Modine Manufacturing HCP, HPP Installation And Service Manual

5-572.10
5H0762330001
January, 2020
INSTALLATION AND SERVICE MANUAL
indirect gas-fired weatherproof make-up air units
models HBP/HCP/HDP/HPP
OBP/OCP/ODP/OPP
All models approved for use in California by the CEC.
WARNING
1. Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, injury or death, and could cause
exposure to substances which have been
determined by various state agencies to
cause cancer, birth defects or other
reproductive harm. Read the installation,
operating and maintenance instructions
thoroughly before installing or servicing this
equipment.
2. Installing, starting up and servicing heating,
ventilation and air conditioning equipment
poses significant hazards and requires
specialized knowledge of Modine products
and training in performing those services.
Failure to have any service properly
performed by, or making any modification
to Modine equipment without the use of,
qualified service personnel could result in
serious injury to person and property,
including death. Therefore, only qualified
service personnel should work on any
Modine products.
CAUTION
To prevent premature heat exchanger failure
do not locate ANY gas-fired units in areas
where chlorinated, halogenated, or acid
vapors are present in the atmosphere.
FOR YOUR SAFETY
IF YOU SMELL GAS:
1. Open windows.
2. Don’t touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
FOR YOUR SAFETY
The use and storage of gasoline or other
flammable vapors and liquids in open containers
in the vicinity of this appliance is hazardous.
IMPORTANT
The use of this manual is specifically intended
for a qualified installation and service agency.
A qualified installation and service agency
must perform all installation and service of
these appliances.
Inspection on Arrival
1. Inspect unit upon arrival. In case of damage, report it
immediately to transportation company and your local
factory sales representative.
2. Check rating plate on unit to verify that power supply meets
available electric power at the point of installation.
3. Inspect unit upon arrival for conformance with description of
product ordered (including specifications where applicable).
THIS MANUAL IS THE PROPERTY OF THE OWNER.
PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.
SPECIAL PRECAUTIONS
SPECIAL PRECAUTIONS
THE INSTALLATION AND MAINTENANCE INSTRUCTIONS
IN THIS MANUAL MUST BE FOLLOWED TO PROVIDE
SAFE, EFFICIENT AND TROUBLE-FREE OPERATION. IN
ADDITION, PARTICULAR CARE MUST BE EXERCISED
REGARDING THE SPECIAL PRECAUTIONS LISTED
BELOW. FAILURE TO PROPERLY ADDRESS THESE
CRITICAL AREAS COULD RESULT IN PROPERTY
DAMAGE OR LOSS, PERSONAL INJURY, OR DEATH.
THESE INSTRUCTIONS ARE SUBJECT TO ANY MORE
RESTRICTIVE LOCAL OR NATIONAL CODES.
HAZARD INTENSITY LEVELS
1. DANGER: Indicates an imminently hazardous situation
which, if not avoided, WILL result in death or serious injury.
2. WARNING: Indicates a potentially hazardous situation
which, if not avoided, COULD result in death or serious injury.
3. CAUTION: Indicates a potentially hazardous situation
which, if not avoided, MAY result in minor or moderate injury.
4. IMPORTANT: Indicates a situation which, if not avoided,
MAY result in a potential safety concern.
WARNING
(continued from previous column)
9. When servicing or repairing this equipment, use only
factory-approved service replacement parts. A complete
replacement parts list may be obtained by contacting
Modine Manufacturing Company. Refer to the rating
plate on the appliance for complete appliance model
number, serial number, and company address. Any
substitution of parts or controls not approved by the
factory will be at the owners risk.
CAUTION
1.
Appliances are designed for outdoor installation only.
DO NOT LOCATE APPLIANCES INDOORS.
Purging of air from gas lines should be performed as
described in ANSI Z223.1 - latest edition “National Fuel
Gas Code”, or in Canada in CAN/CGA-B149 codes.
Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not 5% less than the rated
voltage.
Do not reuse any mechanical or electrical component
which has been wet. Such component must be replaced.
2.
3.
DANGER
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
4.
WARNING
1.
Failure to follow proper lifting instructions and applicable
safety procedures could result in property damage,
serious injury, or death. Lifting should only be done by a
qualified rigging company. Use ALL lifting points. Test
lift to ensure proper balance and rigging. Never lift in
high winds.
