranty, the purchaser will be billed for parts
and labor charges in effect at time of factory
examination and repair.
Any Taco product or part not installed or operated in conformity with Taco instructions or which
has been subject to misuse, misapplication, the
addition of petroleum-based fluids or certain
chemical additives to the systems, or other
abuse, will not be covered by this warranty.
If in doubt as to whether a particular substance
is suitable for use with a Taco product or part, or
for any application restrictions, consult the
applicable Taco instruction sheets or contact
Taco at [401-942-8000].
Taco reserves the right to provide replacement
products and parts which are substantially similar
in design and functionally equivalent to the defective product or part. Taco reserves the right to
make changes in details of design, construction,
or arrangement of materials of its products without notification.
TACO OFFERS THIS WARRANTY IN LIEU OF
ALL OTHER EXPRESS WARRANTIES. ANY
WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIES OF MERCHANTABILITY OR
FITNESS IS IN EFFECT ONLY FOR THE DURATION OF THE EXPRESS WARRANTY SET
FORTH IN THE FIRST PARAGRAPH ABOVE.
THE ABOVE WARRANTIES ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR
STATUTORY, OR ANY OTHER WARRANTY
OBLIGATION ON THE PART OF TACO.
TACO WILL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES RESULTING FROM THE
USE OF ITS PRODUCTS OR ANY INCIDENTAL
COSTS OF REMOVING OR REPLACING
DEFECTIVE PRODUCTS.
This warranty gives the purchaser specific
rights, and the purchaser may have other rights
which vary from state to state. Some states do
not allow limitations on how long an implied warranty lasts or on the exclusion of incidental or
consequential damages, so these limitations or
exclusions may not apply to you.
Do it Once. Do it Right.®
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8. Telephone: 905/564-9422. FAX: 905/564-9436.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2010
TACO, Inc.
INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Expansion Tanks and Air Separators
232113
Qty. 3 Taco Series CBX Partial Bladder expansion tank. Each tank is constructed in
accordance with section VIII of the ASME Boiler Pressure Vessel Code and stamped 125 PSI
working pressure. Tanks are constructed of Carbon Steel with Heavy Duty Butyl Bladder.
Additional trim includes: Make-up Water Pressure Reducing Valve, and Relief Valve.
TAG
MODEL
CAPACITY
GALLONS
EXPANSION
TANK SIZE
ET-1
ET-2
ET-3
CBX-15
CBX-84
CBX-15
4
22
4
15” X 14”
38-9/16” X 16”
15” X 14”
PRV
SIZE
¾”
¾”
¾”
AIR SEPARATORS
Qty. 3 Taco Air Separator constructed in accordance with section VIII of the ASME Boiler
Pressure Vessel Code and stamped 125 PSI working pressure.
TAG
MODEL
SIZE
LOCATION
AS-1
AS-2
AS-3
AC06
AC04
AC02
6”
4”
2”
Chilled Water
Heating Water
Heat Recovery
Instruction Sheet
CBX Expansion Tanks
SUPERSEDES: New
402-020
EFFECTIVE: July 9, 2001
Plant ID No. 001-1180
1. Note location on the tank of the system connection, charging valve and
the drain plug. Note labels on the tank or refer to Diagram 1 for location
of tank fittings.
2. Carefully remove the shipping plug in the system connection coupling
located at the bottom center of the tank. There should not be much, if
any, air pressure under this plug.
1
⁄2" NPT
(13MM)
CHARGING
VALVE
CLOSURE
11⁄2" NPT (38MM)
CAUTION: DO NOT REMOVE THE PIPE PLUG LOCATED ON THE
SIDE OF THE TANK. THIS PLUG SHOULD NEVER BE REMOVED
UNLESS NECESSARY AND THEN ONLY AFTER THE AIR PRESSURE
IN THE TANK HAS BEEN BLED OFF TO ZERO GAUGE PRESSURE.
BEFORE BLEEDING OFF ANY OF THE AIR CHARGE, ALWAYS ISOLATE THE TANK FROM THE SYSTEM WITH A SHUT-OFF VALVE.
3. Before making any connections to the tank, check the tank air charge. Use
an accurate automotive or similar type gauge on the air valve located at
tank top. The air charge pressure must be equal to the pre-charge
pressure specified for the system. Refer to the label on the tank for
the specified pre-charge pressure. In most cases the specified tank
pre-charge pressure is equal to the system fill pressure at the tank
location. Use Diagram 2 – Air Charge Check Chart to correct the value
read on the pressure gauge for the ambient temperature at the tank
location.
4. After making sure that the air charge is correct, the pipe connection to the
system may now be made. The piping requirements for captive air tanks
are different from those of plain steel expansion tanks. Note the Captive Air
Tank Piping Diagrams. Piping and air elimination devices should be
arranged so that air will not be trapped in the tank, above the tank or in the
nozzle. Pitch the piping connection up away from the tank and use automatic air vents where necessary. Note the piping diagram.
5. Locate the CBX tank connection as close as possible to the suction side
of the pump. This ensures that the pressures realized from the pump
head will be additive in the system. A combination shut-off and drain
valve should be located in the connection piping to provide for tank isolation during the initial hydrostatic test.
• NOT FOR USE WITH POTABLE WATER.
• VERTICAL INSTALLATION ONLY.
SYSTEM
CONNECTION
3
⁄4" NPT (16MM)
Diagram 1 – Location of Tank Fittings
How to Use the Chart
Diagram 2 – Air Charge Check Chart
Specified
Pre Charge
Pressure
P.S.I.
(at 68ºF)
LIFTING
RING
Ambient Temperature (ºF)
36
44
52
60
68
76
84
92
100
12
10.4
10.8
11.2
11.6
12.0
12.4
12.8
13.2
13.6
20
17.9
18.4
18.9
19.5
20.0
20.5
21.1
21.6
22.1
30
27.3
28.0
28.6
29.3
30.0
30.7
31.4
32.0
32.7
40
36.7
37.5
38.2
39.2
40.0
40.8
41.6
42.5
43.3
50
46.1
47.1
48.0
49.0
50.0
51.0
52.0
52.9
53.9
60
55.5
56.6
57.7
58.9
60.0
61.1
62.3
63.4
64.5
70
64.9
66.1
67.4
68.7
70.0
71.3
72.6
73.9
75.1
1. Determine ambient air temperature where the
tank is being checked.
2. Locate the specified pre-charge pressure in the
left-hand column.
3. Follow across horizontally to the number under
the ambient air temperature.
4. The number found under Step No. 3 is the temperature corrected air charge pressure in p.s.i.
and should agree with the gauge reading
observed at the tank.
5. If the temperature corrected air charge pressure differs by more than 1 p.s.i. from the precharge pressure specified for the system, then
correct it by bleeding pressure through the air
charge valve or by adding pressure with an air
compressor.
CBX Tank Piping Diagrams – Recommended Location
CBX Tank Piping Diagrams – Alternate Locations
Do it Once. Do it Right.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436.
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2001
TACO, Inc.
INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Boilers
235216
Qty. 2 Aerco KC1000 Boilers: The first high-efficiency, commercial, gas-fired, hydronic boiler
introduced in the US, AERCO's KC1000 natural gas and propane-fired boilers have been
performance proven for more than 18 years -- longer than any similar product in the market. The
condensing heat exchanger design is built to withstand thermal shock and eliminates the need for
boiler pumping equipment to lower the size, cost, and operating expense of components
throughout the entire heating loop. The forced draft, modulating burner operates with 20:1
turndown (natural gas) to deliver up to 95% thermal efficiency while simplifying the venting
system. Each 1 million BTU/hr. unit provides accurate temperature control to within +/-2°F and
occupies only a 78"H x 22"W x 57"D footprint. Easy-to-use, advanced control software integrates
with EMS systems and can be accessed remotely.
Qty. 1 Aerco Model Boiler Management System II for sequencing, management, and
communications with the above boilers.
Special warranty per specification:
WARRANTY
Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or
replace components of boilers that fail in materials or workmanship within specified
warranty period.
Warranty Period for Condensing Boilers:
Leakage and Materials: 10 years from date of Substantial Completion.
Heat Exchanger Damaged by Thermal Stress and Corrosion: Nonprorated for
five years from date of Substantial Completion.
The above Warranty is included in our price and covers material only. See the attached
Aerco letter for details of this warranty.
The manufacturer’s maintenance schedule and recommendations must be strictly
followed and documented. Any deviation from recommended maintenance schedules,
equipment application, equipment operation, or documentation will void this warranty.
Note: “a. Leakage and Materials: 10 years from date of Substantial Completion” .This warranty
covers the heat exchanger only. No other components.
Labor, consumables, and consequential damages are not covered by any warranty
Substantial completion is considered August 1, 2010. If Boilers are started prior to this
date warranty will begin as of the date of initial start-up. This equipment is not intended by
the engineer for temporary heat.
Instruction
No.
GF-109
AERCO INTERNATIONAL, Inc., Northvale, New Jersey, 07647 USA
Installation, Operation
& Maintenance Instructions
KC Series
Gas Fired
Boiler System
Semi-Instantaneous, Condensing,
Forced Draft,
Natural Gas and Propane Fired,
Hot Water Boiler
1,000,000 BTU/HR Input
Applicable to Serial Numbers G-02-536 and above
Patent No. 4,852,524
Printed in U.S.A.
REVISED JANUARY, 2009
Telephone Support
Direct to AERCO Technical Support
(8 to 5 pm EST, Monday through
Friday)
(800) 526-0288
The information contained in this
operation and maintenance manual is
subject to change without notice from
AERCO International, Inc.
AERCO International, Inc.
159 Paris Avenue
Northvale, NJ 07647-0128
www.aerco.com
© AERCO International, Inc., 2009
AERCO makes no warranty of any
kind with respect to this material,
including but not limited to implied
warranties of merchantability and
fitness for a particular application.
AERCO International is not liable for
errors appearing in this manual. Nor
for incidental or consequential
damages occurring in connection with
the furnishing, performance, or use of
this material.
CONTENTS
GF-109 - THE AERCO KC1000 GAS FIRED BOILER
Operating & Maintenance Instructions
FOREWARD
A
SECTION 1 – SAFETY PRECAUTIONS
Para.
1.1
1.2
Subject
Warnings & Cautions
Emergency Shutdown
Page
1-1
1-2
1-1
Para.
1.3
Subject
Prolonged Shutdown
SECTION 2 – INSTALLATION PROCEDURES
Para.
2.1
2.2
2.3
2.4
2.5
2.6
Subject
Receiving the Unit
Unpacking
Installation
Gas Supply Piping
Electrical Supply
Mode of Operation and Field
Control Wiring
Page
2-1
2-1
2-2
2-4
2-5
2-6
Para.
2.7
2.8
2.9
2.10
Page
1-2
2-1
Subject
I/O Box Connections
Auxiliary Relay Contacts
Flue Gas Vent Installation
Combustion Air
Page
2-8
2-10
2-10
2-10
SECTION 3 – CONTROL PANEL OPERATING PROCEDURES
3-1
Para.
3.1
3.2
3.3
3.4
3.5
Subject
Introduction
Control Panel Description
Control Panel Menus
Operating Menu
Setup Menu
Page
3-1
3-1
3-3
3-4
3-4
Para.
3.6
3.7
3.8
3.9
Subject
Configuration Menu
Tuning Menu
Start Sequence
Start/Stop Levels
SECTION 4 – INITIAL START-UP
Para.
4.1
4.2
4.3
Subject
Initial Startup Requirements
Tools and Instrumentation for
Combustion Calibration
Combustion Calibration
4-1
Page
4-1
4-1
Para.
4.4
4.5
4.6
4-2
Subject
Propane Combustion Calibration
Unit Reassembly
Over-Temperature Limit Switch
Adjustments
Section 5 – MODE OF OPERATION
Para.
5.1
5.2
5.3
5.4
5.5
Subject
Introduction
Indoor/Outdoor Reset Mode
Constant Setpoint Mode
Remote Setpoint Modes
Direct Drive Modes
Page
3-5
3-6
3-7
3-9
Page
5-1
5-1
5-2
5-2
5-3
Page
4-5
4-6
4-6
5-1
Para.
5.6
5.7
Subject
Boiler Management System
(BMS)
Combination Control System
(CCS)
Page
5-4
5-5
i
CONTENTS
SECTION 6 – SAFETY DEVICE TESTING PROCEDURES
6-1
Para.
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Page
6-4
6-4
6-5
Subject
Testing of Safety Devices
Low Gas Pressure Fault Test
High Gas Pressure Fault Test
Low Water Level Fault Test
Water Temperature Fault Test
Interlock Fault Tests
Flame Fault Test
Page
6-1
6-1
6-1
6-2
6-2
6-3
6-3
Para.
6.8
6.9
6.10
6.11
6.12
Subject
Air Flow Fault Test
SSOV Proof of Closure Switch
Purge Switch Open During
Purge
Ignition Switch Open During
Ignition
Safety Pressure Relief Valve
Test
SECTION 7 – MAINTENANCE
Para.
7.1
7.2
7.3
7.4
Subject
Maintenance Schedule
Spark Ignitor
Flame Detector
Combustion Calibration
Page
7-1
7-1
7-2
7-2
Para.
7.5
7.6
7.7
Subject
Safety Device Testing
Manifold and Exhaust Tubes
Heat Exchanger Water Side
Injection
Condensate Drain Assembly
SECTION 8 – TROUBLESHOOTING
Page
7-2
7-2
7-5
7-6
8-1
Subject
Page
8-1
Para.
Subject
Boiler Menu Item Descriptions
Startup, Status and Fault
Messages
Temperature Sensor Resistance
Chart
Indoor/Outdoor Reset Ratio
Charts
Page
A-1
B-1
App
E
F
G
H
I
Introduction
6-6
7-1
7.8
Para.
8.1
6-5
Subject
Page
APPENDICES
App
A
B
C
D
WARRANTIES
ii
C-1
Subject
Boiler Default Settings
Dimensional and Part Drawings
Piping Drawings
Wiring Schematics
KC1000 Control Panel Views
Page
E-1
F-1
G-1
H-1
I-1
D-1
W-1
FOREWORD
Foreword
The AERCO KC boiler is a true industry advance that meets the needs of today's energy and
environmental concerns. Designed for application in any closed loop hydronic system, the load
tracking capability relates energy input directly to fluctuating system loads through a 20:1
modulating turndown ratio for natural gas units and 14:1 for propane units. The boiler’s
condensing capability offers extremely high efficiencies and makes the KC boiler ideally suited
for modern low temperature, as well as, conventional heating systems.
The KC boiler can be used singular or in modular arrangements for inherent standby with
minimum space requirements. Venting capabilities offer maximum flexibility and allow
installation without normal restrictions. The advanced electronics of each boiler module offer
selectable modes of operation and interface capabilities.
After prolonged shutdown, it is recommended that the startup procedures in Section 4 and test
procedures in Section 6 of this manual be performed, to verify system operating parameters. If
there is an emergency, turn off the electrical power supply to the Aerco boiler or close the
manual gas valve located before the unit. The installer is to identify the emergency shut-off
device. FOR SERVICE OR PARTS, contact your local sales representative or AERCO
INTERNATIONAL.
NAME:
ORGANIZATION:
ADDRESS:
TELEPHONE:
INSTALLATION DATE: _____________________________________________
A
SAFETY PRECAUTIONS
SECTION 1 -- SAFETY PRECAUTIONS
1.1 WARNINGS & CAUTIONS
Installers and operating personnel MUST, at all
times, observe all safety regulations. The
following warnings and cautions are general and
must be given the same attention as specific
precautions included in these instructions. In
addition to all the requirements included in this
AERCO Instruction Manual, the installation of
units MUST conform with local building codes,
or, in the absence of local codes, ANSI Z223.1
(National Fuel Gas Code Publication No. NFPA54) for gas-fired boilers and ANSI/NFPASB for
LP gas-fired boilers. Where applicable, the
equipment shall be installed in accordance with
the current Installation Code for Gas Burning
Appliances and Equipment, CGA B149, and
applicable Provincial regulations for the class;
which should be carefully followed in all cases.
Authorities having jurisdiction should be
consulted before installations are made.
See pages 1-2 and 1-3 for important
information regarding installation of units
within the Commonwealth of Massachusetts.
IMPORTANT
This Instruction Manual is an integral
part of the product and must be
maintained in legible condition. It must
be given to the user by the installer
and kept in a safe place for future
reference.
WARNINGS!
MUST BE OBSERVED TO PREVENT
SERIOUS INJURY.
WARNING!
BEFORE
ATTEMPTING
TO
PERFORM ANY MAINTENANCE ON
THE UNIT, SHUT OFF ALL GAS AND
ELECTRICAL INPUTS TO THE UNIT.
WARNING
DO NOT USE MATCHES, CANDLES,
FLAMES, OR OTHER SOURCES OF
IGNITION TO CHECK FOR GAS
LEAKS.
WARNING!
THE EXHAUST VENT PIPE OF THE
UNIT OPERATES UNDER A POSITIVE PRESSURE AND THEREFORE MUST BE COMPLETELY
SEALED TO PREVENT LEAKAGE
OF COMBUSTION PRODUCTS INTO
LIVING SPACES.
WARNING!
FLUIDS UNDER PRESSURE MAY
CAUSE INJURY TO PERSONNEL
OR DAMAGE TO EQUIPMENT
WHEN RELEASED. BE SURE TO
SHUT OFF ALL INCOMING AND
OUTGOING
WATER
SHUTOFF
VALVES. CAREFULLY DECREASE
ALL TRAPPED PRESSURES TO
ZERO
BEFORE
PERFORMING
MAINTENANCE.
WARNING!
ELECTRICAL VOLTAGES OF 120
VAC ARE USED IN THIS EQUIPMENT. THEREFORE THE COVER
ON THE UNIT’S POWER BOX
(LOCATED ON THE FRONT RIGHT
SIDE OF THE UNIT UNDER THE
HOOD AND SHEET METAL SIDE
PANEL) MUST BE INSTALLED AT
ALL TIMES, EXCEPT DURING
MAINTENANCE AND SERVICING.
CAUTIONS!
Must be observed to prevent equipment damage or loss of operating
effectiveness.
CAUTION!
Many soaps used for gas pipe leak
testing are corrosive to metals. The
piping must be rinsed thoroughly with
clean water after leak checks have
been completed.
CAUTION!
DO NOT use this boiler if any part has
been under water. Call a qualified
service technician to inspect and
replace any part that has been under
water.
1-1
SAFETY PRECAUTIONS
1.2 EMERGENCY SHUTDOWN
If overheating occurs or the gas supply fails to
shut off, close the manual gas shutoff valve
(Figure 1-1) located external to the unit.
IMPORTANT
The Installer must identify and indicate
the location of the emergency shutdown
manual gas valve to operating personnel.
1.3 PROLONGED SHUTDOWN
After prolonged shutdown, it is recommended
that the startup procedures in Chapter 4 and the
safety device test procedures in Chapter 5 of
this manual be performed, to verify all systemoperating parameters. If there is an emergency,
turn off the electrical power supply to the
AERCO boiler and close the manual gas valve
located upstream the unit. The installer must
identify the emergency shut-off device.
Figure 1-1
Manual Gas Shutoff Valve
IMPORTANT – FOR MASSACHUSETTS INSTALLATIONS
Boiler Installations within the Commonwealth of Massachusetts must conform to the following
requirements:
•
Boiler must be installed by a plumber or a gas fitter who is licensed within the Commonwealth of
Massachusetts.
•
Prior to unit operation, the complete gas train and all connections must be leak tested using a
non-corrosive soap.
•
If a glycol solution is used as anti-freeze protection, a backflow preventer must be installed
upstream of the Fill/Makeup Valve.
•
The vent termination must be located a minimum of 4 feet above grade level.
•
If side-wall venting is used, the installation must conform to the following requirements extracted
from 248 CMR 5.08 (2):
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or
structure used in whole or in part for residential purposes, including those owned or operated by the
Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, including but not limited to decks and porches, the following
requirements shall be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the
side wall horizontal vented gas fueled equipment, the installing plumber or gasfitter shall observe
that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on the
floor level where the gas equipment is to be installed. In addition, the installing plumber or
gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an
alarm is installed on each additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to
secure the services of qualified licensed professionals for the installation of hard wired carbon
monoxide detectors.
1-2
SAFETY PRECAUTIONS
Extracted Information From 248 CMR 5.08 (2) – Continued
a. In the event that the side wall horizontally vented gas fueled equipment is installed in
a crawl space or an attic, the hard wired carbon monoxide detector with alarm and
battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of
completion of installation, the owner shall have a period of thirty (30) days to comply with
the above requirements; provided, however, that during said thirty (30) day period, a
battery operated carbon monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as
required in accordance with the above provisions shall comply with NFPA 720 and be ANSI/UL
2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior
of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust
vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign
shall read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled
equipment shall not approve the installation unless, upon inspection, the inspector observes
carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR
5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the
most current edition of NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or
structure separate from the dwelling, building or structure used in whole or in part for residential
purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When
the manufacturer of Product Approved side wall horizontally vented gas equipment provides a venting
system design or venting system components with the equipment, the instructions provided by the
manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system
components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED.
When the manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does
not provide the parts for venting the flue gases, but identifies "special venting systems", the following
requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or
equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions
for that system shall include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled
equipment, all venting instructions, all parts lists for venting instructions, and/or all venting design
instructions shall remain with the appliance or equipment at the completion of the installation.
_______________________________ [End of Extracted Information From 248 CMR 5.08 (2)]
1-3
INSTALLATION
SECTION 2 - INSTALLATION PROCEDURES
2.1. RECEIVING THE UNIT
Each KC1000 Boiler is shipped as a single
crated unit. The crated unit shipping weight is
approximately 1500 pounds. It must be moved
with the proper rigging equipment for safety and
to avoid unit damages. The unit should be
completely inspected for shipping damage and
completeness at the time of receipt from the
carrier and before the bill of lading is signed.
Each unit has Tip-N-Tell indicator on the outside
of the crate, that indicates if the unit has been
turned on its side. If the Tip-N-Tell indicator is
tripped, do not sign for the shipment. Request a
freight claim and inspection by a claims adjuster
before proceeding or refuse delivery of the
equipment.
immediately if any damage is detected. The
following accessories come standard with each
unit and are packed separately within the unit’s
packing container
•
•
•
•
•
•
•
•
•
•
•
•
Spare Spark Ignitor
Spare Flame Detector
Manual 1-1/4" Gas Shutoff Valve
Drain Valve Assembly
ASME Pressure Relief Valve
Ignitor Removal Tool (One per Site)
Regulator Adjustment Tool (One per site)
Temperature/Pressure Gauge and Fittings
2 Lifting Lugs
Stainless Steel Condensate Cup
Shell Cap
Wing Nut for Shell Cap
2.2. UNPACKING
Carefully unpack the unit. Take care not to
damage the unit jacket when cutting away
packaging materials. An inspection of the unit
should be made to determine if damage during
shipment occurred that was not indicated by the
Tip-N-Tell. The freight carrier should be notified
Optional accessories are also separately packed
within the unit’s packing container. Standard and
optional accessories shipped with the unit
should be identified and put in a safe place until
installation or use.
Figure 2.1. Boiler Clearances
2-1
INSTALLATION
2.3 INSTALLATION
The unit must be installed with the prescribed
clearances for service as shown in Figure 2.1.
The minimum clearance dimensions, required by
AERCO, are listed below. Local building codes
may require more clearance and take
precedence
Minimum clearances required:
Sides
24"
Front
18"
Rear
18"
Top
18"
In multiple unit installations, it is important to
plan the position of each unit. Sufficient space
for piping connections and future maintenance
requirements must be given. All piping must
include ample provision for expansion.
If installing a Combination Control (CCP)
system, it is important to identify and place the
Combination Mode units in the proper physical
location.
All gas piping, water piping, and electrical
conduit or cable must be arranged so that they
do not interfere with the removal of any cover, or
inhibit service or maintenance of the unit.
WARNING!
KEEP UNIT AREA CLEAR AND FREE
FROM COMBUSTIBLE MATERIALS AND
FLAMMABLE VAPORS AND LIQUIDS.
MASSACHUSETTS INSTALLATIONS
For boiler installations within the
Commonwealth of Massachusetts, the
boiler must be installed by a plumber or
gas fitter who is licensed within the
Commonwealth. In addition, the boiler
installation must comply with all
requirements specified in Section 1
(Safety Precautions), pages 1-2 and 1-3.
2.3.1. SETTING THE UNIT
Remove the unit from the wooden skid and
place in position using a block and tackle or
hoist attached to the lifting lugs, (see Fig. 2. 2).
USE ONLY THE LIFTING LUGS TO MOVE
THE UNIT.
The KC-1000 is U/L approved for installation on
combustible flooring. A 4” to 6" high housekeeping concrete pad is recommended and
allows for sufficient drainage of the condensate.
It is suggested that units be secured using the
holes provided in the frame base. Piping must
not be used to secure the unit in place. See
drawing AP-A-568 in Appendix F for the base
frame dimensions.
2-2
Figure 2.2
Lifting Lug Location
2.3.2 SUPPLY AND RETURN PIPING
The locations of the 4" flanged system supply,
and return piping connections, to the unit are
shown in Figure 2.3. The return connection is
located on the left side near the base of the
unit’s shell. The supply connection is located on
the left side near the top of the unit’s shell.
INSTALLATION
relief valve in the tapping provided opposite the
system supply connection, (see figure 2.4). The
pressure relief valve should be piped in the
vertical position using the fittings supplied. A
suitable pipe compound should be used on the
threaded connections, and excess should be
wiped off to avoid getting any into the valve
body. The discharge from the relief valve should
be piped to within 12 inches of the floor to
prevent injury in the event of a discharge.
The relief piping must be full size without
reduction. No valves, restrictions, or other
blockages should be allowed in the discharge
line. In multiple unit installations the relief valve
discharge lines must not be manifolded,
(connected), together. Each must be individually
run to a suitable discharge location. The drain
valve provided should be installed on the right
hand side of the unit towards the bottom of the
shell. The valve should be pointed in the down
position, (see Fig. 2.4).
2.3.4 TEMPERATURE/PRESSURE
INDICATOR
Figure 2.3
Supply and Return Location
Whether installing single or multiple units, install
the piping and accessories as shown in the
appropriate piping diagram located in the
Appendix G. For applications other than standard space heating, consult the AERCO Boiler
Application Guide, GF-1070, or AERCO for the
appropriate piping schematics.
The unit is supplied with one of two styles of
Temperature/Pressure Indicators that must be
installed in the tapping on the supply flange of
the unit (see Figs. 2.5a and 2.5b). A suitable
pipe compound should be used sparingly to the
threaded connection.
The minimum flow rate through the unit is 25
GPM and the maximum flow rate is 150 GPM.
Each unit is fitted with 4" flanges for high flow
application and the system velocity at the unit
return should not exceed 5 feet per second.
Each unit must have individual valves on the
supply, and return, for maintenance. In multiple
unit installations, the flow through each unit must
be balanced.
Every boiler plant must have a source of makeup water to it. As with any closed loop hydronic
system, air elimination and expansion equipment must be provided as part of the overall
installation. All piping MUST include ample
provision for expansion.
2.3.3 PRESSURE RELIEF AND DRAIN
VALVE INSTALLATION
An ASME rated Relief Valve is supplied with
each unit. The supplied pressure relief valve
setpoint will be 30, 50, 75, 100, or 150 psig as
ordered from the factory. Install the pressure
Figure 2.4
Relief and Drain Valve Location
2-3
INSTALLATION
route it to a floor drain. If a floor drain is not
available, a condensate pump can be used to
remove the condensate to drain.
The
condensate drain line must be removable for
routine maintenance. Therefore, DO NOT hardpipe.
4. Replace the rear cover and side panel on the
unit.
Figure 2.5a
Pressure /Temperature Gauge Installation
Figure 2.6
Condensate Drain System Location
2.4. GAS SUPPLY PIPING
Figure 2.5b
Pressure/Temperature Gauge Installation
The AERCO Gas Fired Equipment Gas Components and Supply Design Guide (GF-1030) must be
consulted before any gas piping is designed or
started.
WARNING!
2.3.5 CONDENSATE PIPING
The KC Boiler is designed to condense.
Therefore, the installation site must include
suitable provisions for condensate drainage or
collection. A stainless steel condensate cup is
separately packed within the unit’s shipping
container. To install the condensate cup,
proceed as follows:
1. Remove the left side panel and only the left
half of the rear cover to provide access to the
exhaust manifold and burner (Figure 2.6).
2. Insert the 1-3/4 inch manifold drain hose into
the condensate cup. Allow the cup to rest on
the floor directly beneath the manifold drain
hole (Figure 2.6).
3. Attach a length of 3/4 inch I.D. polypropylene
tubing to the condensate cup drain tube and
2-4
DO NOT USE MATCHES, CANDLES,
FLAMES OR OTHER SOURCES OF
IGNITION TO CHECK FOR GAS LEAKS.
CAUTION!
Soaps used for gas pipe leak testing can be
corrosive to metals. Piping must be rinsed
thoroughly with clean water after leak
checks have been completed.
NOTE:
All gas piping must be arranged so that it
does not interfere with removal of any
cover, inhibit service or maintenance, or
prevent access between the Unit and walls,
or another unit.
INSTALLATION
The location of the 1-1/4" inlet gas connection is
on the right side of the unit as shown in Figure
2.7.
All pipe should be de-burred and internally
cleared of any scale or iron chips before
installation. No flexible connectors or nonapproved gas fittings should be installed. Piping
should be supported from floor or walls only and
must not be secured to the unit.
A suitable piping compound, approved for use
with gas, should be used sparingly. Any excess
must be wiped off to prevent clogging of
components.
To avoid damage to the unit, when pressure
testing gas piping, isolate the unit from the
supply gas piping. At no time should there be
more than 14” W.C. the unit. Bubble test all
external piping thoroughly for leaks using a
soap and water solution or suitable equivalent.
The gas piping must meet all applicable codes.
it. When the gas supply pressure will not exceed
14” W.C. a non-lock up or flow through style
regulator may be used. When supply gas
pressure will exceed 14” W.C., a lock up style
regulator must be used. The gas supply
regulator must be propery vented to outdoors.
Consult the local gas utility for exact
requirements concerning venting of supply gas
regulators.
CAUTION!
A lockup style regulator must be used when
gas supply pressure exceeds 14” W.C.
2.4.2 MANUAL GAS SHUTOFF VALVE
A 1-1/4” manual gas shut-off valve is furnished
with each unit. The valve should be positioned
as shown in Figure 2.7. The manual gas shut-of
valve must be installed upstream of the supply
regulator in a readily accessible location.
2.4.1 GAS SUPPLY PRESSURE
REGULATOR
An external, in-line, supply gas regulator
(supplied by others) should be positioned as
shown in Figure 2.7. Union connections should
be placed in the proper locations to allow
maintenance of the regulator if required
NOTE:
An individual gas pressure regulator must
be installed upstream of each KC1000. The
regulator must regulate gas pressure to 8.5”
W.C. at 1,000,000 BTU/H for natural gas
and propane units.
The maximum static inlet pressure to the unit
must be no more than 14” water column.
Minimum gas pressure is 8.5” W.C. for FM gas
trains and 8.9” W.C. for IRI gas trains when the
unit is firing at maximum input. Gas pressure
should not exceed 10.5” W.C. at any time when
firing. Proper sizing of the gas supply regulator
in delivering the correct gas flow and outlet
pressure is mandatory. The gas supply pressure
regulator must maintain the gas pressure at a
regulated 8.5” W.C. minimum for FM gas trains
and 8.9” W.C. for IRI gas trains at maximum
BTU input (1,000,000 BTU/HR) for natural gas
and propane installations. The supply gas
regulator must be of sufficient capacity volume,
(1000 cfh), for the unit and should have no more
than 1" droop from minimum to full fire. The
supply gas regulator must also be rated to
handle the maximum incoming gas pressure to
Figure 2.7
Gas Supply Regulator and Manual Shut -Off
Valve Location
2.4.3 IRI GAS TRAIN KIT
The IRI gas train is an optional gas train
required in some areas by code or for insurance
purposes. The IRI gas train is factory pre-piped
and wired. (Refer to Appendix F, Drawing No.
SD-A-584).
2.5 ELECTRICAL SUPPLY
The AERCO Gas Fired Equipment Electrical
Power Wiring Guide, (GF-1060), must be
consulted in addition to the following material
before wiring to the unit is started. AC power
2-5
INSTALLATION
connection to the unit are made at the Power
Box.This box is located on the front right side of
the unit as shown in Figure 2.8. Conduit should
be run from the knockouts in the side of the box
in such a manner that it does not interfere with
the removal of any sheet metal covers. A flexible
electrical connection may be utilized to allow the
covers to be easily removed.
POWER BOX
Figure 2.9
AC Power Wiring Diagram
2.6 MODE OF OPERATION and FIELD
CONTROL WIRING
The KC Boiler is available in several different
modes of operation. While each unit is factory
configured and wired for the mode specified on
the equipment order, some field wiring may be
required to complete the installation. This wiring
is typically routed to the Input/Output (I/O) Box
located on the left side of the unit beneath the
removable side panel (see Fig. 2.10). Field
wiring for each particular mode of operation is
described in the following paragraphs. For
additional information concerning modes of
operations, refer to Section 5.
FRAME
SSOV
ACTUATOR
BLOWER
Figure 2.8
AC Power Box Location
NOTE:
All electrical conduit and hardware should
be installed so that it does not interfere with
the removal of any cover, inhibit service or
maintenance, or prevent access between
the unit and walls or another unit.
2.5.1 ELECTRICAL REQUIREMENTS
Electrical requirements for each unit are 120
VAC, 1 Phase, 60 Hz, 20 Amps from a
dedicated electrical circuit. No other devices
should be on the same electrical circuit as a
KC1000 unit. A means for disconnecting AC
power from the unit (such as a service switch)
must be installed near the unit for normal operation and maintenance. All electrical connections
should be made in accordance with the National
Electrical Code and/or with any applicable local
codes.
The AC power wiring diagram is shown in Figure
2.9.
2-6
Figure 2.10
Input/Output (I/O) Box Location
INSTALLATION
2.6.1 CONSTANT SETPOINT MODE
2.6.2 INDOOR/OUTDOOR RESET MODE
The Constant Setpoint Mode is used when it is
desired to have a fixed setpoint that does not
deviate. No wiring connections other than
electrical supply connections are required for
this mode. However, if desired, fault monitoring
or enable/disable interlock wiring can be utilized
(see paragraphs 2.7.9 and 2.7.10).
This mode of operation increases supply water
temperature as outdoor temperatures decrease.
An outside air temperature sensor (AERCO PN
122790) is required. The sensor MUST BE
wired to the I/O Box wiring terminals (see Fig.
2.11). For more information concerning the
outside air sensor installation, refer to paragraph
2.7.1. For programming and setup instructions
concerning the indoor/outdoor-reset mode of
operation, refer to Section 5, paragraph 5.1.
.
OUTDOOR SENSOR IN
SENSOR COMMON
AUX SENSOR IN
REMOTE INTL'K IN
EXHAUST SWITCH IN
DELAYED INTL'K IN
NOT USED
NOT USED
NC
COM
NO
+
ANALOG IN +
B.M.S. (PWM) IN -
NC
COM
NO
RS-485
COMM.
AUX RELAY
120 VAC, 5A, RES
NOT USED
SHIELD
mA OUT
FAULT RELAY
120 VAC, 5A, RES
+
+
G
-
RELAY CONTACTS:
120 VAC, 30 VDC
5 AMPS RESISTIVE
DANGER
120 VAC USED
IN THIS BOX
NOT USED
Figure 2.11
I/O Box Terminal Strip
2.6.3
BOILER MANAGEMENT SYSTEM
(BMS) MODE
NOTE
BMS Model 168 can utilize either pulse
width modulation (PWM) or RS485
Modbus signaling to the Boiler. BMS II
Model 5R5-384 can utilize only RS485
signaling to the Boiler.
When using an AERCO Boiler Management
System (BMS), the field wiring is connected
between the BMS Panel and each Boiler’s I/O
Box terminal strip (Figure 2-11). Twisted
shielded pair wire from 18 to 22 AWG must be
utilized for the connections. The BMS Mode can
utilize either pulse width modulation (PWM)
signaling, or RS485 Modbus signaling. For PWM
signaling, connections are made from the
AERCO Boiler Management System to the
B.M.S. (PWM) IN terminals on the I/O Box
terminal strip. For RS485 Modbus signaling,
connections are made from the BMS to the
RS485 COMM terminals on the I/O Box terminal
strip. Polarity must be maintained and the shield
must be connected only at the AERCO BMS.
The boiler end of the shield must be left floating.
For additional instructions, refer to Chapter 5,
paragraph 5.6 in this manual. Also, refer to GF108M (BMS Model 168) and GF-124 (BMS II
Model 5R5-384), BMS -Operations Guides.
2.6.4 REMOTE SETPOINT and DIRECT
DRIVE MODES
The KC1000 Boiler can accept several types of
signal formats from an Energy Management
System or other source to control either the
setpoint (Remote Setpoint Mode) or firing rate
2-7
INSTALLATION
(Direct Drive Mode) of the Boiler. These formats
are:
4 to 20 mA/1 to 5 Vdc
0 to 20 mA/0 to 5 Vdc
PWM – (Pulse Width Modulated signal. See
paragraph 2.7.4)
Network – (RS485 Modbus. See para. 2.7.7)
While it is possible to control one or more boilers
using one of the above modes of operation, it
may not be the method best suited for the
application. Prior to selecting one of the above
modes of operation, it is recommended that you
consult with your local AERCO representative or
the factory for the mode of operation that will
work best with your application. For more
information on wiring the 4 to 20 mA / 1to 5VDC
or the 0 to 20 mA / 0 to 5 VDC, see paragraph
2.7.3.
2.6.5 COMBINATION MODE
NOTE
Only BMS Model 168 can be utilized for
the Combination Mode, not the BMS II
(Model 5R5-384).
With a Combination Mode unit, field wiring is
between the unit’s I/O Box, the CCP
(Combination Control Panel), and the BMS
Model 168 (Boiler Management System). The
wiring must be done using a shielded twisted
pair of 22 AWG wire. Polarity must be
maintained between the unit, the CCP, and the
BMS.
For further instructions and wiring
diagrams, refer to the GF-108 Boiler
Management System Operations Guide and the
CCP-1 data sheet.
2.7 I/O BOX CONNECTIONS
The types of input and output/signals and
devices to be connected to the I/O Box terminals
shown in Figure 2.11 are described in the
following paragraphs.
CAUTION!
DO NOT make any connections to the I/O
Box terminals labeled “NOT USED”.
Attempting to do so may cause equipment
damage.
2-8
2.7.1 OUTDOOR SENSOR IN
An outdoor air temperature sensor (AERCO Part
No. 122790) will be required mainly for the
Indoor/Outdoor Reset mode of operation. It can
also be used with another mode if it is desired to
use the outdoor sensor enable/disable feature.
This feature allows the boiler to be enabled or
disabled based on the outdoor air temperature.
The factory default for the outdoor sensor is
DISABLED. To enable the sensor and or choose
an enable/disable outdoor temperature, see the
Configuration menu in Section 3 and Appendix
A.
The outdoor sensor may be wired up to 200 feet
from the boiler and is connected to the
OUTDOOR SENSOR IN and the SENSOR
COMMON terminals in the I/O box (see Figs.
2.10 and 2.11). Wire the sensor using a twisted
shielded pair cable of 18-22 AWG wire. There is
no polarity when terminating the wires. The
shield is to be connected only to the terminals
labeled SHEILD in the I/O Box. The sensor end
of the shield must be left free and ungrounded.
When mounting the sensor, it must be located
on the North side of the building where an
average outside air temperature is expected.
The sensor must be shielded form direct sunlight
as well as impingement by the elements. If a
shield is used, it must allow for free air
circulation.
2.7.2 AUX SENSOR IN
The AUX SENSOR IN terminals can be used to
add an additional temperature sensor for
monitoring purposes. This input is always
enabled and is a view only input that can be
seen in the operating menu. The sensor must be
wired to the AUX SENSOR IN and SENSOR
COMMON and must be similar to AERCO
BALCO wire sensor P/N 12449. A resistance
chart for this sensor can be found in Appendix
C.
2.7.3 ANALOG IN
The ANALOG IN + and – terminals are used
when an external signal is used to drive the
firing rate (Direct Drive Mode) or change the
setpoint (Remote Setpoint Mode) of the Boiler.
Either a 4 to 20 mA / 1 to 5 VDC or a 0 to 20
mA / 0 to 5 VDC signal may be used to vary the
setpoint or firing rate. The factory default setting
is 4 to 20 mA / 1 to 5 VDC, however this may be
changed to 0 to 20 mA / 0 to 5 VDC using the
Configuration Menu described in Section 3. If
INSTALLATION
voltage rather than current is selected as the
drive signal, a DIP switch must be set on the
PMC Board located inside the Control Box.
Contact the AERCO factory for information on
setting DIP switches.
All supplied signals must be floating
(ungrounded) signals. Connections between the
source and the Boiler’s I/O Box must be made
using twisted shielded pair of 18 –22 AWG wire
such as Belden 9841(see Fig. 211). Polarity
must be maintained and the shield must be
connected only at the source end and must be
left floating (not connected) at the Boiler’s I/O
Box.
Whether using voltage or current for the drive
signal, they are linearly mapped to a 40°F to
240°F setpoint or a 0% to 100% firing rate. No
scaling for these signals is provided.
2.7.4 B.M.S. (PWM) IN
NOTE
Only BMS Model 168 can utilize Pulse
Width Modulation (PWM), not the BMS II
(Model 5R5-384).
of the boiler. The exhaust sensor should be a
normally open type switch (such as AERCO Part
No. 123463) that closes (trips) at 500oF.
2.7.9 INTERLOCKS
The unit offers two interlock circuits for
interfacing with Energy Management Systems
and auxiliary equipment such as pumps or
louvers. These interlocks are called the Remote
Interlock and Delayed Interlock (Fig. 2.11). The
wiring terminals for these interlocks are located
inside the I/O Box on the left side of the unit.
The I/O Box cover contains a wiring diagram
which shows the terminal strip locations for
these interlocks which are labeled REMOTE
INTL’K IN and DELAYED INTL’K IN. Both
interlocks,
described
in
the
following
paragraphs, are factory wired in the closed
position.
NOTE:
Both the Delayed Interlock and Remote
Interlock must be in the closed position to
allow the unit to fire.
2.7.9.1 REMOTE INTERLOCK IN
These terminals are used to connect the
AERCO Boiler Management System (BMS)
Model 168 to the unit. The BMS Model 168
utilizes a 12 millisecond, ON/OFF duty cycle.
This duty cycle is Pulse Width Modulated (PWM)
to control firing rate. A 0% firing rate = a 5% ON
pulse and a 100% firing rate = a 95% ON pulse.
The remote interlock circuit (REMOTE INTL’K
IN) is provided to remotely start (enable) and
stop (disable) the Boiler if desired. The circuit is
24 VAC and comes factory pre-wired closed
(jumpered).
2.7.5 SHIELD
These terminals are used for RS-485 MODBUS
serial communication between the unit and an
external “Master”, such as a Boiler Management
System or other suitable device.
The delayed interlock circuit (DELAYED INTL’K
IN) is typically used in conjunction with the
auxiliary relay described in paragraph 2.8. This
interlock circuit is located in the purge section of
the start string. It can be connected to the
proving device (end switch, flow switch etc.) of
an auxiliary piece of equipment started by the
boiler’s auxiliary relay. The delayed interlock
must be closed for the boiler to fire. If the
delayed interlock is connected to a proving
device that requires time to close (make), a time
delay (Aux Start On Dly) that holds the start
sequence of the boiler long enough for for a
proving switch to make can be programmed.
Should the proving switch not prove within the
programmed time frame, the boiler will shut
down. The Aux Start On Dly can be
programmed from 0 to 120 seconds. This option
is locate in the Configuration Menu (Section 3).
2.7.8 EXHAUST SWITCH IN
2.7.10 FAULT RELAY
These terminals permit an external exhaust
switch to be connected to the exhaust manifold
The fault relay is a single pole double throw
(SPDT) relay having a normally open and
The SHIELD terminals are used to terminate any
shields used on sensor wires connected to the
unit. Shields must only be connected to these
terminals.
2.7.6 mA OUT
These terminals provide a 4 to 20 mA output
that can be used to monitor setpoint ( 40°F to
220°F), outlet temperature (30°F to 245°F), or
fire rate (0% to 100%). This function is enabled
in the Configuration Menu (Section 3, Table 3.4).
2.7.7 RS-485 COMM
2.7.9.2 DELAYED INTERLOCK IN
2-9
INSTALLATION
normally close set of relay contacts that are
rated for 5 amps at 120 VAC and 5 amps at 30
VDC. The relay energizes when any fault
condition occurs and remains energized until the
fault is cleared and the CLEAR button is
depressed. The fault relay connections are
shown in Figure 2.11.