2. All field gas piping must be pressure/leak tested prior
to operation. Never use an open flame. Use a soap
solution or equivalent for testing.
3. Gas pressure to appliance controls must never exceed
14" W.C. (1/2 psi).
4. Disconnect power supply before making wiring
connections or working on this equipment. Follow all
applicable safety procedures to prevent accidental
power up. Failure to do so can result in injury or death
from electrical shock or moving parts and may cause
equipment damage.
5. All appliances must be wired strictly in accordance with
wiring diagram furnished with the appliance. Any wiring
different from the wiring diagram could result in a hazard
to persons and property.
6. Any original factory wiring that requires replacement
must be replaced with wiring material having a
temperature rating of at least 105°C.
7. To reduce the opportunity for condensation, the
minimum sea level input to the appliance, as indicated
on the serial plate, must not be less than 5% below the
rated input, or 5% below the minimum rated input of dual
rated units.
8. Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not 5% greater than the
rated voltage.
(continued next column)
2
IMPORTANT
1.
To prevent premature heat exchanger failure, do not
locate ANY gas-fired appliances in areas where corrosive
vapors (i.e. chlorinated, halogenated or acid) are present
in the atmosphere.
To prevent premature heat exchanger failure, the input to
the appliance, as indicated on the serial plate, must not
exceed the rated input by more than 5%.
To prevent premature heat exchanger failure, observe
heat exchanger tubes by looking at the heat exchanger
through the field installed access openings in connecting
ductwork or the unit access doors where viewing the heat
exchanger is possible. If the bottom of the tubes become
red while blower and duct furnace are in operation, check
to be sure the blower has been set to the proper rpm for
the application. Refer to page 19 for Blower Adjustments.
Start-up and adjustment procedures should be performed
by a qualified service agency.
To check most of the Possible Remedies in the
troubleshooting guide listed in Table 54.1, refer to the
applicable sections of the manual.
2.
3.
4.
5.
SI (METRIC) CONVERSION FACTORS
To
Convert
Multiply By
To Obtain
To
Convert
Multiply By
“W.C.
0.24
kPa
CFH
1.699
m3/min
psig
6.893
kPa
Btu/ft3
0.037
mJ/m3
°F
(°F-32) x 0.555
°C
pound
0.453
kg
inches
25.4
mm
Btu/hr
0.000
kW
feet
0.305
meters
gallons
3.785
liters
CFM
0.028
m3/min
psig
27.7
“W.C.
5-572.10
To Obtain
TABLE OF CONTENTS
Table of Contents
Inspection on Arrival.................................................................. 1
Special Precautions................................................................... 2
SI (Metric) Conversion Factors................................................. 2
Special Design Requests.......................................................... 4
Storage Prior to Installation....................................................... 4
Unit Location............................................................................. 4
Combustible Material and Service Clearances................ 4
Sound and Vibration Levels ..................................................... 5
Curb or Sub-Base Mounting...................................................... 5
Slab Mounting .......................................................................... 6
Rigging Instructions................................................................... 6
Duct Installation/Utility Connections.......................................... 7
Venting...................................................................................... 7
Unit Installation.......................................................................... 8
Gas Connections............................................................... 8
Considerations for Elevation............................................ 10
Electrical Connections......................................................11
Evaporative Cooler.......................................................... 12
Cooling Coil Specifications and Installation..................... 14
Start-Up Procedure................................................................. 16
Pilot Burner Adjustment.................................................. 16
Main Burner Adjustment................................................. 17
Blower Adjustment.......................................................... 19
Lubrication Recommendations....................................... 19
Damper Linkage Adjustment.......................................... 19
Furnace Control Operating Sequence............................ 20
Variable Air Volume Applications.................................... 21
Cooling Coil Operation................................................... 21
Component/Option Locations.................................................. 22
Component Descriptions......................................................... 22
General Performance Data..................................................... 32
Pressure Drop Data................................................................ 34
Blower Performance Data....................................................... 35
Blower Sheave Assembly Data............................................... 38
Dimensions.............................................................................. 40
Weights.................................................................................... 48
Maintenance............................................................................ 50
Service & Troubleshooting...................................................... 54
Start-Up Checklist................................................................... 57
Model Designations................................................................. 58
Model Nomenclature............................................................... 59
Commercial Warranty................................................Back Cover
5-572.10
3
SPECIAL DESIGN REQUESTS / UNIT LOCATION
SPECIAL DESIGN REQUESTS
Modine Manufacturing Company will sometimes build units
with special features as requested by the customer. This
manual only covers standard features and does not include any
changes made for special feature requests by the customer.
Units built with special features are noted with a 5-digit SPO
(Special Product Order) Number on the Serial Plate
Figure 4.1
Combustible Material & Service Clearances j
B
STORAGE PRIOR TO INSTALLATION
If the unit is stored outside prior to installation, the unit should
be covered.
UNIT LOCATION
SIDE VIEW
DANGER
CAUTION
ACCESS
SIDE
A
Appliances are designed for outdoor installation only.
DO NOT LOCATE APPLIANCES INDOORS.
IMPORTANT
j Minimum clearance to combustible materials is 1.0" from rooftop.
Table 4.2 - Combustible Material Clearances
Minimum Combustible Material
Clearances
Location Recommendations
3.
4.
5.
6.
7.
4
C
FRONT VIEW
To prevent premature heat exchanger failure, do not locate
ANY gas-fired appliances in areas where corrosive vapors (i.e.
chlorinated, halogenated or acid) are present in the atmosphere.
2.
36.00
1.00
Appliances must not be installed where they may be exposed
to potentially explosive or flammable atmosphere.
1.
B
Power Exhauster
Discharge Cover
When locating the furnace, consider general space and
heating requirements and availability of gas and electrical
supply.
Unit must be installed on the positive pressure side of the
circulating blower.
Be sure the structural support at the unit location site is
adequate to support the weight of the unit and any other
required support structure. For proper operation the unit
must be installed in a level horizontal position.
Do not install units in locations where the flue products
can be drawn into the adjacent building openings such as
windows, fresh air intakes, etc.
Be sure that the minimum clearances to combustible
materials and recommended service clearances are
maintained. Be sure clearances are maintained to
the combustion air inlet louvers and power exhauster
discharge cover. Units are designed for installation on
non-combustible surfaces or combustible surfaces with the
minimum clearances shown in Figure 4.1 and Table 4.2.
On units that have fresh air openings, a method should be
provided to prevent water and debris from entering the unit
such as a rainhood and bird screen, evaporative cooler,
etc.
On horizontal discharge units (Model Digit 2=B or C),
adequate space must be provided to install the discharge
duct as shown in Figure 7.1. to insure even air flow across
the heat exchanger.
Recommended
Service Clearances
Model
Size
Access
Side
(A)
Front &
Rear
(B)
NonAccess
Side
(C)
Access
Side
(A)
75
18”
3”
0”
36”
100/125
20”
3”
0”
36”
150/175
25”
3”
0”
42”
200/225
27”
4”
0”
42”
250/300
30”
5”
0”
48”
350/400
41”
11”
0”
60”
500/600
30”
5”
0”
48”
700/800
41”
11”
0”
60”
840/960
41”
11”
0”
60”
5-572.10
NonAccess
Side
(C)
6”
SOUND ATTENUATION / ROOF CURB INSTALLATION
Curb or Sub-Base Mounted Sites
Sound and Vibration Levels
All mechanical equipment generates some sound and vibration
that may require attenuation. For critical areas, an acoustical
consultant should be retained to assist in the application.
Locating the equipment away from the critical area is desirable
within ducting limitations. Frequently, units can be located
above utility areas, corridors, restrooms, and other non-critical
areas. Generally, a unit should be located within 15 feet of
a primary support beam to minimize structure deflections.
Smaller defections usually results in reduced vibration and
noise transmission.
Install the unit over roof decking with 2" acoustic fiberglass
lining within curb area for sound attenuation. The return air
duct should be acoustically lined and should be installed with
a flexible connection. If the ceiling space is used as a plenum,
the acoustically lined return intake duct should form an inverted
tee with five foot minimum legs in each direction.
The discharge duct should be acoustically insulated and should
have a flexible connection as illustrated.
An optional roof curb is available to simplify site preparation
and raise the unit above roof water and snow level for drainage.
It can be installed with the roof, and in advance of the unit.
A sub-base must be furnished by the installer if no curb is
supplied for the roof. The sub-base, either steel or concrete,
must provide required support with the unit bolted to subbase. The following are some general guidelines for roof curb
installed units:
1.