2.8 AUXILIARY RELAY CONTACTS
Each Boiler is equipped with a single pole
double throw (SPDT) relay that is energized
when there is a demand for heat and deenergized after the demand for heat is satisfied.
The relay is provided for the control of auxiliary
equipment, such as pumps and louvers, or can
be used as a Boiler status indictor (firing or not
firing). Its contacts are rated for 120 VAC @ 5
amps. Refer to Figure 2.11 to locate the AUX
RELAY terminals for wiring connections.
2.9 FLUE GAS VENT INSTALLATION
The AERCO Venting and Combustion Air Guide,
GF-1050, must be consulted before any flue or
inlet air venting is designed or installed.
Suitable, U/L approved, positive pressure,
water-tight vent materials as specified in
AERCO’s GF-1050, must be used for safety and
UL certification. Because the unit is capable of
discharging low temperature exhaust gases, the
flue must be pitched back to the unit a minimum
of 1/4" per foot to avoid any condensate pooling
and to allow for proper drainage.
While there is a positive flue pressure during
operation, the combined pressure drop of vent
and combustion air systems must not exceed
140 equivalent feet of 0.81” W.C.. Fittings as
well as pipe lengths must be calculated as part
of the equivalent length. For a natural draft
installation the draft must not exceed - 0.25”
W.C..These factors must be planned into the
vent installation. If the maximum allowable
equivalent lengths of piping are exceeded, the
unit will not operate properly or reliably.
2.10 COMBUSTION AIR
The AERCO Venting and Combustion Air Guide,
GF-1050, MUST be consulted before any flue or
combustion supply air venting is designed or
started. Combustion air supply is a direct
requirement of ANSI 223.1, NFPA-54, and local
codes. These codes should be consulted before
a permanent design is determined.
The combustion air must be free of chlorine,
halogenated hydrocarbons, or other chemicals
that can become hazardous when used in gasfired equipment. Common sources of these
2-10
compounds are swimming pools, degreasing
compounds, plastic processing and refrigerants.
Whenever the environment contains these types
of chemicals, combustion air must be supplied
from a clean area outdoors for the protection
and longevity of the equipment.
The more common methods of combustion air
supply venting are outlined below. For
combustion air supply from ducting, consult the
AERCO GF-1050, Venting and Combustion Air
Guide.
2.10.1 COMBUSTION AIR FROM
OUTSIDE THE BUILDING
Air supplied from outside the building must be
provided through two permanent openings. For
each unit these two openings must have a free
area of not less than one square inch for each
4000 BTUs input of the equipment or 250
square inches of free area. The free area must
take into account restrictions such as louvers
and bird screens.
2.10.2 COMBUSTION AIR FROM INSIDE
THE BUILDING
When combustion air is provided from within the
building, it must be supplied through two
permanent openings in an interior wall. Each
opening must have a free area of not less than
one square inch per 1000 BTUH of total input or
1000 square inches of free area. The free area
must take into account any restrictions such as
louvers.
2.10.3 SEALED COMBUSTION
The KC Boiler is UL approved for 100% sealed
combustion application when installed properly.
When a sealed combustion air application is
installed, the sealed combustion air piping must
be deducted from the maximum allowable
discharge piping amounts. Each unit must have
a minimum 6" diameter connection made to the
special Inlet Air Adapter # GP-18917 available
from AERCO. This adapter bolts directly on to
the air inlet of the unit’s blower. See installation
instructions with adapter. All inlet air ducts must
be sealed air tight.
CONTROL PANEL OPERATING PROCEDURES
SECTION 3 - CONTROL PANEL OPERATING PROCEDURES
3.1. INTRODUCTION
The information in this Section provides a guide
to the operation of the KC1000 Boiler using the
Control Panel mounted on the front of the unit.
It is imperative that the initial startup of this unit
be performed by factory trained personnel.
Operation prior to initial startup by factory
trained personnel will void the equipment
warranty. In addition, the following WARNINGS
and CAUTIONS must be observed at all times.
CAUTION:
All initial installation procedures must be
satisfied before attempting to start the unit.
WARNING:
ELECTRICAL
VOLTAGES
IN
THIS
SYSTEM INCLUDE 120 AND 24 VOLTS
AC. IT MUST NOT BE SERVICED OR
ACCESSED BY OTHER THAN FACTORY
CERTIFIED SERVICE TECHNICIANS.
WARNING:
DO NOT ATTEMPT TO DRY FIRE THE
BOILER. STARTING THE UNIT WITHOUT
A FULL WATER LEVEL CAN SERIOUSLY
DAMAGE THE UNIT AND MAY RESULT IN
PERSONNEL INJURY OR PROPERTY
DAMAGE. THIS SITUATION WILL VOID
ANY WARRANTY.
3.2. CONTROL PANEL DESCRIPTION
The KC1000 Control Panel shown in Figure 3-1
contains all of the controls, indicators and
displays necessary to operate, adjust and
troubleshoot the KC1000 Boiler. These operating controls, indicators and displays are listed
and described in Table 3-1. Additional information on these items are provided in the individual
operating procedures provided in this Section.
Figure 3-1. Control Panel Front View
3-1
CONTROL PANEL OPERATING PROCEDURES
Table 3-1. Operating Controls, Indicators and Displays
ITEM
NO.
1
CONTROL, INDICATOR
OR DISPLAY
LED Status Indicators
COMM
MANUAL
REMOTE
2
DEMAND
VFD Display
3
OUTLET
TEMPERATURE
Display
4
RS-232 Port
5
6
7
READY Indicator
ON/OFF Switch
8
FAULT Indicator
9
CLEAR Key
10
MENU Keypad
LOW WATER LEVEL
TEST/RESET Switches
MENU
BACK
3-2
FUNCTION
Four Status LEDs indicate the current operating status as
follows:
Lights when RS-232 communication is occurring
Lights when the unit is being controlled using the front panel
keypad.
Lights when the unit is being controlled by an external signal
from an Energy Management System
Lights when there is a demand for heat.
Vacuum Fluorescent Display (VFD) consists of 2 lines, each
capable of displaying up to 16 alphanumeric characters. The
information displayed includes:
Startup Messages
Alarm Messages
Operating Status Messages
Menu Selection
3–Digit, 7–Segment LED display continuously displays the
outlet water temperature. The °F or °C LED next to the
display lights to indicate whether the displayed temperature is
in degrees Fahrenheit or degrees Celsius.
Port permits a Laptop Computer or External Modem to be
connected to the boiler Control Panel.
Lights when all Pre-Purge conditions have been satisified.
Enables and disables boiler operation.
Allow the operator to test the operation of the water level
monitor.
Pressing TEST opens the water level probe circuit and
simulates a Low Water Level alarm.
Pressing RESET resets the water level monitor circuit.
Pressing CLEAR resets the display.
Red FAULT LED indicator lights when a boiler alarm
condition occurs. An alarm message will appear in the VFD.
Turns off the FAULT indicator and clears trhe alarm message
if the alarm is no longer valid. Lockout type alarms will be
latched and cannot be cleared by simply pressing this key.
Troubleshooting may be required to clear these types of
alarms
Consists of 6 keys which provide the following functions for
the Control Panel Menus:
Steps through the main menu categories shown in Figure 3-2.
The Menu categories wrap around in the order shown.
Allows you to go back to the previous menu level without
changing any information. Continuously pressing this key will
bring you back to the default status display in the VFD. Also,
this key allows you to go back to the top of a main menu
category.
CONTROL PANEL OPERATING PROCEDURES
Table 3-1. Operating Controls, Indicators and Displays - Continued
ITEM
NO.
10
(Cont.)
CONTROL, INDICATOR
OR DISPLAY
▲ (Up) Arrow
▼ (Down) Arrow
When in one of the main menu categories (Figure 3-2),
pressing this key will select the displayed menu category. If
the CHANGE key was pressed and the menu item is flashing,
pressing the ▼ (Down) arrow key will increment the selected
setting.
CHANGE
Permits a setting to be changed (edited). When the
CHANGE key is pressed, the displayed menu item will begin
to flash. Pressing the ▲ or ▼ arrow key when the item is
flashing will increment or decrement the displayed setting.
Saves the modified menu information in memory. The
display will stop flashing.
This switch toggles the boiler between the Automatic and
Manual modes of operation. When in the Manual (MAN)
mode, the front panel controls are enabled and the MANUAL
status LED lights.
ENTER
11
FUNCTION
When in one of the main menu categories (Figure 3-2),
pressing this key will select the displayed menu category. If
the CHANGE key was pressed and the menu item is flashing,
pressing the ▲ arrow key will increment the selected setting.
AUTO/MAN Switch
When in the Automatic (AUTO) mode, the MANUAL status
LED will be off and the front panel controls disabled.
12
FIRE RATE Bargraph
20 segment red LED bargraph continuously shows the Fire
Rate in 5% increments from 0 to 100%
3.3. CONTROL PANEL MENUS
3.3.1. Menu Processing Procedure
The Control Panel incorporates an extensive
menu structure which permits the operator to set
up, and configure the unit. The menu structure
consists of four major menu categories as
shown in Figure 3-2. Each of the menus shown,
contain options which permit operating
parameters to be viewed or changed. The
menus are protected by a password to prevent
unauthorized use.
Accessing each menu and option is
accomplished using the Menu Keys shown in
Figure 3-1. Therefore, it is imperative that you
be thoroughly familiar with the following basic
steps before attempting to perform specific
menu procedures.
Prior to entering the correct password, the
options contained in the Operating, Setup,
Configuration and Tuning Menu categories can
be viewed. However, with the exception of
Internal Setpoint Temperature (Configuration
Menu), none of the viewable menu options can
be changed.
Once the valid password (159) is entered, the
options listed in the Setup, Configuration and
Tuning menus can be viewed and changed, if
desired.
1. The Control Panel will normally be in the
Operating Menu and the VFD will display the
current unit status. Pressing the ▲ or ▼
arrow key will display the other available data
items in the Operating Menu.
2. Press the MENU key. The display will show
the Setup Menu which is the next menu
category shown in Figure 3-2. This menu
contains the Password option which must be
entered if other menu options will be
changed.
3. Continue pressing the MENU key until the
desired menu is displayed.
3-3
CONTROL PANEL OPERATING PROCEDURES
4. With the desired menu displayed, press the
▲ or ▼ arrow key. The first option in the
selected menu will be displayed.
5. Continue to press the ▲ or ▼ arrow key until
the desired menu option is displayed.
Pressing the ▲arrow key will display the
available menu options in the Top-Down
sequence. Pressing the ▼ arrow key will
display the options in the Bottom-Up
sequence. The menu options will wraparound after the first or last available option
is reached.
6. To change the value or setting of a displayed
menu option, press the CHANGE key. The
displayed option will begin to flash. Continue
to press the ▲ or ▼ arrow key for the option
to be changed. The available menu option
choices will be displayed. The menu option
choices do not wrap around.
7. To select and store a changed menu option,
press the ENTER key.
NOTE:
The following paragraphs provide brief
descriptions of the options contained in each
menu.
Refer to Appendix A for detailed
descriptions of each menu option. Refer to
Appendix B for listings and descriptions of
displayed startup, status and error messages.
3.4. OPERATING MENU
The Operating Menu displays a number of key
operating parameters for the unit as listed in
Table 3-2. This menu is “Read-Only” and does
not allow personnel to change or adjust any of
the displayed items. Since this menu is “ReadOnly”, it can be viewed at any time without
entering a password. Press the ▲ arrow key to
display the menu items in the order listed (TopDown). Pressing the ▼ arrow key will display
the menu items in reverse order (Bottom-Up).
3.5. SETUP MENU
OPERATION
PASSWORD
SETUP
CONFIGURATION
TUNING
Figure 3-2. Menu Structure
3-4
The Setup Menu (Table 3-3) permits the
operator to set the unit password which is
required to change any of the menu options. To
prevent unauthorized use, a previously entered
password entry will time-out after 1 hour. Therefore, the password must be reentered when
required. In addition to permitting password
entries, the Setup Menu is also used to enter
date and time, language to be used for display
messages, units of temperature measurements
and entries required for external communication
and control of the unit via the RS-232 port. A
view-only software version display is also
provided to indicate the current Control Box
software version.
CONTROL PANEL OPERATING PROCEDURES
NOTE
The Outdoor Temp display item shown with an asterisk in Table
3-2 will not be displayed unless the Outdoor Sensor function has
been enabled in the Configuration Menu (Table 3-4).
Table 3-2. Operating Menu
Menu Item Display
Status Message
Active Setpoint
Aux Temp
Outdoor Temp*
Fire Rate In
Flame Strength
Run Cycles
Run Hours
Fault Log
Available Choices or Limits
Minimum
Maximum
40°F
30°F
-70°F
0%
0%
0
0
0
240°F
245°F
130°F
Max Fire Rate
100%
999,999
999,999
9
Default
0
Table 3-3. Setup Menu
Menu Item Display
Passsword
Language
Time
Date
Unit of Temp
Comm Address
Baud Rate
Software
Available Choices or Limits
Minimum
Maximum
0
9999
English
12:00 am
11:59 pm
01/01/00
12/31/99
Fahrenheit
Celsius
0
127
2400
4800
9600
19.2K
Ver 0.00
Default
0
English
Fahrenheit
0
9600
Ver 9.99
3.6. CONFIGURATION MENU
The Configuration Menu shown in Table 3-4
permits adjustment of the Internal Setpoint
(Setpt) temperature regardless of whether the
valid password has been entered. Setpt is
required for operation in the Constant Setpoint
mode. The remaining options in this menu
require the valid password to be entered, prior to
changing existing entries. This menu contains a
number of other configuration settings which
may or may not be displayed, depending on the
current operating mode setting.
NOTE:
The Configuration Menu settings shown in
Table 3-4 are Factory-Set in accordance
with the requirements specified for each
individual order. Therefore, under normal
operating conditions, no changes will be
required.
3-5
CONTROL PANEL OPERATING PROCEDURES
Table 3-4. Configuration Menu
Menu Item Display
Internal Setpt
Unit Type
Unit Size
Boiler Mode
Remote Signal
(If Mode = Remote
Setpoint, Direct Drive
or Combination)
Bldg Ref Temp
(If Boiler Mode =
Outdoor Reset)
Reset Ratio
(If Boiler Mode =
Outdoor Reset)
Outdoor Sensor
System Start Tmp
(If Outdoor Sensor =
Enabled)
Setpt Lo Limit
Setpt Hi Limit
Temp Hi Limit
Max Fire Rate
Pump Delay Timer
Aux Start On Dly
Failsafe Mode
mA Output
Lo Fire Timer
Setpt Limiting
Setpt Limit Band
3-6
Available Choices or Limits
Minimum
Maximum
Lo Temp Limit
Hi Temp Limit
Boiler
Water Heater
0.5 MBTU
1.0 MBTU
1.5 MBTU
2.0 MBTU
2.5 MBTU
3.0 MBTU
Constant Setpoint
Remote Setpoint
Direct Drive
Combination
Outdoor Reset
4 – 20 mA/1 – 5V
0 -20 mA/0 – 5V
PWM Input (BMS)
Network
40°F
240°F
0.1
9.9
Default
130°F
Boiler
1.0 MBTU
Constant
Setpoint
4 – 20 mA,
1-5V
70°F
1.2
Enabled or Disabled
30°F
100°F
Disabled
60°F
40°F
Setpt Hi Limit
Setpt Lo Limit
240°F
40°F
240°F
40%
100%
0 min
30 min
0 sec
120 sec
Shutdown or Constant Setpt
Setpoint, Outlet Temp,
Fire Rate Out, Off
2 sec
120 sec
Enabled or Disabled
0°F
10°F
60°F
200°F
215°F
100%
0 min
0 sec
Shutdown
Off
2 sec
Disabled
5°F
CONTROL PANEL OPERATING PROCEDURES
3.7. TUNING MENU
The Tuning Menu items in Table 3-5 are Factory
set for each individual unit.
Do not change these menu entries unless
specifically requested to do so by FactoryTrained personnel.
Table 3-5. Tuning Menu
Menu Item Display
Prop Band
Integral Gain
Derivative Time
Reset Defaults?
Available Choices or Limits
Minimum
Maximum
1°F
120°F
0.00
2.00
0.0 min
2.0 min
Yes
No
Are You Sure?
Default
70°F
1.00
0.0 min
No
3.8. START SEQUENCE
When the Control Box ON/OFF switch is set to
the ON position, it checks all pre-purge safety
switches to ensure they are closed. These
switches include:
• Safety Shut-Off Valve Proof of Closure
(POC) switch
• Low Water Level switch
• High Water Temperature switch
• High Gas Pressure switch
• Low Gas Pressure switch
If all of the above switches are closed, the
READY light above the ON/OFF switch will light
and the unit will be in the Standby mode.
When there is a demand for heat, the following
events will occur:
NOTE:
If any of the Pre-Purge safety device switches
are open, the appropriate fault message will be
displayed. Also, the appropriate fault messages
will be displayed throughout the start sequence,
if the required conditions are not observed.
Figure 3-3.
1. The DEMAND LED status indicator will light.
Safety Shut-Off Valve
2. The unit checks to ensure that the proof of
closure switch in the Safety Shut-Off Valve
(SSOV) is closed (Figure 3-3).
3-7
CONTROL PANEL OPERATING PROCEDURES
3. With all required safety switches closed, a
purge cycle will be initiated and the following
events will occur:
(a) Blower relay energizes and turns on
blower.
(b) Air/Fuel Valve rotates to the full-open
purge position and closes purge position
switch. The dial on the Air/Fuel Valve
(Figure 3-4) will read 100 to indicate that
the valve is full-open (100%).
(c) The FIRE RATE bargraph will show
100%.
DIAL
(DETAIL “A”)
STEPPER
MOTOR
Figure 3-5.
Blower Proof Switch
5. Upon completion of the purge cycle, the
Control Box initiates an ignition cycle and the
following events occur:
(a) The Air/Fuel Valve rotates to the low-fire
ignition position and closes the ignition
switch. The dial on the Air/Fuel Valve
(Figure 3-6) will read between 25 and 35
to indicate that the valve is in the lowfire position.
100
DETAIL "A"
Figure 3-4.
Air/Fuel Valve In Purge Position
4. Next, the blower proof switch (Figure 3-5)
closes and the display will show Purging and
indicate the elapsed time of the purge cycle
in seconds. The normal (default) time for the
purge cycle is 7 seconds.
3-8
(b) The igniter relay is activated and
provides ignition spark.
(c) The gas Safety Shut Off Valve (SSOV)
is energized (opened) allowing gas to
flow into the Air/Fuel Valve.
6. Up to 7 seconds will be allowed for ignition to
be detected. The igniter relay will be turned
off one second after flame is detected.
7. After 2 seconds of continuous flame, Flame
Proven will be displayed and the flame
strength will be indicated. After 5 seconds,
the current date and time will be displayed in
place of the flame strength.
CONTROL PANEL OPERATING PROCEDURES
BURNER
BLOWER
8. With the unit firing properly, it will be
controlled by the temperature controller
circuitry. The FIRE RATE will be continuously displayed on the front panel bargraph.
9. Once the demand for heat has been
satisfied, the Control Box will turn off the gas
valve. The blower relay will be deactivated
and the Air/Fuel Valve will be closed.
Standby will be displayed.
3.9. START/STOP LEVELS
The start and stop levels are the fire rate
percentages that start and stop the unit, based
on load. These levels are Factory preset as
follows for natural gas and propane units:
•
•
•
Start Level:
Stop Level:
Stop Level:
20% (All units)
13% (Natural Gas)
16% (Propane)
Normally, these settings should not require
adjustment.
Figure 3-6.
Air/Fuel Valve In Ignition Position
3-9
INITIAL START-UP
SECTION 4 - INITIAL START- UP
4.1 INITIAL START- UP REQUIREMENTS
The initial start-up of the KC-1000 Boiler is
comprised of the following steps:
•
•
•
•
•
installation completed 100%
combustion calibration
proper setting of controls and limits
mode of operation settings (see Section 5)
safety device testing (see Section 6)
Installation procedures should be completed
100% before performing initial start-up and initial
the start-up must be complete prior to putting the
unit into service. Starting a unit without the
proper piping, venting, or electrical systems can
be dangerous and void the product’s warranty.
These start-up instructions should be precisely
followed in order for the unit to operate safely, at
a high thermal efficiency, and with low flue gas
emissions.
Initial unit start-up is to be performed ONLY by
AERCO factory trained start-up and service
personnel. After following the steps in this
section, it will be necessary to perform the mode
of operation settings in section 5, and the safety
control test procedures in section 6 to complete
the initial unit start-up.
An AERCO Gas Fired Startup Sheet included
with each KC-1000 must be completed for each
unit for warranty validation and a copy must be
returned promptly to AERCO at:
AERCO International, Inc.
159 Paris Ave.
Northvale, NJ 07647
WARNING!
DO NOT ATTEMPT TO FIRE THE UNIT
WITHOUT FULL WATER LEVEL. THIS
CAN SERIOUSLY DAMAGE THE UNIT
AND MAY RESULT IN PERSONAL
INJURY OR PROPERTY DAMAGE. THIS
IS NOT COVERED BY WARRANTY.
CAUTION!
All installation procedures in Section 2 must
be completed before attempting to start the
unit.
4.2 TOOLS AND INSTRUMENTATION
FOR COMBUSTION CALIBRATION
To properly perform combustion calibration, the
proper instruments and tools must be used and
correctly installed on the unit. The following
paragraphs outline the necessary tools and
instrumentation as well as their installation.
4.2.1 REQUIRED TOOLS AND
INSTRUMENTATION
The following tools and instrumentation are
necessary to perform combustion calibration of
the unit:
1. A digital combustion analyzer with oxygen
accuracy to 0.4%, and carbon monoxide in
PPM.
2. *A 16" W.C. manometer and plastic tubing.
3. One 1/4” and two 1/8” NPT-to-barbed fittings
for use with manometers.
4. AERCO differential gas pressure regulator
adjustment tool P/N GM-122643 (one is
supplied per installation)
5. Small and large flat blade screwdrivers.
6. 7/16" open end wrench and small adjustable
wrenches.
7. Tube of silicone adhesive
*For propane fired units: an additional 8" W.C.
manometer and 1/2" NPT to barbed fitting is
needed.
4.2.2 INSTALLING THE SUPPLY GAS
MANOMETER
1. Close the main manual gas supply valve up
stream of the unit.
2. Remove the 1/4" NPT pipe plug from the
port on the inlet side of the safety shut off
valve (see Figure 4.1).
3. Install a barbed fitting into the pipe plug
tapping.
4. Attach one end of a length of plastic tubing
to the barbed fitting and one end to the 16"
W.C. manometer.
4-1
INITIAL START-UP
4.2.4 INSTALLING THE DIFFERENTIAL
REGULATOR ADJUSTMENT TOOL
1. Remove the cap from the differential pressure regulator (see Fig. 4.3).
2. Place the gasket from the regulator cap onto
the regulator adjustment tool.
3.
Prior to Installing the tools on the regulator
pull up the tool's screwdriver blade. Then
thread the tool into the regulator.
4. Engage the tool’s screwdriver blade into the
regulator’s adjustment screw slot.
.
Figure 4.1
1/8” Gas Plug Location
4.2.3 PREPARING THE FLUE VENT
PROBE HOLE
1.
If the unit has been installed using the
recommended AL29-4C vent, there will be a
3/8” hole, 18” to 24” above the exhaust
manifold. The outer vent section, that covers
vent section connections must be loosened
and moved to uncover the hole (see Fig.
4.2).
2. If equipped with one, adjust the stop on the
combustion analyzer probe so that it extends
into the flue gas flow without hitting the
opposite wall of the flue. Do not insert the
probe at this time.
Figure 4.3
Differential Regulator Adjustment Tool
Installation
IMPORTANT
The unit is shipped from the factory set up for
either natural gas or propane, as specified by the
Style No. on the Sales Order.
For propane units, refer to paragraph 4.4.
4.3 NATURAL GAS COMBUSTION
CALIBRATION
The KC-1000 is shipped combustion calibrated
from the factory. Recalibration as part of a startup is necessary due to altitude, gas BTU
content, gas supply piping and supply regulators.
Factory test data sheets are shipped with each
unit as a reference.
Figure 4.2
Analyzer Probe Hole Location
4-2
The following combustion calibration procedure
closely follows the factory procedure. By
following this procedure, readjustment of the
combustion settings will be kept to a minimum.
INITIAL START-UP
1. Open the supply and return valves to the unit
and ensure that the system pumps are
running.
2. Open the gas supply valve(s) to the unit.
3. If a lockup style regulator is installed as a
gas supply regulator, adjust the gas supply
until a reading of 12” W.C. static pressure is
obtained.
4. Set the ON/OFF switch to the OFF position.
Turn on AC power to the unit. The display
will show LOSS OF POWER and the time
and date.
5. Set the unit to the Manual Mode by pressing
the AUTO/MAN switch. A flashing Manual
Fire Rate message will be displayed with the
present rate in %. Also, the MANUAL LED
will light.
NOTE:
For a review of control panel
procedures, refer to Section 3.
operating
6. Adjust the rate to 0% by pressing the ▼
arrow key.
7. Set the ON/OFF switch to the ON position.
8. Change the firing rate to 25% using the ▲
arrow key. This will put the unit into the
starting sequence.
NOTE:
On initial start-up, or return to service from a
fault condition, the unit will remain at a 29% firing
rate for two-minutes, although the control signal
may indicate a greater input.
9. Following the warm-up period, increase the
firing rate in 20% increments while monitoring the gas pressure after every increase. If
gas pressure dips below 8.5” W.C. for FM
gas trains and 8.9” for IRI gas trains at any
input percentage, stop and raise the
pressure. Once 100% is reached, adjust the
gas pressure for 8.5” W.C. or 8.9” W.C.
NOTE:
If 8.5” W.C. for FM gas trains or 8.9” W.C. for IRI
gas trains cannot be obtained at the 100% firing
rate, it will be necessary to stop calibration and
contact the local AERCO representative in your
area. Running the unit on insufficient gas
pressure will void the warranty
10. Once 8.5” W.C. or 8.9” W.C. is set at the
100% level change the firing rate to 30%.
Insert the combustion analyzer probe into
the stack.
NOTE:
Always go to a percentage of firing rate from the
same direction, (i.e., 100% to 30% or 30% to
20%). Whenever going to a firing rate from
below (i.e., 20% to 30%), first go above then
back down to the desired firing rate. This is
necessary due to hysteresis in the air/fuel
stepper motor. Hysteresis causes the air/fuel
valve to stop in a slightly different position if the
firing rate percentage is approached from below
or above. This results in a difference in oxygen
readings for the same firing rate percentage
causing unnecessary recalibration.
11. Allow enough time for the combustion
analyzer to settle. Compare the measured
oxygen level to the oxygen range for intake
air temperature in Table 1.
Table 1
Combustion Oxygen Levels for a 30%
Firing Rate
Inlet Air
Temp
-20°F
0°F
10°F
30°F
50°F
60°F
70°F
80°F
90°F
100°F
Oxygen
(+0.2/-1.0)
7.5 %
7.3 %
7.2 %
6.8 %
6.4 %
6.2 %
6.0 %
5.8 %
5.6 %
5.4 %
Carbon
Monoxide
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
4-3
INITIAL START-UP
12. If the measured oxygen level is within the
range in Table 1, no adjustment is
necessary. Proceed to step 17.
13. If the measured oxygen level is below the
range in Table 1, rotate the differential
regulator adjustment tool counterclockwise
1/4 to 1/2 revolution to decrease gas flow.
14. Wait for the combustion analyzer to settle,
then compare the new oxygen reading to
Table 1. Repeat adjustment until oxygen is
within the specified range.
15. If the measured oxygen level is above the
oxygen range in Table 1, rotate the
differential regulator adjustment tool clockwise 1/4 to 1/2 revolution to increase gas
flow.
16. Wait for the analyzer reading to settle, then
compare the new reading to Table 1. Repeat
adjustment until oxygen is within the
specified range.
NOTE:
Adjust only the differential regulator at 30%
control signal; do not adjust the air shutter.
17. Once the oxygen level is within the specified
range at 30%, change the firing rate to 16%.
18. Oxygen levels at the 16% firing rate should
be as shown in Table 2. No adjustment
should be necessary. Contact the Factory if
the oxygen or carbon monoxide levels are
not within the specified range.
19. Change the firing rate to 100%. After the
combustion analyzer has settled, compare
the measured oxygen level with the levels in
Table 3.
20. If the measured oxygen reading is below the
oxygen range in Table 3, loosen the two
bolts that secure the inlet air shutter to the
unit using a 7/16” wrench (see Fig. 4.4).
Open the shutter 1/4” to 1/2” to increase the
oxygen level, then tighten the nuts.
21. Wait for the analyzer to settle then compare
the new oxygen reading to Table 3. Repeat
the inlet air shutter adjustment until the
oxygen is within the specified range. Firmly
tighten the inlet air shutter locking nuts when
finished.
Table 3
Combustion Oxygen Levels for a 100%
Firing Rate
Inlet Air
Temp
-20°F
0°F
10°F
30°F
50°F
60°F
70°F
80°F
90°F
100°F
Oxygen
(+0.2/-1.0)
6.5 %
6.3 %
6.2 %
5.8 %
5.4 %
5.2 %
5.0 %
4.8 %
4.6 %
4.4 %
Carbon
Monoxide
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
<150 ppm
REMINDER:
Table 2
Combustion Oxygen Levels for a 16%
Firing Rate
Inlet Air
Temp
-20°F
0°F
10°F
30°F
50°F
60°F
70°F
80°F
90°F
100°F
Oxygen
(+0.2/-1.0)
<12 %
<12 %
<12 %
<12 %
<11 %
<11 %
<11 %
<11 %
<10 %
<10 %
At 30% firing rate, adjust only the differential
pressure regulator. At 100% firing rate, adjust
only the inlet air shutter.
Carbon
Monoxide
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
<50 ppm
Figure 4.4
Air Shutter Locking Nut Location
4-4
INITIAL START-UP
22. If the measured oxygen reading is above the
oxygen range in Table 3, loosen the two
7/16" locking nuts securing the inlet air
shutter. Close the air shutter 1/4” to 1/2” to
decrease the oxygen level and tighten the
two nuts.
23. Allow the analyzer to settle then compare the
new oxygen reading to Table 3.
24. Repeat the adjustment until the oxygen is
within the specified range. Firmly tighten the
inlet air shutter locking nuts when finished.
NOTE:
Adjust the inlet air shutter only at 100% firing
rate. Do not adjust the differential pressure
regulator.
25. Change the firing rate to 30%. Allow time for
the combustion analyzer to settle. Check the
measured oxygen reading to insure that it is
still within the range as per Table 1.
26. Continue this procedure until all oxygen
levels are within the ranges specified in
Tables 1, 2 and 3.
27. Record all readings on the AERCO start-up
sheet provided with each unit. Proceed to
paragraph 4.5.
4.4 PROPANE COMBUSTION
CALIBRATION
NOTE:
The combustion calibration data in Tables 1, 2
and 3 apply to both natural gas and propane
units. Therefore, refer to these Tables when
performing propane combustion calibration.
4. While performing the combustion calibration
procedure in paragraph 4.3, measure the
pressure drop across the air/propane mixing
orifice using the 0-8” W.C. manometer.
5. This reading should remain constant at 3.8”
to 4.0” W.C. throughout the operating range.
6. If the pressure drop is not within this range,
remove the cap from the air pressure
regulator.
7. Using a flat blade screwdriver adjust the
regulator until 3.8” to 4.0” W.C. is obtained.
Clockwise will increase the reading and
counterclockwise will decrease the reading.
8. It adjustments are made to this regulator, it
will be necessary to recheck oxygen
readings at 16%, 30%, and 100% firing
rates.
NOTE:
After an adjustment is made to the air regulator,
the cap must be replaced and securely tightened
to obtain an accurate reading
For propane units it will be necessary to install
an additional 8” W.C. This manometer will be
used to measure the pressure drop across the
air/propane mixing orifice. After performing the
setup procedures in paragraphs 4,2.2 through
4.2.4, install the 8” W.C. manometer as
described in steps 1, 2 and 3 which follow.
1. Refer to Fig. 4.5 and remove the 1/8” NPT
plug from the gas inlet pipe ahead of the
burner. Install a 1/8” NPT barbed fitting.
2. Remove the 1/2” NPT plug from the tee
located after the air pressure regulator and
install a 1/2” barbed fitting (see Fig. 4.5).
3. Attach the 8” W.C. manometer to the barbed
fittings installed in steps 1, and 2.
Figure 4.5
Propane Air Differential Pressure Taps
4-5
INITIAL START-UP
4.5 UNIT REASSEMBLY
Once combustion calibration is set properly, the
unit can be reassembled for permanent
operation as follows:
1. Set the ON/OFF switch to the OFF position.
Disconnect the AC power supply from the
unit.
2. The two over-temperature limit switches are
located at the top of the shell (see Fig. 4.6).
Do not attempt to adjust the upper switch. It
has been factory preset. Adjust the lower
switch between 20°F to 40°F higher than the
maximum header temperature the unit may
see.
3. Replace the shell cap and wing nut.
2. Shut off the gas supply to the unit.
3. Remove any regulator adjustment tools by
first pulling up the screwdriver blade to
disengage it from the regulator adjusting
screw, and then turning the tool out of the
top of the regulator.
4. Apply a drop of silicone adhesive to the
regulator adjusting screw to lock its setting.
5. Remove the gasket from the tool and place it
back onto the regulator cap.
6. Reinstall the cap and gasket back on the
regulator. Tighten the cap using a screwdriver or wrench.
7. Remove all of the manometers and barbed
fittings and reinstall the pipe plugs using a
suitable thread compound.
8. Remove the combustion analyzer probe
from the vent hole. Seal the probe hole and
replace the vent connection cover.
9. Replace the unit’s panels and hood.
4.6 OVER TEMPERATURE LIMIT
SWITCH ADJUSTMENTS
There are two Over-Temperature Limit switches
that turn off the unit when the outlet water
temperature becomes too hot. The lower overtemperature limit switch is adjustable and should
0
o
be adjusted 20 to 40 F above the operating
header temperature. The upper over-temperature limit switch is a manual reset device and is
not adjustable. It will shut the unit off if the water
temperature reaches 240°F. DO NOT attempt to
adjust its setpoint.
To adjust the lower over temperature switch limit
switch:
1. Remove the wing nut from the top center of
the shell cap. Lift the cap off the shell.
4-6
Figure 4.6
Over Temperature Limit Switch Location
MODE OF OPERATION
SECTION 5 - MODE OF OPERATION
5.1 INTRODUCTION
The following paragraphs provide detailed
descriptions of the six different modes of
operation for the KC1000 Boiler. Each unit is
shipped from the factory tested and configured
for the ordered mode of operation. All temperature related parameters are at factory defaults
and work well in most applications. However, it
may be necessary to change certain parameters
to customize the unit to the system. A complete
listing and descriptions of the temperature
related parameters are included in Appendix A.
Factory defaults are listed in Appendix E. After
reading this section, parameters can be customized to suit the needs of the specific application.
5.2 INDOOR/OUTDOOR RESET MODE
This mode of operation is based on outside air
temperatures. As the outside air temperature
decreases, the supply header temperature will
increase and vice versa. For this mode, it is
necessary to install an outside air sensor as well
as select a building reference temperature and a
reset ratio.
5.2.1 RESET RATIO
Reset ratio is an adjustable number from 0.1 to
9.9. Once adjusted, the supply header temperature will increase by that number for each degree
that the outside air temperature decreases. For
instance, if a reset ratio of 1.6 is used, for each
degree that outside air temperature decreases
the supply header temperature will increase by
1.6 degrees.
5.2.2. BUILDING REFERENCE
TEMPERATURE
This is a temperature from 40°F to 240°F. Once
selected, it is the temperature that the system
references to begin increasing its temperature.
For instance, if a reset ratio of 1.6 is used and
we select a building reference temperature of
70°F, then at an outside temperature of 69°F,
the supply header temperature will increase by
1.6° to 71.6°F.
5.2.3 OUTDOOR AIR TEMPERATURE
SENSOR INSTALLATION
ment by the elements. If a cover or shield is
used, it must allow free air circulation. The
sensor may be mounted up to 200 feet from the
unit. Sensor connections are made inside the
Input/Output (I/O) Box on the left side of the
KC1000 Boiler. Connections are made at the
terminals labeled OUTDOOR SENSOR IN and
SENSOR COMMON inside the I/O Box using
shielded 18 to 22 AWG wire. A wiring diagram is
provided on the cover of the I/O Box. Refer to
Section 2, paragraph 2.6.2 for additional wiring
information.
5.2.4 INDOOR/OUTDOOR STARTUP
1. Refer to the indoor/outdoor reset ratio charts
in Appendix D.
2. Choose the chart corresponding to the
desired building reference temperature.
3. Go down the left column of the chart to the
coldest design outdoor air temperature
expected in your area.
NOTE:
A design engineer typically provides design
outdoor air temperature and supply header
temperature data
4. Once the design outdoor air temperature is
chosen, go across the chart to the desired
supply header temperature for the design
temperature chosen in step 3.
5. Next, go up that column to the Reset Ratio
row to find the corresponding reset ratio.
6. Access the Configuration Menu and scroll
through it until the display shows Bldg Ref
Temp (Building Reference Temperature).
7. Press the CHANGE key.
begin to flash.
The display will
8. Use the ▲ and ▼ arrow keys to select the
desired building reference temperature.
9. Press ENTER to save any changes.
10. Next, scroll through the Configuration Menu
until the display shows Reset Ratio.
The outdoor air temperature sensor must be
mounted on the North side of the building in an
area where the average outside air temperature
is expected. The sensor must be shielded from
the sun's direct rays, as well as direct impinge5-1
MODE OF OPERATION
11. Press the CHANGE key.
begin to flash.
The display will
12. Use the ▲ and ▼ arrow keys to select the
reset ratio determined in step 5.
13. Press ENTER to save the change.
Refer to paragraph 3.3 for detailed instructions
on menu changing.
5.3 CONSTANT SETPOINT MODE
The Constant Setpoint mode is used when a
fixed header temperature is desired. Common
uses of this mode of operation include water
source heat pump loops, and indirect heat
exchangers for potable hot water systems or
processes.
There are no external sensors necessary to
operate in this mode. While it is necessary to set
the desired setpoint temperature, it is not
necessary to change any other temperaturerelated functions. The unit is factory preset with
settings that work well in most applications.
Prior to changing any temperature-related
parameters, other than the setpoint, it is
suggested that an AERCO representative be
contacted. For a complete listing of factory
defaults and a description of temperature related
functions, see Appendices A and E.
5.3.1 SETTING THE SETPOINT
The setpoint temperature of the unit is adjustable
from 40°F to 240°F. To set the unit for operation
in the Constant Setpoint Mode, the following
menu settings must be made in the Configuration Menu:
MENU OPTION
Boiler Mode
Internal Setpt
SETTING
Constant Setpoint
Select desired setpoint
using ▲ and ▼ arrow
keys (40°F to 240°F)
Refer to paragraph 3.3 for detailed instructions
on changing menu options.
5-2
5.4 REMOTE SETPOINT MODES
The unit’s setpoint can be remotely controlled by
an Energy Management System (EMS) or
Building Automation System (BAS). The Remote
Setpoint can be driven by a current or voltage
signal within the following ranges:
4-20 mA/1-5 Vdc
0-20 mA/0-5 Vdc
The factory default setting for the Remote
Setpoint mode is 4 - 20 mA/1 - 5 Vdc. With this
setting, a 4 to 20 mA/1 to 5 Vdc signal, sent by
an EMS or BAS, is used to change the unit's
setpoint. The 4 mA/1V signal is equal to a 40°F
setpoint while a 20 mA /5V signal is equal to a
240°F setpoint. When a 0 to 20 mA/0 to 5 Vdc
signal is used, 0 mA is equal to a 40°F setpoint.
In addition to the current and voltage signals
described above, the Remote Setpoint mode can
also driven by a RS485 Modbus Network signal
from an EMS or BAS.
The Remote Setpoint modes of operation can be
used to drive single as well as multiple units.
NOTE:
If a voltage, rather than current signal is used to
control the remote setpoint, a DIP switch
adjustment must be made on the PMC Board in
the Control Box. Contact your local AERCO
representative for details.
In order to enable the Remote Setpoint Mode,
the following menu setting must be made in the
Configuration Menu:
MENU OPTION
SETTING
Boiler Mode
Remote Setpoint
Remote Signal
4-20mA/1-5V,
0-20mA/0-5V, or
Network
Refer to paragraph 3.3 for detailed instructions
on changing menu options.
MODE OF OPERATION
If the Network setting is selected for RS485
Modbus operation, a valid Comm Address must
be entered in the Setup Menu. Refer to Modbus
Communication Manual GF-114 for additional
information.
While it is possible to change the settings of
temperature related functions, the unit is factory
preset with settings that work well in most
applications. It is suggested that an AERCO
representative be contacted, prior to changing
any temperature related function settings. For
descriptions of temperature-related functions
and their factory defaults, refer to Appendices A
and E.
5.4.1 REMOTE SETPOINT FIELD WIRING
The only wiring connections necessary for the
Remote Setpoint mode are connection of the
remote signal leads from the source to the unit’s
I/O Box. The I/O Box is located on the front
panel of the Benchmark Boiler. For either a 420mA/0-5V or a 0-20mA/0-5V setting, the
connections are made at the ANALOG IN
terminals in the I/O Box. For a Network setting,
the connections are made at the RS-485 COMM
terminals in the I/O Box. The signal must be
floating, (ungrounded) at the I/O Box and the
wire used must be a two wire shielded pair from
18 to 22 AWG. Polarity must be observed. The
source end of the shield must be connected at
the source. When driving multiple units, each
unit’s wiring must conform to the above.
5.4.2 REMOTE SETPOINT STARTUP
Since this mode of operation is factory preset
and the setpoint is being externally controlled, no
startup instructions are necessary. In this mode,
the REMOTE LED will light when the external
signal is present.
To operate the unit in the Manual mode, press
the AUTO/MAN switch. The REMOTE LED will
go off and the MANUAL LED will light.
To change back to the Remote Setpoint mode,
simply press the AUTO/MAN switch. The
REMOTE LED will again light and the MANUAL
LED will go off.
5.5 DIRECT DRIVE MODES
The unit’s fire rate can be changed by a remote
signal which is typically sent from an Energy
Management System (EMS) or from a Building
Automation System (BAS). The Direct Drive
mode can be driven by a current or voltage
signal within the following ranges:
4-20 mA/1-5 Vdc
0-20 mA/0-5 Vdc
The factory default setting for the Direct Drive
mode is 4-20 mA/1-5 Vdc. With this setting, a 4
to 20 mA signal, sent by an EMS or BAS is used
to change the unit’s fire rate from 0% to 100%. A
4 mA/1V signal is equal to a 0% fire rate, while a
20 mA /5V signal is equal to a 100% fire rate.
When a 0-20 mA/0-5 Vdc signal is used, zero is
equal to a 0% fire rate.
In addition to the current and voltage signals
described above, the Direct Drive mode can also
driven by a RS485 Modbus Network signal from
an EMS or BAS.
When in a Direct Drive mode, the unit is a slave
to the EMS or BAS and does not have a role in
temperature control. Direct Drive can be used to
drive single, or multiple units.
NOTE:
If a voltage, rather than current signal is used to
control the fire rate, a DIP switch adjustment
must be made on the PMC Board in the Control
Box. Contact your local AERCO representative
for details.
To enable the Direct Drive Mode, the following
menu setting must be made in the Configuration
Menu:
MENU OPTION
SETTING
Boiler Mode
Direct Drive
Remote Signal
4-20mA/1-5V,
0-20mA/0-5V, or
Network
Refer to paragraph 3.3 for instructions on
changing menu options.
5-3
MODE OF OPERATION
If the Network setting is selected for RS485
Modbus operation, a valid Comm Address must
be entered in the Setup Menu. Refer to Modbus
Communication Manual GF-114 for additional
information.
5.5.1 DIRECT DRIVE FIELD WIRING
The only wiring connections necessary for Direct
Drive mode are connection of the remote signal
leads from the source to the unit’s I/O Box. For
either a 4-20mA/0-5V or a 0-20mA/0-5V setting,
the connections are made at the ANALOG IN
terminals in the I/O Box. For a Network setting,
the connections are made at the RS-485 COMM
terminals in the I/O Box. The signal must be
floating, (ungrounded) at the I/O Box and the
wire used must be a two wire shielded pair from
18 to 22 AWG. Polarity must be observed. The
source end of the shield must be connected at
the source. When driving multiple units, each
unit’s wiring must conform to the above.
5.5.2 DIRECT DRIVE STARTUP
Since this mode of operation is factory preset
and the fire rate is being externally controlled, no
startup instructions are necessary. In this mode,
the REMOTE LED will light when the signal is
present.
To operate the unit in manual mode, press the
AUTO/MAN switch. The REMOTE LED will go
off and the MANUAL LED will light.