The roof structure must be adequately designed to
support the live weight load of the unit and any other
required support structure. For the bearing loads normally
encountered, the roof curb should be supported at
points no greater than five feet apart. Additional truss
reinforcement should be provided, if necessary.
2.
Roof curb must be installed level. If roof is pitched it will be
necessary to construct a sub-base on which to install the
curb.
3.
Roof curbs supplied by Modine are fabricated from 16
gauge galvanized steel and supplied knocked down for
assembly on the job site. The curb consists of two side
pieces, two end pieces, gasketing, four joiner angles, four
2x4 inch wood nailing strips, nuts, bolts, and washers. Roof
curbs over 120 inches long include two additional side
pieces and two splice plates. Refer to the latest revision of
Modine literature 5-590 for instructions.
4.
Outside dimensions must be held when installing curb.
Top surface must be level and straight to insure weathertightness. All corners must be square.
5.
Final electric and gas connections must be made after unit
is installed to allow for tolerance in setting of unit on curb.
For electrical power supply allow approximately eight feet
of wire, plus provisions for weathertight flexible conduit for
connection to unit, as required by local codes.
6.
Maintain an 12-inch minimum height from top of roof deck
to top of curb.
7.
Caulk butt joints after curb is assembled and installed on
roof structural members and roof flashing is added.
Figure 5.1 - Suggested Sound Attenuation
Figure 5.2 - Typical Curb Details
Curb Gasketing*
or Caulk by Others
Counterflashing
(By Others)
Roofing
Material
(By Others)
2 x 4 Wooden
Nailing Strip*
Curb*
Insulation
(By Others)
2"Acoustic
Fiberglass
(By Others)
Cant Strip
(By Others)
Roof Insulation
(By Others)
Roof
Truss
6" Inverted
Channel
Both Sides
(By Others)
Roof Deck
*Available as a factory supplied, field installed accessory.
5-572.10
5
SLAB MOUNT INSTALLATION / RIGGING INSTRUCTIONS
Slab Mounted Units
General Rigging Instructions
WARNING
For Horizontal Discharge (Model Digit 2=B or C)
For ground level installation of a horizontal-discharge unit,
prepare a level concrete slab at least four inches thick on
adequate footings and a generous bed of gravel for drainage
(See Figure 6.1). The slab should include threaded 5/8-inch
anchor bolts spaced as shown in Figure 6.1 and Table 6.1.
Anchor bolts should extend at least 1-1/2" above the surface of
the pad to allow clearance for mounting washers, nuts and bolts
(mounting washers, nuts and bolts by others). The slab should
extend out at least six inches around the perimeter of the unit.
Figure 6.1 - Slab-Mounted Make-Up Air Unit
CONCRETE SLAB
ON GRAVEL BED
(4” MIN)
A
B
A & B ARE BETWEEN
ANCHOR POINTS
Failure to follow proper lifting instructions and applicable
safety procedures could result in property damage, serious
injury, or death. Lifting should only be done by a qualified
rigging company. Use ALL lifting points. Test lift to ensure
proper balance and rigging. Never lift in high winds.
Rigging and lifting of the units should only be done by a
qualified rigging company and follow appropriate industry
standards, including but not limited to the appropriate sections
of ASME B30, OSHA 1910, and OSHA 1926.
Four 3/4-inch holes at the extended ends of the mounting
channels are supplied to facilitate lifting the unit with eyebolts
furnished by the installer. With the lifting points identified, the
units can be lifted by crane or helicopter.
1.
Follow site preparation instructions for the roof curb, slab,
or equipment stand before installation.
2.
Check the Serial Plate(s) of unit with plans to be sure unit
is properly located. Although units may look outwardly
similar, their function, capacities, options, and accessories
will often vary.
3.
Check unit dimensions of both the unit base and the curb
or stand on which the unit will be installed.
4.