To change back to the Direct Drive mode, simply
press the AUTO/MAN switch. The REMOTE
LED will again light and the MANUAL LED will
go off.
5.6 BOILER MANAGEMENT SYSTEM
(BMS) MODE
NOTE
BMS Model 168 can utilize either pulse
width modulation (PWM) or RS485
Modbus signaling to the Boiler. BMS II
Model 5R5-384 can utilize only RS485
signaling to the Boiler.
The BMS mode of operation is used in
conjunction with an AERCO Boiler Management
System. The BMS mode is used when it is
desired to operate multiple units in the most
efficient manner possible. The BMS can control
up to 40 boilers; 8 via pulse width modulation
(PWM) and up to 32 via Modbus (RS485)
network communication. For BMS programming
5-4
and operation, see GF-108M (BMS Model 168)
and GF-124 (BMS II Model 5R5-384) BMS
Operations Guides. For operation via an RS485
Modbus
network,
refer
to
Modbus
Communication Manual GF-114.
To enable the BMS Mode, the following menu
settings must be made in the Configuration
Menu:
MENU OPTION
SETTING
Boiler Mode
Direct Drive
Remote Signal
BMS (PWM Input)
or
Network (RS485)
Refer to paragraph 3.3 for instructions on
changing menu options.
5.6.1 BMS EXTERNAL FIELD WIRING
Wiring connections for BMS control using PWM
signaling are made between connector JP2 on
the BMS panel (boilers 1 through 8), and the
B.M.S. (PWM) IN terminals in the I/O Box on the
front of the Benchmark Boilers. Refer to the
wiring diagram provided on the cover of the I/O
Box.
Wiring connections for RS485 Modbus control
are made between connector JP11 on the BMS
(boilers 9 through 40) and the RS485 COMM
terminals in the I/O Box on the front of the unit.
Wire the units using shielded twisted pair wire
between 18 and 22 AWG. Observe the proper
polarity for the B.M.S. (PWM) IN and/or RS485
COMM wiring connections. Shields should be
terminated only at the BMS and the boiler end
must be left floating. Each unit’s wiring must
conform to the above.
5.6.2 BMS SETUP AND STARTUP
This mode of operation is factory preset and the
AERCO BMS controls the firing rate. There are
no setup instructions for each individual unit.
To operate the unit in manual mode, press the
AUTO/MAN switch. The REMOTE LED will go
off and the MANUAL LED will light
To change back to the BMS mode, simply press
the AUTO/MAN switch. The REMOTE LED will
again light and the MANUAL LED will go off.
MODE OF OPERATION
5.7 COMBINATION CONTROL SYSTEM
(CCS)
NOTE
Only BMS Model 168 can be utilized for
the Combination Mode, not the BMS II
(Model 5R5-384).
A Combination Control System (CCS) is one that
uses multiple boilers to cover both space-heating
and domestic hot water needs. An AERCO
Boiler Management System (BMS) Model 168
and a Combination Control Panel (CCP) are
necessary to configure this system. Typically, an
adequate number of boilers are installed to cover
the space-heating load on the design day,
however one or more units are used for the
domestic hot water load.
The theory behind this type of system is that the
maximum space-heating load and the maximum
domestic hot water load do not occur simultaneously. Therefore, boilers used for the
domestic hot water are capable of switching
between constant setpoint and BMS modes of
operation. These boilers are the combination
units and are referred to as the combo boilers.
The combo boilers heat water to a constant
setpoint temperature. That water is then
circulated through a heat exchanger in a
domestic hot water storage tank.
When the space-heating load is such that all the
space-heating boilers are at 100% firing rate, the
BMS will then ask the Combination Control
Panel for the domestic boilers to become spaceheating boilers. Provided the domestic hot water
load is satisfied, the combo (hot water) boilers
will then become space-heating boilers. If the
domestic hot water load is not satisfied, the
combo boiler(s) remain on the domestic hot
water load. If the combo boilers switch over to
space heating, but there is a call for domestic
hot water, the CCP switches the combo units
back to the domestic load.
When the combo units are satisfying the
domestic load they are in constant setpoint
mode of operation. When the combo units switch
over to space heating, their mode of operation
changes to the BMS mode. For more information
concerning the operation of the Combination
Control Panel see the AERCO CCP-1 literature.
5.7.1 COMBINATION CONTROL SYSTEM
FIELD WIRING
Wiring for this system is between the BMS
Model 168 panel, the CCP and the B.M.S.
(PWM) IN terminals in the I/O Box. Wire the
units using a shielded twisted pair of 18 to 22
AWG wire. When wiring multiple units, each
unit’s wiring must conform to the above. For a
complete CCP system-wiring diagram see the
AERCO CCP-1 literature.
5.7.2 COMBINATION CONTROL SYSTEM
SETUP AND STARTUP
Setup for the Combination Mode requires entries
to be made in the Configuration Menu for boiler
mode, remote signal type and setpoint. The setpoint is adjustable from 40°F to 240°F.
Enter the following settings in the Configuration
Menu:
MENU OPTION
SETTING
Boiler Mode
Combination
Remote Signal
BMS (PWM Input)
Internal Setpt
40°F to 240°F
Refer to paragraph 3.3 for instructions on changing menu options.
While it is possible to change other temperaturerelated functions for combination mode, thes
functions are preset to their factory default
values. These default settings work well in most
applications. It is suggested that AERCO be
contacted prior to changing settings other than
the unit’s setpoint. For a complete listing of
temperature related function defaults, see
Appendix E.
To set the unit to the manual mode, press the
AUTO/MAN switch. The MANUAL LED will
light.
To set the unit back to the auto mode, press the
AUTO/MAN switch. The MANUAL LED will go
off and the REMOTE LED will light.
When the boiler is switched to BMS mode, the
AERCO BMS controls the firing rate. There are
no setup requirements to the boiler(s) in this
mode.
5-5
SAFETY DEVICE TESTING
SECTION 6-SAFETY DEVICE TESTING PROCEDURES
6.1 TESTING OF SAFETY DEVICES
Periodic testing of all controls and safety devices
is required to insure that they are operating as
designed. Precautions must be taken while tests
are being performed to protect against bodily
injury and property damage.
6. Open the gas supply to the unit and press
the CLEAR button on the Control Box.
7. The unit should restart.
Systematic and thorough testing of the operating
and safety controls should be performed on a
scheduled basis, or whenever a control component has been serviced or replaced. All testing
must conform to local jurisdictions or codes such
as ASME CSD-1.
NOTE:
MANUAL and AUTO modes are required to
perform the following tests. For a complete
explanation of these modes, see Section 3.
NOTE:
It will be necessary to remove the sheet
metal covers and cap from the unit to
perform the following tests.
WARNING!
ELECTRICAL
VOLTAGES
IN
THIS
SYSTEM INCLUDE 120 AND 24 VOLTS
AC. POWER MUST BE REMOVED PRIOR
TO PERFORMING WIRE REMOVAL OR
OTHER TESTING PROCEDURES THAT
CAN RESULT IN ELECTRICAL SHOCK.
6.2 LOW GAS PRESSURE FAULT TEST
Figure 6.1
1/8” Pipe Plug Position for Manometer
Installation
NOTE:
After faulting the unit, the fault message will
be displayed and the fault indicator light will
flash until the CLEAR button is pressed.
1. Shut off the gas supply to the unit.
2. Install a 0-16” W.C. manometer in the gas
pipe assembly below the low gas pressure
switch. (See Fig. 6.1)
3. Open the gas supply to the unit and depress
the CLEAR button to clear any fault
messages..
4. Place the unit in Manual Mode and fire the
unit at a firing rate between 25% and 30%.
5. Slowly close the manual gas supply valve
while monitoring the gas pressure. The unit
should fault and shutdown on LOW GAS
PRESSURE when the manometer indicates
approximately 6.5” W.C.
6.3 HIGH GAS PRESSURE TEST
1. Start the unit in manual mode and fire
between 25% and 30%.
2. Remove either wire # 150 or wire #151 from
the high gas pressure switch. See Fig. 6.2.
3. The unit should shut down on a HIGH GAS
PRESSURE FAULT.
4. Reconnect the wire previously removed from
the high gas pressure switch and depress
the CLEAR button.
5. The unit should restart.
6-1
SAFETY DEVICE TESTING
low water cutoff. Press the CLEAR button to
reset the FAULT LED and clear the error
message.
11. Set the ON/OFF switch to the ON position.
The unit is now ready for operation.
6.5 WATER TEMPERATURE FAULT
TEST
1. In the normal operating mode, allow the unit
to stabilize at its setpoint.
2. Lower the adjustable temperature limit
switch setting to match the outlet water
temperature. (See Fig. 6.3).
Figure 6.2
High Gas Pressure Switch
6.4 LOW WATER LEVEL FAULT TEST
1. Set the ON/OFF switch in the OFF position.
2. Close shut-off valves in the supply and
return piping to the unit.
3. Open the drain valve on the unit.
4. Allow air flow into the unit by either opening
the relief valve or by removing the 1/4” plug
in the top of the unit.
5. The LOW WATER LEVEL message will be
displayed and the FAULT LED will flash after
the water level has gone below the level of
the probe.
6. Set the ON/OFF switch to ON. The READY
light should remain off and the unit should
not start. If the unit does start, shut the unit
off immediately and refer fault to qualified
service personnel.
7. Close the drain and pressure relief valve or
reinstall the plug in the top of the unit if
removed.
8. Open the water shut-off valve in the return
piping to the unit to fill the shell.
9. Open the water shut-off valve in the supply
piping to the unit.
10. After the shell is full, press the LOW
WATER LEVEL RESET button to reset the
6-2
Figure 6.3
Temperature Limit Switch Setting
3. Once the switch setting is approximately at
the actual water temperature, the unit should
shutdown. The FAULT LED should be
flashing and the message HIGH WATER
TEMP SWITCH OPEN should be displayed.
The unit should not start.
4. Reset the temperature limit switch setting to
its prior setting.
5. The unit should start once the adjustable
temperature limit switch setting is above the
actual outlet water temperature.
SAFETY DEVICE TESTING
6.6 INTERLOCK TESTS
6.7 FLAME FAULT TEST
The unit is equipped with two interlock circuits
called the Remote Interlock and Delayed Interlock. Terminal connections for these circuits are
located in the I/O Box and are labeled REMOTE
INTL’K IN and DELAYED INTL’K IN. These
circuits can shut down the unit in the event that
an interlock is opened. These interlocks are
shipped from the factory jumped (closed).
However, each of these interlocks may be
utilized in the field as a remote stop and start, an
emergency cut-off, or to prove that a device such
as a pump gas booster, or louver is operational.
1. Place the ON/OFF switch in the OFF
position.
6.6.1 REMOTE INTERLOCK
1. Remove the cover from the I/O Box and
locate the REMOTE INTL’K IN terminals.
2. Start the unit in manual mode and fire at
25% to 30% firing rate.
3. If there is a jumper across the REMOTE
INTL’K IN terminals, remove one side of the
jumper. If the interlock is being controlled by
an external device, either open the interlock
via the external device or disconnect one of
the wires leading to the external device.
4. The unit should shut down and display
INTERLOCK OPEN.
5. Once the interlock connection is reconnected, the INTERLOCK OPEN message
should automatically clear and the unit
should resume running.
2. Place the unit in the Manual Mode and set
the firing rate between 25% and 30%.
3. Close the manual leak detection valve
located between the safety shut-off valve
and the differential regulator (see Fig. 6.4).
4. Start the unit.
5. The unit should shut down after reaching the
Ignition cycle and display FLAME LOSS
DURING IGN.
6. Open the valve previously closed in step 3
and depress the CLEAR button.
7. Restart the unit and allow it to prove flame.
8. Once flame is proven, close the manual leak
detection valve located between the safety
shut-off valve and the differential regulator.
9. The unit should shut down and display
FLAME LOSS DURING RUN.
10. Open the valve previously closed in step 8
and depress the CLEAR button. The unit
should restart and fire.
6.6.2 DELAYED INTERLOCK
1. Remove the cover from the I/O Box and
locate the DELAYED INTL’K IN terminals.
2. Start the unit in manual mode and fire at a
25% to 30% firing rate.
3. If there is a jumper across the DELAYED
INTL’K IN terminals, remove one side of the
jumper. If the interlock is connected to a
proving switch of an external device,
disconnect one of the wires leading to the
proving switch.
Figure 6.4
Manual Leak Detection Valve
4. The unit should shut down and display
DELAYED INTERLOCK OPEN. The FAULT
LED should be flashing.
5. Once the interlock connection is reconnected, depress the CLEAR button. The unit
should start.
6-3
SAFETY DEVICE TESTING
6.8 AIR FLOW FAULT TEST
1. Start the unit in manual mode and set the
fire rate between 25% and 30%.
2. Once the unit has proved flame, remove
either wire #154 or #155 from the blower
proof switch (see Fig. 6.5) located on the
air/fuel valve.
3. The unit should shut down and display
AIRFLOW FAULT DURING RUN.
4. Replace the wire previously removed from
the blower-proof switch and depress the
CLEAR button. The unit should restart.
6.9 SSOV PROOF OF CLOSURE
SWITCH
1. Set the unit’s ON/OFF switch to the OFF
position. Place the unit in manual mode and
set the fire rate between 25% and 30%.
2. Remove the Safety Shut-Off Valve (SSOV)
cover to access the terminal connections.
See Fig. 6.6. For units with IRI gas trains,
access the terminals of the downstream
SSOV (see drawing SD-A-584 in Appendix
F).
3. Remove either wire #149 or #148 from the
SSOV.
4. The unit should fault and display SSOV
SWITCH OPEN.
WARNING!
ELECTRICAL
VOLTAGES
IN
THIS
SYSTEM INCLUDE 120 AND 24 VOLTS
AC. POWER MUST BE REMOVED PRIOR
TO PERFORMING WIRE REMOVAL OR
OTHER TESTING PROCEDURES THAT
CAN RESULT IN ELECTRICAL SHOCK.
5. Replace the wire previously removed and
depress the CLEAR button.
6. Start the unit.
7. Remove the wire again when the unit
reaches the purge cycle.
8. The unit should shut down and display
SSOV FAULT DURING PURGE.
9. Replace the wire on the SSOV and depress
the CLEAR button. The unit should restart.
Figure 6.5
Blower Proof Switch Location and Wiring
Figure 6.6
SSOV Actuator Cover Screw Location
6-4
SAFETY DEVICE TESTING
6.10 PURGE SWITCH OPEN DURING
PURGE
6.11 IGNITION SWITCH OPEN DURING
IGNITION
1. Set the unit’s ON/OFF switch to the OFF
position. Place the unit in manual mode and
set the fire rate between 25% and 30%.
1. Set the unit’s ON/OFF switch to the OFF
position. Place the unit in manual mode and
set the fire rate between 25% and 30%.
2. Remove the air/fuel valve cover by rotating
the cover counterclockwise to unlock it and
then pulling it towards you. See Fig. 6.7.
2. Remove the air/fuel valve cover (Fig. 6.7) by
rotating the cover counterclockwise to
unlock it then pulling it towards you.
3. Remove one of the two wires from the purge
switch (Fig. 6.8) and start the unit.
3. Remove one of the two wires from the
ignition switch (Fig. 6.8) and start the unit.
4. The unit should begin to start, then shut
down and display PRG SWITCH OPEN
DURING PURGE.
4. The unit should begin to start then shut
down and display IGN SWITCH OPEN
DURING IGNITION.
5. Replace the wire on the purge switch and
depress the CLEAR button. The unit should
restart.
5. Replace the wire on the ignition switch and
depress the CLEAR button. The unit should
restart.
Figure 6.7
Air/Fuel Valve Cover Location
Figure 6.9
Air/Fuel Valve Purge and Ignition Switch
Locations
6-5
SAFETY DEVICE TESTING
6.12 SAFETY PRESSURE RELIEF VALVE
TEST
Test the safety Pressure Relief Valve in accordance with ASME Boiler and Pressure Vessel
Code, Section VI.
6-6
MAINTENANCE
SECTION 7 - MAINTENANCE
7.1 MAINTENANCE SCHEDULE
1.
The unit requires regular routine maintenance to
keep up efficiency and reliability. For best operation and life of the unit, the following routine
maintenance procedures should be carried out in
the time periods specified in Table 7-1.
Table 7-1. Maintenance Schedule
Sect
Item
7.2
Spark
Ignitor
Flame
Detector
Combustion
Adj.
Testing of
Safety
Devices
*Manifold &
Tubes
7.3
7.4
7.5
7.6
7.7
7.8
Water Side
Inspection
Condensate
Drain
24
Mos.
Labor
Time
6 Mos.
12 Mos.
Inspect
Replace
15
mins.
Inspect
Replace
15
mins.
Check
Check
1 hr.
Test
20
mins.
Inspect
Inspect
& Clean
Inspect
& clean
if
necessary
4 hrs.
Inspect
2 hr.
30
mins.
* Recommended only when unit will be run in an
extreme condensing mode for prolonged periods
of time.
WARNING!
TO AVOID PERSONAL INJURY, BEFORE
SERVICING:
(A) DISCONNECT THE AC SUPPLY BY
TURNING OFF THE SERVICE SWITCH
AND AC SUPPLY CIRCUIT BREAKER
(B) SHUT OFF THE GAS SUPPLY AT THE
MANUAL SHUT-OFF VALVE PROVIDED
WITH THE UNIT
(C) ALLOW THE UNIT TO COOL TO A
SAFE TEMPERATURE TO PREVENT
BURNING OR SCALDING
7.2 SPARK IGNITOR
The spark ignitor assembly is located in the body
of the burner (see Fig. 7.1). The ignitor may be
HOT. Care should be exercised. It is easier to
remove the ignitor from the unit after the unit has
cooled to room temperature.
To inspect/replace the Ignitor :
Set the ON/OFF switch on the control panel
to the OFF position and disconnect AC
power from the unit.
2. For access to the spark ignitor, remove the
unit’s right side panel. Access can also be
gained tby removing the rear panels and
condensate drainage system
3. Disconnect the ignitor cable from the ignitor
extension. Remove the silicone ignitor plug
from the burner shell by simultaneously
twisting and pulling downward.
4. Insert the ignitor removal tool into the burner
shell, where the ignitor plug was removed.
Screw the outer barrel of the tool into the
burner shell. Push the inner barrel up and fit
the hexagonal end of the tool over the
ignitor. Unscrew the ignitor from the burner
head and then the tool from the burner shell.
5. The ignitor is gapped at 1/8-inch. If there is a
substantial erosion of the spark gap or
ground electrode, the ignitor should be replaced. If carbon build-up is present, clean
the ignitor using fine emery cloth. Repeated
carbon build-up on the ignitor is an indication
that a check of the combustion settings is
required (see Section 4 for Combustion
Calibration).
6. Prior to reinstalling the ignitor, an anti-seize
compound must be applied to the ignitor
threads.
CAUTION!
The ignitor must be removed and installed using
the ignitor removal tool provided with the unit(s).
Damage to the burner due to using a socket for
removal and installation of the ignitor is not
covered under warranty.
7. Reinstall the ignitor assembly using the
ignitor removal tool. Do not over tighten the
ignitor. A slight snugging up is sufficient.
8. Reinstall the ignitor plug into the burner shell
by simultaneously twisting and pushing it into
the shell.
9. Reattach the ignitor cable to the extension
and verify that it “clicks” into place.
10. Replace the rear cover panels or right side
panel. Replace the condensate cup to drain
tubing.
7-1
MAINTENANCE
ensure that they are operating as designed.
Certain code requirements, such as ASME CSD1, require that these tests be performed on a
scheduled basis. Test schedules must conform
to local jurisdictions. The results of the tests
should be recorded in a log book. See Section 6Safety Device Testing Procedures.
7.6 MANIFOLD AND EXHAUST TUBES
Figure 7.1
Spark Ignitor and Flame Detector Location
7.3 FLAME DETECTOR
The flame detector assembly is located in the
body of the burner (see Fig. 7.1). The flame
detector may be HOT. Allow the unit to cool
sufficiently before removing the flame detector.
To inspect or replace the flame detector:
1. Set the ON/OFF switch on the control panel
to the OFF position and disconnect AC
power from the unit.
2. Remove the left side panel from the unit.
The presence of even trace amounts of
chlorides and/or sulfur, in the combustion air and
fuel sources, can lead to the formation of
deposits on the inside of the exchanger tubes,
the exhaust manifold, and/or the condensate
cup. The degree of deposition is influenced by
the extent of the condensing operation and the
chloride and sulfur levels that vary significantly
from application to application.
The following parts will be necessary for
reassembly after inspection:
GP-122537
GP-18900
GP-18899
GP-122551
*GP-161151
Exhaust Manifold to
Combustion Chamber
Gasket
Manifold to Tubesheet
Gasket
Burner Gasket
Burner Release Gasket
Combustion Chamber Liner
*Change only if damage occurs during the
inspection.
3. Disconnect the flame detector lead wire.
Unscrew the flame detector and remove it
from its guide tube. The detector is flexible
and may be bent to ease its removal.
To remove the manifold for inspection:
4. Inspect the detector thoroughly. If eroded,
the detector should be replaced. Otherwise
clean the detector with a fine emery cloth.
2. Remove the sheet metal covers from the
unit.
5. Reinstall the flame detector hand tight only.
6. Reconnect the flame detector lead wire.
7. Replace the rear cover panels or left side
panel and reconnect the rear covers to the
unit. Replace the condensate cup to drain
tubing.
7.4 COMBUSTION CALIBRATION
Combustion settings must be checked at the
intervals shown in Table 7-1 as part of the
maintenance requirements. Refer to Section 4
for the combustion calibration instructions.
7.5 SAFETY DEVICE TESTING
Systematic and thorough tests of the operating
and safety devices should be performed to
7-2
1. Disconnect AC power and turn off the gas
supply to the unit.
3. Disconnect the plastic tubing from the
condensate cup to drain and remove the
rear covers.
4. Remove the condensate cup from under the
unit and the condensate drainage tubing
from the manifold.
5.
Remove the flame detector and ignition
cable wires from the flame detector and
ignitor contactor. Remove the ignitor and
flame detector per paragraphs 7.2, and 7.3.
MAINTENANCE
6. Remove the grounding terminal from the
burner by loosening the upper screw and
sliding the connector from the grounding rod.
(See Fig. 7.2)
Figure 7.2
Grounding Terminal Location
7. Using a 7/16” socket or open end wrench
remove the four 1/4”-20 nuts on the gas inlet
pipe flange at the burner (See Fig. 7.3).
8. Using two 9/16” wrenches remove the 3/8"16 hex nuts and bolts on the gas inlet pipe
flange at the air/fuel valve (See Fig. 7.3).
Figure 7.4
Exhaust Sensor Connector Location
13. Disconnect the air/fuel valve wire harness,
the 12 pin connector, from the control panel.
14. Disconnect wires #24 and #17 from the
blower proof switch (See Fig. 7.5).
9. Loosen the hose clamp nearest the air/fuel
valve outlet on the air/fuel valve to burner
adapter (See Fig. 7.3).
10. Using a 1/2” socket wrench remove six 5/1618 hex nuts supporting the burner (See Fig.
7.3).
Figure 7.5
Blower Proof Switch Wire Locations
15. Loosen the hose clamp on the air/fuel valve
inlet and slide the clamp back towards the
blower (See Fig. 7.6).
Figure 7.3
Burner Disassembly Diagram
11. Lower the burner while sliding the air hose
off the air/fuel valve. Remove the burner
through the rear of the unit.
12. Disconnect the exhaust temperature sensor
by unscrewing it from the exhaust manifold
(See Fig. 7.4).
7-3
MAINTENANCE
remove the 3 bolts and fender washers
securing the insulation to the exhaust
manifold.
21. Loosen the three 1-1/16” nuts that hold the
manifold. Remove the two side nuts. DO
NOT REMOVE THE FRONT NUT (See Fig.
7.8).
22. Carefully pull the manifold down and back,
removing it through the back of the unit.
23. Inspect the manifold and exhaust tubes for
debris. Clean out any debris as necessary.
Figure 7.6
Air/Fuel Valve Inlet Hose Clamp
16. Using an 11/16” wrench, loosen the
compression fittings on the feedback tube
between the air/fuel valve and the differential
pressure regulator. Remove the feedback
tube (See Fig. 7.7).
17. Using two 9/16” wrenches remove the two
3/8-16 hex nuts and bolts holding the air/fuel
valve to the differential pressure regulator
(See Fig. 7.7).
24. Inspect the combustion chamber and the
combustion chamber liner. Replace the liner
if any signs of cracking or warpage are
evident.
NOTE:
The combustion chamber liner should be
installed prior to reinstalling the exhaust
manifold
18. Remove the air/fuel valve taking care not to
damage the flange “O”- ring.
19. Remove the flue venting from the exhaust
manifold.
Figure 7.8
Manifold Nut and Bolt Locations
25. Replace the gasket between the manifold
and the combustion chamber (P/N GP122537). The use of Permatex or a similar
gasket adhesive is recommended. Replace
the gasket between the manifold and
tubesheet (P/N GP-18900). Do not use any
gasket adhesive; this gasket has an
adhesive backing
Figure 7.7
Feedback Tube and Air/Fuel Valve to
Differential Regulator Bolts
20. To prevent damage to and for easier
handling of the exhaust manifold it will be
necessary to remove the exhaust manifold
insulation. Using a 7/16” wrench or socket,
7-4
26. Beginning with the manifold, reinstall all the
components in the reverse order that they
were removed.
MAINTENANCE
7.6.1 PROPANE UNITS
For propane units it will be necessary to remove
the air mix assembly in addition to the
components outlined in Section 7.6. Proceed as
follows:
7.7 HEAT EXCHANGER WATER SIDE
INSPECTION
Per CSD-1, the water side of the heat exchanger
requires an inspection. To inspect the heat exchanger, proceed as follows:
1. Follow steps 1 through 5 in paragraph 7.6.
1. Shut off AC power to the unit.
2. Using a wrench, loosen the two compression fittings holding the 1/4” feedback tube
between the burner and air regulator and
remove the feedback tube (See Fig. 7.9).
2. Close the supply and return valves to the
unit (Fig 7.10).
3. Using a 1-1/16” wrench or an adjustable
wrench loosen and remove the 12” flexible
gas hose.
4. Go back to paragraph 7.6 and continue at
Step # 6.
3. Open the drain valve and allow the unit to
fully drain. The 1/4 inch plug in the top of
the shell may be removed to aid in drainage
or the relief valve may be opened (Fig 7.10).
4. Remove the 2 ½ inch plug located in the
shell at the rear of the unit (Fig. 7.11).
5. Remove the relief valve, drain valve (Fig.
7.10) and any reducing bushings.
6. Perform the inspection and reassemble the
unit once the inspection is completed.
7. Open the supply and return valves and
reconnect AC power to the unit.
Figure 7.9
Propane Unit Component Location
NOTE:
Older propane units have a 1/8” feedback
tube and 1/8” OD tube compression fittings.
Figure 7.10
Heat Exchanger Supply and Return
Locations
7-5
MAINTENANCE
7.8 CONDENSATE DRAIN ASSEMBLY
KC Boilers contain a condensate drain cup
(Figure 2.6) which should be inspected and
cleaned annually to ensure proper operation.
To inspect and clean the assembly, proceed as
follows:
1. Remove the left side panel and left rear
cover to provide access to the condensate
drain components (see Figure 2.6).
2. Disconnect the drain hose attached to the
exhaust manifold.
3. Disconnect the plastic tubing from the
condensate cup drain tube to the drain
4. Remove the condensate cup from under the
unit. Thoroughly clean the cup and inspect
drain tube for blockage.
5. Check to ensure that the condensate drain
opening in the exhaust manifold is not
blocked.
6. Flush out the drain hose and plastic tubing.
Figure 7.11
Heat Exchanger 2 ½ Inch Inspection Plug
Location
7-6
7. After the above items have been cleaned
and inspected, reassemble the condensate
drain components by reversing the previous
steps.
TROUBLESHOOTING
Chapter 8- TROUBLESHOOTING GUIDE
8.1 INTRODUCTION
This troubleshooting guide is intended to aid
service/maintenance personnel in isolating the
cause of a fault in a KC1000 Boiler. The troubleshooting procedures contained herein are
presented in tabular form on the following pages.
These tables are comprised of three columns
labeled: Fault Indication, Probable Cause and
Corrective Action. The numbered items in the
Probable Cause and Corrective Action columns
correspond to each other.
For example,
Probable Cause No. 1 corresponds to Corrective
Action No. 1, etc.
When a fault occurs in the KC1000 Boiler,
proceed as follows to isolate and correct the
fault:
1. Observe the fault messages displayed in the
Control Box display.
2. Refer to the Fault Indication column in the
following troubleshooting tables and locate
the Fault that best describes the existing
conditions.
3. Proceed to the Probable Cause column and
start with the first item (1) listed for the Fault
Indication.
4. Perform the checks and procedures listed in
the Corrective Action column for the first
Probable Cause candidate.
5. Continue checking each additional Probable
Cause for the existing fault until the fault is
corrected.
6. If the fault cannot be corrected using the
information provided in the Troubleshooting
Tables, contact your local AERCO Representative.
8-1
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING
FAULT INDICATION
PROBABLE CAUSES
CORRECTIVE ACTION
AIRFLOW FAULT
DURING IGNITION
1. Blower stopped running due to thermal
or current overload
2. Blocked Blower inlet or inlet ductwork
1. Check combustion blower for signs of excessive heat or high
current drain that may trip thermal or current overload devices.
2. Inspect the inlet to the combustion blower including any ductwork
leading up to the combustion blower for signs of blockage.
3. Remove the airflow switch and inspect for signs of blockage,
clean or replace as necessary.
4. Measure the airflow switch for continuity with the combustion
blower running. If there is an erratic resistance reading or the
resistance reading is greater than zero ohms, replace the switch.
1. Start the unit. If the blower does not run check the blower solid
state relay for input and output voltage. If the relay is okay, check
the blower.
2. Start the unit. If the blower runs, check the airflow switch for
continuity. Replace the switch if there is no continuity.
3. Remove the air flow switch and inspect for signs of blockage,
clean or replace as necessary.
4. Inspect the inlet to the combustion blower including any ductwork
leading up to the combustion blower for signs of blockage.
5. Measure for 24 VAC during start sequence from each side of the
switch to ground. If 24VAC is not present refer to qualified
service personnel.
1. Check combustion blower for signs of excessive heat or high
current draw that may trip thermal or current overload devices.
2. Inspect the inlet to the combustion blower including any ductwork
leading up to the combustion blower for signs of blockage.
3. Remove the airflow switch and inspect for signs of blockage,
clean or replace as necessary.
4. Measure the airflow switch for continuity with the combustion
blower running. If there is an erratic resistance reading or the
resistance reading is greater than zero ohms, replace the switch.
5. Run unit to full fire. If the unit rumbles or runs rough, perform
combustion calibration.
3. Blocked airflow switch
4. Defective airflow switch
AIRFLOW FAULT
DURING PURGE
1. Blower not running or running too slow
2. Defective Air Flow Switch
3. Blocked Air flow Switch
4. Blocked Blower inlet or inlet ductwork.
5. No voltage to switch from control box.
AIRFLOW FAULT
DURING RUN
1. Blower stopped running due to thermal
or current overload
2. Blocked Blower inlet or inlet ductwork
3. Blocked airflow switch
4. Defective airflow switch
5. Combustion oscillations
8-2
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
DELAYED
INTERLOCK OPEN
DIRECT DRIVE
SIGNAL FAULT
FLAME LOSS
DURING IGN
PROBABLE CAUSES
1. Delayed Interlock Jumper not
installed or removed.
2. Device proving switch hooked to
interlocks is not closed
1. Direct drive signal is not present:
Not yet installed.
Wrong polarity.
Signal defective at source.
Broken or loose wiring.
2. Signal is not isolated (floating).
3. Control Box signal type selection
switches not set for correct signal
type (voltage or current).
1. Burner Ground Screw not installed
or loose.
2. Worn flame detector
3. No spark from Spark Plug
4. Defective Ignition Transformer
5. Defective Ignition/Stepper (IGST)
Board
6. Defective SSOV
7. Defective Differential Pressure
Regulator.
8. Carbon or other debris on Burner.
8-3
CORRECTIVE ACTION
1. Check for a jumper properly installed across the delayed
interlock terminals in the I/O box.
2. If there are 2 external wires on these terminals, check to see if
an end switch for a device (i.e. a pump, louver, etc.) is tied to
these interlocks. Ensure that the device and its end switch are
functional. (jumper may be temporarily installed to test interlock
1. Check I/O Box to ensure signal is hooked up.
Hook up if not installed.
If installed, check polarity.
Measure signal level.
Check continuity of wiring between source and boiler.
2. Check signal at source to ensure it is isolated.
3. Check DIP switch on PMC board to ensure it is set correctly for
the type of signal being sent. Check control signal type set in
Configuration Menu.
1. Inspect and install/retighten Burner Ground Screw.
2. Remove and inspect the flame detector for signs of wear.
Replace if necessary.
3. Close the internal gas valve in the boiler. Install and arc a spark
ignitor outside the unit.
4. If there is no spark, check for 120VAC at the primary side to the
ignition transformer during the ignition cycle.
5. If 120VAC is not present, the IGST Board in the Control Box
may be defective. Refer fault to qualified service personnel.
6. While externally arcing the spark ignitor, observe the
open/close indicator in the Safety Shut-Off Valve to ensure it is
opening. If the valve does not open, check for 120VAC at the
valves input terminals. If 120VAC is not present, the IGST
board in the Control Box may be defective. Refer fault to
qualified service personnel.
7. Check gas pressure using gauge or manometer into and out of
the Air/Fuel Valve to ensure gas is getting to burner.
8. Remove burner and inspect for any carbon or debris. Clean and
reinstall
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
FLAME LOSS
DURING RUN
PROBABLE CAUSES
1. Worn Flame Detector or cracked
ceramic.
1. Remove and inspect the Flame Detector for signs of wear or
cracked ceramic. Replace if necessary.
2. Defective Differential Regulator.
2. Check gas pressure readings using a gauge or manometer into
and out of the Air/Fuel Valve to ensure that the gas pressure
into and out of the valve is correct.
3. Check combustion calibration. Adjust as necessary.
4. Remove the burner and inspect for any carbon or debris. Clean
and reinstall.
5. Remove blockage in condensate drain.
1. Press CLEAR button and restart the unit. If the fault persists,
replace Ignition/Stepper (IGST) Board.
3. Poor combustion calibration.
4. Debris on burner.
HEAT DEMAND
FAILURE
HIGH EXHAUST
TEMPERATURE
HIGH GAS
PRESSURE
5. Blocked condensate drain.
1. The Heat Demand Relays on the
Ignition/Stepper board failed to
activate when commanded
2. Relay is activated when not in
Demand
1. Defective exhaust sensor.
2. Carboned heat exchanger due to
incorrect combustion calibration
1. Incorrect supply gas pressure.
2. Defective Supply Regulator or
Wrong Style Regulator
3. Defective High Gas Pressure Switch
8-4
CORRECTIVE ACTION
2. Defective relay. Replace IGST Board.
1. Measure the actual exhaust temperature and continuity of the
o
exhaust sensor. If the exhaust temperature is less than 475 F
and the exhaust sensor shows continuity replace the sensor.
o
2. If exhaust temperature is greater than 500 F, check
combustion calibration. Calibrate or repair as necessary.
1. If using a non-lock up style regulator for the gas supply,
measure static gas pressure downstream, it should be 14”WC
or less. Adjust as necessary.
2. If gas supply pressure cannot be lowered, a lock-up style
regulator may be required or the supply regulator may be
defective.
3. Remove the leads from the high gas pressure switch. Measure
continuity across the common and normally closed terminals
with the unit not firing. Replace the switch if it does not show
continuity.
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
HIGH WATER TEMP
SWITCH OPEN
PROBABLE CAUSES
1. Faulty Water temperature switch.
2. Incorrect PID settings.
3. Faulty shell temperature sensor.
4. Unit in Manual mode
5. Unit setpoint is greater than Over
Temperature Switch setpoint.
6. Boiler Management System PID or
other settings not correctly setup.
7. No interlock to boiler or BMS to
disable boiler(s) in event that system
pumps have failed.
8. System flow rate changes are
occurring faster than boilers can
respond.
HIGH WATER
TEMPERATURE
IGN BOARD
COMM FAULT
8-5
1. See HIGH WATER TEMPERATURE
SWITCH OPEN.
2. Temp HI Limit setting is too low.
1. Communication fault has occurred
between the PMC board and
Ignition/Stepper (IGST) board
CORRECTIVE ACTION
1. Test the temperature switch to insure it trips at its actual water
temperature setting.
2. Check PID settings against Menu Default settings in the
Appendix. If the settings have been changed, record the current
readings then reset them to the default values.
3. Using the resistance charts in the Appendix C, Measure the
resistance of Shell sensor and BTU sensor at a known water
temperature.
4. If unit is in Manual Mode switch to Auto Mode.
5. Check setpoint of unit and setpoint of Temperature Switch;
Ensure that the temperature switch is set higher than the unit’s
setpoint.
6. Check the BMS for changes to PID default values, correct as
necessary.
7. If system pump is controlled by Energy Management System
other than BMS or pumps are individually controlled by boiler,
check to see if there are flow switches interlocked to the BMS or
boiler.
8. If the system is a variable flow system, monitor system flow
changes to ensure that the rate of flow change is not faster than
what the boilers can respond to.
1. See HIGH WATER TEMPERATURE SWITCH OPEN.
2. Check Temp HI Limit setting.
1. Press CLEAR button and restart unit. If fault persists, contact
qualified Service Personnel.
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
IGN SWTCH CLOSED
DURING PURGE
PROBABLE CAUSES
1. Air/Fuel Valve not rotating
2. Defective or shorted switch
3. Switch wired incorrectly
4. Defective Power Supply Board or
fuse
5. Defective IGST Board
IGN SWTCH OPEN
DURING IGNITION
1. Air/Fuel Valve not rotating to ignition
position.
2. Defective ignition switch
3. Defective Power Supply Board or
fuse
4. Defective IGST Board
INTERLOCK
OPEN
1. Interlock jumper not installed or
removed
2. Energy Management System does
not have boiler enabled.
3. Device proving switch hooked to
interlocks is not closed.
8-6
CORRECTIVE ACTION
1. Start the unit. The Air/Fuel Valve should rotate to the purge
(open) position. If the valve does not rotate at all or does not
rotate fully open, check the Air/Fuel Valve calibration. If
calibration is okay, the problem may be in the Air-Fuel Valve or
the Control Box. Refer to qualified service personnel
2. . If the Air/Fuel Valve does rotate to purge, check the ignition
switch for continuity between the N.O. and COM terminals. If the
switch shows continuity when not in contact with the cam replace
the switch.
3. Check to ensure that the switch is wired correctly (correct wire
numbers on the normally open terminals). If the switch is wired
correctly, replace the switch
4. Check DS1 & DS2 LEDs on Power Supply Board. If they are not
steady ON, replace Power Supply Board.
5. Check “Heartbeat” LED DS1 and verify it is blinking ON & OFF
every second. If not, replace IGST Board
1. Start the unit. The Air/Fuel Valve should rotate to the purge
(open) position, then back to ignition position (towards closed)
during the ignition cycle. If the valve does not rotate back to the
ignition position, check the Air/Fuel Valve calibration. If
calibration is okay, the problem may be in the Air/Fuel Valve or
the Control Box. Refer fault to qualified service personnel.
2. If the Air/Fuel Valve does rotate to the ignition position, check the
ignition position switch for continuity between the N.O. and COM
terminals when in contact with the cam.
3. Check DS1 & DS2 LEDs on Power Supply Board. If they are not
steady ON, replace Power Supply Board.
4. Check “Heartbeat” LED DS1 and verify it is blinking ON & OFF
every second. If not, replace IGST Board.
1. Check for a jumper properly installed across the interlock
terminals in the I/O box
2. If there are two external wires on these terminals check any
Energy Management system to see if they have the units
disabled (a jumper may be temporarily installed to see if the
interlock circuit is functioning).
3. Check that proving switch for any device hooked to the interlock
circuit is closing and that the device is operational.
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
LINE VOLTAGE
OUT OF PHASE
LOW GAS
PRESSURE
PROBABLE CAUSES
1. Line and Neutral switched in AC
Power Box.
2. Incorrect power supply transformer
wiring.
1. Incorrect supply gas pressure.
2. Defective or incorrectly sized Gas
Supply Regulator.
3. Defective Low Pressure Gas Switch
LOW WATER
LEVEL
1. Insufficient water level in system
2. Defective water level circuitry.
3. Defective water level probe.
MODBUS COMM
FAULT
PRG SWTCH CLOSED
DURING IGNITION
1. Boiler not seeing information from
Modbus network
1. A/F Valve rotated open to purge and
did not rotate to ignition position
2. Defective or shorted switch.
3. Switch wired incorrectly.
4. Defective Power Supply Board or
fuse
8-7
CORRECTIVE ACTION
1. Check hot and neutral in AC Power Box to ensure they are not
reversed
2. Check transformer wiring, in AC Power Box, against the power
box transformer wiring diagram to ensure it is wired correctly
1. Measure gas pressure upstream of the supply gas regulator with
the unit firing ensure it is 14” WC or greater.
2. Measure gas pressure downstream of the supply regulator with
unit firing and adjust the gas supply regulator to increase the
outlet gas pressure; if outlet gas pressure cannot be increased,
check the sizing of the Supply regulator.
3. Measure gas pressure at the low gas pressure switch, if it is
greater than 5” WC, measure continuity across the switch and
replace if necessary.
1. Check system for sufficient water level.
2. Test water level circuitry using the Control Box front panel LOW
WATER TEST and RESET buttons. Replace water level
circuitry if it does not respond.
3. Check continuity of probe end to the shell, change probe if there
is no continuity.
1. Check network connections. If fault persists, contact qualified
Service Personnel.
1. Start the unit. The Air/Fuel Valve should rotate to the purge
(open) position, then back to ignition position (towards closed)
during the ignition cycle. If the valve does not rotate back to the
ignition position, check the Air/Fuel Valve calibration. If
calibration is okay, the problem may be in the Air/Fuel Valve or
the Control Box. Refer fault to qualified service personnel.
2. If the Air/Fuel Valve does rotate to the ignition position, check the
purge switch for continuity between the N.O. and COM terminals.
If the switch shows continuity when not in contact with the cam,
check to ensure that the switch is wired correctly (correct wire
numbers on the normally open terminals).
3. If the switch is wired correctly, replace the switch.
4. Check DS1 & DS2 LEDs on Power Supply Board. If they are not
steady ON, replace Power Supply Board.
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
PROBABLE CAUSES
continued
5. Defective IGST Board
PRG SWTCH OPEN
DURING PURGE
1. Defective purge switch.
2. No voltage present at switch.
3. Switch wired incorrectly.
4. Defective Power Supply Board or
fuse
5. Defective IGST Board
OUTDOOR TEMP
SENSOR FAULT
REMOTE SETPT
SIGNAL FAULT
RESIDUAL
FLAME
1. Loose or broken wiring.
2. Defective Sensor.
3. Incorrect Sensor.
1. Remote setpoint signal not present:
Not yet installed.
Wrong polarity.
Signal defective at source.
Broken or loose wiring.
2. Signal is not isolated (floating) if 4 to
20 mA.
3. Control Box signal type selection
switches not set for correct signal
type (voltage or current).
1. SSOV not fully closed.
CORRECTIVE ACTION
5. Check “Heartbeat” LED DS1 and verify it is blinking ON & OFF
every second. If not, replace IGST Board.
1. If the air-fuel valve does rotate, check the purge switch for
continuity when closing. Replace switch if continuity does not
exist.
2. Measure for 24 VAC from each side of the switch to ground. If
24VAC is not present, refer fault to qualified service personnel.
3. Check to ensure that the switch is wired correctly (correct wire
numbers on the normally open terminals).
4. Check DS1 & DS2 LEDs on Power Supply Board. If they are not
steady ON, replace Power Supply Board.
5. Check “Heartbeat” LED DS1 and verify it is blinking ON & OFF
every second. If not, replace IGST Board.
1. Inspect Outdoor Temperature sensor for loose or broken wiring.
2. Check resistance of sensor to determine if it is within
specification.
3. Ensure that the correct sensor is installed.
1. Check I/O Box to ensure signal is hooked up.
Hook up if not installed.
If installed, check polarity.
Measure signal level.
Check continuity of wiring between source and boiler.
2. Check signal at source to ensure it is isolated.
3. Check DIP switch on PMC board to ensure it is set correctly for
the type of signal being sent. Check control signal type set in
Configuration Menu.
1. Check open/close indicator window of Safety Shut-Off Valve
(SSOV) and ensure that the SSOV is fully closed. If not fully
closed, replace the valve and or actuator.
Close gas shut-off valve downstream of SSOV. Install a
manometer or gauge in a gas test port between the SSOV and
the gas shut off valve. If a gas pressure reading is observed
replace the SSOV valve and or actuator.