If the unit will be installed on a roof curb:
Table 6.1 - Slab Anchor Bolt Dimensions
Digit 2
Model Size
75
100/125
150/175
200/225
250/300
B
350/400
500/600
700/800
C
840/960
75
100/125
150/175
200/225
250/300
350/400
Blower Type
(Digit 16)
All
All
All
All
E, F, G, or H
I, J, or K
E, F, G, or H
I, J, or K
G or H
I, J, K, or L
G or H
I, J, K, or L
All
All
All
All
All
E, F, G, or H
I, J, or K
E, F, G, or H
I, J, or K
A
82.91
82.91
82.91
82.91
82.91
118.50
82.91
118.50
116.03
151.62
116.03
151.62
185.02
106.89
106.89
106.89
106.89
106.89
142.48
106.89
142.48
B
33.85
36.36
40.61
42.71
45.75
45.75
57.27
57.27
45.75
45.75
57.27
57.27
57.27
33.85
36.36
40.61
42.71
45.75
45.75
57.27
57.27
a.
Thoroughly clean and dry the top of the curb surface.
b.
Lay a bead of weather resistant caulking on top
perimeter of roof curb as illustrated in Figure 5.2. Note:
If roof curb is supplied by Modine, full perimeter gasket
material is supplied and caulking is not necessary.
5.
When lifting the equipment, connect sturdy steel cables,
chains, or straps with eye loops as illustrated in Figure 6.2.
For stability in lifting and lowering and to prevent damage
to the unit, include a spreader bar as shown in Figure 6.2.
Avoid twisting or uneven lifting of the unit. The cable length
from the lifting point on the unit to the spreader bar should
always be longer than the distance between the outer
lifting points.
6.
Test lift the unit to check for proper rigging balance before
hoisting to the desired installation location.
7.
Once lifted to the installation location, orient the hoisted
unit to match the ductwork locations and set evenly on the
curb or stand.
8.
Following the instructions in this manual, make final unit
connections for ductwork, utilities, and controls.
Figure 6.2 - Typical Rigging
INSTALLER’S
CABLES AND
SPREADERS
INSTALLER’S
EYE BOLTS
ROOF CURB
6
5-572.10
DUCT INSTALLATION / UTILITY CONNECTIONS
Duct Installation
1.
The blower section inlet and/or return air connections,
as well as the furnace furnace discharge are designed to
accept 90° flanged ductwork as shown in Figure 7.1. To
determine locations and dimensions of connections, refer
to the dimensional drawings later in this manual.
5.
On horizontal discharge units with Model Digit 2=B, provide
removable access panels on the downstream side of the
unit as shown in Figure 7.1. These openings should be
large enough to view smoke or reflect light inside the
casing to indicate leaks in the heat exchanger and to check
for hot spots on the heat exchanger due to a lack of
sufficient airflow (CFM). This is not required on horizontal
discharge units with Model Digit 2=C because the cooling
coil cabinet access door can be removed for this purpose.
6.
When a roof curb is used in conjunction with a factory
supplied return air connector, the ductwork can be
fastened to the connectors prior to the unit installation.
The connectors will accept 90° flanged ductwork. See
Figure 7.3.
Figure 7.1 - Duct Connections
UNIT INLET OR
DISCHARGE
OPENING
1/2"
Figure 7.3 - Discharge and/or Return Air Connectors
UNIT BASE
90° FLANGED
DUCTWORK
2.
ACCESS PANEL FOR
HORIZONTAL DISCHARGE
UNITS (MODEL DIGIT 2=B)
90° FLANGED
DUCTWORK
(BY INSTALLER)
Provide an airtight seal between the ductwork and the unit.
Seams with cracks in the ductwork should be permanently
caulked and/or taped. All duct connections outside the
building MUST be weathertight to prevent rain and snow
from entering the ductwork.
ROOF CURB
3.
Acoustic duct liners are recommended on all internal
supply and return air ducts.
RETURN AIR
CONNECTOR
4.
Provide uniform air distribution over the heat exchanger.
Use turning vanes in the supply ductwork where required
to obtain uniform air distribution. See Figure 7.2.
DISCHARGE AIR
CONNECTOR
Figure 7.2 - Recommended Discharge Duct Configs
CAULK ALL MATING SURFACES BEFORE
INSTALLING DUCTWORK TO CONNECTORS
OR SETTING THE UNIT (CAULK BY INSTALLER)
DIMENSION “B” SHOULD NEVER
BE LESS THAN 1/2 OF DIMENSION “A”
TURNING
VANES
(3” MAX)
PROVIDE LEAK TIGHT ACCESS
PANELS IN DISCHARGE DUCT
FOR HEAT EXCHANGER INSPECTION.
Utility Connections
Utility and control connections can be made to the unit from
the bottom for roof curb-mounted units or through the fixed
side panels for horizontal supply and return units. Holes can be
made in fixed side panels to accommodate utility connections
as specified according to the unit dimensional drawings.
Sealing of holes cut in the unit casing for utility connections
should be done with care to prevent air and water leaks.
Venting
1.
TURNING
VANES
(3” MAX)
PROVIDE LEAK TIGHT ACCESS
PANELS IN DISCHARGE DUCT
FOR HEAT EXCHANGER INSPECTION.
2.
3.
4.
Installation of venting must conform with local building
codes, or in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1 (NFPA 54) - Latest Edition.
In Canada, installation must be in accordance with CAN/
CGA-B149.1 for natural gas units and CAN/CGA-B149.2
for propane units.
Units are shipped with the power exhauster discharge
cover factory installed.
Do not modify or obstruct the combustion air inlet louvers
or the power exhauster discharge cover.
Do not add any vents other than those supplied by the
manufacturer.
TURNING
VANES
(3” MAX)
5-572.10
7
UNIT INSTALLATION
Gas Connections
5.
WARNING
1.All field gas piping must be pressure/leak tested prior to
operation. Never use an open flame. Use a soap solution or
equivalent for testing.
2.Gas pressure to appliance controls must never exceed
14" W.C. (1/2 psi).
3. To reduce the opportunity for condensation, the minimum
sea level input to the appliance, as indicated on the serial
plate, must not be less than 5% below the rated input, or 5%
below the minimum rated input of dual rated units.
6.
Figure 8.2
Recommended Sediment Trap/Manual Shut-off Valve
Installation - Side or Bottom Gas Connection
GAS
SUPPLY LINE
CAUTION
Purging of air from gas supply line should be performed as
described in ANSI Z223.1 - latest edition “National Fuel Gas
Code”, or in Canada in CAN/CGA-B149 codes.
GAS
SUPPLY LINE
IMPORTANT
2.
3.
Installation of piping must conform with local building codes,
or in the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.1 (NFPA 54) - Latest Edition. In Canada,
installation must be in accordance with CAN/CGA-B149.1 for
natural gas units and CAN/CGA-B149.2 for propane units.
Piping to units should conform with local and national
requirements for type and volume of gas handled, and
pressure drop allowed in the line.
Refer to Model Digits 4-6 of the Model Nomenclature on
page 59 and the value on the unit Model ID plate (not
individual furnace serial plates) to determine the gas
heating capacity in Thousands of Btu/hr (MBH). The
Model ID plate is located on the blower section electrical
compartment door. See Figure 8.1 for an example Model
ID plate.
SEDIMENT
TRAP
7.
Figure 8.1 - Model ID Plate Example
4.
8
For the length of pipe necessary, determine the pipe
diameter from Tables 9.1 or 9.2 for the unit heating
capacity. Where several units are served by the same
main, the total capacity and length of main must be
considered. While the gas connection(s) on the unit may
be smaller than the required supply pipe diameter, do
not use pipe sizes smaller than what is required leading
up to the unit. At the unit, reduce the pipe size down to
the appropriate size (sizes 75-225 are 1/2" connections,
250-960 are 3/4" connections). Avoid pipe sizes smaller
than 1/2". The inlet pressure to the unit must be 6-7" W.C.
for natural gas and 11-14" W.C. for propane gas. When
sizing the inlet gas pipe diameter, be sure the unit supply
pressure can be met after the line pressure drop has
been subtracted. If the line pressure drop is too high, refer
to NFPA 54 National Fuel Gas Code for other gas pipe
capacities.
5-572.10
MANUAL GAS
SHUT-OFF VALVE
GROUND
JOINT
UNION
W/ BRASS
SEAT
j
TO
CONTROLS
PLUGGED
1/8" NPT TEST
GAGE CONNECTION
3"
MIN.
To prevent premature heat exchanger failure, the input to the
appliance, as indicated on the serial plate, must not exceed
the rated input by more than 5%.
1.
The gas piping to the unit can enter the unit from the side
of the unit or from below. Install a ground joint union with
brass seat and a manual shut-off valve external of the unit
casing, and adjacent to the unit for emergency shut-off and
easy servicing of controls, including a 1/8" NPT plugged
tapping accessible for test gauge connection (See Figure
8.2). Verify the manual shut-off valve is gas tight on an
annual basis.