8-8
TROUBLESHOOTING
TABLE 8-1. BOILER TROUBLESHOOTING – Continued
FAULT INDICATION
(continued)
SSOV FAULT
DURING PURGE
SSOV FAULT
DURING RUN
SSOV RELAY
FAILURE
SSOV
SWITCH OPEN
PROBABLE CAUSES
2. Defective Flame Detecto
See SSOV SWITCH OPEN
2. Replace Flame Detector.
1. SSOV switch closed for 15 seconds
during run.
1. SSOV relay failed on board.
1. Replace or adjust microswitch in SSOV actuator. If fault
persists, replace actuator.
1. Press CLEAR button and restart unit. If fault persists, replace
Ignition/Stepper (IGST) Board.
1. Actuator not allowing for full closure
of gas valve
1. Observe operation of the Safety Shut-Off Valve (SSOV) through
indicator on the Valve actuator and ensure that the valve is fully
and not partially closing.
2. If the SSOV never closes, it may be powered continuously. Close
the gas supply and remove power from the unit. Refer fault to
qualified service personnel.
3. Remove the electrical cover from the SSOV and check switch
continuity. If the switch does not show continuity with the gas
valve closed, either adjust or replace the switch or actuator.
4. Ensure that the SSOV Proof of Closure switch is correctly wired.
1. Refer to GF-112 and perform Stepper Test (para. 6.3.5) to
ensure stepper motor rotates properly between the 0% (fully
closed) and 100% (fully open) positions. Verify that the FIRE
RATE bargraph and the dial on the Air/Fuel Valve track each
other to indicate proper operation. If operation is not correct,
perform the Stepper Feedback Calibration (GF-112, para. 6.2.1).
2. Check that the Air/Fuel Valve is connected to the Control Box.
3. .Inspect for loose connections between the Air/Fuel Valve motor
and the wiring harness.
4. Replace stepper motor.
2. SSOV powered when it should not be
3. Defective Switch or Actuator
STEPPER MOTOR
FAILURE
4. Incorrectly wired switch.
1. Air/Fuel Valve out of calibration.
2. Air/Fuel Valve unplugged.
3. Loose wiring connection to the
stepper motor.
4. Defective Air/Fuel Valve stepper
motor.
5. Defective Power Supply Board or
fuse
6. Defective IGST Board
8-9
CORRECTIVE ACTION
5. Check DS1 & DS2 LEDs on Power Supply Board. If they are not
steady ON, replace Power Supply Board.
6. Check “Heartbeat” LED DS1 and verify it is blinking ON & OFF
every second. If not, replace IGST Board.
APPENDIX A
BOILER MENU ITEM DESCRIPTIONS
MENU LEVEL & OPTION
DESCRIPTION
OPERATING MENU
Active Setpoint
This is the setpoint temperature to which the
control is operating when operating in the
Constant Setpoint, Remote Setpoint or Outdoor
Reset Mode. When in the Constant Setpoint
Mode, this value is equal to the Internal Setpoint
setting in the Configuration Menu. When in the
Remote Setpoint Mode, this value is the setpoint
equivalent to the remote analog signal supplied to
the unit. When in the Outdoor Reset Mode, this is
the derived value from the charts in Appendix D.
Aux Temp
For monitoring purposes only
Outdoor Temp
Displayed only if an outdoor sensor is installed and
enabled in the Configuration Menu.
Fire Rate In
Indicates desired input fire rate. This will normally
be the same as the fire rate shown on the bargraph (fire rate out) when the boiler is operating.
Flame Strength
Displays flame strength from 0 to 100%.
Run Cycles
Displays the total number of run cycles from 0 to
999,999.
Run Hours
Displays total run time of unit in hours from 0 to
999,999.
Fault Log
Displays information on the last 9 faults.
A-1
APPENDIX A
BOILER MENU ITEM DESCRIPTIONS - Continued
MENU LEVEL & OPTION
DESCRIPTION
SETUP MENU
Password
Allows password to be entered.
Once the valid password (159) is entered, options in
the Setup, Configuration and Tuning Menus can be
modified.
Language
English Only
Time
Displays time from 12:00am to 11:59pm.
Date
Displays dates from 01/01/00 to 12/31/99
Unit of Temp
Permits selection of temperature displays in
degrees Fahrenheit (°F) or degrees Celsius (°C).
Default is °F.
Comm Address
For RS-485 (MODBUS) communications (0 to 255).
Default address is 0. RS-232 should have its own
(programmable) password.
Baud Rate
Allows communications Baud Rate to be set (2400
to 19.2K). Default is 9600.
Software Version
Identifies the current software version of the control
box.
CONFIGURATION MENU
A-2
Internal Setpoint
Allows internal setpoint to be set . Default is 130°F.
Unit Type
Allows selection of Boiler or Water Heater. Default
is Boiler.
Unit Size
Sets unit size from 0.5 to 3.0 MBTUs. Default is 1.0
MBTU.
Boiler Mode
It allows selection of: Constant Setpoint, Remote
Setpoint, Direct Drive, Combination, or Outdoor
Reset Mode. Default is Constant Setpoint Mode.
Remote Signal
Used to set the type of external signal which will be
used when operating in the Remote Setpoint, Direct
Drive or Combination Mode. The factory default is
4-20 mA/1-5V.
Bldg Ref Temp
Allows the building reference temperature to be set
when operating a boiler in the Outdoor Reset Mode.
Default is 70°F.
APPENDIX A
BOILER MENU ITEM DESCRIPTIONS - Continued
MENU LEVEL & OPTION
DESCRIPTION
Reset Ratio
Permits setting of Reset Ratio when operating boiler
in the Outdoor Reset Mode. Reset Ratio is
adjustable from 0.1 to 9.9. Default is 1.2.
Outdoor Sensor
Allows outdoor sensor function to be enabled or
disabled. Default is Disabled.
System Start Tmp
If outdoor sensor is enabled in the Configuration
Menu, this menu item allows the system start
temperature to be set from 30°F to 100°F. Default
is 60°F.
Setpoint Lo Limit
Used to set the minimum allowable setpoint (40°F to
Setpoint Hi Limit). Default is 60°F
Setpoint Hi Limit
Used to set the maximum allowable setpoint
(Setpoint Lo Limit to 240°F). Default is 200°F.
Temp Hi Limit
Used to set the maximum allowable outlet
temperature (40°F to 240°F). Any temperature
above this setting will turn off the unit. The
temperature must then drop 5°F below this setting
to allow the unit to run. Default Temp Hi Limit is
215°F.
Max Fire Rate
Sets the maximum allowable fire rate for the unit
(40% to 100%). Default is 100%.
Pump Delay Timer
Specifies the amount of time (0 to 30 min.) to keep
the pump running after the unit turns off. Default is
zero.
Aux Start On Dly
Specifies the amount of time to wait (0 to 120 sec.)
between activating the Aux Relay (due to a demand)
and checking the pre-purge string to start the boiler.
Default is 0 sec.
Failsafe Mode
Allows the Failsafe mode to be set to either
Constant Setpoint or Shutdown. Default is
Shutdown.
mA Output
Can be set to allow this output to monitor Setpoint,
Outlet Temperature, Fire Rate Out or be set to OFF.
Default is OFF.
Lo Fire Timer
Specifies how long (2 to 120 sec.) to remain in the
low fire position after ignition, before going to the
desired output. Default is 2 sec.
A-3
APPENDIX A
BOILER MENU ITEM DESCRIPTIONS - Continued
MENU LEVEL & OPTION
DESCRIPTION
Setpt Limiting
Allows Setpoint Limiting to be enabled or disabled.
Default is disabled.
Setpt Limit Band
If Setpoint Limiting is enabled, this menu item allows
the Setpt Limit Band to be set from 0°F to 10°F.
Default is 5°F.
TUNING MENU
A-4
Prop Band
Generates a fire rate based on the error that exists
between the setpoint temperature and the actual
outlet temperature. If the actual error is less than
the proportional band setting (1 to 120°F), the fire
rate will be less than 100%. If the error is equal to
or greater than the proportional band setting, the fire
rate will be 100%. Default is 70°F.
Integral Gain
This sets the fraction of the output, due to setpoint
error, to add or subtract from the output each minute
to move towards the setpoint. Gain is adjustable
from 0.00 to 2.00. Default is 1.00.
Derivative Time
This value (0.0 to 2.00 min.) responds to the rate of
change of the setpoint error. This is the time that
this action advances the output. Default is 0.0 min.
Reset Defaults?
Allows Tuning Menu options to be reset to their
Factory Default values.
APPENDIX B
STARTUP, STATUS AND FAULT MESSAGES
STARTUP AND STATUS MESSAGES
MESSAGE
DISABLED
HH:MM pm MM/DD/YY
STANDBY
DEMAND DELAY
XX sec
PURGING
XX sec
IGNITION TRIAL
XX sec
FLAME PROVEN
WARMUP
XX sec
WAIT
DESCRIPTION
Displayed if ON/OFF switch is set to OFF. The display also
shows the time and date that the unit was disabled.
Displayed when ON/OFF switch is in the ON position, but
there is no demand for heat. The time and date are also
displayed.
Displayed if Demand Delay is active.
Displayed during the purge cycle during startup. The
duration of the purge cycle counts up in seconds.
Displayed during ignition trial of startup sequence. The
duration of cycle counts up in seconds.
Displayed after flame has been detected for a period of 2
seconds. Initially, the flame strength is shown in %. After 5
seconds has elapsed, the time and date are shown in place
of flame strength.
Displayed for 2 minutes during the initial warmup only.
Prompts the operator to wait.
B-1
APPENDIX B
FAULT MESSAGES
FAULT MESSAGE
HIGH WATER TEMP
SWITCH OPEN
LOW WATER
LEVEL
LOW GAS
PRESSURE
HIGH GAS
PRESSURE
INTERLOCK
OPEN
DELAYED
INTERLOCK OPEN
AIRFLOW FAULT
DURING PURGE
PRG SWTCH OPEN
DURING PURGE
IGN SWTCH OPEN
DURING IGNITION
IGN SWTCH CLOSED
DURING PURGE
PRG SWTCH CLOSED
DURING IGNITION
AIRFLOW FAULT
DURING IGN
AIRFLOW FAULT
DURING RUN
SSOV
SWITCH OPEN
SSOV FAULT
DURING PURGE
SSOV FAULT
DURING IGN
SSOV FAULT
DURING RUN
SSOV RELAY
FAILURE
FLAME LOSS
DURING IGN
FLAME LOSS
DURING RUN
HIGH EXHAUST
TEMPERATURE
LOSS OF POWER
B-2
FAULT DESCRIPTION
The High Water Temperature Limit Switch is open.
The Water Level Control board is indicating low water level.
The Low Gas Pressure Limit Switch is open.
The High Gas Pressure Limit Switch is open.
The Remote Interlock is open.
The Delayed Interlock is open.
The Blower Proof Switch opened during purge.
The Purge Position Limit switch on the air/fuel valve opened
during purge.
The Ignition Position Limit switch on the air/fuel valve opened
during ignition.
The Ignition Position Limit switch on the air/fuel valve closed
during purge.
The Purge Position Limit switch on the air/fuel valve closed
during ignition.
The Blower Proof Switch opened during ignition.
The Blower Proof Switch opened during run.
The SSOV switch opened during standby.
The SSOV switch opened during purge.
The SSOV switch closed or failed to open during ignition.
The SSOV switch closed for more than 15 seconds during
run.
A failure has been detected in one of the relays that control
the SSOV.
The Flame signal was not seen during ignition or lost within 5
seconds after ignition.
The Flame signal was lost during run.
The High Exhaust Temperature Limit Switch is closed.
A power loss had occurred. The time and date when power
was restored is displayed.
APPENDIX B
FAULT MESSAGES - Continued
FAULT MESSAGE
RESIDUAL
FLAME
HEAT DEMAND
FAILURE
IGN BOARD
COMM FAULT
DIRECT DRIVE
SIGNAL FAULT
REMOTE SETPT
SIGNAL FAULT
OUTDOOR TEMP
SENSOR FAULT
OUTLET TEMP
SENSOR FAULT
FFWD TEMP
SENSOR FAULT
HIGH WATER
TEMPERATURE
LINE VOLTAGE
OUT OF PHASE
STEPPER MOTOR
FAILURE
NETWORK COMM
FAULT
FAULT DESCRIPTION
The Flame signal was seen for more than 60 seconds during
standby.
The Heat Demand Relays on the Ignition board failed to
activate when commanded.
A communication fault has occurred between the PMC board
and Ignition board.
The direct drive signal is not present or is out of range.
The remote setpoint signal is not present or is out of range.
The temperature measured by the Outdoor Air Sensor is out
of range.
The temperature measured by the Outlet Sensor is out of
range.
The temperature measured by the FFWD Sensor is out of
range.
The temperature measured by the Outlet Sensor exceeded
the Temp Hi Limit setting.
The High AC voltage is out of phase from the low AC voltage.
The stepper motor failed to move the valve to the desired
position.
The RS-485 network information is not present or is
corrupted.
B-3
APPENDIX C
Temperature Sensor Resistance Chart
(Balco)
C-1
APPENDIX D
INDOOR/OUTDOOR RESET RATIO CHARTS
Header Temperature for a Building Reference Temperature of 50F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
-5F
-10F
-15F
-20F
50
53
56
59
62
65
68
71
74
77
80
83
86
89
92
50
54
58
62
66
70
74
78
82
86
90
94
98
102
106
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
50
56
62
68
74
80
86
92
98
104
110
116
122
128
134
50
57
64
71
78
85
92
99
106
113
120
127
134
141
148
50
58
66
74
82
90
98
106
114
122
130
138
146
154
162
50
59
68
77
86
95
104
113
122
131
140
149
158
167
176
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
50
60
72
83
94
105
116
127
138
149
160
171
182
193
204
50
62
74
86
98
110
122
134
146
158
170
182
194
206
218
Header Temperature for a Building Reference Temperatrure of 60F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
60F
55F
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
-5F
-10F
-15F
-20F
60
63
66
69
72
75
78
81
84
87
90
93
96
99
102
105
108
60
64
68
72
76
80
84
88
92
96
100
104
108
112
116
120
124
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
60
66
72
78
84
90
96
102
108
114
120
126
132
138
144
150
156
60
67
74
81
88
95
102
109
116
123
130
137
144
151
158
165
172
60
68
76
84
92
100
108
116
124
132
140
148
156
164
172
180
188
60
69
78
87
96
105
114
123
132
141
150
159
168
177
186
195
204
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
60
71
82
93
104
115
126
137
148
159
170
181
192
203
214
60
72
84
96
108
120
132
144
156
168
180
192
204
216
D-1
APPENDIX D
Header Temperature for a Building Reference Temperature of 65F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
65
60
55
50
45
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
65
68
71
74
77
80
83
86
89
92
95
98
101
104
107
110
113
116
65
69
73
77
81
85
89
93
97
101
105
109
113
117
121
125
129
133
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
65
71
77
83
89
95
101
107
113
119
125
131
137
143
149
155
161
167
65
72
79
86
93
100
107
114
121
128
135
142
149
156
163
170
177
201
65
73
81
89
97
105
113
121
129
137
145
153
161
169
177
185
193
218
65
74
83
92
101
110
119
128
137
146
155
164
173
182
191
200
209
65
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
65
76
87
98
109
120
131
142
153
164
175
186
197
208
219
65
77
89
101
113
125
137
149
161
173
185
197
209
Header Temperature for a Building Reference Temperature of 70F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
70F
65F
60F
55F
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
-5F
-10F
-15F
-20F
70
73
76
79
82
85
88
91
94
97
100
103
106
109
112
115
118
121
124
70
74
78
82
86
90
94
98
102
106
110
114
118
122
126
130
134
138
142
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
70
76
82
88
94
100
106
112
118
124
130
136
142
148
154
160
166
172
178
70
77
84
91
98
105
112
119
126
133
140
147
154
161
168
175
182
189
196
70
78
86
94
102
110
118
126
134
142
150
158
166
174
182
190
198
206
214
70
79
88
97
106
115
124
133
142
151
160
169
178
187
196
205
214
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
70
81
92
103
114
125
136
147
158
169
180
191
202
213
70
82
94
106
118
130
142
154
166
178
190
202
214
D-2
APPENDIX D
Header Temperature for a Building Reference Temperature of 75F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
75F
70F
65F
60F
55F
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
-5F
-10F
-15F
75
78
81
84
87
90
93
96
99
102
105
108
111
114
117
120
123
126
129
75
79
83
87
91
95
99
103
107
111
115
119
123
127
131
135
139
143
147
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
75
81
87
93
99
105
111
117
123
129
135
141
147
153
159
165
171
177
183
75
82
89
96
103
110
117
124
131
138
145
152
159
166
173
180
187
194
201
75
83
91
99
107
115
123
131
139
147
155
163
171
179
187
195
203
211
219
75
84
93
102
111
120
129
138
147
156
165
174
183
192
201
210
219
75
85
95
105
115
125
135
145
155
165
175
185
195
205
215
75
86
97
108
119
130
141
152
163
174
185
196
207
218
75
87
99
111
123
135
17
159
171
183
195
207
219
Header Temperature for a Building Reference Temperature of 80F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
80F
75F
70F
65F
60F
55F
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
-5F
-10F
80
83
86
89
92
95
98
101
104
107
110
113
116
119
122
125
128
131
134
80
84
88
92
96
100
104
108
112
116
120
124
128
132
136
140
144
148
152
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
80
86
92
98
104
110
116
122
128
134
140
146
152
158
164
170
176
182
188
80
87
94
101
108
115
122
129
136
143
150
157
164
171
178
185
192
199
206
80
88
96
104
112
120
128
136
144
152
160
168
176
184
192
200
208
216
80
89
98
107
116
125
134
143
152
161
170
174
188
197
206
215
80
90
100
110
120
130
140
150
160
170
180
190
200
210
80
91
102
113
124
135
146
157
168
179
190
201
212
80
92
104
116
128
140
152
164
176
188
200
212
D-3
APPENDIX D
Header Temperature for a Building Reference Temperature of 90F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
90F
85F
80F
75F
70F
65F
60F
55F
50F
45F
40F
35F
30F
25F
20F
15F
10F
5F
0F
90
93
96
99
102
105
108
111
114
117
120
123
126
129
132
135
138
141
144
90
94
98
102
106
110
114
118
122
126
130
134
138
142
146
150
154
158
162
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
165
170
175
180
90
96
102
108
114
120
126
132
138
144
150
156
162
168
174
180
186
192
198
90
97
104
111
118
125
132
139
146
153
160
167
174
181
188
195
202
209
216
90
98
106
114
122
130
138
146
154
162
170
178
186
194
202
210
218
90
99
108
117
126
135
144
153
162
171
180
189
198
207
216
90
100
110
120
130
140
150
160
170
180
190
200
210
90
101
112
123
134
145
156
167
178
189
200
90
102
114
126
138
150
162
174
186
198
210
D-4
APPENDIX E
BOILER DEFAULT SETTINGS
MENU & OPTION
FACTORY DEFAULT
Setup Menu
Password
0
Language
English
Unit of Temp
Comm Address
Baud Rate
Fahrenheit
0
9600
Configuration Menu
Internal Setpt
130°F
Unit Type
Boiler
Unit Size
1.0 MBTU
Boiler Mode
Remote Signal
(If Mode = Remote Setpoint, Direct Drive or
Combination)
Constant Setpoint
4 – 20 mA /1-5V
Bldg Ref Temp
(If Boiler Mode = Outdoor Reset)
70°F
Reset Ratio
(If Boiler Mode = Outdoor Reset)
1.2
Outdoor Sensor
System Start Tmp
(If Outdoor Sensor = Enabled)
Disabled
60°F
Setpt Lo Limit
60°F
Setpt Hi Limit
Temp Hi Limit
200°F
Max Fire Rate
215°F
100%
Pump Delay Timer
0 min
Aux Start On Dly
0 sec
Failsafe Mode
mA Output
Lo Fire Timer
Setpt Limit Band (If Setpt Limiting = Enabled)
Shutdown
Off
2 sec
5°F
Tuning Menu
Prop Band
70°F
Integral Gain
1.00
Derivative Time
0.0 min
E-1
APPENDIX F
F-1
APPENDIX F
F-2
APPENDIX F
F-3
APPENDIX F
F-4
APPENDIX F
F-5
APPENDIX F
F-6
APPENDIX G
G-1
APPENDIX G
G-2
APPENDIX H
H-1
ECO
2
3
4
6
REVISIONS
SEE SHEET ONE
237
7
236
5
235
8
238
240
241
242
243
244
245
9 10 11 12 13 14 15
239
THESE DRAWINGS AND/OR SPECIFICATIONS ARE THE PROPERTY OF AERCO INTERNATIONAL, INC. THEY ARE ISSUED IN STRICT CONFIDENCE AND
SHALL NOT BE REPRODUCED, COPIED, OR USED AS THE BASIS FOR MANUFACTURE OR SALE OF APPARATUS WITHOUT PERMISSION OF THE OWNER.
REV
J1
1
234
8
233
13
232
DATE
247
16 1
246
2
BY
4
251
5
252
6
253
8
7
254
CK'D
J3
B
ORIGINAL
DWG. SIZE
16-PIN CONNECTOR
CHECKED BY:
DRAWN BY:
226
MD
LS3
LS4
J2
1
2
DATE:
DATE:
061302
ALL DIMENSIONS ARE AFTER FINISH OR PLATING
4
220
LS2
3
221
6
MAT'L SPEC.:
TITLE
7
216
8 7 6
LS1
5
219
16 15 14 13 12 11 10 9
ALL DIMENSIONS ARE IN INCHES AND ALL TOLERANCES ARE
AS FOLLOWS UNLESS OTHERWISE SPECIFIED
XX ±.015 XXX ± .005 FRACTIONS 1/32± ANGLES ±1°
DIAMETERS ON A COMMON AXIS .005 TOTAL
PERPENDICULARITY/PARALLELISM/FLATNESS .003 TOTAL
THIRD ANGLE PROJECTION
INPUT/OUTPUT BOX
3
250
2
231
1
2
OUTDOOR AIR SENSOR IN
SENSOR COMMON IN
3
4
AUX SENSOR IN
5
+
6
CO SENSOR IN
7
FLOW SENSOR IN
+
9
+
10
-
OXYGEN SENSOR IN
11
SENSOR EXCIT. (12 VDC)
12
+
14
+
ANALOG IN
16
SHIELD
15
-
BMS (PWM) IN
-
1
2
+
ANALOG OUT
4
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
IN
1
3
-
+
GND
RS-485 IN
1
A
2
B
3
A
LONWORKS
B
OUT
1 2 3
4
1
CONTROL BOX CONNECTORS
3
C
N.C.
AUX
7
6
NOT USED
5
N.O.
2
FAULT
N.O.
RELAY
1
C
N.C.
RELAY
8
215
213
3
212
211
2 1
9 10 11 12
214
5 4
7
6
NOT USED
5
4
SHEET 2 OF 2
161613
DWG. NO.:
GAS FIRED BOILER SYSTEM
WIRING SCHEMATIC
(KC 1000)
159 PARIS AVE, NORTHVALE, N.J.
INTERNATIONAL INC.
IN
OUT
DELAYED INTLK
3
EXHAUST TEMP
2
IN
OUT
1
IN
OUT
REMOTE INTLK
H-2
24-PIN CONNECTOR
C
REV
APPENDIX H
APPENDIX I
KC1000 CONTROL PANEL EXPLODED VIEW
I-1
APPENDIX I
KC1000 CONTROL PANEL REAR VIEW
I-2
INTERNATIONAL, INC.
STANDARD WARRANTY:
Gas-Fired Hydronic Boiler
Model KC-1000GWB & PWB (Propane)
PRESSURE VESSEL: 10 YEARS NON-PRORATED
The shell shall carry a non-prorated 10 year guarantee from shipment against leakage due to
thermal shock, mechanical defects or workmanship. The shell will not be covered for waterside
corrosion.
HEAT EXCHANGER TUBES/COMBUSTION CHAMBER: 5 YEARS
The heat exchanger/combustion chamber shall carry a 5 year, non-prorated, warranty from
shipment against any condensate corrosion, thermal stress failure, mechanical defects or
workmanship. Operation of the boiler using contaminated air will void the warranty. The heat
exchangers combustion chamber shall not be warranted from failure due to scaling, liming,
corrosion, or erosion due to water or installation conditions. AERCO will repair, rebuild or
exchange, at its option the heat exchanger/combustion chamber for the warranted time period.
“C-MORE” CONTROL PANEL: 2 YEARS FROM SHIPMENT
AERCO labeled control panels are conditionally warranted against failure for (2) two years from
shipment.
OTHER COMPONENTS: 18 MONTHS FROM SHIPMENT
All other components, with the exception of the ignitor and flame detector, are conditionally
guaranteed against any failure for 18 months from shipment.
AERCO shall accept no responsibility if such item has been improperly installed, operated, or
maintained or if the buyer has permitted any unauthorized modification, adjustment, and/or
repairs to the item.
The warranty as set forth on the back page of the Operations & Maintenance Manual is in lieu
of and not in addition to any other express or implied warranties in any documents, or under
any law. No salesman or other representative of AERCO has any authority to expand
warranties beyond the face of the said warranty and purchaser shall not rely on any oral
statement except as stated in the said warranty. Any modifications to this warranty must be
done in writing by an Officer of AERCO. AERCO MAKES NO WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE OR ANY OTHER
EXPRESS OR IMPLIED WARRANTIES. AERCO disclaims all responsibility for any special,
incidental or consequential damages. any claim relating to the product must be filed with
AERCO not later than 14 days after the event giving rise to such claim. Any claims relating to
this product shall be limited to the sale price of the product at the time of sale. The sale of the
product is specifically conditioned upon acceptance of these terms.
03/01/05
W-1
(C102.0)
INTERNATIONAL, INC.
STANDARD WARRANTY:
Gas-Fired Hydronic Boiler
Model KC-1000GWB & PWB (Propane)
CONDITIONS OF WARRANTY
Should an AERCO gas-fired (natural gas or propane only) water heater or hydronic boiler fail
for any of the above reasons within the specified time period from the date of original
shipment(s), AERCO shall at its option modify, repair or exchange the defective item. AERCO
shall have the option of having the item returned, FOB its factory, or to make field replacements
at the point of installation. In no event shall AERCO be held liable for replacement labor
charges or for freight or handling charges.
AERCO shall accept no responsibility if such item has been improperly installed, operated, or
maintained or if the buyer has permitted any unauthorized modification, adjustment, and/or
repairs to the item. The use of replacement parts not manufactured or sold by AERCO will void
any warranty, express or limited.
In order to process a warranty claim a formal purchase order number is required prior to
shipment of any warranty item. In addition, the returned item must include a Returned Goods
Authorization (RGA) label, attached to the shipping carton, which identifies the item's return
address, register number and factory authorized RGA number.
Warranty coverage for all components and equipment mentioned in said warranty are not valid
unless the water heater or hydronic boiler is started up by a factory certified SST (Service,
Start-Up and Troubleshooting) Technician and an AERCO start-up sheet is completed.
This warranty coverage is only applicable within the United States and Canada. All other
geographical areas carry a standard warranty of 18 months from date of shipment or 12 months
from startup, whichever comes first.
03/01/05
W-2
(C102.1)
Instruction
No.
GF-124
AERCO INTERNATIONAL, Inc., Northvale, New Jersey, 07647 USA
Installation, Operation
& Maintenance Instructions
BMS II BOILER
MANAGEMENT
SYSTEM
JANUARY, 2009
Telephone Support
Direct to AERCO Technical Support
(8 to 5 pm EST, Monday through Friday):
1-800-526-0288
AERCO International, Inc.
159 Paris Avenue
Northvale, NJ 07647-0128
www.aerco,com
© AERCO International, Inc., 2008
The information contained in this installation,
operation and maintenance manual is subject to
change
without
notice
from
AERCO
International, Inc.
AERCO makes no warranty of any kind with
respect to this material, including but not limited
to implied warranties of merchantability and
fitness for a particular application. AERCO
International is not liable for errors appearing in
this manual. Nor for incidental or consequential
damages occurring in connection with the
furnishing, performance, or use of this material.
FOREWORD
Foreword
The Model 5R5-384 Boiler Management System II (BMS II) is the latest model of AERCO’s BMS line of
flexible boiler plant controllers.. The system can control a boiler plant comprised of AERCO Benchmark
Series, Modulex Series or KC1000 Boilers. The BMS II can stage and coordinate the operation of up to
32 AERCO Boilers with maximized efficiency. With individual boilers with turn-down ratios as high as
20:1, a 5-boiler plant can deliver a system turn-down ratio of 100:1 when the boilers are staged to operate
sequentially.
The BMS II is fully compatible with a wide array of Building Automation Systems (BAS) or Energy
Management Systems (EMS) utilizing Modbus Protocol. The BAS or EMS communicates with the BMS II
utilizing a RS232 interface. If the BAS or EMS does not contain a RS232 port, the BMS II can be ordered
with a RS485-to-RS232 Converter which can be easily installed within the BMS II’ wiring compartment.
PHRASES, ABBREVIATIONS & ACRONYMS
The phrases, abbreviations and acronyms used in this document are listed in the following table
Phrases, Abbreviations and Acronyms
Phrase, Abbreviation or
Acronym
A (Amp)
ADDR
ALRM
AUX
BAS
Baud Rate
BCM
BLR
BMS II
BND
Bias Resistors
BLDG (Bldg)
C-More Controller
(or Control Box)
CNTL
DIP
DYN
EMS
Ethernet
FDX
FLT
GND
HDR
HDX
Meaning
Ampere
Address
Alarm
Auxiliary
Building Automation System, often used interchangeably with EMS (see
below)
Symbol rate, or simply the number of distinct symbol changes (signaling
events) transmitted per second. It is not equal to bits per second, unless
each symbol is 1 bit long.
Boiler Control Module used with AERCO Modulex Series Boilers
Boiler
AERCO Boiler Management System, Second Generation
Band
A pair of resistors used to force the communication line to a definite logic
state so that noise is not picked up as invalid data during communication.
Building
A control system developed by AERCO and currently used in all Benchmark
and KC1000 Series product lines.
Control
Dual In-Line Package
Dynamic
Energy Management System; often used interchangeably with BAS
A computer networking technology for Local Area Networks (LANs)
Full-Duplex
Fault
Ground
Header
Half-Duplex
i
FOREWORD
Phrases, Abbreviations and Acronyms - Continued
Phrase, Abbreviation or
Acronym
Hex
Hz
INTLK
I/O
I/O Box
IP
ISO
LSB
LSD
MA (mA)
MAX (Max)
MIN (Min)
Modbus®
MSB
MSD
MS/TP
OFFS
OUTD
PTP
REF (Ref)
Response Time
RS232
(or EIA-232)
RS422
(or EIA-422)
RS485
(or EIA-485)
RTN
RTU
SEN
SETPT (Setpt)
SHLD (Shld)
SLTA
SYS
TEMP (Temp)
Terminating Resistor
VAC
VDC
VFD
ii
Meaning
Hexadecimal Number (0 - 9, A - F)
Hertz (Cycles Per Second)
Interlock
Input/Output
Input/Output (I/O) Box currently used on all Benchmark and KC Series
products
Internet Protocol
Isolated
Least Significant Byte
Least Significant Digit
Milliampere
Maximum
Minimum
A serial, half-duplex data transmission protocol developed by AEG Modicon
Most Significant Byte
Most Significant Digit
Master-Slave/Token-Passing (usually over RS485 networks)
Offset
Outdoor
Point-to-Point (usually over RS232 networks)
Reference
The maximum amount of time allowed to receive a response to a request
A standard for serial, full-duplex (FDX) transmission of data based on the
RS232 Standard
A standard for serial, full-duplex (FDX) transmission of data based on the
RS422 Standard
A standard for serial, half-duplex (HDX) transmission of data based on the
RS485 Standard
Return
Remote Terminal Unit
Sensor
Setpoint Temperature
Shield
Serial LonTalk Adapter
System
Temperature
A resistor placed at each end of a daisy-chain or multi-drop network in order
to prevent reflections that may cause invalid data in the communication
Volts, Alternating Current
Volts, Direct Current
Vacuum Fluorescent Display
CONTENTS
GF-124 – BMS II BOILER MANAGEMENT SYSTEM
Operating & Maintenance Instructions
TABLE OF CONTENTS
CHAPTER 1 - GENERAL INFORMATION ....................................................................................................... 1-1
1.1 SAFETY PRECAUTIONS & WARNINGS ................................................................................................... 1-1
1.2 INTRODUCTION ........................................................................................................................................... 1-1
1.3 BMS II GENERAL description....................................................................................................................... 1-1
1.4 BMS II FEATURES ........................................................................................................................................ 1-2
Simplified Installation and Set-Up .................................................................................................................... 1-2
User-Friendly Control System Interface............................................................................................................ 1-2
Retention of Menu Option Settings ................................................................................................................... 1-3
Application Flexibility....................................................................................................................................... 1-3
Sequential or Parallel Operation ........................................................................................................................ 1-3
Accuracy............................................................................................................................................................ 1-3
Bumpless Transfer ............................................................................................................................................. 1-3
Fault Alarm Surveillance ................................................................................................................................... 1-3
BMS II Programming Via RS232 Port. ............................................................................................................. 1-3
CHAPTER 2 - INSTALLATION.......................................................................................................................... 2-1
2.1 INTRODUCTION ........................................................................................................................................... 2-1
2.2 SITE SELECTION AND mounting ................................................................................................................ 2-1
Mounting the BMS ............................................................................................................................................ 2-1
2.3 GENERAL WIRING REQUIREMENTS ....................................................................................................... 2-2
2.4 POWER WIRING ........................................................................................................................................... 2-3
2.5 SENSOR INSTALLATION AND WIRING..................................................... ............................................. 2-5
Header Sensor.................................................................................................................................................... 2-5
Return Sensor .................................................................................................................................................... 2-5
Outdoor Air Sensor............................................................................................................................................ 2-6
2.6 RS485 (MODBUS) WIRING AT the BMS II................................................................................................. 2-8
BMS II Bias Switches........................................................................................................................................ 2-8
2.7 RS485 (MODBUS) WIRING AT the aerco boilers ........................................................................................ 2-9
RS485 Wiring for Benchmark Series and KC1000 Boilers............................................................................... 2-9
RS485 Wiring for Modulex Series Boilers...................................................................................................... 2-11
2.8 Sample RS485 (Modbus) Network Diagrams ............................................................................................... 2-12
2.9 RS232 Wiring at the BMS II ......................................................................................................................... 2-14
2.10 INTERLOCK WIRING............................................................................................................................... 2-15
Interlock 1 (INT 1) Wiring .............................................................................................................................. 2-15
Interlock 2 (INT 2) Wiring .............................................................................................................................. 2-15
2.11 SET BACK WIRING .................................................................................................................................. 2-15
2.12 RELAY WIRING ........................................................................................................................................ 2-15
System Start Relay........................................................................................................................................... 2-16
Fault Alarm Relay ........................................................................................................................................... 2-16
Auxiliary Relay................................................................................................................................................ 2-16
2.13 4 – 20 mA WIRING .................................................................................................................................... 2-16
CHAPTER 3 - OPERATION................................................................................................................................ 3-1
3.1 INTRODUCTION ........................................................................................................................................... 3-1
3.2 FRONT PANEL OPERATING CONTROLS AND DISPLAYS ................................................................... 3-1
3.3 BMS II MENU STRUCTURE ........................................................................................................................ 3-3
Menu Processing Procedure .............................................................................................................................. 3-3
3.4 operating menu ................................................................................................................................................ 3-5
HEADER TEMP and PERCENT OF LOAD .................................................................................................... 3-5
HEADER SETPOINT ....................................................................................................................................... 3-5
OUTSIDE AIR TEMP....................................................................................................................................... 3-5
I/O STATUS...................................................................................................................................................... 3-6
RETURN TEMP................................................................................................................................................ 3-6
iii
CONTENTS
TABLE OF CONTENTS (cont.)
3.5 SETUP MENU ................................................................................................................................................ 3-6
ENTER PASSWORD........................................................................................................................................ 3-6
Date and Time Menu Options............................................................................................................................ 3-6
3.6 RS232 MENU.................................................................................................................................................. 3-7
RS232 MODE.................................................................................................................................................... 3-7
RS232 BAUD RATE......................................................................................................................................... 3-7
MODBUS ADDRESS ....................................................................................................................................... 3-7
NETWORK TIMEOUT .................................................................................................................................... 3-7
MODBUS PASS THRU.................................................................................................................................... 3-7
3.7 RS485 MENU.................................................................................................................................................. 3-7
RS485 BAUD RATE......................................................................................................................................... 3-8
MIN SLAVE ADDR ......................................................................................................................................... 3-8
MAX SLAVE ADDR........................................................................................................................................ 3-8
NUMBER NETWK BLRS................................................................................................................................ 3-8
MODBUS CNTL TYPE.................................................................................................................................... 3-8
NETW BOILER XX ADDRESS= YYY (Where XX = 01 – 32; YYY = 001 – 127)....................................... 3-8
3.8 FIELD ADJUST MENU. ................................................................................................................................ 3-8
HEADER SET MODE ...................................................................................................................................... 3-8
HDR HIGH LIMIT............................................................................................................................................ 3-8
HDR LOW LIMIT............................................................................................................................................. 3-9
INTERNAL SETPT .......................................................................................................................................... 3-9
RESET RATIO.................................................................................................................................................. 3-9
BLDG REF TEMP ............................................................................................................................................ 3-9
REMOTE SIGNAL ........................................................................................................................................... 3-9
OFFSET ENABLE ............................................................................................................................................ 3-9
Offset Menu Options ......................................................................................................................................... 3-9
Setting Up An Offset Schedule........................................................................................................................ 3-10
Manual Offset .................................................................................................................................................. 3-10
3.9 CONFIGURATION MENU.......................................................................................................................... 3-10
BOILER OP MODE ........................................................................................................................................ 3-10
SYS INTLK CONFIG ..................................................................................................................................... 3-11
BLR START LEVEL ...................................................................................................................................... 3-11
BLR STOP LEVEL ......................................................................................................................................... 3-11
MAX POWER INPUT .................................................................................................................................... 3-11
FAIL SAFE MODE......................................................................................................................................... 3-11
3.10 TUNING MENU ......................................................................................................................................... 3-12
PROPORTIONAL BND ................................................................................................................................. 3-12
INTEGRAL GAIN .......................................................................................................................................... 3-12
DERIVATIVE GAIN ...................................................................................................................................... 3-13
HDR TEMP DEADBND................................................................................................................................. 3-13
3.11 RELAY MENU ........................................................................................................................................... 3-13
SYS START TEMP......................................................................................................................................... 3-13
SYS START OPTION..................................................................................................................................... 3-13
SYS START INTLK ....................................................................................................................................... 3-13
AUX RELAY OPEN....................................................................................................................................... 3-13
AUX RELAY CLOSE..................................................................................................................................... 3-13
FAULT ALRM RELAY.................................................................................................................................. 3-14
FAULT ALARM BLRS .................................................................................................................................. 3-14
FAULT ALRM CLEAR.................................................................................................................................. 3-14
3.12 CALIBRATION MENU ............................................................................................................................. 3-14
HDR SENS OFFSET....................................................................................................................................... 3-14
OUTD SENS OFFSET .................................................................................................................................... 3-14
4 - 20 MA OFFSET ......................................................................................................................................... 3-14
RETN SENS OFFSET..................................................................................................................................... 3-14
RAMP UP %/MIN........................................................................................................................................... 3-14
RAMP DOWN %/MIN ................................................................................................................................... 3-15
iv
CONTENTS
TABLE OF CONTENTS (cont.)
LOAD START PCT ........................................................................................................................................ 3-15
LOAD STOP PCT ........................................................................................................................................... 3-15
RESET DEFAULTS........................................................................................................................................ 3-15
3.13 BMS II QUICK-START GUIDE ................................................................................................................ 3-15
CONSTANT SETPT MODE (Default) ........................................................................................................... 3-16
REMOTE SETPT MODE ............................................................................................................................... 3-16
OUTDOOR RESET MODE............................................................................................................................ 3-17
CHAPTER 4 - PROGRAMMING BMS II OPERATING MODES..................................................................... 4-1
4.1 INTRODUCTION ........................................................................................................................................... 4-1
4.2 OUTDOOR RESET MODE............................................................................................................................ 4-1
Selecting Outdoor Reset Mode .......................................................................................................................... 4-1
Determining Reset Schedule.............................................................................................................................. 4-2
Entering Reset Ratio And Building Reference Temperature ............................................................................. 4-2
Selecting Boiler Operating Mode ...................................................................................................................... 4-2
Entering System Start Temperature ................................................................................................................... 4-3
4.3 REMOTE SETPOINT MODE ........................................................................................................................ 4-3
Selecting Remote Setpoint Mode ...................................................................................................................... 4-3
Entering Header High Limit And Low Limit Temperatures ............................................................................. 4-4
Selecting Remote Signal Type........................................................................................................................... 4-4
Selecting Boiler Operating Mode ...................................................................................................................... 4-5
4.4 CONSTANT SETPOINT MODE ................................................................................................................... 4-5
Selecting Constant Setpoint Mode..................................................................................................................... 4-5
Selecting Internal Setpoint Temperature ........................................................................................................... 4-6
Selecting Boiler Operating Mode ...................................................................................................................... 4-6
4.5 “TEMP AND LOAD” OPTION...................................................................................................................... 4-6
4.6 “START ENABLED” OPTION...................................................................................................................... 4-7
4.7 SYSTEM INITIALIZATION and polling....................................................................................................... 4-7
4.8 TESTING THE SYSTEM ............................................................................................................................... 4-7
CHAPTER 5 - TROUBLESHOOTING................................................................................................................ 5-1
5.1 FAULT MESSAGES & COMMON PROBLEMS ......................................................................................... 5-1
APPENDIX A - BMS MENUS
APPENDIX B - STATUS AND FAULT MESSAGES
APPENDIX C - METHODS FOR DETERMINING RESET SCHEDULE
APPENDIX D - NTC TEMPERATURE RESISTANCE CHART
APPENDIX E - BMS II WIRING DIAGRAM
APPENDIX F - BMS II PARTS AND ACCESSORIES
APPENDIX G - PROGRAMMING THE BMS II USING RS232 COMMUNICATION
APPENDIX H - BMS II MODBUS ADDRESS ASSIGNMENTS
APPENDIX I - BOILER START AND BOILER STOP LEVELS
A-1
B-1
C-1
D-1
E-1
F-1
G-1
H-1
I-1
v
GENERAL INFORMATION
CHAPTER 1 - GENERAL INFORMATION
1.1 SAFETY PRECAUTIONS & WARNINGS
The Warnings and Cautions appearing throughout this manual should be reviewed and thoroughly
understood prior to attempting to install, operate, troubleshoot or repair the BMS II.
1.2 INTRODUCTION
This manual provides installation, operation and troubleshooting instructions for the AERCO Boiler
Management System, Model 5R5-384. Since this Model is the second generation of AERCO’s Boiler
Management System (BMS) line, this Model is referred to as the BMS II throughout this document.
1.3 BMS II GENERAL DESCRIPTION
The BMS II (Figure 1-1) is a rugged, flexible controller designed to stage and coordinate the operation of
up to 32 AERCO Benchmark Series, Modulex Series or KC1000 Boilers while maximizing operational
efficiency. Under normal load conditions, the BMS II can precisely regulate the header temperature of the
boiler plant within ±2°F.
Boiler plant control is accomplished via a RS485 network utilizing Modbus protocol. For facilities that have
taken a building-wide approach to energy efficiency, the BMS II can be easily integrated with an Energy
Management System (EMS) or Building Automation System (BAS) utilizing Modbus protocol. Physical
connection to the remote EMS or BAS is accomplished via an RS232 interface. EMS/BAS integration will
also permit utilization of the pass-thru function incorporated in the BMS II. The pass-thru function permits
the remote system to monitor up to 35 operating parameters from each boiler in the plant.
The BMS II is housed in a NEMA 13 enclosure. A hinged clear-plastic cover over the unit’s panel controls
protects against incidental contact of control settings and provides a degree of protection against airborne
debris and the spraying or splashing of water. The physical dimensions, weight and electrical power
requirements for the BMS II are as follows:
Dimensions
9.50” W x 7.25” H x 4.00” D
Weight
3 lbs.
Power Requirements
85-to-265 VAC, Single-Phase, 50-60 Hz @ 1A
Each BMS II shipment includes a Header Sensor Kit, Part No. GM-122790 which is required for all modes
of operation. Other available options which can be ordered with your shipment include:
Outdoor Air Sensor Kit,
Part No. GM-122781
Required for Outdoor Reset Mode Operation
Return Sensor Kit,
Part No. 122790
(Same as Header Sensor Kit)
Used for external monitoring of boiler water return
temperature
RS485-to-RS232 Converter, Part
No 124943
For use with EMS or BAS equipment that do not include
a RS232 Port
1-1
GENERAL INFORMATION
Figure 1-1. Boiler Management System II (BMS)
1.4 BMS II FEATURES
The following paragraphs briefly describe some of the unique features incorporated in the BMS II.
Simplified Installation and Set-Up
The BMS II system operates on single-phase input power ranging from 85 to 265 VAC, 50-60 Hz.
Connections to the boiler plant are accomplished utilizing a 2-wire RS485 network connected in a daisychain configuration. When an EMS or BAS is used with the BMS II, connections are made via the RS232
port terminals. In the event that the EMS or BAS is not equipped with a RS232 port, the BMS II can be
ordered with a RS485 to RS232 Converter which can be easily installed within the wiring compartment of
the BMS II. With the exception of AC power, interlock and setback inputs and relay outputs, BMS II
connections are accomplished using twisted-shielded pair cable.
User-Friendly Control System Interface
The unit incorporates a menu-driven architecture which is comprised of 9 primary menus. The user
interface to these menus is accomplished via the BMS II control panel and a Vacuum Fluorescent Display
(VFD). The display is capable of displaying two lines with 16 characters per line. Virtually all of the control
panel keys are identical to the C-More Control System currently used on AERCO Benchmark Series and
KC1000 Boilers. This commonality will help simplify the time required for system setup of the BMS II.
1-2
GENERAL INFORMATION
Retention of Menu Option Settings
By using non-volatile memory, the BMS II retains program and menu settings during shut-down or when
input AC power is interrupted. Settings can be retained for more than 2 years.
Application Flexibility
Four different configuration options can be selected to match the needs of any closed-loop system. These
configurations are: Outdoor Reset, Constant Setpoint, Remote Setpoint via a 4-20 Ma input and Remote
Setpoint via Modbus.
Sequential or Parallel Operation
Boilers can be programmed for either sequential or parallel operation using the BMS II keypad controls. When set
for sequential operation, the boilers are brought on-line one at a time as needed. When set for parallel operation, the
boilers are all brought on-line together at the same firing rate.
Accuracy
Using PID (Proportional Integral Derivative) and Ramp-Up/Ramp-Down Modulation Control Algorithms,
the BMS II provides dynamic responses to all changes in boiler plant operation. Header temperatures, as
well as percentages of boiler input are precisely controlled with virtually no over-shoot or short-cycling of
boiler units. A header temperature accuracy of ±2°F is virtually assured during continuous plant operation.
Bumpless Transfer
When operated sequentially, The BMS II stages boilers on and off at selectable firing rate percentages.
The result is a seamless transition with undetectable room temperature changes. In addition, when in
sequential mode, the BMS II sequences boilers using a first-on, first-off basis, thereby equalizing the
accumulated run time of all boilers in the plant.
The BMS II also continuously monitors the number of Boilers that are available for operation. In the event
of a boiler malfunction, or required servicing, the BMS II automatically compensates for a lack of
response from any unit and brings on the next available boiler to satisfy the demand. This feature
operates in both sequential and parallel modes.
Fault Alarm Surveillance
If an EMS or BAS is not used with the BMS II to monitor faults, a Fault Alarm Relay can be activated
thereby notifying facility managers of faults associated with the BMS II.
BMS II Programming Via RS232 Port.
If desired, the BMS II can be programmed by connecting a Laptop Computer or other terminal emulation
device to the RS232 Port terminals on the BMS II. Detailed set-up instructions and available command
listings are provided in Appendix G. Most settings are also programmable using Modbus.
1-3
INSTALLATION
CHAPTER 2 - INSTALLATION
2.1 INTRODUCTION
This Chapter provides the descriptions and procedures necessary to mount the BMS II and connect all
boiler plant units and applicable sensors. Guidelines are also provided for connection of an EMS or BAS
being used with the system. Refer to the wiring diagram provided in Appendix E when making all wiring
connections to the BMS II.
2.2 SITE SELECTION AND MOUNTING
Ensure that the site selected for installation of the BMS II provides the following:
•
Access to single-phase AC power from 110 to 240 VAC, 60 Hz nominal
•
Sufficient clearances to permit maintenance and setup/operational tasks on the BMS II.
Mounting the BMS
AERCO recommends that the BMS II be wall-mounted using a sheet of plywood or other suitable
material. For easy viewing, the BMS II controls and display should be at eye level. Mounting is
accomplished using three screws (not provided). The spacing for the three screws are indicated on the
rear of the BMS II in millimeters. Figure 2-1 shows the rear of the panel enclosure and also indicates the
required spacing for the three mounting screws in inches. Proceed as follows to mount the unit:
1. First install a screw on the mounting surface at the top center location shown in Figure 2-1. Leave a
space of approximately 1/8 inch between the mounting surface and the head of the screw.
2. Remove the wiring compartment cover from the front of the BMS II (see Figure 1-1) to provide access
to the slots for the two lower mounting screw locations.
3. Hang the BMS II on the installed top screw. Position the unit so it is level.
4. Mark the locations for the two lower screws.
5. Remove the BMS II and drill two pilot holes for the lower screws.
6. Replace the BMS II on the installed top-center screw.
7. Secure the BMS II to the wall by installing the two lower screws. DO NOT over-tighten the screws.
2-1
145 mm (5.7")
INSTALLATION
Figure 2-1. BMS II Mounting Provisions
2.3 GENERAL WIRING REQUIREMENTS
All wiring connections to the BMS II are made at the terminals located behind the wiring compartment
cover as shown in Figure 2-2. Run all wiring through the knock-outs provided on the bottom surface of
the unit. Shielded, twisted-pair cable should be used for sensor and communication wiring. This wiring
should be 18 to 24 AWG. Examples of suitable sensor and communication wire are: Belden 9841, 8761,
3105A or equivalent. AC power wiring should be 14 to 18 AWG. The BMS II wiring diagram is provided in
Appendix E. Once mounting is complete and the BMS is secured in place, loosen the two captive screws
on the wiring compartment cover using a Phillips screwdriver. Feed all wiring through the knock-outs
provided on the bottom of the panel.
NOTE
Refer to the wiring diagram provided in Appendix E when making all
wiring connections to the BMS II.
2-2
INSTALLATION
WARNING
THE BMS II CAN BE POWERED BY SINGLE-PHASE AC
VOLTAGES RANGING FROM 85 TO 265 VAC. THEREFORE,
EXERCISE EXTREME CARE WHEN CONNECTING POWER
WIRING TO THE UNIT. ENSURE THAT THE EXTERNAL
CIRCUIT BREAKER SUPPLYING LINE VOLTAGE TO THE BMS
II IS TURNED OFF TO AVOID SEVERE ELECTRICAL SHOCK.
2.4 POWER WIRING
Use 14 to 18 AWG wire for AC power connections and proceed as follows:
1. Feed the power wiring through the right-most knock-out in the bottom of the panel enclosure (Figure
2-2).
2. Connect the Line (black), Neutral (white) and Ground (green) wire leads to the L, N and
(GND)
terminals. The terminal blocks can be detached from the BMS II headers if necessary to simplify field
wiring connections.
3. Following completion of power wiring, turn on the external circuit breaker or switch and apply power
to the unit. The BMS II display will momentarily show:
AERCO BMSII
REV X.XX
(Where: X.XX represents the revision level of the installed BMS II software)
4. Next, since the Header Sensor is not yet installed, the display will then show:
HEADER TEMP
SENSOR ERROR
The red FAULT LED indicator will also light and a fault message will alternately be displayed as
follows:
HEADER SENSOR
ERROR
5. Press the ON-OFF key on the keypad. The green ON LED indicator will light and the BMS II display
will continue to show the above message.
6. After verifying proper power connections, press the ON-OFF key. The ON LED will turn off.
7. Turn off the external power switch and/or circuit breaker. The BMS II display will go blank.
8. DO NOT apply power to the BMS II until all of the required external connections described in
paragraphs 2.5 through 2.11 have been completed.
2-3
INSTALLATION
SENSORS
& 4-20 mA
INTERLOCKS
& SETBACK
RS485
& RS232
RELAYS
AC POWER
Figure 2-2. BMS II With Wiring Compartment Cover Removed
2-4
INSTALLATION
2.5 SENSOR INSTALLATION AND WIRING
There are two types of sensors that can be installed: a Header Sensor and an Outside Air Sensor. If
desired, an optional Return Sensor can also be installed. The Return Sensor is the same type and part
number as the Header Sensor, however it is only used for `external monitoring purposes. The Header
Sensor is required for all modes of operation. The Outdoor Air Sensor is required for operation in the
Outdoor Reset Mode.
All Sensor wiring should be run separately from power wiring to avoid inducing electrical noise on the
sensor wiring.
Header Sensor
A Header Sensor Kit, (part no. 122790) is provided with the BMS II. This Kit contains the Header Sensor
(64038), a Thermowell (122758) and some heat conductive grease which MUST be used with the Sensor.
When installing the Sensor, use a 1/2 inch NPT tapped coupling or a 4 x 4 x 1/2 inch Tee fitting. Shielded
pair, 18 AWG cable (Belden # 8760 or equiv.) is recommended for Header Sensor wiring. The Header
Sensor must be installed between 2 and 10 feet downstream of the LAST boiler in the boiler plant’s
supply water header. Install the Header Sensor as follows:
NOTE
The Header Sensor is a thermistor type sensor. The Resistance vs.
Temperature Chart for this sensor is provided in Appendix D. The length
of the Header Sensor wire leads should not exceed 600 feet.
1. Refer to Figure 2-3 for the Header ‘Sensor installation details.
2. Install the Header Sensor and Thermowell into the 1/2 inch NPT tapped coupling or a 4 x 4 x 1/2 inch
Tee fitting using heat-conductive grease provided. This will aid in its response.
3. For proper response, ensure that the Header Sensor probe is inserted at least 2 inches into the water
flow.
4. Using shielded pair cable (Belden #8760 or equiv.) connect the Header Sensor leads to HDR SEN
terminals 4 and 5 on the BMS II. There is no polarity to observe when making these connections.
5. Terminate the cable shield at SHLD terminal 3 of the BMS II. DO NOT terminate the shield at the
Sensor end of the cable.
Return Sensor
As mentioned in paragraph 2.5, the Return Sensor is identical to the Header Sensor. Therefore, if a
Return Sensor is being installed, another Header Sensor Kit (part no. 122790) is required. The Return
Sensor should be installed in the boiler water return line within 3 feet of the first boiler in the boiler plant’s
return water line. The installation details shown in Figure 2-3 for the Header Sensor also apply to the
Return Sensor. If used, install the Return Sensor as follows:
1. Refer to Figure 2-3 and install the Return Sensor and Thermowell into the 1/2 inch tapped coupling or
or Tee fitting using heat conductive grease.
2. Using shielded pair cable (Belden #8760 or equiv.) connect the Return Sensor leads to terminals 6
and 5 on the BMS II. There is no polarity to observe when making these connections.
3. Terminate the cable shield at SHLD terminal 3 of the BMS II. DO NOT terminate the shield at the
Sensor end of the cable.
2-5
INSTALLATION
Figure 2-3. Header Sensor Installation Details
Outdoor Air Sensor
The Outdoor Air Temperature Sensor (part no. GP-122662) is required when operating in the BMS II in
the Outdoor Reset Mode (paragraph 4.2). An Outdoor Air Sensor Kit (part no. GM-122781) is also
available. This kit contains the Sensor (GP-122662) and a Mounting Bracket for wall mounting. The
Outdoor Air Sensor should be mounted on the North side of the building, shielded from direct sunlight,
and away from air intakes or outlets from the building. Shielded pair 18 AWG cable (Belden # 8760 or
equiv.) is recommended for sensor wiring. The Outdoor Air Sensor can be mounted up to 600 feet from
the BMS II.
NOTE
The Outdoor Air Sensor is a thermistor type sensor. The Resistance vs.
Temperature Chart for this type of sensor is provided in Appendix E. The
length of the Header Sensor wire leads should not exceed 600 feet.
1. Refer to Figure 2-4 for a typical Outdoor Air Sensor installation.
2. Attach the sensor to the mounting bracket and secure the bracket in a suitable location on the North
side of the building.
3. Using shielded pair cable (Belden #8760 or equiv.), connect the two Sensor leads to terminals 1 and
2 on the BMS II. There is no polarity to observe when connecting the sensor.
2-6
INSTALLATION
4. Terminate the cable shield at SHLD terminal 3 of the BMS II. DO NOT terminate the shield at the
Sensor end of the cable.
Figure 2-4. Outdoor Air Sensor Installation
2-7
INSTALLATION
2.6 RS485 (MODBUS) WIRING AT THE BMS II
The BMS II communicates with the AERCO Boilers over a RS485 network using Modbus protocol. All
Modbus networks are implemented utilizing a Master/Slave scenario where only one device, the Master,
can initiate a communication sequence. AERCO Boilers equipped with C-More or E8/BCM (Modulex)
control systems can only function as Slaves on a Modbus network. However, the BMS II can function as a
Master controlling C-More or E8/BCM Boiler Slaves, or as a Slave controlled by an Energy Management
System (EMS) developed by other manufacturers. Additional information on implementing Modbus
networks is provided in AERCO Modbus Communication Manual GF-114.
RS485 (Modbus) networks are wired in a “daisy chain” configuration similar to the example shown in
Figure 2-5. Shielded twisted-pair, 18 – 24 AWG cable (Belden #98421, #3105A, #8760 or equiv.) is
recommended for RS485 wiring connections.
At the BMS II, wiring connections are made at the terminals labeled 485 B+ and 485 A-.
Figure 2-5. Typical Daisy-Chain Modbus/RS485 Network
At the BMS II, RS485 (Modbus) wiring connections are made at the wiring terminals labeled 485 B+ and
485 A-. The cable shield is terminated at the SHLD terminal (3) of the BMS II.
BMS II Bias Switches
The BMS II contains two bias DIP switches which are mounted on the lower portion of the motherboard
(Figure 2-6). These switches are used to activate or deactivate bias voltage on the RS485 network and
should be positioned as follows:
1. When wiring to BCMs controlling Modulex Boilers, the BMS II bias switches must be turned on
(down).
2. When wiring to C-More control systems (Benchmark & KC1000 Boilers), the BMS II bias switches
must be turned off (up). Bias on the network is provided by activating switches in the last C-More
Controller on the daisy-chain loop.
2-8
INSTALLATION
Figure 2-6. Location of BMS II DIP Switches
2.7 RS485 (MODBUS) WIRING AT THE AERCO BOILERS
The RS485 wiring connections at the AERCO Boilers will depend on the type of AERCO Boilers and
Control Systems being used on the Modbus Network. Benchmark Series and KC1000 Boilers currently
utilize C-More Control Systems. Modulex Series Boilers utilize Boiler Control Modules (BCMs) with E8
Controllers.
RS485 Wiring for Benchmark Series and KC1000 Boilers
RS485 wiring connections are made at the RS485 COMM terminals of each boiler’s I/O Box as shown in
Figures 2-7 (Benchmark) and Figure 2-8 (KC1000). Connect the wiring as follows:
1. Connect the positive lead to the + terminal
2. Connect the negative lead to the - terminal
2-9
INSTALLATION
3. DO NOT terminate the shields to the Ground (G) terminal at the Boiler end of the RS485 loop.
Connect the shields of the incoming and outgoing leads together. The RS485 loop shield should only
be terminated at terminal 3 of the BMS II.
4. Activate the BIAS1, BIAS2 and TERM switches on the last boiler in the daisy-chain loop.
5. DO NOT activate the bias switches on the BMS II.
Figure 2-7. RS485 (Modbus) Wiring For Benchmark Series Boilers
2-10
INSTALLATION
Figure 2-8. RS485 (Modbus) Wiring For KC1000 Boilers
RS485 Wiring for Modulex Series Boilers
RS485 wiring connections are made at the MODBUS terminals of each Boiler’s BCM Module as shown in
Figure 2-9. Connect the wiring as follows:
2-11
INSTALLATION
1. Connect the positive lead to terminal 1 (MODBUS B +) of connector Y2.
2. Connect the negative lead to terminal 2 (MODBUS A -) of connector Y2.
3. DO NOT terminate the shields at the Boiler end of the RS485 loop. Connect the shields of the
incoming and outgoing leads together. The RS485 loop shield should only be terminated at the BMS
II.
4. The last BCM in the daisy-chain must have the termination jumper engaged as shown in Figure 2-9.
5. The BMS II bias switches must be activated.
JUMPER
SHOWN IN
“TERMINATED”
(UP) POSITION
C
V
T
7 6
5
4
JP2
3
Y2
Y2
2
1
JP1
Y4
Y3
I
0
Y1
A1
SW1
BCM FRONT VIEW
Figure 2-9. RS485 (Modbus) Wiring For Modulex Series Boilers
2.8 SAMPLE RS485 (MODBUS) NETWORK DIAGRAMS
Figure 2-10 shows a sample RS485 (Modbus) Network diagram with the BMS II connected to KC1000 or
Benchmark Series Boilers equipped with C-More Control Systems. Figure 2-11 shows a similar sample
diagram with the BMS II connected to Modulex Series Boilers equipped with BCMs and E8 Controllers.
2-12
INSTALLATION
Figure 2-10. Sample RS485 (Modbus) Network For Benchmark or KC1000 Boilers
BMS II
NETWORK BOILER 1
1 B (+)
485 B (+)
485 A (-)
2
SHLD
(TERM. 3)
A (-)
MODBUS
P/O BCM (Y2)
BIAS
SWITCHES
NETWORK BOILER 2
SET BOTH
SWITCHES
TO “ON”
1 B (+)
2
A (-)
MODBUS
P/O BCM (Y2)
NOTE
THE LAST BCM SLAVE ON THE RS485 LOOP MUST
HAVE ITS TERMINATION RESISTOR (T) ACTIVATED.
REFER TO GF-115-C FOR MORE INFORMATION.
THE BIAS SWITCHES IN THE BMS II SHOULD BOTH
BE TURNED “ON”.
TO OTHER
NETWORK
BOILERS
(3 – 9)
Figure 2-11. Sample RS485 (Modbus) Network For Modulex Series Boilers
2-13
INSTALLATION
2.9 RS232 WIRING AT THE BMS II
The BMS II communicates with an external Energy Management System (EMS) or Building Automation
System (BAS) utilizing the wiring terminals labeled RXD (Receive Data), TXD (Transmit Data) and 232
ISO GND (Isolated Ground). If the EMS does not contain an RS232 port, a RS485-to-RS232 Converter
(AERCO Part No. 124943) is required to communicate with the BMS II. If a Converter is required, it can
be installed inside the wiring compartment of the BMS II, or installed externally. The BMS II provides an
isolated 12 VDC output terminal (ISO 12V) which can be used to power AERCO’s RS485-to-RS232
Converter if needed. Refer to Figure 2-12 for sample network layouts.
BMS II
RS232 PORT
EMS
232
PORT
RS232 (50 FT. MAX.)
485
PORT
RXD
+(B)
RXD
TXD
-(A)
GND
ISO
GND
SHLD
TXD
TO BOILERS
CONTROLLED
VIA RS485
NETWORK
(4000 FT. MAX.)
EMS WITH RS232 PORT
RS485-TO-RS232
CONVERTER
RS485
(4000 FT. MAX.)
T+/R+
+
TXD
T-/R-
-
SHLD
BMS II
232
PORT
RS232
(50 FT. MAX.)
485
PORT
RXD
+(B)
RXD
TXD
-(A)
GND
ISO
GND
ISO
12V
SHLD
SEE
NOTE 2
SEE NOTE 1
NOTES:
1. IF THE EMS CONTAINS A 4-WIRE RS485 PORT,
SEE DETAIL “A”.
2. THE BMS II PROVIDES A 12V OUTPUT IF
NEEDED TO POWER THE RS485-TO-RS232
CONVERTER.
4-WIRE RS485 PORT
RS485 PORT
EMS
T+
TR+
RSHIELD
DETAIL “A”
EMS WITH ONLY RS485 PORT
Figure 2-12. Sample Network Connections To EMS
2-14
TO BOILERS
CONTROLLED
VIA RS485
NETWORK
(4000 FT. MAX.)
INSTALLATION
2.10 INTERLOCK WIRING
The BMS II is equipped with two interlocks designated Interlock 1 (INT 1) and Interlock 2 (INT 2). Since
both interlocks must be closed for the BMS to operate the boiler plant, the associated wiring terminals are
jumpered, prior to shipment. If desired, proving device switches can be connected to either interlock in
place of the jumper. If used, interlock wiring connections are made as described in the following
paragraphs.
CAUTION
DO NOT remove the factory-installed jumpers for INT1 or INT2
unless the respective Interlock is being connected to an external
proving device. The boiler plant WILL NOT operate if one or both
Interlocks remain open.
NOTE
If necessary, Interlock 1, Interlock 2 or both can be programmed
to operate the boilers only when the outdoor air temperature falls
below the system start temperature. The selection is made with
“SYS START INTLK” in the Relay Menu. The default is set to
Interlock 1. See paragraph 3.11 for details.
Interlock 1 (INT 1) Wiring
Interlock 1 is often used with auxiliary equipment, such as air dampers or flow switches. It can also be
used as a general purpose interlockIf used, connect the end proving switch to INT 1 terminals 9 and 10 as
shown in the wiring diagram in Appendix E.
Interlock 2 (INT 2) Wiring
Similar to Interlock 1, Interlock 2 is a general purpose interlock which can be used with a variety of
devices or equipment or conditions that must be “proved” prior to enabling the boiler plant. If used,
connect the end proving switch to INT 2 terminals 11 and 12 as shown in the wiring diagram in Appendix
E.
2.11 SET BACK WIRING
The SET BACK terminals, shown in the wiring diagram in Appendix E, are used only when implementing
a manually-controlled header temperature offset. If used, connect a dry contact switch across SET
BACK terminals 13 and 14. See the sub-section entitled Manual Offset included in paragraph 3.8 (Field
Adjust Menu),
2.12 RELAY WIRING
The BMS contains a System Start (SYS START) Relay, a Fault Alarm (FLT ALARM) Relay and an
Auxiliary (AUX) Relay which can be connected to external monitoring or control devices. The contacts for
each of these relays are rated at 120 VAC, 5A and are fused internally at 5A with replaceable fuses. The
contact terminals for these relays are shown in the wiring diagram in Appendix E.
2-15
INSTALLATION
NOTE
The state of the SYS START, FLT ALARM and AUX Relays are
controlled by options contained in the Relay Menu described in
Chapter 3, paragraph 3.11.
System Start Relay
The state of the System Start (SYS START) relay contacts are controlled by the value set for the SYS
START TEMP and SYS START OPTION in the Relay Menu. The contacts are closed either when the
outdoor air temperature is less than the System Start Temperature (SYS START TEMP) or when there is
a load, or both. The default value for this temperature setting is 70°F. See paragraph 4.5 for additional
information.
Fault Alarm Relay
The state of the Fault Alarm (FLT ALARM) relay contacts are controlled by the option selected for the
FAULT ALRM RELAY, FAULT ALARM BLR and FAULT ALRM CLEAR in the Relay Menu. Contact
closure can be set to: ALL FAULTS, NO INTERLOCK, INTERLOCK 2 or INTERLOCK 1. The default for
this option is ALL FAULTS.
Auxiliary Relay
The state of the Auxiliary (AUX) relay contacts are controlled by the AUX RELAY CLOSE and AUX
RELAY OPEN options selected in the Relay Menu. Contact closure can be set to occur either when all
available boilers are at the 100% Fire Rate or for either when all boilers are at 100% Fire Rate or no
boilers are available (all boilers faulted or turned off).
2.13 4 – 20 MA WIRING
The BMS II can accept a remote 4 – 20 mA current signal representing a setpoint. This input is fused
internally at 0.63A. Connect the signal leads to the 4-20 + and 4–20 – terminals. Refer to Chapter 4,
paragraph 4.3 for Remote Setpoint programming using a 4 -20 mA input.
2-16
OPERATION
CHAPTER 3 - OPERATION
3.1 INTRODUCTION
The information in this Chapter provides a guide to the operation of the BMS II using the controls and
display mounted on the front panel of the unit. This Chapter describes the basic procedure to navigate
through the extensive array of menus and options incorporated in the BMS II design. Descriptions for all
menus and options are also provided.
3.2 FRONT PANEL OPERATING CONTROLS AND DISPLAYS
The front panel of the BMS II contains an vacuum fluorescent display (VFD) and an 8-key touch-pad. The
display and controls are illustrated and described in Figure 3-1 and Table 3-1 respectively.
Figure 3-1. BMS II Front Panel Controls and Displays
3-1
OPERATION
Table 3-1. BMS II Front Panel Controls and Displays
ITEM
NO.
1
CONTROL, INDICATOR
OR DISPLAY
VFD Display
FUNCTION
The Vacuum Fluorescent Display (VFD) display consists of 2
lines each capable of displaying up to 16 alphanumeric
characters. The information displayed includes:
• Startup Messages
• Alarm Messages
• Operating Status Messages
• Menu Selections
3-2
2
FAULT Indicator
Red FAULT LED indicator lights when a BMS II alarm
condition occurs. An alarm message will also appear in the
VFD display.
3
CLEAR Key
Turns off the FAULT indicator and relay if FAULT ALRM
CLEAR is set to Manual and the fault is still active or no
longer active. If FAULT ALRM CLEAR is set to Automatic
and the fault is still active, this will also turn off the fault relay
and indicator. In both cases the alarm message will remain
until the alarm is no longer valid.
4
MENU Keypad
Consists of 6 keys which provide the following functions for
the BMS II menus:
MENU
Steps through the main menu categories shown in Figure 2-1.
The Menu categories wrap around in the order shown.
BACK
Allows you to go back to the previous menu level without
changing any information. Continuously pressing this key will
bring you back to the default status display in the Operating
Menu. Also, this key allows you to go back to the top of a
main menu category.
▲ (Up) Arrow
When in one of the main menu categories, pressing this key
will move you forward through the displayed menu category.
If the CHANGE key was pressed and the menu item is
flashing, press the ▲ arrow key increment the setting.
▼ (Down) Arrow
When in one of the main menu categories, pressing this key
will select the displayed menu category. If the CHANGE key
was pressed and the menu item is flashing, pressing the ▼
(Down) arrow key will decrement the selected setting.
CHANGE
Permits a setting to be changed (edited). A valid password
must be entered before changing most menu items. When
the CHANGE key is pressed, the displayed menu item will
alternate in color with the background (reverse video).
Pressing the ▲ or ▼ arrow key when this occurs will
increment or decrement the displayed setting.
ENTER
Saves the modified menu information in memory. The
display will return to the normal state.
5
ON/OFF Key
Enables and disables BMS II operation.
6
ON Indicator
Green ON LED lights when the BMS II is enabled.
OPERATION
3.3 BMS II MENU STRUCTURE
The BMS II incorporates an extensive menu structure which permits the operator to set up, and configure
the unit. The menu structure consists of nine major menu categories as shown in Figure 3-2. Each of the
menus shown, contain options which permit operating parameters to be viewed or changed. The menus
are protected by two different password levels to prevent unauthorized use. These passwords provide
access as follows:
•
Password Level 1 (159) allows viewing of all menu categories. In addition, this Password Level allows
all Menu options to be changed, except for Calibration Menu options.
•
Password Level 2 (6817) allows viewing and changing of the options contained in the Calibration
Menu. In addition, it allows all Level 1 menu categories to be viewed or changed. The Calibration
Menu should only be used by factory-trained personnel.
Prior to entering the correct password, the options contained in all of the Menu categories (except the
Calibration Menu) can be viewed. However, except for Internal Setpoint Temperature (Field Adjust Menu),
none of the viewable menu options can be changed.
Once the valid Level 1 (159) or Level 2 (6817) password is entered, the options listed in the available
menus can be viewed and changed, if desired.
Menu Processing Procedure
Accessing each menu and option is accomplished using the Menu Keys shown in Figure 3-1. Therefore,
it is imperative that you be thoroughly familiar with the following basic steps before attempting to perform
specific menu processing procedures.
1. The BMS Il will normally be in the Operating Menu and the VFD will display the current unit status.
Pressing the ▲ or ▼ arrow key will display the other available data in the Operating Menu.
2. Press the MENU key. The display will show the Setup Menu which is the next menu category shown
in Figure 3-2. This menu contains the Password option which must be entered if other menu options
will be changed.
3. Continue pressing the MENU key until the desired menu is displayed.
4. With the desired menu displayed, press the ▲ arrow key. The first option in the selected menu will be
displayed.
5. Continue pressing the ▲or ▼ arrow key until the desired menu option is displayed. Pressing the ▲
arrow key will display the available menu options in the Top-Down sequence. Pressing the ▼ arrow
key will display the options in the Bottom-Up sequence. The menu options will stop when the last
option is reached, going forward, or the first option is reached, going backwards. They do not wraparound after the first or last available option.
6. To change the value or setting of a displayed menu option, press the CHANGE key. The displayed
option will appear in reverse video. Press the ▲ or ▼ arrow key to scroll through the available menu
option choices for the option to be changed. The menu option choices do not wrap around.
7. To select and store a changed menu option, press the ENTER key.
3-3
OPERATION
Figure 3-2. BMS II Menu Structure
3-4
OPERATION
NOTE
Paragraphs 3.4 through 3.12 provide detailed descriptions of the
options contained in each of the menus shown in Figure 3-2. The
menu options appear in the first line of the VFD display and the
corresponding value or setting for the displayed option will appear
in the second line of the display.
Refer to Appendix A for tabular summaries of all menu options
showing the allowable entry ranges and default values,
3.4 OPERATING MENU
The Operating Menu displays a number of key operating parameters for the BMS II: These parameters
include:
HEADER TEMP, HEADER SETPOINT, OUTSIDE AIR TEMP, PERCENT OF LOAD, I/O STATUS and
RETURN TEMP.
All of the items in this menu are “Read-Only” and do not allow personnel to change or adjust any of the
displayed parameters. Since this menu is “Read Only”, it can be viewed at any time without entering a
password. The Operating Menu options are described in the paragraphs which follow.
HEADER TEMP and PERCENT OF LOAD
The HEADER TEMP menu option displays the actual water temperature (°F) measured by the Header
Sensor connected to HDR SEN terminals 4 and 5 of the BMS II. If the Header Sensor is not installed,
HDR SENS ERROR will appear in the first line of the display. The red FAULT indicator will also light. The
Header Sensor MUST be installed for the BMS II to operate properly.
The PERCENT OF LOAD option shows the percent level going from the BMS II to each boiler in the
boiler plant. It also shows the number of boiler units that are operating.
HEADER SETPOINT
This menu option is the setpoint temperature to which the control is set when operating in the Constant
Setpoint, Remote Setpoint or Outdoor Reset Mode. When in the Constant Setpoint Mode, this value is
equal to the Internal Setpoint setting in the Configuration Menu. When in the Remote Setpoint Mode, this
value is the setpoint equivalent to the remote analog signal or Modbus value supplied to the unit. When
in the Outdoor Reset Mode, this is the derived value from the charts in Appendix D.
OUTSIDE AIR TEMP
The OUTSIDE AIR TEMP option shows the outdoor air temperature (°F) measured by the Outdoor Air
Sensor. This sensor is connected to OUT AIR SENS terminals 1 and 2 of the BMS II. If the Sensor is not
connected, the second line of the display will show NOT CONNECTED. The Outdoor Air Sensor MUST
be connected when operating in the Outdoor Reset Mode.
3-5
OPERATION
I/O STATUS
I/O (Input/Output) STATUS is displayed as a hexadecimal number. The meaning of each bit is as
indicated below. The higher 4 bits, or most significant digit (MSD), indicate which inputs are activated.
The lower 4 bits, or least significant digit (LSD), indicate which relay outputs are activated.
MSD: Bit 7 =(empty)
Bit 6 = Interlock 1
Bit 5 = Interlock 2
Bit 4 = Setback
LSD: Bit 3 = (empty)
Bit 2 = Sys Start Relay
Bit 1 = Fault Relay
Bit 0 = Aux Relay
RETURN TEMP
The RETURN TEMP (°F) option is displayed only if an optional Return Sensor is installed in the boiler
water return line. When installed, it is connected to terminals 5 and 6 on the BMS II. This optional sensor
is used for external monitoring purposes ONLY.
3.5 SETUP MENU
The SETUP MENU permits the operator to set the unit password which is required to change any of the
menu options. To prevent unauthorized use, a previously entered password entry will time-out after 1
hour. Therefore, the password must be reentered when required. In addition to permitting password
entries, the Setup Menu is also used to enter the date and time. Descriptions of the Setup Menu options
follow.
ENTER PASSWORD
The ENTER PASSWORD option allows the Level 1 (159) or Level 2 (6817) to be entered.
Once the valid Level 1 password (159) is entered, options in all Menus, except the Calibration Menu, can
be changed.
The Level 2 password (6817) must be entered to view or change options in the Calibration Menu. Only
factory trained personnel should use this Menu.
Date and Time Menu Options
The Setup Menu options associated with date and time are as follows:
3-6
• SET MONTH
01 -12
• SET DATE
01 – 31
• SET YEAR
00 – 99
• SET HOUR
00 -23
• SET MINUTE
00 – 59
• SET DAY OF WEEK
SUNDAY TO SATURDAY
OPERATION
3.6 RS232 MENU
The RS232 MENU options permit the BMS II to communicate with an external Energy Management
System (EMS) or Computer via the RS232 Port wiring terminals labeled RXD, TXD, ISOGND on the BMS
II. The RS232 Menu options are used to select the RS232 Mode, Baud Rate, Modbus Address, Network
Timeout period and Modbus Pass-Thru feature for the BMS II.
RS232 MODE
The RS232 MODE option allows the selection of the type of communication desired at the RS232 port:
NORMAL (dumb terminal) or MODBUS SLAVE (Modbus Protocol). When the BMS II is being controlled
by an external Energy Management System (EMS), via Modbus Protocol, set this option to MODBUS
SLAVE (default). If the EMS being used contains only a RS485 port, a RS485-to-RS232 Converter is
required.
RS232 BAUD RATE
The RS232 BAUDRATE option sets the communication Baud Rate between the BMS II and the
EMS. Available settings include 2400, 4800, 9600 (default), or 19200. Both the BMS II and EMS
MUST be set to the same baud rate to enable the communication link.
MODBUS ADDRESS
The MODBUS ADDRESS option sets the BMS II address when operating as a Slave on a Modbus
Network. The address can be set from 128 (default) to 247.
NETWORK TIMEOUT
When the BMS II is operating in the Remote Setpt mode via Modbus, the NETWORK TIMEOUT option
defines the maximum time (seconds) allowed before re-sending the setpoint information. If the
information is not re-sent within this time perion, the BMS will default to its Failsafe mode of operation set
in the Configuration Menu. The network timeout period is selectable from 005 to 240 seconds (Default =
060).
MODBUS PASS THRU
When enabled, the MODBUS PASS THRU option allows an EMS or computer, communicating from the
RS232 port, to access information from the boilers connected on the RS485 port of the BMS II. When
enabled, it allows boiler monitoring and setup but not direct control of the boilers.
3.7 RS485 MENU
The BMS II communicates with the connected AERCO network boilers via its RS485 (Modbus) Port (485
B+ and 485 A-). Therefore, the RS485 Menu contains the options necessary to enable communication
between the BMS II and the connected network boiler slaves. Each network boiler on the Modbus
network must be assigned a unique address to enable communication.
The RS485 Menu options are used to select the RS232 Baud Rate, Min./Max. Range of Slave Addresses,
Total Number of Networked Boilers, Type of Modbus Control and the Unique Address for each Networked
Boiler. Descriptions of these options follow.
The BMS II can automatically detect boilers within the “”Min Slave Addr” and “Max Slave Addr” range, or
you can program the boiler addresses in the order desired. AERCO recommends programming the
addresses in the desired order. When programming the boiler addresses, set the “Min Slave Addr” and
“Max Slave Addr” to zero.
3-7
OPERATION
RS485 BAUD RATE
The RS485 BAUDRATE option Sets the communication baud rate for the Modbus network
between the BMS II and the Boilers connected to the RS485 terminals [B(+), A(-)]. Available
settings are 2400, 4800, 9600 (default), or 19200.
MIN SLAVE ADDR
The MIN SLAVE ADDR sets the Minimum Slave Address for the Boilers being controlled on the RS485
(Modbus) Network when automatic boiler detection is desired; otherwise, leave set to zero. Allowable
entry range is 000 to 127 (default = 000).
MAX SLAVE ADDR
The MAX SLAVE ADDR Sets the Maximum Slave Address for the Boilers being controlled on the RS485
(Modbus) Network when automatic boiler detection is desired; otherwise, leave set to zero. Allowable
entry range is 000 to 127 (default = 000).
NUMBER NETWK BLRS
This menu option sets the Number of Network Boilers connected to the BMS II RS485 (Modbus)
terminals. Up to 32 Boilers can be connected to the Network (default = 02).
MODBUS CNTL TYPE
This menu option sets the Modbus Control Type to ROUND ROBIN or BROADCAST. Only ROUND
ROBIN can be used at this time. When set to ROUND ROBIN, each networked boiler is addressed
individually in sequence. BROADCAST is currently not used for the BMS II.
NETW BOILER Xx ADDRESS= Yyy (Where Xx = 01 – 32; Yyy = 001 – 127)
Up to 32 Network Boilers can be accommodated on the Modbus Network. Each Boiler must be assigned
a unique address on the network ranging from 001 to127. No addresses should be entered if automatic
boiler detection is desired. Simply set the MIN SLAVE ADDR and MAX SLAVE ADDR to the minimum
and maximum address range of the boilers. To program boiler addresses in the order you desire, enter
them here and set the MIN SLAVE ADDR and MAX SLAVE ADDR to zero.
3.8 FIELD ADJUST MENU.
The FIELD ADJUST MENU contains the most extensive list of options compared to the other 8 Menu
categories. The options in this menu allow you to adjust important parameters to suit the specific needs of
your BMS II installation. Included are options to select the Header Mode and Temperature Limits, Internal
Setpoint, Building Reference Temperature, Reset Ratio and Remote Signal. In addition, the Field Adjust
Menu contains a series of options which can be used to set up a Header Setpoint Offset Schedule for an
entire week. Descriptions of the Field Adjust Menu options:
HEADER SET MODE
The HEADER SET MODE option sets the Header Setpoint selection method for the BMS II. Allowable
selections are: CONSTANT SETPT, OUTDOOR RESET or REMOTE SETPT. (Default = CONSTANT
SETPT).
HDR HIGH LIMIT
The HDR HIGH LIMIT option sets the maximum temperature setting allowed for the Header Setpoint.
This setting also defines the 20 mA temperature equivalent when operating in the Remote Setpoint Mode
using a 4 – 20 mA signal. The allowable setting range is from the HDR LOW LIMIT to 220°F. (Default =
200°F).
3-8
OPERATION
HDR LOW LIMIT
The HDR LOW LIMIT menu option sets the minimum temperature setting allowed for the Header Setpt.
This setting also defines the 4 mA temperature equivalent when operating in the Remote Setpoint Mode
using a 4 – 20 mA signal. The setting range is from 40°F to the HDR HIGH LIMIT. (Default = 40°F).
INTERNAL SETPT
The INTERNAL SETPT temperature is the HEADER SETPT used when CONSTANT SETPT is selected
for the HEADER SET MODE or when the BMS II operates in the Failsafe Mode and CONSTANT SETPT
is selected as the FAIL SAFE MODE setting in the Configuration Menu.
RESET RATIO
This menu option is displayed only if the HEADER SET MODE is set to OUTDOOR RESET. The RESET
RATIO option setting defines the ratio of the increase in Header temperature with respect to each degree
decrease in Outdoor temperature starting from the Building Reference Temperature (BLDG REF TEMP).
The Reset Ratio is adjustable from 0.1 to 9.9. (Default = 1.2). The Reset Ratio Charts provided in
Appendix D are suitable for most applications. However, if a special reset schedule is desired, the
calculation method described in Appendix D must be used.
BLDG REF TEMP
The BLDG REF TEMP menu option is only displayed when the HEADER SET MODE is set to
OUTDOOR RESET. This option is used to set the Building Reference Temperature (BLDG REF TEMP)
to the desired value from 40°F to 220°F. (Default = 70°F).
REMOTE SIGNAL
The REMOTE SIGNAL menu option is only displayed when the HEADER SET MODE is set to REMOTE
SETPT. When displayed, this option is used to select the controlling remote signal: to 4 – 20 mA or
MODBUS. (Default = 4-20 mA)
OFFSET ENABLE
The OFFSET ENABLE menu option is used to turn ON, or turn OFF the Setpoint Temperature Offset
feature. (Default = OFF)
Offset Menu Options
The Field Adjust Menu contains a series of menu options which permit an offset schedule to be set up for
a 7-day period (Sunday through Saturday). For each day (Sunday – Saturday), these options include:
• OFFS TEMP [Setpoint Offset Temperature (-50°F to +50°F)]
• ON HOUR (00 to 23)
• ON MINUTE (00 to 59)
• OFF HOUR (00 to 23)
• OFF MINUTE (00 to 59)
Normally, if an Offset Schedule is used, it is controlled automatically using the set-up procedures
described in the paragraph titled “Setting Up An Offset Reset Schedule” However, if desired, the header
offset can be controlled manually by connecting a switch across the SET BACK wiring terminals 13 and
14 as shown in the wiring diagram in Appendix E. If a manual offset is used, refer to the paragraph titled
“Manual Offset”.
3-9
OPERATION
Setting Up An Offset Schedule
The basic steps involved in setting up an automatic reset schedule consist first selecting the temperature
offset and then entering the start and stop times for which the offset will be in effect. Keep in mind that
the BMS II uses a 24-hour clock (00;00 to 23:59) The steps are outlined below. In this example, the
setpoint temperature is being offset -15°F on Sunday from 12:01 AM (00:01) to 8:00 AM (08 hrs)
1. Scroll through the FIELD ADJUST MENU and select OFFSET ENABLE. Set this option to ON.
2. Next, scroll to SUN OFFS TEMP and set the Offset Temperature to -15°F.
3. Press the ▲ arrow key. SUN ON HOUR will be displayed. Set the HOUR to 00.
4. Press the ▲ arrow key again. SUN ON MINUTE will be displayed. Set the MINUTE to 01.
5. Press the ▲ arrow key again. SUN OFF HOUR will be displayed. Set the HOUR to 08.
6. Press the ▲ arrow key again. SUN OFF MINUTE will be displayed. Set the MINUTE to 00.
7. Repeat steps 2 through 6 to set offset schedules for the remaining days of the week. Different offset
temperatures and ON/OFF times can be set for each day if desired.
Manual Offset
If a switch is connected across terminals 13 and 14 on the BMS II, the offset temperature can be
controlled manually. To set up a manual offset schedule, proceed as follows:
1. Scroll through the FIELD ADJUST MENU and select OFFSET ENABLE. Set this option to ON.
2. Next, scroll to SUN OFFS TEMP and set the desired Offset Temperature. A different Offset
Temperature can be set for each day if desired.
3. Scroll through the remaining days of the week and set the desired offset temperature for each day.
Once programmed as described above, closing the SET BACK switch will enable the programmed OFFS
TEMP for that day. Opening the SET BACK switch will disable the OFFSET and the Header Setpoint will
return the selected INTERNAL SETPT temperature.
3.9 CONFIGURATION MENU
The Configuration Menu contains options which set the Boiler operating modes start/stop levels and
maximum allowable power input. In addition, it contains a Fail Safe Mode feature which is used to select
the default mode when the controlling input source is lost.
BOILER OP MODE
The BOILER OP MODE menu option sets the control operation method for the BMS II. to either
SEQUENTIAL or PARALLEL MODE.
Parallel Mode
When PARALLEL MODE is selected, all boilers are simultaneously started by the BMS II. The BLR
START LEVEL and BLR STOP LEVEL set in the Configuration Menu (see below) have no effect when in
this mode. Regardless of the number of Boilers in the plant, the turn-down ratio in the Parallel Mode is
fixed at 20:1 for KC1000 Series Boilers (except 11:1 for KC Low NOx). For Benchmark Series Boilers,
the turn-down ratio is fixed at 20:1 for BMK2.0, 2.0LN, and 1.5LN Boilers. However, for BMK3.0LN Boilers
the turn-down ratio is fixed at 15:1.
3-10
OPERATION
Sequential
When SEQUENTIAL MODE is selected it provides a greater turn-down ratio than the PARALLEL MODE.
This is due to the fact that the turn-down ratio in the Sequential Mode is equal to the number of Boilers
multiplied by the 20 for KC1000 Series and Benchmark Series units.
In Sequential Mode, each boiler is started one at a time based on the load and start/stop levels
programmed in the BMS. The BMS will start a single Modulex boiler when there is a load demand or a
Benchmark or KC1000 boiler when the boiler start level is reached. Once the first boiler reaches twicethe
start level, a second boiler will be started and the load will be distributed evenly between the two boilers.
For instance, if a start level of 25% is chosen, when the first boiler reaches 50% a second boiler will start
(after a 30 second delay), and the BMS will distribute the load 25% for each boiler. If the firing rate of both
boilers reach a combined value equal to 3 times the start level, a third boiler is started by the BMS (after a
30 second delay), and the load will be distributed across all three boilers. This sequence will continue
based on load demand and the number of boilers connected to the BMS.
SYS INTLK CONFIG
This option selects when the System Start Interlock takes effect. The available choices are START
ENABLED (default) and ALWAYS ENABLED. If START ENABLED is selected, the BMS II will wait 30
seconds after the System Start Relay is activated before looking for a closure across the System Start
Interlock selected. (See SYS START INTLK in the RELAY MENU). If no closure is seen after 30
seconds, the BMS II will stop the boilers and display a fault message and activate the fault relay.
ALWAYS ENABLED will cause a fault whenever the interlocks are opened.
NOTE:
The BLR START LEVEL and BLR STOP LEVEL must be
programmed in the BMS II by the user. Refer to Appendix I for
additional information on START/STOP LEVELS.
BLR START LEVEL
The Boiler Start Level (BLR START LEVEL) sets the percentage level at which the Boilers connected to
the BMS II will start. The allowable entry range is from 1% to 100% (default = 20%).
BLR STOP LEVEL
The Boiler Stop Level (BLR STOP LEVEL) menu option set the percentage level below which the Boilers
connected to the BMS II will stop. The allowable entry range is from 1% to 40% (default = 16%).
MAX POWER INPUT
The Maximum Power Input (MAX POWER INPUT) sets the maximum Percent Level that the BMS II can
ramp up the boilers to. This may be useful in an over-sized boiler plant. The allowable entry range is
from 50 % to 100% (default = 100%).
FAIL SAFE MODE
Selects the desired operating mode of the BMS II if it loses its Outdoor Air Sensor when operating in the
Outdoor Reset mode, or loses its Remote Signal when operating in the Remote Setpoint mode. If
CONSTANT SETPT is selected as the FAIL SAFE MODE, the BMS II will operate the boilers to achieve a
Header Setpt equal to the programmed Internal Setpt. If SHUTDOWN is selected, it will shut down all the
boilers.
NOTE:
If the Header Sensor is lost, the BMS II will shut down all the boilers.
3-11
OPERATION
3.10 TUNING MENU
The TUNING MENU options are used to select PID (Proportional Integral Derivative) control functions
incorporated in the BMS II. These functions govern temperature control and response of the ‘BMS II to
the boiler system. Since each system is different, these PID controls can tune the BMS II to the
characteristics of your specific installation. The factory defaults preset by AERCO work well for most
applications. In instances when there is a large error between the setpoint and the actual supply water
temperature, the BMS II may appear to require PID tuning. However, it is best to observe BMS II
operation over a period of time prior to making any PID changes. Contact AERCO, or an AERCO
representative, prior to making any PID setting changes.
The TUNING MENU options include Proportional Bandwidth, Integral Gain, Derivative Gain and Header
Temperature Deadband.
PROPORTIONAL BND
The Proportional Bandwidth (degrees) represents the immediate response to a setpoint error. This value
is the temperature deviation from setpoint for which a 100% output change is desired. This is a part of
the PID output calculation in the BMS II.
For instance, proportional band of 50°F is chosen. The header temperature setpoint is 180°F and the
actual incoming supply water temperature is 130°F. This is a 50°error and the following is true:
Temp. Error_____ X 100 = Firing Rate in %
Prop Bandwidth
Therefore:
50 X 100% = Firing Rate
50
1 X 100 = 100 % Firing Rate
With an error of 30° and a bandwidth of 50, the following would be true:
30/50 X 100 = .6 X 100 = 60% Firing Rate.
INTEGRAL GAIN
The Integral Gain (repeats/min) responds to the setpoint error over time. Integral references the
proportional band error signal and sums itself with respect to the period of time the error exists. Based on
the previous example, if the integral gain is 0.15 repeats/minute at a firing rate of 60% and a temperature
error exists for one minute, then the following is true:
(0.15 reps/min.) x (60% firing rate) = 9% actual firing rate
60% firing rate +9% firing rate = 69% firing rate
If the error continues and is present for another minute, another 9% correction factor will be added:
69% firing rate +9% firing rate = 78% firing rate
If, after a load change, the supply water temperature stabilizes at a temperature above or below the
setpoint, the integral gain should be increased. If, after a load change, the supply water temperature
overshoots and oscillates excessively, integral gain should be reduced.
3-12
OPERATION
DERIVATIVE GAIN
Derivative Gain is a function of time. It senses and responds to the rate of change of the setpoint error.
A slow rate of change will yield a small amount of derivative gain. Conversely, a fast rate of change will
yield a large derivative gain. Too high a derivative gain setting will produce a large output for a short time.
This can result in overshoot of the setpoint. Too low a derivative gain setting will have the opposite effect,
producing a small output for a longer period, and may result in slow system response or the system
undershooting the setpoint.
HDR TEMP DEADBND
This is the temperature deviation allowed from setpoint within which the Percent Level output will remain
constant. The default value is 5°F.
3.11 RELAY MENU
As the name implies, the RELAY MENU contains the options necessary to select the actions performed
by the System Start (SYS START), Fault Alarm (FLT ALARM) and Auxiliary (AUX) Relays in the BMS II.
SYS START TEMP
If an Outdoor Air Sensor is installed, this menu option is used to select the Outdoor Temperature below
which the System Start Relay is allowed to activate (close), provided that the SYS START OPTION
conditions specified below are satisfied. The percent level will always remain at 0% until the System Start
Relay is activated The System Start Relay will open if the Outdoor temperature is above the value set for
this option.
SYS START OPTION
The SYS START OPTION can be set to TEMP ONLY or TEMP AND LOAD. Selecting TEMP ONLY
means the System Start Relay will be active whenever the Outdoor Temperature falls below the System
Start Temperature (SYS START TEMP).
Selecting TEMP AND LOAD will cause the System Start Relay to activate if the Outdoor Temperature
falls below the System Start Temperature and the Percent of Load (Operating Menu) is at or above the
LOAD START PCT (Calibration Menu). It will deactivate (open) the System Start Relay when the Percent
of Load goes below the LOAD START PCT.
SYS START INTLK
The SYS START INTLK selects the Interlock associated with the System Start Relay activation when
SYS INTLK CONFIG is set for START ENABLED. Available settings include, INTERLOCK 1 (default),
INTERLOCK 2, or INTERLOCK 1&2.
AUX RELAY OPEN
The AUX RELAY OPEN setting is the Percent Level output below which the AUX Relay will open if it was
closed due to the conditions described by the AUX RELAY CLOSE setting.
AUX RELAY CLOSE
This determines the condition for which the AUX relay will close. If 100% FIRE RATE is selected, the
AUX relay will close when all available boilers are firing at 100%. If 100% AND OFF (default) is selected,
it will close when all available boilers are firing at 100% as well as when no boilers are available and the
boiler plant is below setpoint. This relay can trigger emergency heat in the latter case.
3-13
OPERATION
FAULT ALRM RELAY
This setting tells the BMS II which faults should activate the fault alarm relay. The default is ALL
FAULTS. If NO INTERLOCK is selected, the Fault Alarm Relay will not activate when the interlocks are
opened, however the BMS II will still shut down all boilers. If INTERLOCK 2 is selected, the Fault Alarm
Relay will only activate when Interlock 2 is opened and not when Interlock 1 is opened. Similarly, when
INTERLOCK 1 is selected, the fault alarm relay will only activate when Interlock 1 is opened and not
when Interlock 2 is opened.
FAULT ALARM BLRS
This selection tells the BMS II whether to activate the fault alarm relay if a boiler connected to it is faulted.
FAULT ALRM CLEAR
Selecting MANUAL will latch the fault alarm relay if a fault condition occurs and goes away. The CLEAR
key must be pushed to deactivate the relay. If set to AUTOMATIC, the fault relay will open when the fault
condition goes away.
3.12 CALIBRATION MENU
NOTE
The Level 2 Password (6817) must be entered in order to view or
change options in the Calibration Menu.
The options contained in this Menu should only be used by factory-trained personnel, since it contains
options that could adversely affect system operation if incorrectly set.
HDR SENS OFFSET
This option sets the offset temperature value that is added to the displayed Header Sensor temperature in
the event that it is different from a trusted reference Header temperature reading and needs calibration.
Be sure the Header Sensor is properly installed before adjusting this offset value. The allowable offset
range is ±10°F
OUTD SENS OFFSET
This offset value is added to the Outdoor Sensor temperature displayed in case it is different from a
trusted reference outdoor temperature reading and needs calibration. Be sure the Outdoor sensor is
properly installed before adjusting this value. The allowable offset range is ±10°F.
4 - 20 MA OFFSET
This offset value is added to the 4 – 20 mA Remote signal input to the BMS II in the event that calibration
is needed. The allowable offset range is ±1.0 mA.
RETN SENS OFFSET
This offset value is added to the Return Sensor temperature displayed in case it is different from a trusted
reference return temperature reading and needs calibration. Be sure the Return Sensor is properly
installed before adjusting this value. The allowable offset range is ±10°F
RAMP UP %/MIN
This sets the maximum Percent Level ramp up rate for the BMS II. The Percent Level output will follow
the PID output if it is slower than this rate. The default setting is 20% per minute.
3-14
OPERATION
RAMP DOWN %/MIN
This sets the maximum Percent Level ramp down rate for the BMS II. The Percent Level output will follow
the PID output if it is slower than this rate. The default setting is 200% per minute.
LOAD START PCT
When the SYS START OPTION is set to TEMP AND LOAD, this parameter determines the percent of
load value at or above which the “load” portion of the parameter is true. This value cannot exceed the
BLR START LEVEL set in the Configuration Menu The default setting is 1%.
LOAD STOP PCT
When the SYS START OPTION is set to TEMP AND LOAD, this parameter determines the percent of
load value at or below which the “load” portion of the parameter is false. This value cannot exceed the
BLR STOP LEVEL set in the Configuration Menu nor the LOAD START PCT. The default is 0%.
RESET DEFAULTS
This option is used to set the BMS II to its factory default values. Make sure that you want to reset all
options before activating.
3.13 BMS II QUICK-START GUIDE
NOTE
The “Quick Start” procedures in paragraph 3.13 assume that the
user fully understands the BMS II menu structure and is able to
navigate through these menus to display and change menu
options. Refer to paragraph 3.3 for menus and menu processing
procedures.
The following procedure assumes that you are programming a new BMS II that has the “Factory Default”
settings currently stored in memory.
If you wish to restore a “Field-Programmed” BMS II to the “Factory Default” values, go to the
CALIBRATION MENU and select the RESET DEFAULTS option. ALL SETTINGS, EXCEPT TIME AND
DATE, WILL RETURN TO THEIR FACTOR DEFAULTS.
This paragraph provides the instructions to quickly start up and operate the BMS II in some of the most
commonly used modes. The ranges and default values of the Menu Options used in the following
instructions are summarized in Appendix A.
3-15
OPERATION
CONSTANT SETPT MODE (Default)
MENU & OPTION
ACTION
1. SETUP MENU
ENTER PASSWORD
2. RS485 MENU
Enter 159
Enter this menu if there are more than 2 boilers (default),
otherwise go to step 3
NUMBER NETW BOILERS
This setting is preset to 2. If more than 2 Boilers (default), enter
number (03, 04, etc)
NETW BOILER 01
ADDRESS= 001
Address 001 and 002 are preset. Enter other Network Addresses if
required (003, 004, 005, etc.)
3. FIELD ADJUST MENU
INTERNAL SETPT
4. CONFIGURATION MENU
If Setpt is other than 160°F (default), enter this menu; otherwise go
to step 4
Enter Setpoint temperature
If BLR START LEVEL=20% & BLR STOP LEVEL=16%, skip this
menu.
BLR START LEVEL
Enter Boiler Start Level Percent (default = 20%). See Appendix I.
BLR STOP LEVEL
Enter Boiler Stop Level Percent (default = 16%). See Appendix I.
REMOTE SETPT MODE
Perform the procedure described for the CONSTANT SETPT MODE and then continue with the steps
described below:
MENU & OPTION
ACTION
1. FIELD ADJUST MENU
HEADER SET MODE
Set to REMOTE SETPT
HDR HIGH LIMIT
Enter the maximum temperature for the Remote Setpoint input
(this will be the temperature equivalent to a 20 mA input) Default
= 200°F
HDR LOW LIMIT
Enter the minimum temperature for the Remote Setpoint input
(this will be the temperature equivalent to a 4 mA input) Default =
40°F
REMOTE SIGNAL
Select 4-20 Ma (default) or MODBUS
2. CONFIGURATION MENU
FAIL SAFE MODE
3-16
Set to CONSTANT SETPT if you want to maintain a Constant
Setpoint temperature in the event that the Remote signal is lost.
(Default = SHUTDOWN)
OPERATION
OUTDOOR RESET MODE
Perform the procedure described for the CONSTANT SETPT MODE and then continue with the steps
described below:
MENU & OPTION
ACTION
1. FIELDADJUST MENU
HEADER SET MODE
RESET RATIO
BLDG REF TEMP
Set to OUTDOOR RESET
Enter a different value, if required (default = 1.2). Refer to
Appendix C.
Enter
the
desired
Building
Reference
Default = 70°F (Refer to Appendix C).
Temperature.
2. CONFIGURATION MENU
FAIL SAFE MODE
Set to CONSTANT SETPT if you want to maintain a Constant
Setpointt temperature in the event that the Outdoor Sensor signal
is lost. (Default = SHUTDOWN)
3. RELAY MENU
SYS START TEMP
Enter the outdoor temperature below which the system will be
activated.
After completing the “Quick Start” procedure for any of the modes described above, check to ensure that
the “ON” LED is lit. If it is not, press the ON/OFF key to activate the BMS II.
For further programming details, refer to Chapter 4.
3-17
PROGRAMMING BMS II
CHAPTER 4 - PROGRAMMING BMS II OPERATING MODES
4.1 INTRODUCTION
Prior to programming, the BMS-II must be mounted and all required wiring completed. In addition, all
connections should be checked for accuracy. Once these items are completed, the BMS-II is ready to be
programmed for the desired mode of operation for the boiler plant. The steps for programming will vary
somewhat, depending on whether the Outdoor Reset, Remote Setpoint or Constant Setpoint operating
mode is selected.
NOTE
The Level 1 Password (159) must be entered prior to
programming the BMS II for operation in any of the modes
described in paragraphs 4.2 through 4.4. Refer to Chapter 3 for
instructions on password entry and basic menu processing
procedures.
4.2 OUTDOOR RESET MODE
The Outdoor Reset mode operates based on outside air temperature. In this mode, the header supply
water temperature will vary up or down in accordance with outside air temperature. Therefore, in order to
set up and operate in this mode, an outdoor air sensor MUST be installed. This mode requires entries to
be made in the Field Adjust Menu and Relay Menu for the following options:
•
FIELD ADJUST MENU
o HEADER SET MODE
o RESET RATIO
o BLDG REF TEMP
•
CONFIGURATION MENU
o BOILER OPERATING MODE
•
RELAY MENU
o SYSTEM START RELAY TEMP
The programming set-up instructions for the above menu options are provided in paragraphs which
follow.
Selecting Outdoor Reset Mode
The Outdoor Reset Mode is selected using the Header Set Mode option in the Field Adjust Menu as
follows:
1. Using the keypad on the BMS II, press the MENU key, until FIELD ADJUST MENU appears in the
display.
2. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until HEADER SET MODE is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Header Set Mode (CONSTANT SETPOINT, OUTDOOR RESET or REMOTE SETPOINT).
3. If OUTDOOR RESET is not displayed in the second line of the display, press the CHANGE key. The
VFD display will switch to a reverse video format indicating that a change is in process.
4-1
PROGRAMMING BMS II
4. Using the ▲ or ▼ arrow key, select OUTDOOR RESET.
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory. While still in the Field Adjust Menu,
proceed to the next paragraph and continue the set-up procedure.
Determining Reset Schedule
There are two variables that must be considered when determining Reset Schedule: Reset Ratio and
Building Reference Temperature. There are two methods for determining the Reset Ratio. The first
method utilizes the Reset Ratio Charts provided in Appendix C. This method is suitable for most
installations. However, if a special Reset Schedule is desired for reheat or other purposes, the calculation
method must be used. When using this method, both Reset Ratio and Building reference Temperature
must be calculated. Refer to Appendix C for further instructions concerning both of these methods.
Once the Reset Ratio and Building Reference Temperature have been determined, proceed to the next
paragraph and enter these options.
Entering Reset Ratio And Building Reference Temperature
The Reset Ratio and Building Reference Temperature (BLDG REF TEMP) are also entered using options
contained in the Field Adjust Menu. These parameters are entered as follows:
1. To enter the required Reset Ratio, scroll through the Field Adjust Menu and select RESET RATIO.
2. If the desired ratio is not displayed, press the CHANGE key. The display will switch to a reverse video
format indicating that a change is in process.
3. Select the required Reset Ratio using the ▲ or ▼ arrow key.
4. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
5. Next, scroll through the Field Adjust Menu and select BLDG REF TEMP.
6. If the desired BLDG REF TEMP is not displayed, press the CHANGE key. The display will switch to a
reverse video format.
7. Select the required BLDG REF TEMP using the ▲ or ▼ arrow key.
8. Press the ENTER key to store the change. The reverse video display will revert to the normal VFD
display format.
9. This completes the required entries in the Field Adjust Menu. Proceed to the next paragraph and
select the Boiler Operating Mode.
Selecting Boiler Operating Mode
The Boiler Plant can be set for either Parallel or Sequential Mode operation. The Boiler Operating Mode is
selected in the Configuration Menu as follows:
1. Using the keypad on the BMS II, press the MENU key, until CONFIGURATION MENU appears in the
display.
2. On the keypad, press the ▲ arrow key once. BOILER OP MODE will be displayed in the first line of
the VFD display. The second line of the display will show the currently selected Boiler Operating
Mode. (SEQUENTIAL MODE or PARALLEL MODE). The default setting is SEQUENTIAL MODE.
3. If the desired Operating Mode is not displayed in the second line of the display, press the CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in process.
4. Using the ▲ or ▼ arrow key, toggle the display to the desired setting.
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been stored in memory.
4-2
PROGRAMMING BMS II
Entering System Start Temperature
In order to complete the required set-up procedures for the Outdoor Reset Mode, the System Start
Temperature must be entered. The System Start Temperature is the outside air temperature at which the
boiler plant begins to operate. The factory default value for the System Start Temperature (SYS START
TEMP) is 70°F. However, temperatures from 32°F to 120°F can be selected using the ▲ and ▼ arrow
keys on the BMS II keypad. Proceed as follows:
1. Press the MENU key until RELAY MENU appears in the display.
2. Press the ▲ arrow key once. SYS START TEMP will be displayed along with the current setting for
the System Start Temperature.
3. Press the CHANGE key to change the displayed temperature. The display will switch to a reverse
video format.
4. Select the desired System Start temperature using the ▲ or ▼ arrow key.
5. Press the ENTER key to store the changed temperature. The reverse video display will revert to the
normal VFD display format.
6. The BMS II is now programmed for operation in the Outdoor Reset Mode.
4.3 REMOTE SETPOINT MODE
In order to set up the BMS II to operate in this mode, a Modbus communication line or a 4-to-20 mA input
line with a floating ground from an Energy Management System (EMS) is required. In addition, a BMS
header sensor is required. This mode may be used with or without an outdoor air temperature sensor
installed. Entries in this mode are required for the following items:
•
FIELD ADJUST MENU
o HEADER SET MODE
o HEADER HIGH LIMIT
o HEADER LOW LIMIT
o REMOTE SIGNAL
•
CONFIGURATION MENU
o BOILER OPERATING MODE
Selecting Remote Setpoint Mode
The Remote Setpoint Mode is selected using the Header Set Mode option in the Field Adjust Menu as
follows:
1. Using the keypad on the BMS II, press the MENU key, until FIELD ADJUST MENU appears in the
display.
2. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until HEADER SET MODE is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Header Set Mode (CONSTANT SETPOINT, OUTDOOR RESET or REMOTE SETPOINT).
3. If REMOTE SETPOINT is not displayed in the second line of the display, press the CHANGE key.
The VFD display will switch to a reverse video format indicating that a change is in process.
4. Using the ▲ or ▼ arrow key, select REMOTE SETPOINT.
4-3
PROGRAMMING BMS II
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory. With the BMS II still in the FIELD
ADJUST MENU, proceed to the next paragraph and continue the set-up procedure.
Entering Header High Limit And Low Limit Temperatures
The Header High Limit and Header Low Limit are also selected using options in the Field Adjust Menu as
follows:
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until HDR HIGH LIMIT is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Header High Limit temperature (default = 200°F).
2. If the required HDR HIGH LIMIT is not displayed in the second line of the display, press the CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in process.
3. Using the ▲ or ▼ arrow key, select required HDR HIGH LIMIT temperature.
4. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
5. Next, scroll through the FIELD ADJUST MENU until HDR LOW LIMIT is displayed in the first line of
the VFD display. The second line of the display will show the currently selected Header Low Limit
temperature (default = 040°F).
6. If the required HDR LOW LIMIT is not displayed, press the CHANGE key.
7. Using the ▲ or ▼ arrow key, select required HDR LOW LIMIT temperature. Press the ENTER key to
store the change.
8. With the BMS II still in the FIELD ADJUST MENU, proceed to the next paragraph and continue the
set-up procedure.
NOTE
If the Remote Signal is set to 4 – 20 mA, the HDR HIGH LIMIT
temperature defines the 20 mA value and the HDR LOW LIMIT
temperature defines the 4 mA value.
Selecting Remote Signal Type
The boilers connected to the BMS II can be controlled by either a 4-to-20 mA signal or a Modbus signal
from an Energy Management System (EMS). The Remote Signal type is selected in the Field Adjust
Menu as follows:
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until REMOTE SIGNAL is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Remote Signal (4-20 mA or MODBUS). The default is 4-20 mA.
2. If the required REMOTE SIGNAL is not displayed in the second line of the display, press the
CHANGE key. The VFD display will switch to a reverse video format indicating that a change is in
process.
3. Using the ▲ or ▼ arrow key, toggle the display to the required signal type.
4. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
5. This completes all required entries in the Field Adjust Menu. To complete Remote Setpoint Mode
setup, select the Boiler Operating Mode option as described below.
4-4
PROGRAMMING BMS II
Selecting Boiler Operating Mode
The Boiler Plant can be set for either Parallel or Sequential Mode operation. The Boiler Operating Mode is
selected in the Configuration Menu as follows:
1. Using the keypad on the BMS II, press the MENU key, until CONFIGURATION MENU appears in the
display.
2. On the keypad, press the ▲ arrow key once. BOILER OP MODE will be displayed in the first line of
the VFD display. The second line of the display will show the currently selected Boiler Operating
Mode. (SEQUENTIAL MODE or PARALLEL MODE). The default setting is SEQUENTIAL MODE.
3. If the desired Operating Mode is not displayed in the second line of the display, press the CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in process.
4. Using the ▲ or ▼ arrow key, toggle the display to the desired setting.
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
6. The BMS II is now programmed for operation in the Remote Setpoint Mode.
4.4 CONSTANT SETPOINT MODE
In the Constant Setpoint Mode of operation, only a header sensor is required. Entries in this mode are
required for the following items:
•
FIELD ADJUST MENU
o HEADER SET MODE
o INTERNAL SETPOINT
•
CONFIGURATION MENU
o BOILER OPERATING MODE
Selecting Constant Setpoint Mode
The Constant Setpoint Mode is selected using the Header Set Mode option in the Field Adjust Menu as
follows:
1. Using the keypad on the BMS II, press the MENU key, until FIELD ADJUST MENU appears in the
display.
2. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until HEADER SET MODE is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Header Set Mode (CONSTANT SETPOINT, OUTDOOR RESET or REMOTE SETPOINT).
3. If CONSTANT SETPOINT is not displayed in the second line of the display, press the CHANGE key.
The VFD display will switch to a reverse video format indicating that a change is in process.
4. Using the ▲ or ▼ arrow key, select CONSTANT SETPOINT.
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory. With the BMS II still in the FIELD
ADJUST MENU, proceed to next paragraph to select the Internal Setpoint Temperature.
4-5
PROGRAMMING BMS II
Selecting Internal Setpoint Temperature
The Internal Setpoint Temperature is selected using in the Field Adjust Menu as follows:
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the menu until INTERNAL SETPT is
displayed in the first line of the VFD display. The second line of the display will show the currently
selected Internal Setpoint temperature (default = 160°F). If the required INTERNAL SETPT is not
displayed in the second line of the display, press the CHANGE key. The VFD display will switch to a
reverse video format indicating that a change is in process.
2. Using the ▲ or ▼ arrow key, select required INTERNAL SETPT temperature.
3. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
4. This completes the required entries in the Field Adjust Menu. To complete the Constant Setpoint
Mode set-up, select the Boiler Operating Mode as described below.
Selecting Boiler Operating Mode
The Boiler Plant can be set for either Parallel or Sequential Mode operation. The Boiler Operating Mode is
selected in the Configuration Menu as follows:
1. Using the keypad on the BMS II, press the MENU key, until CONFIGURATION MENU appears in the
display.
2. On the keypad, press the ▲ arrow key once. BOILER OP MODE will be displayed in the first line of
the VFD display. The second line of the display will show the currently selected Boiler Operating
Mode. (SEQUENTIAL MODE or PARALLEL MODE). The default setting is SEQUENTIAL MODE.
3. If the desired Operating Mode is not displayed in the second line of the display, press the CHANGE
key. The VFD display will switch to a reverse video format indicating that a change is in process.
4. Using the ▲ or ▼ arrow key, toggle the display to the desired setting.
5. Press the ENTER key to store the change. The reverse video display will revert to the normal display
format indicating that the change has been store in memory.
6. The BMS II is now programmed for operation in the Constant Setpoint Mode.
4.5 “TEMP AND LOAD” OPTION
The boiler plant, and the System Start Relay, can be programmed to start based on either, or both, an
outdoor temperature and/or load demand criteria. When the SYS START OPTION is set to TEMP ONLY,
the outdoor temperature is the only criteria used to activate the system. In this case the system, and the
System Start Relay, will activate when the outdoor temperature falls below the SYS START TEMP
setting. If no outdoor sensor is installed, the system (and the System Start Relay) will always be activated
in this case. The system will shut down and the System Start Relay deactivated when the outdoor
temperature rises above the SYS START TEMP setting.
If the SYS START OPTION is set to TEMP AND LOAD, the system (and the System Start Relay) will
start when the outdoor temperature is below the SYS START TEMP setting and the load demand
(PERCENT OF LOAD) is at or above the LOAD START PCT (in Calibration Menu). The PERCENT OF
LOAD display in the Operating Menu will show 0% until both of these criteria are satisfied. The system will
shut down and the System Start Relay deactivated if either the outdoor temperature rises above the SYS
START TEMP or the PERCENT OF LOAD falls below the LOAD STOP PCT. If no outdoor sensor is
installed, the system (and the System Start Relay) will activate when the PERCENT OF LOAD is at or
above the LOAD START PCT. The system will shut down when the PERCENT OF LOAD falls below the
LOAD STOP PCT.
4-6
PROGRAMMING BMS II
4.6 “START ENABLED” OPTION
The BMS II can be used to turn on and prove a device such as a fresh air damper, gas booster or the flow
of a local pump before ramping up the output. With SYS INTLK CONFIG (Configuration Menu) set to
START ENABLED, the BMS II will allow 30 seconds after it activates the System Start Relay before
proving the selected interlock (such as SYS START INTLK) and ramping up the output. The System Start
Relay can activate the device and the dry-contact proving switch of the device, or devices can be wired to
one or both interlocks.
4.7 SYSTEM INITIALIZATION AND POLLING
In order for the BMS II to recognize the boilers connected to the RS485 Network, Initialization and polling
must be accomplished by performing the following steps:
1. Set the ON/OFF switch on each boiler control panel to ON.
2. Turn on the BMS II by pressing the ON key. The BMS will automatically poll (recognize) each boiler at
prescribed intervals.
3. Check the yellow REMOTE (REM) LED on each boiler control panel to ensure it is ON. This indicates
that the boiler is now being controlled by the BMS II.
4. If any of the boiler REMOTE LEDs are off, check to ensure that:
(a) Boiler AC power is not turned off
(b) Boiler is not shut down due to a fault.
(c) The RS485 Network connection is not broken.
The BMS will continuously poll the boilers at prescribed intervals. Therefore, if a boiler is placed off-line
and then placed back on-line, it will again be recognized by the BMS during the next polling cycle.
4.8 TESTING THE SYSTEM
The following procedure places a load on the system and will begin firing the boilers. At this point it is very
important to make sure the system pumps are running.
After system has been initialized as described in paragraph 4.5, proceed as follows:
IMPORTANT
Prior to performing these tests, view and record the PRESENT
settings stored in the BMS II for HEADER SET MODE and
INTERNAL SETPT. These settings are located in the Field Adjust
Menu and MUST be restored to these values upon completion of
the following tests.
1. Turn off the BMS II by pressing the ON/OFF key. The ON LED will turn off.
2. Using the MENU key, select the FIELD ADJUST MENU and scroll to the HEADER SET MODE
option, The second line of the display will show the current setting stored in memory (CONSTANT
SETPT, OUTDOOR RESET,or REMOTE SETPT).
3. If CONSTANT SETPT is not currently selected, press the CHANGE key. Select the CONSTANT
SETPT mode using the ▲ or ▼ arrow key. When selected, store the change by pressing the ENTER
key.
4-7
PROGRAMMING BMS II
4. Next, scroll to the INTERNAL SETPT menu option. The second line of the display will show the
current Internal Setpoint temperature (°F) stored in memory.
5. Press the CHANGE key. Set the INTERNAL SETPT temperature to 180°F using the ▲ and ▼ arrow
keys. When set, store the change by pressing the ENTER key.
6. Turn on the BMS II by pressing the ON/OFF key. The ON indicator will light and the boiler plant will
start to operate.
7. Using the MENU key on the BMS II, scroll to the OPERATING MENU. The first line of the display will
show the Header Temperature. The second line of the display will show the Firing Rate % and the
number of Units (boilers) firing.
8. When all boilers have reached at least a 55% firing rate, any boilers that have not started have not
been identified by the BMS II.
9. Remember that in the Sequential mode, the BMS II turns boilers on in 30-second intervals. Therefore,
in a 6-boiler plant, with five boilers operating at 55% capacity, a boiler that has not started after 3
minutes has not been recognized. In parallel mode, all boilers will start at the same time.
10. This completes the System Test. Return the HEADER SET MODE and INTERNAL SETPT settings to
their previously stored values.
11. If the System Test is not completed successfully, refer to the troubleshooting procedures in this
manual (Chapter 5) and the applicable O & M Manuals for the boilers included in the boiler plant. If
the problem can still not be resolved, contact AERCO at 1-800-526-0288.
CAUTION
Monitor the HDR TEMP reading to ensure it is not ramping up too
high. If it is, press the ON/OFF key of the BMS II to shut down the
boilers. Remember that the boiler outlet temperature may be
higher than the BMS II header temperature.
4-8
TROUBLESHOOTING
CHAPTER 5 - TROUBLESHOOTING
5.1 FAULT MESSAGES & COMMON PROBLEMS
When a fault occurs in the boiler plant, the BMS II flashes fault messages at 2-second intervals and the
Fault Alarm (FLT ALARM) relay contacts are closed. The red FAULT indicator on the front panel will also
light. To cancel the alarm (open relay contacts), press the CLEAR key on the BMS II keypad. The FAULT
indicator will turn off, however the fault message will continue to be displayed.
The fault messages shown in Table 5-1 can appear when the BMS II is operating in any of the three basic
modes (Constant Setpoint, Outdoor Reset, or Remote Setpoint).
Table 5-2 lists some common problems that may occur during BMS II operation and provide Probable
Causes and Corrective Action for each listed Probable Cause.
Table 5-1. Fault Messages
Fault Message
OUTSIDE AIR TEMP
NOT CONNECTED
Description & Possible cause
• Open outside air temp. sensor: resistance greater than 240K ohms (less
than -40°F)
Shorted outside air temp. sensor: resistance less than 1K ohms (greater
than 200°F)
No sensor connected
Note: Displays only in Remote Setpt and Constant
Setpoint modes. I
OUTSIDE AIR TEMP
SENSOR ERROR
When in Outdoor Reset Mode, the outside air temperature sensor is either
open, shorted, or not connected.
HEADER SENSOR
ERROR
• Open header sensor: resistance greater than 240K ohms (less than 40°F)
Shorted header sensor: resistance less than 240 ohms (over 300°F)
Sensor not installed
INTERLOCK 1 ERROR
Interlock 1 is open
INTERLOCK 2 ERROR
Interlock 2 is open
5-1
TROUBLESHOOTING
Table 5-1. Fault Messages – Continued
Fault Message
Description & Possible cause
CURRENT LOOP
ERROR
The 4-to-20-mA remote input signal has dropped below 3 mA, or the signal is
not present at the BMS II.
FAIL SAFE MODE
ACTIVATED
This message indicates that the BMS II is operating in the Fail Safe (Constant
Setpoint) mode.due to sensor loss or signal loss.
MODBUS TIMEOUT
ERROR
Displayed during Modbus Remote Setpoint operation when the BMS II is
functioning as a Slave to an EMS Master. Error indicates that the Network
Timeout has expired.
NETWORK DISABLED
MODBUS LISTEN
Displayed during Modbus operation when the “FORCE LISTEN ONLY”
Modbus diagnostic command is sent to the BMS II Slave by the controlling
Master, thereby disabling normal Modbus Network communication. It
indicates that the BMS II is listening for the “RESTART COMMUNICATIONS
OPTIONS” diagnostic command required to restart normal Modbus
communication. The BMS II will operate in the Fail Safe mode during this
period.
5-2
TROUBLESHOOTING
Table 5-2 Common Problems
Problem
Boiler plant not started
by BMS II
Possible Causes
• BMS II not turned ON.
Solution
• Press ON/OFF button and ensure that
the LED lights
• Outside air temperature higher • Check outside air temperature and
than system’s start
system start temperature. System start
temperature
temperature should be higher than
outside air temperature for boilers to
run. Check SYS START TEMP setting
in RELAY MENU (paragraph 3.11).
BMK or KC Boiler with
C-More Control Box not
being recognized by
BMS II.
• Configuration not correct.
• Check SYS START OPTION in RELAY
MENU. Load START PCT and STOP
PCT in CALIBRATION MENU
paragraphs 3.11, 3.12).
• System must be initialized
• Initialize and test system (para. 4.7 and
4.8).
• Wiring between boilers and
BMS II not correct
• Check wiring. (See Chapter 2 &
Appendix E)
• C-More Box not configured
correctly.
• Ensure that the C-More Boiler is
configured for Direct Drive (see
Chapter 5 of correct BMK or KC1000
O & M Manual for required menu
settings).
• C-More Box not enabled. Front • Check ON/OFF switch.
panel switch is off.
Modulex Boiler with
BCM Control not being
recognized by BMS II.
BMS II controlling
boilers. EMS can see
BMS II, but cannot see
boilers.
• Incorrect wiring between BMS
II and Boiler.
• See Chapter 2 for correct wiring
connections
• Alarm condition present on CMore Control Box.
• Clear alarm condition.
• BCM not configured correctly.
• Ensure that last boiler has termination
activated (see GF-114, GF-115-C).
• 3-position switch on boiler not
in correct position.
• Ensure that the 3-position switch is in
the 0 (zero) position.
• BCM Control is in alarm.
• Clear alarm condition.
• Incorrect wiring between BMS
II and BCM Control.
• Refer to Chapter 2 for correct wiring
connections.
• MODBUS PASS THRU not
enabled in BMS II.
• See RS232 MENU (paragraph 3.6).
• EMS communication response
time too short.
• Allow at least 2 seconds to receive
boiler information.
5-3
TROUBLESHOOTING
Table 5-2 Common Problems - Continued
Problem
Possible Causes
Solution
• Incorrect address
• See RS232 MENU (paragraph 3.6).
• Incorrect Baud Rate
• See RS232 MENU (paragraph 3.6).
• Faulty wiring between EMS
and BMS II.
• See Chapter 2. Check wiring polarity
and connections.
• RAMP UP or RAMP DOWN
time needs adjustment.
• Refer to CALIBRATION MENU
(paragraph 3.12) and check the RAMP
UP %/MIN or RAMP DOWN %/MIN
• PID requires adjustment.
• Refer to TUNING MENU (para. 3.10).
• Deadband requires
adjustment
• Check HDR TEMP DEADBND in
TUNING MENU (paragraph 3.10).
Default = 5°.
• PID requires adjustment
• See TUNING MENU (paragraph 3.10).
Need to restore Factory
Default Settings.
• Too many setting changes.
• Go to RESET DEFAULTS option in
CALIBRATION MENU (paragraph
3.12)
Boilers over-shooting
setpoint or tripping
aquastat
• Header sensor not installed
correctly
• Check header sensor connections and
installation.
• PID setting require adjustment
• Adjust PID settingsin TUNING MENU
(paragraph 3.10).
• Adjustable aquastat set too
low
• If aquastat is set lower than 200°F,
reset it to 220°F.
• System pumps are shut down
and not controlled by or
interlocked with the BMS II
• If system pumps are shut down, check
start and stop temperatures on energy
management system. They should
correspond to those set in the BMS II.
In addition, interlock wiring can be run
between the BMS II and energy
management system to disable the
BMS II pumps when pumps are not
running.
• BMS II or boilers not properly
configured for Modbus
communication.
• Refer to Modbus Communication
Manual GF-114 for C-More control or
GF-115-C for BCM control on Modulex
boilers. Check all wiring connections
and software menu settings.
• Bias and/or termination not
activated.
• Activate termination in last boiler.
Activate bias on BMS II for BCM
control or in last C-More control.
EMS cannot see BMSII
Boiler RAMP UP or
RAMP DOWN too slow
or too fast
HEADER TEMPERATURE not reaching
Setpoint
Modbus Network faults
encountered. Boiler
plant not operating
5-4
APPENDIX A
APPENDIX A _____________________________
BMS II MENUS
AVAILABLE CHOICES OR LIMITS
MENU LEVEL & OPTION
MINIMUM
MAXIMUM
DEFAULT
HEADER TEMP
40
280
N/A
HEADER SET TEMP
40
220
N/A
OUTSIDE AIR TEMP
-60
180
N/A
PERCENT OF LOAD
0
100
N/A
OPERATING MENU
I/O STATUS
Bit 0 = AUX Relay
Bit 1 = Fault Relay
Bit 2 = Sys Start Relay
Bit 3 = Empty
Bit 4 = Setback
Bit 5 = Interlock 2
Bit 6 = Interlock 1
Bit 7 = Empty
RETURN TEMP
40
280
N/A
SETUP MENU
ENTER PASSWORD
(Level 1 = 159)
0
32000
0
(Level 2 = 6817)
SET MONTH
01
12
SET DATE
01
31
SET YEAR
00
99
SET HOUR
00
23
SET MINUTE
00
59
SET DAY OF WEEK
SUNDAY TO SATURDAY
RS232 MENU
RS232 MODE
MODBUS SLAVE,
NORMAL
MODBUS SLAVE
2400, 4800,
9600, 19200
9600
RS232 BAUDRATE
MODBUS ADDRESS
128
247
128
NETWORK TIMEOUT (Seconds)
005
240
060
MODBUS PASS THRU
DISABLED,
ENABLED
DISABLED
A-1
APPENDIX A
APPENDIX A _____________________________
BMS II MENUS - Continued
AVAILABLE CHOICES OR LIMITS
MENU LEVEL & OPTION
MINIMUM
MAXIMUM
DEFAULT
RS485 MENU
RS485 BAUDRATE
2400, 4800,
9600, 19200
9600
MIN SLAVE ADDR
000
127
000
MIN SLAVE ADDR
000
127
000
NUMBER NETW BLRS
00
32
02
MODBUS CNTL TYPE
ROUND ROBIN,
BROADCAST
ROUND ROBIN
NETW BOILER 01
ADDRESS =
000
127
001
NETW BOILER 02
ADDRESS =
000
127
002
NETW BOILER 03
ADDRESS =
000
127
000
000
127
000
Etc., Up To:
NETW BOILER 32
ADDRESS =
FIELD ADJUST MENU
HEADER SET MODE
CONSTANT SETPOINT,
OUTDOOR RESET,
REMOTE SETPOINT
CONSTANT
SETPOINT
HDR HIGH LIMIT
040°F
220°F
200°F
HDR LOW LIMIT
040°F
220°F
040°F
INTERNAL SETPT
040°F
220°F
160°F
0.3
3.0
1.2
40°F
220°F
70°F
RESET RATIO
(Displayed Only if
HDR SET MODE =
OUTDOOR RESET)
BLDG REF TEMP
(Displayed Only If
HDR SET MODE =
OUTDOOR RESET)
REMOTE SIGNAL
(Displayed Only If HDR SET MODE
= REMOTE SETPT
A-2
4 – 20 mA,
MODBUS
4 - 20 mA
APPENDIX A
APPENDIX A _____________________________
BMS II MENUS - Continued
AVAILABLE CHOICES OR LIMITS
MENU LEVEL & OPTION
MINIMUM
MAXIMUM
DEFAULT
FIELD ADJUST MENU – Cont.
OFFSET ENABLE
SUN
OFFS TEMP
OFF,
ON
OFF
-50.0°F
50.0°F
00.0
SUN ON HOUR
00
23
00
SUN ON MINUTE
00
59
00
SUN OFF HOUR
00
23
00
SUN OFF MINUTE
00
59
00
00
59
00
Etc., Up To:
SAT OFF MINUTE
CONFIGURATION MENU
BOILER OP MODE
SYS INTLK CONFIG
SEQUENTIAL MODE,
PARALLEL MODE
SEQUENTIAL
MODE
START ENABLED,
ALWAYS ENABLED
START ENABLED
BLR START LEVEL
001%
100%
020%
BLR STOP LEVEL
001%
040%
016%
MAX POWER INPUT
050%
100%
100%
FAIL SAFE MODE
SHUTDOWN,
CONSTANT SETPOINT
SHUTDOWN
TUNING MENU
PROPORTIONAL BND
INTEGRAL GAIN
DERIVATIVE GAIN
HDR TEMP DEADBND
005°F
120°F
070°F
0.00 REP/MIN
9.99 REP/MIN
0.15 REP/MIN
-2.00 MIN.
2.00 MIN.
0.15 MIN.
001°F
015°F
005°F
A-3
APPENDIX A
APPENDIX A _____________________________
BMS II MENUS - Continued
AVAILABLE CHOICES OR LIMITS
MENU LEVEL & OPTION
MINIMUM
MAXIMUM
DEFAULT
032°F
120°F
070°F
RELAY MENU
SYS START TEMP
SYS START OPTION
TEMP ONLY,
TEMP AND LOAD
TEMP ONLY
SYS START INTLK
DISABLED
INTERLOCK 1
INTERLOCK 2
INTERELOCK 1&2
INTERLOCK 1
AUX RELAY OPEN
000%
099%
045%
AUX RELAY CLOSE
100% FIRE RATE,
100% AND OFF
100% AND OFF
FAULT ALRM RELAY
ALL FAULTS,
NO INTERLOCK,
INTERLOCK 2,
INTERLOCK 1
ALL FAULTS
FAULT ALARM BLRS
NO BLR FAULTS,
ALL BLR FAULTS
NO BLR FAULTS
FAULT ALRM CLEAR
AUTOMATIC,
MANUAL RESET
AUTOMATIC
CALIBRATION MENU
HDR SENS OFFSET
-10.0°
10.0°
00.0°
OUTD SENS OFFSET
-10.0°
10.0°
00.0°
4 – 20 MA OFFSET
-10.0
10.0
00.0
RET SENS OFFSET
-10.0°
10.0°
00.0
RAMP UP %/MIN
000
300
020
RAMP DOWN %/MIN
000
300
200
LOAD START PCT
000
100
1
LOAD STOP PCT
000
100
0
RESET DEFAULTS
NO,
YES (DONE If Selected)
A-4
NO
APPENDIX B
APPENDIX B _____________________________
STATUS AND FAULT MESSAGES
DISPLAY MESSAGES
DESCRIPTION
STATUS MESSAGES:
FAIL SAFE MODE
ACTIVATED
The system is running in the Constant Setpt mode due to loss of the
Remote signal or Outdoor Air sensor input.
NETWORK DISABLED
MODBUS LISTEN
“Forced Listen Only Mode” has been activated. All Modbus commands
except “restart Communications Options” will be ignored. The BMS II will
operate in the Fail Safe Mode.
OUTSIDE AIR TEMP
NOT CONNECTED
The Outdoor Air Temperature Sensor is not installed and connected.
RETURN TEMP
NOT INSTALLED
The Boiler Return Temperature Sensor is not installed.
FAULT MESSAGES
OUTDOOR SENSOR
ERROR
The Outdoor Air Temperature Sensor signal is out of range.
HEADER SENSOR
ERROR
The Header Temperature Sensor signal is out of range or disconnected.
RETURN SENSOR
ERROR
The Return Temperature Sensor signal is out of range.
INTERLOCK 1
ERROR
Interlock 1 input is open.
INTERLOCK 2
ERROR
Interlock 2 input is open.
4 – 20 mA INPUT
ERROR
The 4 – 20 mA Remote Input signal is lost.
MODBUS TIMEOUT
ERROR
The Modbus remote input information was not received within the
network timeout period.
B-1
APPENDIX C
APPENDIX C _____________________________
METHODS FOR DETERMINING RESET SCHEDULE AND OUTDOOR RESET RATIO
CHARTS
Using the Charts to Determine Reset
Schedule
Each table in this appendix provides data for a
specific building reference temperature. On the
vertical axis of each table are degree day
temperatures. These are the average lowest
temperatures likely to be encountered. The
engineer of your system should have this
number for your area. The reset ratio is shown
across the top. The data in the tables is header
temperature. To determine the reset ratio for
your installation, follow these steps:
• On the vertical axis, find the degree day for
your area.
• Select the temperature that should be
maintained in the header to maintain the
building at the desired temperature. The
system engineer should have this information.
• The proper reset ratio is the value found
above the two selected points. For example,
for a degree day of 15°F and a header
temperature of 125°F, the reset ratio is 1.4.
Determining Reset Schedule By Formula
There are two steps required to determine reset
schedule with this method. The first is to
determine the reset ratio by dividing the range of
outside temperatures by the range of header
temperatures:
Theader/Toutside = Reset Ratio.
Theader varies from 125 to 200°F (75° range),
then the reset ratio equals
75°F/105°F = 0.714.
Once the reset ratio is determined, this number
and the lowest or highest header temperature
and corresponding lowest or highest air
temperature, are input to the following equation
to yield the building reference temperature:
Theader RR (TR-TO)+TR, where:
-
RR is the reset ratio
TR is the building reference temperature
TO is the minimum outside temperature, and
Theader is the maximum heating system
Temperature desired at the minimum outside air
temperature.
So in this example:
Theader = 200°F
200°F = 0.714 [TR-(-10°F)] +TR
200°F = 1.714TR + 7.14°F
Solving for TR:
TR = (200°F-7.14°F)/1.714
TR = 192.86°F/1.714
TR = 112.5°F
Therefore, use a reset ratio of 0.7 (closest to
0.714) and a building reference temperature of
113 (closest to 112.5).
for example, If Toutside varies from -10 to +95°F
(105° range), and
C-1
APPENDIX C _____________________________
Table C-1. Header Temperature for a Building Reference Temperature of 50°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
-15°F
-20°F
50°F
53°F
56°F
59°F
62°F
65°F
68°F
71°F
74°F
77°F
80°F
83°F
86°F
89°F
92°F
50°F
54°F
58°F
62°F
66°F
70°F
74°F
78°F
82°F
86°F
90°F
94°F
98°F
102°F
106°F
50°F
55°F
60°F
65°F
70°F
75°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
50°F
56°F
62°F
68°F
74°F
80°F
86°F
92°F
98°F
104°F
110°F
116°F
122°F
128°F
134°F
50°F
57°F
64°F
71°F
78°F
85°F
92°F
99°F
106°F
113°F
120°F
127°F
134°F
141°F
148°F
50°F
58°F
66°F
74°F
82°F
90°F
98°F
106°F
114°F
122°F
130°F
138°F
146°F
154°F
162°F
50°F
59°F
68°F
77°F
86°F
95°F
104°F
113°F
122°F
131°F
140°F
149°F
158°F
167°F
176°F
50°F
60°F
70°F
80°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
50°F
60°F
72°F
83°F
94°F
105°F
116°F
127°F
138°F
149°F
160°F
171°F
182°F
193°F
204°F
50°F
62°F
74°F
86°F
98°F
110°F
122°F
134°F
146°F
158°F
170°F
182°F
194°F
206°F
218°F
Table C-2. Header Temperature for a Building Reference Temperatrure of 60°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
-15°F
-20°F
60°F
63°F
66°F
69°F
72°F
75°F
78°F
81°F
84°F
87°F
90°F
93°F
96°F
99°F
102°F
105°F
108°F
60°F
64°F
68°F
72°F
76°F
80°F
84°F
88°F
92°F
96°F
100°F
104°F
108°F
112°F
116°F
120°F
124°F
60°F
65°F
70°F
75°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
60°F
66°F
72°F
78°F
84°F
90°F
96°F
102°F
108°F
114°F
120°F
126°F
132°F
138°F
144°F
150°F
156°F
60°F
67°F
74°F
81°F
88°F
95°F
102°F
109°F
116°F
123°F
130°F
137°F
144°F
151°F
158°F
165°F
172°F
60°F
68°F
76°F
84°F
92°F
100°F
108°F
116°F
124°F
132°F
140°F
148°F
156°F
164°F
172°F
180°F
188°F
60°F
69°F
78°F
87°F
96°F
105°F
114°F
123°F
132°F
141°F
150°F
159°F
168°F
177°F
186°F
195°F
204°F
60°F
70°F
80°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
200°F
210°F
60°F
71°F
82°F
93°F
104°F
115°F
126°F
137°F
148°F
159°F
170°F
181°F
192°F
203°F
214°F
60°F
72°F
84°F
96°F
108°F
120°F
132°F
144°F
156°F
168°F
180°F
192°F
204°F
216°F
C-2
APPENDIX C
APPENDIX C _____________________________
Table C-3. Header Temperature for a Building Reference Temperature of 65°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
65°F
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
-15°F
-20°F
65°F
68°F
71°F
74°F
77°F
80°F
83°F
86°F
89°F
92°F
95°F
98°F
101°F
104°F
107°F
110°F
113°F
116°F
65°F
69°F
73°F
77°F
81°F
85°F
89°F
93°F
97°F
101°F
105°F
109°F
113°F
117°F
121°F
125°F
129°F
133°F
65°F
70°F
75°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
145°F
150°F
65°F
71°F
77°F
83°F
89°F
95°F
101°F
107°F
113°F
119°F
125°F
131°F
137°F
143°F
149°F
155°F
161°F
167°F
65°F
72°F
79°F
86°F
93°F
100°F
107°F
114°F
121°F
128°F
135°F
142°F
149°F
156°F
163°F
170°F
177°F
201°F
65°F
73°F
81°F
89°F
97°F
105°F
113°F
121°F
129°F
137°F
145°F
153°F
161°F
169°F
177°F
185°F
193°F
218°F
65°F
74°F
83°F
92°F
101°F
110°F
119°F
128°F
137°F
146°F
155°F
164°F
173°F
182°F
191°F
200°F°
209°F
65°F
75°F
85°F
95°F
105°F
115°F
125°F
135°F
145°F
155°F
165°F
175°F
185°F
195°F
205°F
215°F
65°F
76°F
87°F
98°F
109°F
120°F
131°F
142°F
153°F
164°F
175°F
186°F
197°F
208°F
219°F
65°F
77°F
89°F
101°F
113°F
125°F
137°F
149°F
161°F
173°F
185°F
197°F
209°F
Table C-4. Header Temperature for a Building Reference Temperature of 70°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
70°F
65°F
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
-15°F
-20°F
70°F
73°F
76°F
79°F
82°F
85°F
88°F
91°F
94°F
97°F
100°F
103°F
106°F
109°F
112°F
115°F
118°F
121°F
124°F
70°F
74°F
78°F
82°F
86°F
90°F
94°F
98°F
102°F
106°F
110°F
114°F
118°F
122°F
126°F
130°F
134°F
138°F
142°F
70°F
75°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
160°F
70°F
76°F
82°F
88°F
94°F
100°F
106°F
112°F
118°F
124°F
130°F
136°F
142°F
148°F
154°F
160°F
166°F
172°F
178°F
70°F
77°F
84°F
91°F
98°F
105°F
112°F
119°F
126°F
133°F
140°F
147°F
154°F
161°F
168°F
175°F
182°F
189°F
196°F
70°F
78°F
86°F
94°F
102°F
110°F
118°F
126°F
134°F
142°F
150°F
158°F
166°F
174°F
182°F
190°F
198°F
206°F
214°F
70°F
79°F
88°F
97°F
106°F
115°F
124°F
133°F
142°F
151°F
160°F
169°F
178°F
187°F
196°F
205°F
214°F
70°F
80°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
200°F
210°F
70°F
81°F
92°F
103°F
114°F
125°F
136°F
147°F
158°F
169°F
180°F
191°F
202°F
213°F
70°F
82°F
94°F
106°F
118°F
130°F
142°F
154°F
166°F
178°F
190°F
202°F
214°F
C-3
APPENDIX C _____________________________
Table C-5. Header Temperature for a Building Reference Temperature of 75°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
75°F
70°F
65°F
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
-15°F
75°F
78°F
81°F
84°F
87°F
90°F
93°F
96°F
99°F
102°F
105°F
108°F
111°F
114°F
117°F
120°F
123°F
126°F
129°F
75°F
79°F
83°F
87°F
91°F
95°F
99°F
103°F
107°F
111°F
115°F
119°F
123°F
127°F
131°F
135°F
139°F
143°F
147°F
75°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
160°F
165°F
75°F
81°F
87°F
93°F
99°F
105°F
111°F
117°F
123°F
129°F
135°F
141°F
147°F
153°F
159°F
165°F
171°F
177°F
183°F
75°F
82°F
89°F
96°F
103°F
110°F
117°F
124°F
131°F
138°F
145°F
152°F
159°F
166°F
173°F
180°F
187°F
194°F
201°F
75°F
83°F
91°F
99°F
107°F
115°F
123°F
131°F
139°F
147°F
155°F
163°F
171°F
179°F
187°F
195°F
203°F
211°F
219°F
75°F
84°F
93°F
102°F
111°F
120°F
129°F
138°F
147°F
156°F
165°F
174°F
183°F
192°F
201°F
210°F
219°F
75°F
85°F
95°F
105°F
115°F
125°F
135°F
145°F
155°F
165°F
175°F
185°F
195°F
205°F
215°F
75°F
86°F
97°F
108°F
119°F
130°F
141°F
152°F
163°F
174°F
185°F
196°F
207°F
218°F
75°F
87°F
99°F
111°F
123°F
135°F
17°F
159°F
171°F
183°F
195°F
207°F
219°F
Table C-6. Header Temperature for a Building Reference Temperature of 80°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
80°F
75°F
70°F
65°F
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
-5°F
-10°F
80°F
83°F
86°F
89°F
92°F
95°F
98°F
101°F
104°F
107°F
110°F
113°F
116°F
119°F
122°F
125°F
128°F
131°F
134°F
80°F
84°F
88°F
92°F
96°F
100°F
104°F
108°F
112°F
116°F
120°F
124°F
128°F
132°F
136°F
140°F
144°F
148°F
152°F
80°F
85°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
160°F
165°F
170°F
80°F
86°F
92°F
98°F
104°F
110°F
116°F
122°F
128°F
134°F
140°F
146°F
152°F
158°F
164°F
170°F
176°F
182°F
188°F
80°F
87°F
94°F
101°F
108°F
115°F
122°F
129°F
136°F
143°F
150°F
157°F
164°F
171°F
178°F
185°F
192°F
199°F
206°F
80°F
88°F
96°F
104°F
112°F
120°F
128°F
136°F
144°F
152°F
160°F
168°F
176°F
184°F
192°F
200°F
208°F
216°F
80°F
89°F
98°F
107°F
116°F
125°F
134°F
143°F
152°F
161°F
170°F
174°F
188°F
197°F
206°F
215°F
80°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
200°F
210°F
80°F
91°F
102°F
113°F
124°F
135°F
146°F
157°F
168°F
179°F
190°F
201°F
212°F
80°F
92°F
104°F
116°F
128°F
140°F
152°F
164°F
176°F
188°F
200°F
212°F
C-4
APPENDIX C
APPENDIX C _____________________________
Table C-7. Header Temperature for a Building Reference Temperature of 90°F
RESET RATIO
Air
Temp
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
90°F
85°F
80°F
75°F
70°F
65°F
60°F
55°F
50°F
45°F
40°F
35°F
30°F
25°F
20°F
15°F
10°F
5°F
0°F
90°F
93°F
96°F
99°F
102°F
105°F
108°F
111°F
114°F
117°F
120°F
123°F
126°F
129°F
132°F
135°F
138°F
141°F
144°F
90°F
94°F
98°F
102°F
106°F
110°F
114°F
118°F
122°F
126°F
130°F
134°F
138°F
142°F
146°F
150°F
154°F
158°F
162°F
90°F
95°F
100°F
105°F
110°F
115°F
120°F
125°F
130°F
135°F
140°F
145°F
150°F
155°F
160°F
165°F
170°F
175°F
180°F
90°F
96°F
102°F
108°F
114°F
120°F
126°F
132°F
138°F
144°F
150°F
156°F
162°F
168°F
174°F
180°F
186°F
192°F
198°F
90°F
97°F
104°F
111°F
118°F
125°F
132°F
139°F
146°F
153°F
160°F
167°F
174°F
181°F
188°F
195°F
202°F
209°F
216°F
90°F
98°F
106°F
114°F
122°F
130°F
138°F
146°F
154°F
162°F
170°F
178°F
186°F
194°F
202°F
210°F
218°F
90°F
99°F
108°F
117°F
126°F
135°F
144°F
153°F
162°F
171°F
180°F
189°F
198°F
207°F
216°F
90°F
100°F
110°F
120°F
130°F
140°F
150°F
160°F
170°F
180°F
190°F
200°F
210°F
90°F
101°F
112°F
123°F
134°F
145°F
156°F
167°F
178°F
189°F
200°F
90°F
102°F
114°F
126°F
138°F
150°F
162°F
174°F
186°F
198°F
210°F
C-5
APPENDIX D
APPENDIX D
_____________________________
NTC Temperature Sensor Resistance Chart
Temperature (°F)
Resistance (ohms)
Temperature (°F)
Resistance (ohms)
-40
239,571
180
1,362
-30
173,530
190
1,155
-20
127,088
200
984
-10
94,059
210
842
0
70,314
220
723
10
53,068
230
623
20
40,418
240
539
30
31,053
250
468
40
24,057
260
408
50
18,787
270
357
60
14,783
280
313
70
11,717
290
276
80
9,353
300
243
90
7,516
310
100
6,078
320
110
4,946
330
120
4,049
340
130
3,333
350
140
2,759
360
150
2,296
370
160
1,920
380
170
1,613
390
NOTE
This Temperature Chart is applicable to Header Sensor (and Return
Sensor), Part No. 64038 and Outside Air Sensor, Part No. GP-
122662.
D-1
APPENDIX E
APPENDIX E
_____________________________
BMS II WIRING DIAGRAM
E-1
APPENDIX F
APPENDIX F
_____________________________
BMS II PARTS AND ACCESSORIES
PART NUMBER
DESCRIPTION
64053
Boiler Management System II (BMS II)
12 VAC, 5A, 2AG Subminiature, FastGP-123043
Acting Fuse (Littlefuse 225005)
69091
4 – 20 mA Fuse
GP-122662
Outside Air Temperature Sensor
GM-122781
Outside Air Temperature Sensor Kit
64038
Header Temperature Sensor
Thermowell for Header Temperature
Sensor
GP-122758
GM-122790
Header Temperature Sensor Kit
GM-122791
Outdoor Reset Kit
62017
62018
62019
62020
Low Voltage Terminal Block (14 pin)
High Voltage Terminal Block (9 pin)
RS485 Terminal Block (3 pin)
RS232 Terminal Block (4 pin)
COMMENTS
Complete BMS II
For System-Start, Fault Alarm,
and Auxiliary Relays
63 microamp fuse for current
loop
Sensor Only
Includes Sensor (GP-122662)
and Mounting Bracket
Sensor Only
Thermowell Only
Includes 64038 and
GP-122758
Includes GM-122781 and
GM-122790
F-1
APPENDIX G
APPENDIX G
_____________________________
PROGRAMMING THE BMS II USING RS-232 COMMUNICATION
Introduction
The RS-232 port located in the wiring compartment area of the BMS II can be used to program
the BMS II using a laptop computer or other suitable terminal. Connection to a laptop or other
terminal device is made by wiring to the RXD, TXD and GND connections (see paragraph 2.9
and Figure 2-12 for pinout information when wiring from a DB9 connector).. Communication can
be accomplished using any “Dumb Terminal” emulation, such as Hyper Terminal which is
included with Microsoft Windows. The RS-232 communication feature allows the BMS to be
easily programmed to your installation requirements using a listing of entry commands.
Set-Up
Regardless of the terminal emulation utilized, the following guidelines must be adhered
to when interfacing the BMS to the Terminal device:
1. Connect cable leads to the RS-232 connector in the wiring area of the BMS II.
2. Connect the free end of the cable to the COM 1 or COM 2 port on your laptop, or other suitable
terminal device.
3. Set up the emulator communication link as follows:
(d) Set the baud rate to 9600.
(e) Set the data format to 8 bits, 1 stop bit, no parity and either Xon/Xoff or No Flow Control.
4. Turn on the BMS II by pressing the ON/OFF key. Verify that the ON LED lights.
5. Press the MENU key. Go to the SETUP MENU and enter a valid PASSWORD.
6. Press the MENU key and go to the RS232 MENU.
7. Press the ▲ arrow key to display the RS232 MODE option.
8. Press the ▲ or ▼ arrow key to display NORMAL. Press the ENTER key to store the NORMAL
selection
9. Start the emulator software program.
10. At
the
command
prompt,
enter
the
password
EXACTLY
as
follows
(case-sensitive):
P=gobms
11. Press Return (<Rtn>) on your terminal.
12. The setup is now complete. You are ready to begin viewing or changing BMS functions.
G-1
APPENDIX G
APPENDIX G
(cont.)
__________________________
Programming Procedure
BMS II functions which can be viewed or changed are listed in Table J-1 along with their
corresponding command numbers. Functions which can only be viewed (such as actual sensor
readings) are marked “Read Only”. Viewing or changing function values is accomplished as
follows:
1. Select the number of the desired command from Table J-1.
2. To view a parameter, type ?, followed by the command number and then press return (<Rtn>). For
example, to view command no. 00 (HEADER TEMPERATURE), enter:
?00<Rtn>
The header temperature reading will be displayed. All temperature readings are in °F.
3. To program (set) a BMS parameter, type @, followed by the command number, an equal sign, the
parameter value and a trailing zero. For example, to set command 05 (SYSTEM OUTSIDE AIR
START TEMPERATURE) to 65°F, enter:
@05=650<Rtn>
Use the above steps to view and/or program the desired BMS II functions listed in Table G-1.
G-2
APPENDIX G
APPENDIX G
(cont.)
__________________________
Table G-1. BMS II COMMANDS
No.
00
01
02
03
04
05
06
COMMAND
Header Temperature (°F)
Outside Air Temperature (°F)
Return Sensor (°F)
Percent of Load (%)
Header Set Temperature (°F)
System Start Temperature (°F)
System Start Mode
07
08
09
10
11
Internal Setpt (°F)
Bldg Reference Temperature (°F)
Not Used
Not Used
Reset Ratio
12
13
14
15
16
Maximum Header Temperature (°F)
Minimum Header Temperature (°F)
Boiler Start Percent
Boiler Stop Percent
Integral Gain (Rep./Min)
17
Header Set Mode
18
Derivative Gain
19
20
21
Proportional Band (°F)
Aux Relay Open
Aux Relay Close
22
Failsafe Mode
23
Fault Relay Mode
24
Alarm Clear Method
25
Boiler Operation Mode
ENTRY RANGE
40 to 220
-60 to 80
40 to 160
0 to 100
40 to 220
32 to 120
0 = Temp Only
1 = Temp and Load
40 to 220
40 to 220
0.3 to 3.0
(0.1 increments)
40 to 220
40 to 220
25 to 100
10 to 45
0.00 to 9.99
(0.01 increments)
0 = Constant Setpt
1 = Indr/Outdr Reset
2 = Remote Settemp
-2.00 to 2.00
(0.01 increments)
5 to 100
0 to 99
0 = 100% Fire Rate
1 = 100% and OFF
0 = Shutdown
1 = Switch Inputs
0 = All Faults
1 = No Interlock
2 = Interlock 2
3 = Interlock 1
0 = Automatic
1 = Manual
0 = Parallel
1 = Sequential
2 = Combination
FACTORY
DEFAULT
Read Only
Read Only
Read Only
Read Only
Read Only
70
0 = Temp Only
160
70°F
1.2
220
40
20
16
0.15
0 = Constant Setpt
0.15
70
45
1 = 100% AND OFF
0 = Shutdown
0 = All Faults
0 = Automatic
1 = Sequential
G-3
APPENDIX G
APPENDIX G
(cont.)
__________________________
Table G-1. BMS II COMMANDS
No.
26
27
28
29
30
31
32
33
34
35
36
37
38
Thru
44
45
Thru
51
52
Thru
58
59
60
61
70
Thru
76
77
Thru
83
84
85
G-4
COMMAND
ENTRY RANGE
FACTORY
DEFAULT
Not Used
Reserved
Maximum Power Input
System Interlock Configuration
Real Time Clock - Minutes
Real Time Clock - Hours
Real Time Clock - Day Of Week
Real Time Clock - Year
Real Time Clock - Day Of Month
Real Time Clock - Month
(Day 1 – Sun.)
Offset Temperatures (Day 1-7)
(Day 7 – Sat.)
(Sun.)
Offset ON Time – Minutes (Sun.-Sat.)
(Sat.)
(Sun.)
Offset ON Time – Hours (Sun.-Sat.)
(Sat.)
Offset Enable
Header Temp Offset (°F)
System Start Interlock
(Sun.)
Offset OFF Time – Minutes (Sun.-Sat.)
Sat.)
(Day 1)
Offset OFF Time – Hours (Day 1-7)
(Day 7)
(Reserved)
Not Used
50 to 100
0 = Always Enabled
1 = Start Enabled
00 to 59
00 to 23
1 to 7
00 to 99
00 to 31
00 to 12
100
1 = Start Enabled
Present Time
Present Time
Present Day
Present Year
Present Day
Present Month
-50 to +50°F
All Set To 0°F
00 to 59
All Set to Zero
00 to 23
All Set To Zero
0 = Disabled
1 = Enabled
-10°F to 10°F
1 = Intlk 1 Opens
Start Relay
2 = Intlk 2 Opens Start
Relay
3 = Either Intlk Opens
Start Relay
0 = Disabled
00 to 59
All Set To Zero
0 to 23
All Set To Zero
0 or 1
0
1 = Intlk 1
APPENDIX G
APPENDIX G
(cont.)
__________________________
Table G-1. BMS COMMANDS – (Continued)
No.
86
COMMAND
Remote Signal
87
RS232 Mode
88
RS232 Baud Rate
89
90
91
92
Number Of Network Boilers
Min Slave Address
Max Slave Address
Net Boiler 1 Address
93
Net Boiler 2 Address
94
Net Boiler 3 Address
95
Net Boiler 4 Address
96
Net Boiler 5 Address
97
Net Boiler 6 Address
98
Net Boiler 7 Address
99
Net Boiler 8 Address
100
Net Boiler 9 Address
101
Net Boiler 10 Address
102
Net Boiler 11 Address
103
Net Boiler 12 Address
104
Net Boiler 13 Address
105
Net Boiler 14 Address
106
Net Boiler 15 Address
ENTRY RANGE
0 or 1
0 = 4 - 20 mA
1 = Modbus
0 or 1
0 = Normal
1 = Modbus
0=2400, 1=4800,
2=9600, 3=14400,
4=19200
0 to 32
0 to 127
0 to 127
Address for Network
Boiler 1
Address for Network
Boiler 2
Address for Network
Boiler 3
Address for Network
Boiler 4
Address for Network
Boiler 5
Address for Network
Boiler 6
Address for Network
Boiler 7
Address for Network
Boiler 8
Address for Network
Boiler 9
Address for Network
Boiler 10
Address for Network
Boiler 11
Address for Network
Boiler 12
Address for Network
Boiler 13
Address for Network
Boiler 14
Address for Network
Boiler 15
FACTORY
DEFAULT
0 = 4 - 20 mA
1 = Modbus
2 = 9600
2
0
0
001
002
000
000
000
000
000
000
000
000
000
000
000
000
000
G-5
APPENDIX G
(cont.)
__________________________
Table G-1. BMS II COMMANDS – (Continued)
No.
107
COMMAND
Net Boiler 16 Address
108
Net Boiler 17 Address
109
Net Boiler 18 Address
110
Net Boiler 19 Address
111
Net Boiler 20 Address
112
Net Boiler 21 Address
113
Net Boiler 22 Address
114
Net Boiler 23 Address
115
Net Boiler 24 Address
116
Net Boiler 25 Address
117
Net Boiler 26 Address
118
Net Boiler 27 Address
119
Net Boiler 28 Address
120
Net Boiler 29 Address
121
Net Boiler 30 Address
122
Net Boiler 31 Address
123
Net Boiler 32 Address
124
Network Baud
125
126
127
128
Network Timeout
Password Lo
Password Hi
Modbus Control Type
ENTRY RANGE
Address for Network
Boiler 16
Address for Network
Boiler 17
Address for Network
Boiler 18
Address for Network
Boiler 19
Address for Network
Boiler 20
Address for Network
Boiler 21
Address for Network
Boiler 22
Address for Network
Boiler 23
Address for Network
Boiler 24
Address for Network
Boiler 25
Address for Network
Boiler 26
Address for Network
Boiler 27
Address for Network
Boiler 28
Address for Network
Boiler 29
Address for Network
Boiler 30
Address for Network
Boiler 31
Address for Network
Boiler 32
0=2400, 1=4800,
2=9600, 3=14400,
4=19200
5 to 240 sec
0 to 255
0 to 255
0 = Round-Robin
1 = Broadcast
FACTORY
DEFAULT
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
000
2 = 9600
60 sec.
0
0
0 = Round Robin
APPENDIX G
APPENDIX G
(cont.)
__________________________
Table G-1. BMS II COMMANDS – (Continued)
FACTORY DEFAULT
No.
129
COMMAND
Modbus Pass-Thru
130
131
132
133
134
Header Temp Deadband
Outside Temp Sensor Offset
Ramp Up %/Min
Ramp Down %/Min
Fault Alarm Boilers
135
136
137
138
150
4-20 mA Offset
Return Sensor Offset
Load Start Pct
Load Stop Pct
I/O Status
ENTRY RANGE
0 = Disabled
1 = Enabled
01 to 15°F
-10.0°F to 10.0°F
000 to 300
000 to 300
No Blr Faults
All Blr faults
-1.00 to 1.00 mA
-10.0 to 10.0°F
000 to 100
000 to 100
00 to 255
151
&
Up
(Reserved For Future Expansion)
Undefined
0 = Disabled
05°F
0.0°F
20
200
No Blr Faults
0.0 mA
0.0°F
1
0
Bit 0 = AUX Relay
Bit 1 = Fault Relay
Bit 2 = Sys Start Relay
Bit 3 = Empty
Bit 4 = Setback
Bit 5 = Interlock 2
Bit 6 = Interlock 1
Bit 7 = Empty
G-7
APPENDIX H
APPENDIX H
__________________________
BMS II MODBUS ADDRESS ASSIGNMENTS
H-1 BMS II STANDARD INPUT REGISTER ASSIGNMENMTS
The Read Only Input Register assignments for the BMS II are listed in Table H-1 which follows:
Table H-1. BMS II Standard Input Register Address Mapping
Modbus Data
Address (Hex)
Menu Item
Units and Range
0x0000
(Reserved)
0x0001
Header Temperature
40 to 220°F
0x0002
Outside Air Temperature
-60 to 120°F
0x0003
Indoor Air/Return
Temperature
40 to 220°F
0x0004
Fire Rate Out
0 to 100%
(out to boilers)
0x0005
Header Set Temperature
40 to 220°F
0x0006
Network Address
128 to 247
0x0007
Total Boilers Fired
0 to 32 (for BMS II)
0x0008
Total Boilers On Line
0 to 32
0x0009
(Reserved)
0x000A
Fault/Message Code
0x000B
thru
0x000F
(Reserved)
0x0010
Lead Boiler Number
Default/Comments
Default = 128
0 to 65535
Bit:
0 = Outside Air Sensor
1 = Header Sensor Error
2 = Interlock 1 Error
3 = Interlock 2 Error
4 = Indoor Air Sensor Error/
Return Sensor Error
5 = 4-20mA Input Error
1 to 32
H-1
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-1. BMS II Standard Input Register Address Mapping-Cont.
Modbus Data
Address (Hex)
H-2
Menu Item
Units and Range
0x0011
Thru
0x0018
Not Applicable
0x0019
Boiler 1 Status
(Net Boiler 1)
119 = Not On-Line
120 = On-Line But Not Fired
1–40 = Fired & Sequence
121 = On-Line But Disabled
122 = On-Line But Faulted
0x001A
Boiler 2 Status
(Net Boiler 2)
Same As Above
0x001B
Boiler 3 Status
(Net Boiler 3)
Same As Above
0x001C
Boiler 4 Status
(Net Boiler 4)
Same As Above
0x001D
Boiler 5 Status
(Net Boiler 5)
Same As Above
0x001E
Boiler 6 Status
(Net Boiler 6)
Same As Above
0x001F
Boiler 7 Status
(Net Boiler 7)
Same As Above
0x0020
Boiler 8 Status
(Net Boiler 8)
Same As Above
0x0021
Boiler 9 Status
(Net Boiler 9)
Same As Above
0x0022
Boiler 10 Status
(Net Boiler 10)
Same As Above
0x0023
Boiler 11 Status
(Net Boiler 11)
Same As Above
0x0024
Boiler 12 Status
(Net Boiler 12)
Same As Above
0x0025
Boiler 13 Status
(Net Boiler 13)
Same As Above
0x0026
Boiler 14 Status
(Net Boiler 14)
Same As Above
Comments
Used for 8 BMS Legacy
(PWM) Boilers Only
BMS II has only Network
Boilers so Net Boiler 1 =
Boiler 1, etc.
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-1. BMS II Standard Input Register Address Mapping-Cont.
Modbus Data
Address (Hex)
Menu Item
Units and Range
0x0027
Boiler 15 Status
(Net Boiler 15)
119 = Not On-Line
120 = On-Line But Not Fired
1–40 = Fired & Sequence
121 = On-Line But Disabled
122 = On-Line But Faulted
0x0028
Boiler 16 Status
(Net Boiler 16)
Same As Above
0x0029
Boiler 17 Status
(Net Boiler 17)
Same As Above
0x002A
Boiler 18 Status
(Net Boiler 18)
Same As Above
0x002B
Boiler 19 Status
(Net Boiler 19)
Same As Above
0x002C
Boiler 20 Status
(Net Boiler 20)
Same As Above
0x002D
Boiler 21 Status
(Net Boiler 21)
Same As Above
0x002E
Boiler 22 Status
(Net Boiler 22)
Same As Above
0x002F
Boiler 23 Status
(Net Boiler 23)
Same As Above
0x0030
Boiler 24 Status
(Net Boiler 24)
Same As Above
0x0031
Boiler 25 Status
(Net Boiler 25)
Same As Above
0x0032
Boiler 26 Status
(Net Boiler 26)
Same As Above
0x0033
Boiler 27 Status
(Net Boiler 27)
Same As Above
0x0034
Boiler 28 Status
(Net Boiler 28)
Same As Above
0x0035
Boiler 29 Status
(Net Boiler 29)
Same As Above
0x0036
Boiler 30 Status
(Net Boiler 30)
Same As Above
Comments
H-3
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-1. BMS II Standard Input Register Address Mapping-Cont.
Modbus Data
Address (Hex)
Units and Range
0x0037
Boiler 31 Status
(Net Boiler 31)
119 = Not On-Line
120 = On-Line But Not Fired
1–40 = Fired & Sequence
121 = On-Line But Disabled
122 = On-Line But Faulted
0x0038
Boiler 32 Status
(Net Boiler 32)
Same As Above
0x0039
I/O Status
00 to 255
0x003A
Return Sensor Temp
40°F to 220°F
0x003B
Thru
0xFFFF
H-4
Menu Item
Comments
Bit map of Input/Output
Status:
Bit 0 = AUX Relay
Bit 1 = Fault Relay
Bit 2 = Sys Start Relay
Bit 3 = Empty
Bit 4 = Setback
Bt 5 = Interlock 2
Bit 6 = Interlock 1
Bit 7 = Empty
APPENDIX H
APPENDIX H (cont.)
__________________________
H-2. BMS II Controller Standard Holding Register Assignments
The Holding Register address assignments for the BMS II are listed in Table H-2 which follows. Unless
otherwise specified, all Holding Register Menu items are Read/Write (R/W).
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
Menu Item
Units and Range
Default/Comments
0x0000
thru
0x0003
(Reserved)
0x0004
Net Header Set
Temp
40 to 220°F
Valid when Hdr Set
Mode=Remote Setpt
and Remote Signal =
Network
0x0005
System Start Temp
32 to 120°F
Default = 70°F
0x0006
System Start Option 0 or 1
0 = Temp Only,
1 = Temp and Load
Default = 0
0x0007
Manual Hdr Set
Temp/Internal Setpt
40 to 220°F
Default = 160°F
0x0008
Bldg Ref Temp
40 to 220°F
Default = 70°F
0x0009
Not Applicable
0x000A
Not Applicable
0x000B
Reset Ratio
0.3 to 3.0
(0.1 increments),
Default = 1.2
(Value x 10)
0x000C
Max Header Temp
40 to 220°F
Default = 200°F
0x000D
Min Header Temp
40 to 220°F
Default = 40°F
0x000E
Start Percent
25 to 100%
Default = 20%
0x000F
Stop Percent
10 to 45%
Default = 16%
0x0010
Integral Gain
0.00 to 9.99 Rep/Min
(in 0.01 increments
Default = 0.15 Rep/Min
(Value x 100)
0x0011
Header Set Mode
0, 1, or 2
0 = Constant Setpt
1 = In/Outdoor Reset
2 = Remote Setpt
Default = 0
(Constant Setpt))
H-5
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
H-6
Menu Item
Units and Range
Default/Comments
0x0012
Derivative Gain
-2.00 to 2.00
(0.00 increments)
Default = 0.15
(Value x 100)
0x0013
Header Temp
Bandwidth
5 to 120°F
Default = 70°F
0x0014
Aux Relay Open
0 to 99%
Default = 45%
0x0015
Aux Relay Mode
0 or 1
0 = 100% Fire Rate
1 = 100% Fire Rate and Off
Default = 1
(100% Fire Rate & Off)
0x0016
Failsafe Mode
0 or 1
0 = Shutdown
1 = Constant Setpt
Default = 0
(Shutdown)
0x0017
Fault Alarm Relay
Mode
0, 1, 2, 3
0 = All Faults,
1 = No Interlock
2 = Interlock 1
3 = Interlock 2
Default = 0
(All Faults)
0x0018
Fault Alarm Clear
Method
0 or 1
0 = Automatic
1 = Manual
Default = 0
(Automatic)
0x0019
Boiler Operation
Mode
0, 1 or 2
0 = Parallel
1 = Sequential
2 = Combination
Default = 1
(Sequential)
0x001A
Not Applicable
0x001B
(Reserved)
0x001C
(Reserved)
0x001D
(Reserved)
0x001E
Max Power Input
50 to 100%
Default = 100%
(Fire Rate)
0x001F
Sys Intlk Config
0 or 1
0 = Always Enabled
1 = Start Enabled
Default = 1
(Start Enabled)
0x0020
Real Time Clock
Minutes
00 to 59
Present Time
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
Menu Item
Units and Range
Default/Comments
0x0020
Real Time Clock
Minutes
00 to 59
Present Time
0x0021
Real Time Clock
Hours
00 to 23 Hours
Present Time
0x0022
Real Time Clock
Day of Week
1 to 7
Present Day
0x0023
Real Time Clock
Year
00 to 99
Present Year
0x0024
Real Time Clock
Day of Month
01 to 31
Present Day of Month
0x0025
Real Time Clock
Month
01 to 12
Present Month
0x0026
Offset Temp Sun.
-50 to 50°F
Default = 0°F
0x0027
Offset Temp Mon.
-50 to 50°F
Default = 0°F
0x0028
Offset Temp Tue.
-50 to 50°F
Default = 0°F
0x0029
Offset Temp Wed.
-50 to 50°F
Default = 0°F
0x002A
Offset Temp Thu.
-50 to 50°F
Default = 0°F
0x002B
Offset Temp Fri.
-50 to 50°F
Default = 0°F
0x002C
Offset Temp Sat.
-50 to 50°F
Default = 0°F
0x002D
Offset On Time
Day 1 – Minutes
00 to 59 Minutes
Default = o
0x002E
Offset On Time
Day 2 – Minutes
00 to 59 Minutes
Default = 0
0x002F
Offset On Time
Day 3 – Minutes
00 to 59 Minutes
Default = 0
0x0030
Offset On Time
Day 4 – Minutes
00 to 59 Minutes
Default = 0
0x0031
Offset On Time
Day 5 – Minutes
00 to 59 Minutes
Default = 0
0x0032
Offset On Time
Day 6 – Minutes
00 to 59 Minutes
Default = 0
0x0033
Offset On Time
Day 7 – Minutes
00 to 59 Minutes
Default = 0
H-7
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
Units and Range
Default/Comments
0x0034
Offset On Time
Day 1 – Hours
00 to 23 Hours
Default = 0
0x0035
Offset On Time
Day 2 – Hours
00 to 23 Hours
Default = 0
0x0036
Offset On Time
Day 3 – Hours
00 to 23 Hours
Default = 0
0x0037
Offset On Time
Day 4 – Hours
00 to 23 Hours
Default = 0
0x0038
Offset On Time
Day 5 – Hours
00 to 23 Hours
Default = 0
0x0039
Offset On Time
Day 6 – Hours
00 to 23 Hours
Default = 0
0x003A
Offset On Time
Day 7 – Hours
00 to 23 Hours
Default = 0
0x003B
Offset Enable
0 or 1
0 = Disabled
1 = Enabled
Default = 0
(Disabled)
0x003C
Header Temp Offset -10 to 10°F
Default = 0°F
0x003D
System Start
Interlock
1, 2 or 3
1 = Intlk1 Opens Start Relay
2 = Intlk2 Opens Start Relay
3 = Either Intlk Opens Start
Relay
Default = 1
(Intlk 1)
0x003E Thru
0x0045
H-8
Menu Item
(Reserved)
0x0046
Offset Off Time
Sun. – Minutes
0 to 59 Minutes
Default = 0
0x0047
Offset Off Time
Mon. – Minutes
0 to 59 Minutes
Default = 0
0x0048
Offset Off Time
Tue.– Minutes
0 to 59 Minutes
Default = 0
0x0049
Offset Off Time
Wed.– Minutes
0 to 59 Minutes
Default = 0
0x004A
Offset Off Time
Thu – Minutes
0 to 59 Minutes
Default = 0
0x004B
Offset Off Time
Fri. – Minutes
0 to 59 Minutes
Default = 0
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
Menu Item
Units and Range
Default/Comments
0x004C
Offset Off Time
Sat. – Minutes
0 to 59 Minutes
Default = 0
0x004D
Offset Off Time
Sun. – Hours
0 to 23 Hours
Default = 0
0x004E
Offset Off Time
Mon. – Hours
0 to 23 Hours
Default = 0
0x004F
Offset Off Time
Tue. – Hours
0 to 23 Hours
Default = 0
0x0050
Offset Off Time
Wed. – Hours
0 to 23 Hours
Default = 0
0x0051
Offset Off Time
Thu. – Hours
0 to 23 Hours
Default = 0
0x0052
Offset Off Time
Fri. – Hours
0 to 23 Hours
Default = 0
0x0053
Offset Off Time
Sat. – Hours
0 to 23 Hours
Default = 0
0x0054
(Reserved)
0x0055
Not Applicable
0x0056
Remote Signal
0 or 1
0 = 4 – 20 Ma
1 = Network
Default = 0
(4 – 20 Ma)
0x0057
RS232 Mode
0 or 1
0 = Normal
1 = Modbus
Default = 1
(Modbus)
0x0058
RS232 Baud Rate
0=2400, 1=4800, 2=9600,
3=14400, 4=19200
2 = 9600
0x0059
Number Of Network
Boilers
0 to 32
Default = 2
0x005A
Min Slave Address
0 to 127
Default = 0
**0x005B
Max Slave Address
0 to 127,
Default = 0
**0x005C
Net Boiler 1
Address
Address for Network Boiler 1
Default = 1
**0x005D
Net Boiler 2
Address
Address for Network Boiler 2
Default = 2
H-9
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
H-10
Menu Item
Units and Range
Default/Comments
0x005E
Net Boiler 3
Address
Address for Network Boiler 3
Default = 0
0x005F
Net Boiler 4
Address
Address for Network Boiler 4
Default = 0
0x0060
Net Boiler 5
Address
Address for Network Boiler 5
Default = 0
0x0061
Net Boiler 6
Address
Address for Network Boiler 6
Default = 0
0x0062
Net Boiler 7
Address
Address for Network Boiler 7
Default = 0
0x0063
Net Boiler 8
Address
Address for Network Boiler 8
Default = 0
0x0064
Net Boiler 9
Address
Address for Network Boiler 9
Default = 0
*0x0065
Net Boiler 10
Address
Address for Network Boiler
10
Default = 0
0x0066
Net Boiler
11address
Address for Network Boiler
11
Default = 0
0x0067
Net Boiler 12
Address
Address for Network Boiler
12
Default = 0
0x0068
Net Boiler 13
Address
Address for Network Boiler
13
Default = 0
**0x0069
Net Boiler 14
Address
Address for Network Boiler
14
Default = 0
0x006A
Net Boiler 15
Address
Address for Network Boiler
15
Default = 0
0x006B
Net Boiler 16
Address
Address for Network Boiler
16
Default = 0
0x006C
Net Boiler 17
Address
Address for Network Boiler
17
Default = 0
0x006D
Net Boiler 18
Address
Address for Network Boiler
18
Default = 0
0x006E
Net Boiler 19
Address
Address for Network Boiler
19
Default = 0
0x006F
Net Boiler 20
Address
Address for Network Boiler
20
Default = 0
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
Menu Item
Units and Range
Default/Comments
0x0070
Net Boiler 21
Address
Address for Network Boiler
21
Default = 0
0x0071
Net Boiler 22
Address
Address for Network Boiler
22
Default = 0
0x0072
Net Boiler 23
Address
Address for Network Boiler Default = 0
23
0x0073
Net Boiler 24
Address
Address for Network Boiler Default = 0
24
0x0074
Net Boiler 25
Address
Address for Network Boiler Default = 0
25
0x0075
Net Boiler 26
Address
Address for Network Boiler Default = 0
26
0x0076
Net Boiler 27
Address
Address for Network Boiler Default = 0
27
0x0077
Net Boiler 28
Address
Address for Network Boiler Default = 0
28
0x0078
Net Boiler 29
Address
Address for Network Boiler Default = 0
29
0x0079
Net Boiler 30
Address
Address for Network Boiler Default = 0
30
0x007A
Net Boiler 31
Address
Address for Network Boiler Default = 0
31
**0x007B
Net Boiler 32
Address
Address for Network Boiler
32
Default = 0
0x007C
Network Baud
0=2400, 1=4800, 2=9600,
3=14400, 4=19200
2 = 9600
0x007D
Network Timeout
5 to 240 sec
Default = 60 sec.
0x007E
Password Lo
0 to 255 (73)
Default = 0
0x007F
Password Hi
0 to 255 (79)
Default = 0
0x0080
Modbus Control
Type
0 = Round-Robin
1 = Broadcast
Default = 0
(Round Robin)
0x0081
Modbus Pass-Thru
0 = Disabled
1 = Enabled
Default = 0 (Disabled)
0x0082
Header Dead Band
1 to 15°F
Default = 5°F
H-11
APPENDIX H
APPENDIX H (cont.)
__________________________
Table H-2. BMS II Standard Holding Register Address Mapping
Modbus Data
Address (Hex)
H-12
Menu Item
Units and Range
Default/Comments
0x0083
Outside Temp
Sensor Offset
-50 to +50°F
Default = 0
0x0084
Dyn Up
0 to 300
Default = 20
0x0085
Dyn Down
0 to 300
Default = 200
0x0086
Fault Alarm Boilers
0 = No Blr Faults
1 = All Blr Faults
Default = 0
0x0087
4 to 20 mA Current
Offset
-1.00 mA to 1.00 mA
Default = 0
0x0088
Return Sensor
Offset
-10.0°F to 10.0°F
Default = 0
0x0089
Load Start Pct
1 to Blr Start Level
Default = 1
0x008A
Load Stop Pct
0 to Load Start -1
Default = 0
0x008B
Thru
0xFFFF
(Reserved For
Future Expansion)
Undefined
APPENDIX I
APPENDIX I
_____________________________
BOILER START AND BOILER STOP LEVELS
The BMS II Configuration Menu contains options for the Boiler (BLR) Start and Boiler Stop Levels. The
default settings for these options are as follows:
• Boiler Start Level:
20%
• Boiler Stop Level:
16%
In order for the BMS II to properly control the boilers in the Boiler Plant, the corresponding Start and Start
levels must be entered in the BMS II Configuration Menu for the type of AERCO boilers being controlled.
For C-More controlled Benchmark or KC1000 Boilers, the Required Start and Stop Levels are listed at the
end of Chapter 3 in the appropriate Boiler O & M Manual. If the correct O & M Manuals are not available
at the installation site, the correct values can be verified by accessing the Calibration Menu in the C-More
Boiler Controllers.
For Modulex Boilers, the corresponding Start and Start Levels for each Boiler Model are listed in the
following Table.
MODULEX BOILER START/STOP LEVELS
MODULEX
MODEL
NUMBER OF
MODULES
START LEVEL
STOP LEVEL
MLX-303
2
17%
15%
MLX-454
3
12%
10%
MLX-606
4
9%
7%
MLX-757
5
7%
5%
MLX-909
6
6%
4%
MLX-1060
7
5%
3%
When the Boiler Plant being controlled by the BMS II is comprised of a combination of AERCO Boiler
types and sizes, the following guidelines should be used:
•
Modulex Boilers: For different sizes of Modulex Boilers, use the Lowest Start/Stop levels for the
Modulex Boilers included in the plant.
•
C-More Controlled Boiler: For different sizes of C-More controlled Boilers, use the highest Start/Stop
levels for the Boilers included in the plant.
•
Modulex & C-More Controlled Boilers: When a mix of Modulex and C-More Boilers is include in the
heating plant, use the C-More controlled Boiler Start/Stop levels.
I-1
INSTALLATION, OPERATION & MAINTENANCE DATA
JOB:
DATE:
CONTRACTOR:
ENGINEER:
VENDOR:
MATERIAL:
SPEC#:
OSU Ardmore Bioscience
December 27, 2010
Air Control Systems
Phillips & Bacon
Hydronic Systems, Inc.
7749 E 11th Street, Suite B
Tulsa, OK 74112
Office: 918-382-6978
Fax: 918-382-5745
Boiler Flue
235100
Tag: B-1 & B-2
Qty. 1 Lot of Boiler Exhaust Flue: Completely engineered to meet your system requirements.
Technical Specifications: - Double-wall - With increased airspace between the inner flue
conduit and the outer jacket, reduces the required clearance to combustibles and makes a more
rigid flue pipe - large diameters are easier to handle.
- 6" - 32" diameters
- Tapered male and female ends
- Sure-Seal closure system - proven tapered connection and closure ring that actually draws the
joint together. The built in commercial-grade silicone gasket provides a seal able to fully withstand
the increased pressures and stresses of today's high efficiency appliances.
- Superferritic stainless steel inner conduit, 430 stainless steel outer jacket standard manufactured using only high-grade stainless steel alloys. Wherever condensing flue gases can
possibly come in contact with the flue, components are made only from special superferritic
stainless steel alloys such as AL 29-4C®.
Temperature: - Up to 550°F
UL 1738/ULC S636 - Tested & Listed
Fuels: - Natural Gas - Propane
Pressure: - Up to 15" wc
Uses:
- Special gas vent for mid and high-efficiency gas fired heaters and boilers
- ANSI Category I, II, III, or IV appliances and Direct Vent
- Negative, neutral or positive pressure venting systems
Specially suited for:
- Condensing vent systems
-Near-condensing vent systems
-Non-condensing vent systems with a positive pressure
Design by Aerco to guarantee flue performance. Hydronic Systems to oversee installation
per boiler manufacturer requirements.
PLEASE SEE ATTACHED DESIGN, CHANGE IN PRODUCT OR ROUTING WILL CHANGE
DESIGN AND PRICE
©2005
FasNSeal®W2
Material Selection and Design
The FasNSeal®W2 Double Wall Special Gas Vent System is manufactured under the most stringent
quality control measures utilizing the latest production technology and know-how. FasNSeal®W2 is
ideally suited for exhausting high efficiency; natural gas or propane fired heating equipment, where
low flue gas temperatures can result in significant condensate formation within the vent system.
The flue gas conduit (inner tube) is made from
AL29-4C or 29-4 (S44735), a super-ferritic stainless
steel designed for extreme resistance to chloride ion
pitting, crevice corrosion and stress corrosion
cracking, as well as general corrosion in oxidizing and
moderately reducing environments. AL29-4C is an
ideal choice for resisting deleterious effects of
corrosive condensates created by partially or fully
condensing natural gas and propane fired heating
appliances. The Canadian Gas Research Institute
confirmed that test results proved AL29-4C to be one
of two “most corrosion resistant alloys of twenty
candidate stainless steels evaluated for resistance to
chloride-induced corrosion in condensing and partially
condensing gas-fired appliances”. AL29-4C is a
registered trademark of Allegheny Ludlum Corp.
The Jacket (outer tube) is manufactured from type 304 or type 430 stainless steel to provide long
lasting performance and stability inside a building or when exposed to the outdoors.
The Air space between the flue gas conduit and jacket is .5 inches, providing close clearances to
combustibles, reasonable outside dimensions and an additional heat shield or margin of safety where
needed.
“The FasNSeal®W2 System is fully interchangeable with
our FasNSeal® Single-wall System.” See page 9 & 10 for adapter.
FasNSeal®W2 has been tested and is listed by Underwriters Laboratories, Inc. to UL 1738 and
ULC-S636-95 safety standards. When installed according to ProTech Systems’ installation
instructions, FasNSeal®W2 meets all test requirements for horizontal and vertical; interior or exterior
installations.
Clearance To Combustibles
Rated Operating
Temperature, °F
3” & 4”
5” - 16”
Material Thickness
Minimum Clearance
Clearance
Enclosed
Unenclosed
Horizontal Vertical Horizontal Vertical
300°F
400°F
480°F
3”
6”
6”
1”
1”
4”
1”
3”
3”
1”
1”
1”
300°F
400°F
480°F
3”
6”
6”
1”
1”
6”
1”
3”
3”
1”
1”
3”
Rated Operating Temperature of 300°F = Max Flue Gas Temperature of 375°F
Rated Operating Temperature of 480°F = Max Flue Gas Temperature of 550°F
2
Inner Wall Material Thickness
3" - 7" ( 76.2mm - 177.8)
8" - 12" (203.2mm - 304.8)
14" - 16" (355.6mm - 406.4)
.016" (.4mm)
.019" (.5mm)
.024 (.6mm)
Outer Wall Material Thickness
3" - 6" ( 76.2mm - 152.4)
7" - 16" (177.8mm - 406.4)
.016 (.4mm)
.024 (.6mm)
©2005
FasNSeal®W2 is a Heating Contractor’s Dream Come True!
FasNSeal®W2 Is Built For Performance
Proven in our single wall system since 1997, all FasNSeal® products
feature a smooth weld seam inside and out that is completely shielded
during the TIG welding process. Contamination or molecular changes
in the weld seam are avoided; no fillers are used in the welding process.
Tube ends are formed under the most stringent quality standards to
guarantee a perfect fit every time and to avoid built-in stress points or
weak areas.
FasNSeal®W2 Applications
FasNSeal ®W2 is a Special Gas Vent and Gas Vent Connector,
designed for use on natural gas or propane-fired appliances listed as
Category II, III and IV or in Canada Type BH Gas Vent Systems having
a maximum operating temperature of 480 degrees F and maximum rated positive pressure of 6”
water column (tested at 15” water column! ). FasNSeal® W2 provides venting for high efficiency gas
boilers, furnaces, booster heaters, pool heaters, water heaters, unit heaters or tankless water heaters
and is available in 3” -10”, 12”, 14” and 16” nominal flue gas conduit diameters. FasNSeal®W2 may
also be used as a vent for Category I, natural gas or propane-fired heaters. (See installation instructions
for details). FasNSeal® W2 must be sized according to the heating appliance manufacturer’s instructions,
NFPA 211, NFPA 54, The National Fuel Gas Code ANSI Z223.1 and any other relevant local building
codes and regulations (see installation instructions for details!).
FasNSeal® W2 Features Built-in Gaskets And Mechanical Locking Bands
The flue gas conduit of every vent length and component (inner
tube) features a built-in gasket in its female-end to seal each joint.
An integrated mechanical locking band is factory-built into the jacket
(outer tube) of each vent length and component (Pat #6,026,803
addtl. Patents pending). FasNSeal®W2 parts are simply pushed
together until fully seated. This renders the joints air and watertight. By tightening their integrated mechanical locking band, parts
are fastened together in seconds. FasNSeal®W2 can be taken apart
and reassembled in minutes, making inspection, maintenance or
re-routing of FasNSeal®W2 systems a breeze. Adjustable vent
lengths featured in our Wall Thimbles allow for built-in horizontal
adjustability without the need for cutting pipe. Our standard
Adjustable Vent Length allows 4” to 12” of vertical adjustment,
making pitching FasNSeal®W2 to properly drain condensate simple. Connecting FasNSeal®W2 to a
heater is done efficiently with one of our many Adaptors approved by heating appliance manufacturers.
Heating equipment can be fired up immediately upon completing a FasNSeal® W2 installation, as no
cure time or cleanup is required. PTS listened to the installer and came up with the perfect way to
join FasNSeal® parts. No cutting, no exterior clamps, no joints to wipe with alcohol, no rings, no tabs
no mess to clean.
FasNSeal®W2 Technical Support Is Second To None
Submit your specifications on a submittal request form along with your layout and PTS will supply
comprehensive submittal drawings and a complete bill of materials within 48 business hours. Unless
your specs are changed more than once, this service is provided free of charge. For technical or
marketing information visit our website at protechinfo.com. You can contact our technical department
at support@protechinfo.com or call 1.800.766.3473 should you prefer personal technical support.
3
FasNSeal®W2 Vent Length
A
B
Vent Dia. Eff. Lgth
3
A
4
GENERAL VENTING
5
C
B
6
7
8
9
10
12
14
FasNSeal Single Wall &
FasNSeal®W2 Double
Wall are interchangeable
16
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
4.3
10.3
16.3
22.3
34.3
C
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
6.0
12.0
18.0
24.0
36.0
4
D
Product
Number
Part
Number
100001
100015
100045
100060
100075
100002
100016
100046
100061
100076
100003
100017
100047
100062
100077
100004
100018
100048
100063
100078
100005
100019
100049
100064
100079
100006
100020
100050
100065
100080
100007
100021
100051
100066
100081
100008
100022
100052
100067
100082
100009
100023
100053
100068
100083
100010
100024
100054
100069
100084
100011
100025
100055
100070
100085
W2-603
W2-1203
W2-1803
W2-2403
W2-3603
W2-604
W2-1204
W2-1804
W2-2404
W2-3604
W2-605
W2-1205
W2-1805
W2-2405
W2-3605
W2-606
W2-1206
W2-1806
W2-2406
W2-3606
W2-607
W2-1207
W2-1807
W2-2407
W2-3607
W2-608
W2-1208
W2-1808
W2-2408
W2-3608
W2-609
W2-1209
W2-1809
W2-2409
W2-3609
W2-610
W2-1210
W2-1810
W2-2410
W2-3610
W2-612
W2-1212
W2-1812
W2-2412
W2-3612
W2-614
W2-1214
W2-1814
W2-2414
W2-3614
W2-616
W2-1216
W2-1816
W2-2416
W2-3616
FasNSeal®W2 Adjustable Vent Length
A
B
C
Vent Dia. Eff. Lgth
3
4
5
6
7
8
9
10
12
14
16
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
2.0-14.0
D
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
A
Product
Number
Part
Number
100250
100251
100252
100253
100254
100255
100256
100257
100258
100259
100260
W2-AVL3
W2-AVL4
W2-AVL5
W2-AVL6
W2-AVL8
W2-AVL8
W2-AVL9
W2-AVL10
W2-AVL12
W2-AVL14
W2-AVL16
B
C
FasNSeal®W2 90 Degree Elbow
A
B
Vent Dia. Eff. Lgth
3.9
4.4
4.9
5.4
5.9
6.4
6.9
7.4
8.4
9.4
10.1
D
5.9
6.4
6.9
7.4
7.9
8.4
8.9
9.4
10.4
11.4
12.4
Product
Number
Part
Number
100160
100161
100162
100163
100164
100165
100166
100167
100168
100169
100170
W2-9003
W2-9004
W2-9005
W2-9006
W2-9007
W2-9008
W2-9009
W2-9010
W2-9012
W2-9014
W2-9016
Product
Number
Part
Number
100130
100131
100132
100133
100134
100135
100136
100137
100138
100139
100140
W2-4503
W2-4504
W2-4505
W2-4506
W2-4507
W2-4508
W2-4509
W2-4510
W2-4512
W2-4514
W2-4516
Product
Number
Part
Number
100650
100651
100652
100653
100654
100655
100656
100657
100658
100659
100660
5
W2-3003
W2-3004
W2-3005
W2-3006
W2-3007
W2-3008
W2-3009
W2-3010
W2-3012
W2-3014
W2-3016
A
B
C
FasNSeal®W2 45 Degree Elbow
A
B
C
Vent Dia. Eff. Lgth
3
4
5
6
7
8
9
10
12
14
16
5.2
5.6
6.0
6.3
6.7
7.0
7.4
7.7
8.4
9.1
9.8
D
3.0
3.1
3.2
3.4
3.5
3.7
3.8
4.0
4.3
4.7
4.9
A
B
C
FasNSeal®W2 30 Degree Elbow
A
B
C
Vent Dia. Eff. Lgth
3
4
5
6
7
8
9
10
11
14
16
4.9
5.2
5.4
5.7
5.9
6.1
6.4
6.7
7.2
7.7
8.2
1.8
1.9
2.0
2.0
2.1
2.2
2.2
2.3
2.4
2.6
2.7
D
A
B
C
GENERAL VENTING
3
4
5
6
7
8
9
10
12
14
16
C
FasNSeal®W2 Tee
A
B
C
Vent Dia. Eff. Lgth
A
C
B
GENERAL VENTING
D
7.3
8.3
9.3
10.3
11.3
12.3
13.3
14.3
16.3
20.3
22.3
4.5
4.8
5.3
5.8
6.3
6.8
7.3
7.8
9.0
11.0
12.0
Product
Number
Part
Number
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
8.5
9.5
100175
100176
100177
100178
100179
100180
100181
100182
100183
100184
100185
W2-T3
W2-T4
W2-T5
W2-T6
W2-T7
W2-T8
W2-T9
W2-T10
W2-T12
W2-T14
W2-T16
D
Product
Number
Part
Number
100205
100206
100207
100208
100209
100210
100211
100212
100213
100214
100215
W2-TC3
W2-TC4
W2-TC5
W2-TC6
W2-TC7
W2-TC8
W2-TC9
W2-TC10
W2-TC12
W2-TC14
W2-TC16
Product
Number
Part
Number
100220
100221
100222
100223
100224
100225
100226
100227
100228
100229
100230
W2-DF3
W2-DF4
W2-DF5
W2-DF6
W2-DF7
W2-DF8
W2-DF9
W2-DF10
W2-DF12
W2-DF14
W2-DF16
FasNSeal®W2 Tee Cap
A
B
C
Vent Dia. Eff. Lgth
A
3
4
5
6
7
8
9
10
12
14
16
B
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
FasNSeal®W2 Drain Fitting
A
B
C
Vent Dia. Eff. Lgth
A
3
4
5
6
7
8
9
10
12
14
16
B
H O R I Z O N TA L
VENTING
3
4
5
6
7
8
9
10
12
14
16
D
D
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
FasNSeal Single Wall &
FasNSeal®W2 Double Wall
are interchangeable
B
FasNSeal® Bird Screen
A
A
B
C
Vent Dia. Eff. Lgth
3
4
2.0
2.0
6
D
Product
Number
Part
Number
300186
300187
FSBS3
FSBS4
FasNSeal® 23 Degree Bird Screen
A
B
C
Vent Dia. Eff. Lgth
5
6
7
8
9
10
12
14
16
D
4.8
5.6
6.4
7.1
7.9
8.7
10.2
11.7
13.2
B
Product
Number
Part
Number
300188
300189
300190
300191
300192
300193
300194
300195
300196
FSBS5
FSBS6
FSBS7
FSBS8
FSBS9
FSBS10
FSBS12
FSBS14
FSBS16
Product
Number
Part
Number
300311
300312
300313
300314
FSTT3
FSTT4
FSTT5
FSTT6
A
B
FasNSeal® Termination Tee
A
B
C
Vent Dia. Eff. Lgth
3
4
5
6
3.0
3.5
4.0
4.5
D
6.0
7.0
8.0
9.0
C
A
C
A
B
Vent Dia. Eff. Lgth
3
4
2.3
2.3
D
A
FasNSeal® Termination Box
C
D
Product
Number
Part
Number
2.0
2.0
5.0
6.0
300500
300501
FSTB3
FSTB4
B
FasNSeal®W2 Wall Thimble with Adjustable Vent Length
A
Vent Dia.
B
C
D
Product
Number
Part
Number
3*
4*
5*
6
7
8
9
10
12
14
16
10.0
11.0
12.0
13.0
14.0
15.0
16.0
17.0
19.0
21.0
23.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
18.0
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
1.8
100280
100281
100282
100283
100284
100285
100286
100287
100289
100290
100291
W2-WT3
W2-WT4
W2-WT5
W2-WT6
W2-WT7
W2-WT8
W2-WT9
W2-WT10
W2-WT12
W2-WT14
W2-WT16
Product
Number
Part
Number
300601
300602
300603
300604
300605
300606
300607
FSWPT4
FSWPT5
FSWPT6
FSWPT7
FSWPT8
FSWPT9
FSWPT10
B
A
D
*MIN 4.5
MAX 9.0
B
3*
4*
5*
6
7
8
9
11.0
11.0
12.0
13.0
14.0
15.0
16.0
C
D
7
C
*MIN 4.5
M AX 9.0
MIN 6.0
MAX 12.0
FasNSeal® Wall Pass Through
Vent
Dia.
MIN 6.0
MAX 12.0
B
H O R I Z O N TA L
For technical or marketing information visit our
website at www.protechinfo.com. You can
contact our technical department at
support@protechinfo.com or call 1.800.766.3473
should you prefer personal technical support.
FasNSeal® Firestop/Flat Flashing
B
C
VERTICAL VENTING
C
A
Vent Dia.
B
C
D
3
4
5
6
7
8
9
10
12
14
16
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
13.0
15.0
17.0
15.0
17.0
17.0
19.0
19.0
22.0
22.0
23.0
25.0
27.0
29.0
Product
Number
300296
300297
300298
300299
300300
300301
300302
300480
300481
300482
300483
Part
Number
FSFS4
FSFS5
FSFS6
FSFS7
FSFS8
FSFS9
FSFS10
FSFS11
FSFS13
FSFS15
FSFS17
FasNSeal® Support Clamp
B
C
C
A
Vent Dia.
B
C
3
4
5
6
7
8
9
10
12
14
16
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
13.0
15.0
17.0
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
D
Product
Number
Part
Number
300361
300362
300363
300364
300365
300366
300367
300484
300485
300486
300487
FSCL4
FSCL5
FSCL6
FSCL7
FSCL8
FSCL9
FSCL10
FSCL11
FSCL13
FSCL15
FSCL17
Product
Number
Part
Number
300431
300432
300433
300434
300435
300436
300437
300492
300493
300494
300495
FSWB4
FSWB5
FSWB6
FSWB7
FSWB8
FSWB9
FSWB10
FSWB11
FSWB13
FSWB15
FSWB17
D
Product
Number
Part
Number
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
100325
100326
100327
100328
100329
100330
100331
100332
100333
100334
100335
W2-RC3
W2-RC4
W2-RC5
W2-RC6
W2-RC7
W2-RC8
W2-RC9
W2-RC10
W2-RC12
W2-RC14
W2-RC16
FasNSeal® Wall Bracket
B
C
C
B
D
A
A
Vent Dia.
B
C
D
3
4
5
6
7
8
9
10
12
14
16
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
13.0
15.0
17.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.5
9.5
10.5
FasNSeal®W2 Rain Cap
A
Vent Dia.
B
C
3
4
5
6
7
8
9
10
12
14
16
3.5
4.5
5.8
6.8
7.8
8.8
10.0
11.0
13.0
15.0
17.0
6.8
8.9
11.3
13.5
15.8
18.0
20.0
22.0
27.0
31.0
36.0
8
FasNSeal® Variable Pitch Roof Flashing
B
C
3
4
5
6
7
8
9
10
12
14
16
5.2
6.2
7.2
8.2
9.2
10.2
11.2
12.2
14.2
16.2
18.2
8.7
8.7
8.7
8.7
8.7
8.7
8.7
8.7
8.7
8.7
8.7
D
Product
Number
Part
Number
300922
300923
300924
300925
300926
300927
300928
300929
300930
300931
300932
FSVPF3
FSVPF4
FSVPF5
FSVPF6
FSVPF7
FSVPF8
FSVPF9
FSVPF10
FSVPF12
FSVPF14
FSVPF16
Product
Number
Part
Number
300945
300946
300947
300948
300949
300950
300952
300970
300971
300972
300973
FSC4
FSC5
FSC6
FSC7
FSC8
FSC9
FSC10
FSC11
FSC13
FSC15
FSC17
FasNSeal® Storm Collar
Vent
Dia.
B
3
4
5
6
7
8
9
10
12
14
16
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
13.0
15.0
17.0
C
B
VERTICAL VENTING
Vent
Dia.
C
B
D
FasNSeal®W2 Universal Appliance Adapter
A
B
Vent Dia. Eff. Lgth
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
6.0
D
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
Product
Number
Part
Number
100340
100341
100557
100412
100413
100414
100415
100416
100417
100418
100419
W2-AA3
W2-AA4
W2-AA5
W2-AA6
W2-AA7
W2-AA8
W2-AA9
W2-AA10
W2-AA12
W2-AA14
W2-AA16
C
B
A
A
FasNSeal®W2 to FasNSeal® Single Wall Adapter
A
B
Vent Dia. Eff. Lgth
3
4
5
6
7
8
9
10
12
14
16
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
C
D
Product
Number
100193
100194
100195
100196
100197
100198
100199
100200
100201
100202
100203
9
Part
Number
FSA-DWSW3
FSA-DWSW4
FSA-DWSW5
FSA-DWSW6
FSA-DWSW7
FSA-DWSW8
FSA-DWSW9
FSA-DWSW10
FSA-DWSW12
FSA-DWSW14
FSA-DWSW16
B
ADAPTERS
3
4
5
6
7
8
9
10
12
14
16
C
A
FasNSeal® Single Wall to FasNSeal®W2 Adapter
A
B
Vent Dia. Eff. Lgth
C
ADAPTERS
B
B
3
4
5
6
7
8
9
10
12
14
16
D
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
Product
Number
100141
100142
100143
100144
100145
100146
100147
100148
100149
100150
100151
Part
Number
FSA-SWDW3
FSA-SWDW4
FSA-SWDW5
FSA-SWDW6
FSA-SWDW7
FSA-SWDW8
FSA-SWDW9
FSA-SWDW10
FSA-SWDW12
FSA-SWDW14
FSA-SWDW16
For a complete list of Adapters call
1.800.766.3473
Ask for Literature Number 1202
C
B
FasNSeal®W2 Increaser
A
C
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
C
A
Vent Dia.
B
4
5.0
C
D
Eff. Lgth
4.3
Product
Number
Part
Number
100381
W2-45I
Increasers can be ordered to adjoin any size combination of pieces.
FasNSeal®W2 Reducer
A
A
Vent Dia.
B
C
Eff. Lgth
7
5.0
4.3
D
Product
Number
Part
Number
100638
W2-75R
Reducers can be ordered to adjoin any size combination of pieces.
Marketing Support
Training
Our Marketing Department is here to help all of us succeed.
We have a large selection of literature, direct mail
postcards, ad slicks, promotional t-shirts, hats and much
more. Take advantage of our co-op advertising program
and we’ll even help you design the ad, target a direct mail
project or come up with creative sales promotions. Call us
anytime to request free literature and discuss marketing
opportunities available to you.
PTS offers a variety of
technical and sales training opportunities specializing in vent design for
Category I, II, III and IV
heating appliances;
codes and standards. We will be happy to provide training
seminars.
Customer Support
Website Convenience
PTS prides itself on providing the best customer service
and marketing support in the industry. Our Customer
Support Team is available to answer technical questions,
set up training seminars, request
literature and assist with marketing
plans. Please call us MondayFriday at 1.800.766.3473 or e-mail
us at support@protechinfo.com.
The PTS website offers information about products that
directly effect consumer safety and efficient
performance of heating equipment. It is complete with
a literature library, allowing the download of brochures,
technical specifications and installation instructions.
Users should be
aware that all
information is
copyrighted and
may not be
reproduced or
altered without
written consent
from PTS.
10
FasNSeal Double-Wall vent for
Category II, III, and IV appliances
Complete Venting Solutions
FasNSeal W2
Installation Instructions
A MAJOR CAUSE OF VENT RELATED FIRES IS FAILURE
TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO
COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE
THAT FasNSeal W2 BE INSTALLED ONLY IN ACCORDANCE WITH
THESE INSTRUCTIONS.
NOTE:
Read through all of these instructions
before beginning your installation. Failure
to install as described in this instruction
will void the manufacturer’s warranty, and
may have an effect on your homeowner’s
insurance and UL listing status. Keep these
instructions for future reference.
Dear Customer, Installer, or End User:
I welcome any comments regarding matters
pertaining to our Simpson Dura-Vent products.
I welcome any ideas, input or complaints and
I’ll make sure that someone responds directly
back to you.
Send your emails to:
president@duravent.com
If you are searching for tech support or product
information, please phone us at 800-835-4429.
Or email us at:
techsupport@duravent.com
Sincerely,
Steve Eberhard, President and CEO
Simpson Dura-Vent Co., Inc.
UL Listed to UL 1738 and ULC S636
CONTENTS
FasNSeal W2
FASNSEAL DOUBLE-WALL VENT FOR CATEGORY II, III, AND IV APPLIANCES
Introduction; General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Vent Size and Length; Adjustable Vent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Joint Connections; Appliance Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Condensate Drains; Horizontal Through-The-Wall Installation.. . . . . . . . . . . 7
Vertical Through-The-Roof Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Exterior Wall Bracket Installation; Venting Through Masonry Chimney. . . .10
Important Notice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3
introduction
FasNSeal W2, manufactured by Simpson DuraVent, is a Double-Wall special stainless steel
vent system for gas fired appliances listed as
Category II, III, and IV or in Canada, Type BH
Gas Venting Systems as noted in ULC-636, with
a rated operating temperature of 480 Degrees F
(249 Degrees C), and a rated positive pressure
of 6” Water Column.
FasNSeal W2 must be installed by an
experienced professional familiar with
the operation and maintenance of heating
appliances and venting. Before installing
this product, examine all components
for possible shipping damage and read
the complete installation manual. Failure
to follow proper installation procedures,
including vent pitch and improper appliance
connections may cause unsafe conditions.
Simpson Dura-Vent recommends the system to
be inspected once a year by a qualified service
technician.
When venting Category II, III, or IV appliances,
FasNSeal W2 must be used for the entire
length of the system. Do not mix pipe, fittings,
or joining methods from different manufacturers.
See the Dura-Vent catalog number L820 for
a complete list of parts and products. Every
vent system must be planned and installed
for optimum performance and safety. The
venting system must be free to expand and
contract and must be supported in accordance
with these instructions. (Check for unrestricted
vent movement through walls, ceilings, and
roof penetrations). Refer to the gas appliance
manufacturer’s instructions to determine venting
requirements and limitations with respect to
installation and use of the appliance.
4
It is the responsibility of the installer to
contact local building and fire officials
concerning any installation restrictions
and/or inspection requirements that may
apply.
Permits may be required before starting an
installation. This product must be installed
in accordance with local building code
requirements as well as National codes: USA National Fuel Gas Code ANSI-Z223.1 or NFPA
Standard 54, or NFPA 211. In CANADA - CAN/
CGA-B149.1 or CAN/CGA-B149.2 Propane
Installation Code as applicable.
GENERAL INSTALLATION
REQUIREMENTS
Failure to conform with these installation
instructions and all applicable codes may
result in catastrophic property damage,
personal injury, or death. These instructions
are a guide to assist a professional installer.
• Proper operation of the vent system and
appliance depends on the use and correct
assembly of all parts specified for a particular
installation.
• Tee sections should only be incorporated
in conjunction with a drain on appliances
tested for use with a drain, or if allowed by the
appliance manufacturer for multiple appliance
connections.
• If required by the appliance manufacturer,
a drain fitting must be located as close
as possible to the appliance flue outlet.
Depending on the arrangement of the vent,
more than one drain may be required.
Unless a drain fitting is supplied with the
appliance, install a FasNSeal W2 Drain Fitting.
• More than one Category II, III or IV appliance
may not be connected into the same vent
system, unless the appliance manufacturer
specifically approved such a system and the
appliances are designed for multiple venting.
Cat. II, III or IV appliances may not be common
vented with Cat. I, natural draft appliances.
• FasNSeal W2 must not come in contact with
plumbing or electrical systems.
• Maintain rated clearances to combustibles
over the entire length of the vent system.
• Except for installation in one or two family
dwellings, a vent system that extends through
any zone above that on which the connected
appliance is located, shall be provided with
an enclosure having a fire resistance rating
equal to or greater than that of the floor or roof
assemblies through which it passes.
2.00”
(2)
W2- AVL
18.00”
Overall
Length
(1)
12.00”
Adjustability
(4)
NOTE: WHEN INSTALLING FasNSeal
W2 OF 5” DIAMETER OR GREATER,
ANY ENCLOSURES MUST BE OF NONCOMBUSTIBLE ATERIALS!
• Never install FasNSeal W2 on an appliance
that is not listed for use with a Special Gas
Vent or Type BH vent.
• FasNSeal W2 shall not be routed into,
through, or within any vent, such as an existing
masonry or factory-built chimney, that is
connected to another appliance.
• Do not install insulation in any required
clearance space around FasNSeal W2.
Note: Follow appliance manufacturer’s
allowances for elbows.
VENT SIZE AND LENGTH
Refer to the appliance manufacturer’s
installation instructions for proper size and
vent configuration. Follow any horizontal/
vertical length and height limitations, minimum
clearances (air space) to combustibles, or
specifications for the use of Elbows, Tees, or
Drain Tees.
4.00”
Penetration
(3)
W2 Vent
Length
FASNSEAL W2 ADJUSTABLE
VENT LENGTH
The W2-AVL Adjustable Vent Length is
available in all diameters and allows the
installer to easily adjust the vertical or
horizontal length of a vent system. Cutting, or
piecing together several vent lengths can be
avoided.
The W2-WT Wall Thimble already incorporates
the W2-AVL. In most system layouts, this
provides enough adjustability for the horizontal
vent run.
5
The W2-AVL must penetrate no less than 4” into
a standard vent length (3) to assure a good seal
and structural stability.
This leaves up to 12” in true axial adjustability (4).
JOINT CONNECTIONS
Correct Joint Connection.
Male/Female sections fully engaged.
The female end of each FasNSeal W2
component incorporates a sealing gasket. The
mechanical locking band is built into the outer
tube of FasNSeal W2 male end. Examine all
components prior to installation. Gaskets must
be in proper position or flue gases could leak
and result in carbon monoxide poisoning.
1. Insert the male end into the female section.
Push the units together and turn them until
the bead of the male end is seated against
the flared end of the female section (see
photo to the right). From within the tube,
the sealing gasket must not be visible. This
creates the needed airtight seal for Category
II, III or IV appliances. Align the seams on the
vent lengths and orient them upward in all
horizontal applications.
2. Tighten the locking band with a nut driver
until snug plus 1/4 turn.
Before proceeding, recheck all joints and
ensure that all male sections extend to the
top of the flared female end and all clamps
are tightened.
INCORRECT Joint Connection.
Male/Female sections NOT fully engaged.
Use the W2-AVL vertically for easy adjustment
of the required minimum 1/4” per foot pitch.
Technical details about the stand alone W2-AVL:
The overall length of all FSAVL Adjustable Vent
Length is 18” (1).
The female end (2) measures 2”, leaving 12” to
telescope into a standard vent length.
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Stop bead on male end must be pushed
directly against the flared end of the female
end. When checking the inside of the joint, the
gasket is fully covered and out of sight.
APPLIANCE CONNECTION
Connect FasNSeal W2 to the appliance
flue collar as directed in the appliance
manufacturer’s instructions. If the appliance
flue collar is not designed to accept FasNSeal
W2 directly, an adapter may be available.
Some appliance adapters may require a
Single-wall to Double-wall Transition Adapter.
CONDENSATE DRAINS
If instructions or local regulations call for a
condensate drain, use a FasNSeal W2 Drain
Fitting and a 5/8” ID plastic tube of appropriate
size to connect the Tee into the sanitary sewer
drain. Always create a siphon loop in the
plastic tube. Follow all local and national codes
for draining acidic effluent. Do not use copper
as a drain as it may corrode.
HORIZONTAL, THROUGH THE
WALL INSTALLATION
• When venting through a sidewall, terminate
the system not less than 12” (.3m) above
the ground and above the snow line in
geographical areas where snow accumulates.
The termination area must be kept clear of
snow and ice at all times.
• Terminate the system at least 7’ (2.1m) above
a public walkway or driveway, no less than 6’
(1.8m) from the combustion air intake of any
appliance or 3’ (.9m) from any other building
Termination Tee or
Bird Screen
6’ Max.
Horizontal Drain Tee
or Drain Fitting with Tee
Elbow
Hanger
Strap
Wall
Thimble
To Drain Dispose
of Condensate
According to
Local Codes
Appliance Adaptor
Appliance
Hoizontal Through-The-Wall Installation
7
Inside Building
Surface
Part B
1.0”
1.5”
To Appliance
Outside
Building
Surface
Part A
To Termination
4.3” - 8.6”
2” x 6” Stud
(Combustibles)
Wall Thimble Installation
opening, gas utility meter, service regulator or
the like. It also shall terminate at least 3’ (.9m)
above any forced air inlet within 10’ (3.1m)
and shall terminate at least 4’ (1.2m) below, 4’
horizontally from or 1’ (.3m) above any door,
window, or gravity air inlet into any building as
provided in the National Fuel Gas Code ANSI
Z223.1 and NFPA 54. Proper judgement may
require greater distances depending on the
size of the equipment installed or to allow for
snow drifting or falling from overhead roofs or
trees. The termination should be far enough
away from trees, shrubs or decorative items to
prevent damage.
• The total vent length from the appliance
flue collar to the outside termination shall not
be greater than specified in the appliance
manufacturer’s instructions.
• A horizontal installation shall have a slope
(upwards or downwards for Category II, III, or
IV appliances) of no less than 1/4” (6.4mm)
every 12” (305mm) to prevent collection of
condensates, formation of ice build up, or
blockage at any location within the assembly.
Refer to appliance manufacturer’s installation
instructions for further details regarding the
installation of condensate drain fittings and the
pitch of the system.
• Use non-combustible hanger straps a
minimum of every 6’ (1.8m) to support the
8
vent system from ceiling joints or other solid
structures. Do not puncture the vent system!
1. Determine the location and install the Wall
Thimble so that a continuous minimum slope
of 1/4” per foot is maintained in any horizontal
portion of the vent system.
Condensate must flow freely and may not
be retained in any part of the vent system.
2. Cut the opening for the Wall Thimble to
allow the spacer tabs protruding from the outer
plate to sit comfortably within the opening.
(See Wall Thimble Installation diagram)
• NOTE: The opening for the W2 Wall Thimble
will be 6-inches larger than the vent diameter,
e.g. 3” vent system will need an wall opening
of 9” to allow spacer tabs to rest within the
opening.
3. Position Part A into the opening so that the
gasketed end of the Wall Thimble is located on
the outside of the structure.
4. Apply a bead of silicone between the two
surfaces and around the edges before nailing
or screwing the plate on Part A to the outside
of the structure.
5. From the inside, slide the sleeve of Part B
onto the sleeve of Part A until Part B’s plate
is flush against the inside structure surface.
Fasten with screws or nails.
• NOTE: When terminating through a noncombustible wall, the wall thimble is optional.
6. Use a Termination Tee or a Birdscreen to
finish the system’s exterior.
7. When the vent system must pass through
an interior wall, use a Wall Pass Through
(FSWPT). Cut the same size hole for the
FSWPT as was cut for the Wall Thimble and
install using the same method.
8. Assemble FasNSeal W2 from the appliance
towards the Wall Thimble. Refer to “Joint
Connections” in these installation instructions
for procedure. (see photos on pg 2)
Do not drill through or penetrate any part of
the vent system.
RAINCAP
STORM
COLLAR
VERTICAL, THROUGH THE roof
INSTALLATION
• Terminate the system 6’ (1.8m) from the
combustion air intake of any appliance.
• Terminate the system at least 3’ (.9m) from
any other building opening, gas utility meter,
service regulator or the like.
• Terminate the system at least 2’ (.61m) above
the roofline and any wall or vertical structure
closer than 8’ (2.4m). Additional support is
required for systems that extend more than 6’
(1.8m) above the roofline.
Enclose residential exterior vent systems
below the roof line or use FasNSeal W2 to limit
condensation and protect against mechanical
failure.
• Install a Wall Bracket after every transition
from horizontal to a vertical run of over 10’
(3.05m), a minimum of every 12’ (3.66m)
of vertical run, and after any offset in the
vertical run. (See Detailed FNS Wall Bracket
Installation).
• Unless FasNSeal W2 is installed in a fire
rated shaft, a fire stop and support is required
when penetrating fire rated floors, walls or
ceilings.
• The total equivalent vent length from
appliance flue collar to the termination shall
not be greater than specified in the appliance
manufacturer’s installation instructions.
• A FasNSeal W2 Rain Cap or any other
provision as required by the appliance
manufacturer must be used to keep rain or
debris out of the vent.
1. Locate the path for the vent system.
2. Cut and frame openings in floors and
ceilings to accommodate Firestops.
ADJUSTABLE
FLASHING
SUPPORT
CLAMP
HANGER
APPLIANCE
ADAPTER
FIRESTOP
FIRESTOP
HORIZONTAL DRAIN
TEE OR DRAIN FITTING W/TEE
TO DRAIN. DISPOSE OF
CONDENSATES ACCORDING
TO LOCAL CODES
APPLIANCE
Vertical Through the
Roof Installation
3. Cut the opening so the minimum clearance
between the outer sleeve & any combustibles
is maintained.
4. When installing on a pitched roof, place
the Roof Flashing under the roofing material
up slope from the vent and above the roofing
material below the vent. Seal as required.
5. Begin installing FasNSeal W2 from the
appliance upward.
6. Now begin installing FasNSeal W2 from the
appliance upward.
7. Once FasNSeal W2 reaches the roof line,
slide the Storm Collar over the vent length.
Apply a bead of silicone sealant where the
Storm Collar rest on the flashing. Tighten the
clamp of the Storm Collar to achieve a snug fit.
8. Add additional vent lengths as needed.
9. Attach Rain Cap or Termination Cone to
finish.
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10.To inspect the vent system, open the
locking band and remove the Rain Cap.
FasNSeal EXTERIOR WALL
BRACKETS
Pre-Installation
1. Wall Brackets must be securely fastened
to a solid member of the building using
appropriate fasteners - Tapcon screws for solid
masonry, wood screws for wood framing or
sheet metal screws for structural steel.
2. A Wall Bracket must be installed after any
transition from horizontal to a vertical run of 10
feet or more, after every 12 feet of vertical run
or after any offset in a vertical run.
Installation
1. Use the Wall Bracket as a template for
marking the hole locations on the wall surface.
2. If the Wall Bracket is secured to a masonry
structure, drill 3/16 pilot holes for 1/4” Tapcon
screws.
3. If the Wall Bracket is secured to a steel
structure, drill and tap holes for 1/4-20 screws.
4. If the Wall Bracket is secured to a wood
structure, it may be helpful to pre-drill for #8
wood screws.
5. Always install a 1” diameter washer
between each fastener and Wall Bracket.
6. Securely attach the Wall Bracket using the
appropriate fasteners to the wall.
7. Tighten Wall Bracket to FasNSeal tubing
using 45-50 in/lb torque.
10
VENTING THROUGH A MASONRY
CHIMNEY
When using the FasNSeal W2 Vent System
inside a masonry structure, follow FasNSeal
Installation Guide for Lining a Masonry
Chimney (Lit #1225) for general guidelines.
The detailed instructions can be obtained by
calling 1.800.766.3473 or downloading them
from our website www.duravent.com When
using FasNSeal W2 to vent Category I natural
draft appliances, remove the gaskets.
IMPORTANT NOTICE
The UL listing for this product is void if
components other than those supplied as
Listed Components are used. All warranties,
stated or implied, are void if this product and
the appliances to which it is connected are not
installed in accordance with their respective
instructions and local code requirements.
After the installation, check the entire system
to make sure all joints are secure and sealed
correctly. The seams and joints must be
checked for gas tightness when using the
venting system with Category II, III or IV
appliances. Simpson Dura-Vent recommends
that the entire system be checked by a
qualified inspector at least once annually
following initial installation.
The installation must conform to the
requirements of the appliance manufacturer’s
instructions, the National Fuel Gas Code and
local codes and regulations.
SIMPSON DURA-VENT LIMITED LIFETIME WARRANTY
Simpson Dura-Vent Company, Inc. (“Simpson”) provides this limited lifetime warranty for all of its products to the original purchaser. Subject to
the limitations set forth below, Simpson warrants that its products will be free from substantial defects in material or manufacturing, if properly
installed, maintained and used. This Warranty is non-transferable and does not cover normal wear and tear, smoke damage or damage caused by
chimney fires, acts of God, or any product that was: (1) purchased other than from an authorized Simpson dealer, retailer or distributor; (2) modified or altered; (3) improperly serviced, inspected or cleaned; or (4) subject to negligence or any use not in accordance with the printed materials
provided with the product as determined by Simpson. This limited lifetime warranty applies only to parts manufactured by Simpson.
Simpson provides the following warranties for its products: One Hundred Percent (100%) of the purchase price or MSRP at time of purchase,
whichever is lower, for 15 years from the date of purchase, and Fifty Percent (50%) thereafter, except for the following limitations: all Termination
Caps and DuraBlack® are warranted at One Hundred Percent (100%) for five years, and at Ten Percent (10%) thereafter.
All warranty obligations of Simpson shall be limited to repair or replacement of the defective product pursuant to the terms and conditions applicable to each product line. These remedies shall constitute Simpson’s sole obligation and sole remedy under this limited warranty. This warranty
provides no cash surrender value. The terms and conditions of this limited lifetime warranty may not be modified, altered or waived by any action,
inaction or representation, whether oral or in writing, except upon the express, written authority of an executive officer of Simpson.
LIMITATIONS ON INTERNET SALES:
Notwithstanding any other terms or conditions of this limited lifetime warranty, Simpson provides no warranty for the following specific products if
such products are both: (a) purchased from an Internet seller; and (b) not installed by a qualified professional installer: DuraTech®, DuraPlus HTC®,
PelletVent Pro®, FasnSeal®, and Simpson’s relining products including DuraLiner®, DuraFlex® 304, DuraFlex® 316, DuraFlex® Pro, DuraFlex® SW, and
Ventinox®. For purposes of this warranty, a trained professional installer is defined as one of the following: licensed contractors with prior chimney
installation experience, CSIA Certified Chimney Sweeps, NFI Certified Specialists, or WETT Certified Professionals.
Simpson reserves the right to inspect defective product to determine if it qualifies for replacement under the terms of this limited lifetime warranty.
All warranty claims must be submitted with proof of purchase. Labor and installation costs are not covered under this warranty. To obtain warranty
service contact Simpson promptly at Simpson Dura-Vent Warranty Service, 877 Cotting Ct., Vacaville CA 95688, or call 800-835-4429.
WHERE LAWFUL, SIMPSON DISCLAIMS ALL OTHER WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL SIMPSON BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR SPECIAL DAMAGES OR
DIRECT OR INDIRECT LOSS OF ANY KIND, INCLUDING BUT NOT LIMITED TO PROPERTY DAMAGE AND PERSONAL INJURY. SIMPSON’S ENTIRE LIABILITY
IS LIMITED TO THE PURCHASE PRICE OF THIS PRODUCT. SOME STATES DO NOT ALLOW LIMITATIONS ON IMPLIED WARRANTIES, OR THE EXCLUSION
OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. THIS LIMITED
WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE.
For the most up-to-date installation instructions, see www. duravent.com
REV 2.5.09
Simpson Dura-Vent, Inc
PO Box 1510
Vacaville CA 95696-1510
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Manufactured in Vacaville CA
and Albany NY
Limited
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Lifetime
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Customer Service Support 800-835-4429 707-446-4740 FAX wwww.duravent.com
FasNSeal is a registered trademark of the Simpson Dura-Vent Co., Inc.
All rights reserved, 2010 Made in the USA. Simpson Dura-Vent is a division of Simpson Manufacturing Company. NYSE:SSD.
L1191 2/2010