Provide a sediment trap before each unit in the line where
low spots cannot be avoided. (See Figure 8.2).
j M
anual shut-off valve is in the “OFF” position
when handle is perpendicular to pipe.
When Pressure/Leak testing, pressures above 14" W.C.
(1/2 psi), close the field installed shut-off valve, disconnect
the appliance and its combination gas control from the gas
supply line, and plug the supply line before testing. When
testing pressures 14" W.C. (1/2 psi) or below, close the
manual shut-off valve on the appliance before testing.
INSTALLATION
Table 9.3 - Burner Orifice Sizing and Gas Consumption
Table 9.1 - Gas Pipe Capacities - Natural Gas j
Capacity in MBH by Nominal Pipe Diameter
Pipe
Length (ft)
10
20
30
1∕2”
138
95
76
3∕4”
287
197
159
1”
540
371
298
40
50
60
70
80
90
100
125
150
175
200
250
65
58
53
48
44
42
40
35
32
29
27
24
135
120
109
100
93
87
83
74
66
61
57
50
255
226
205
188
175
165
155
138
125
114
107
95
1 1∕4” 1 1∕2” 2” 2 1∕2” 3”
1,113 1,659 3,203 5,103 9,009
762 1,145 2,195 3,507 6,195
612
917 1,764 2,814 4,977
524
464
420
386
360
338
319
282
256
235
219
194
784
695
630
580
540
506
478
423
384
353
329
291
1,512
1,344
1,218
1,113
1,038
974
921
816
739
680
632
561
2,405
2,132
1,932
1,775
1,659
1,554
1,470
1,302
1,176
1,082
1,008
894
75
100
4,253
3,770
3,423
3,150
2,930
2,741
2,594
2,300
2,079
1,911
1,785
1,575
125
150
175
200
225
250
G
as pipe capacities based on Table 6.2.1(a) of NFPA 54 for schedule 40
metallic pipe with inlet pressure less than 2 psi, with a pressure drop of 0.3"
w.c. and gas specific gravity of 0.60.
300
350
Table 9.2 - Gas Pipe Capacities - Propane Gas k
Pipe
Length (ft)
10
20
30
40
50
60
80
100
125
150
175
200
250
1∕2”
291
200
160
137
122
110
101
94
89
84
74
67
62
Capacity in MBH by Nominal Pipe Diameter
3∕4”
1” 1 1∕4” 1 1∕2” 2” 2 1∕2” 3”
608 1,150 2,350 3,520 6,790 10,800 19,100
418
787 1,620 2,420 4,660 7,430 13,100
336
632 1,300 1,940 3,750 5,970 10,600
287
541 1,110 1,660 3,210 5,110 9,030
255
480
985 1,480 2,840 4,530 8,000
231
434
892 1,340 2,570 4,100 7,250
212
400
821 1,230 2,370 3,770 6,670
197
372
763 1,140 2,200 3,510 6,210
185
349
716 1,070 2,070 3,290 5,820
175
330
677 1,010 1,950 3,110 5,500
155
292
600
899 1,730 2,760 4,880
140
265
543
814 1,570 2,500 4,420
129
243
500
749 1,440 2,300 4,060
‚ Gas pipe capacities based on Table 6.3.1(d) of NFPA 54 for schedule 40
metallic pipe with inlet pressure of 11.0" w.c., with a pressure drop of 0.5" w.c.
and gas specific gravity of 1.50.
Gas Type
Model
Size
400
500
l
600
l
700
l
800
l
840
m
960
m
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Cfh
Orifice Drill Size
Natural j
Propane k
72.1
20
96.1
30
120.2
25
144.2
30
168.3
27
192.3
23
216.3
20
240.4
25
288.7
20
336.5
27
384.6
23
240.4
25
288.7
20
336.5
27
384.6
23
336.5
27
384.6
23
30.0
39
40.0
45
50.0
42
60.0
45
70.0
43
80.0
42
90.0
39
100.0
42
120.0
39
140.0
43
160.0
42
100.0
42
120.0
39
140.0
43
160.0
42
140.0
43
160.0
42
Orifice
Qty
1
2
2
3
3
3
3
4
4
6
6
4
4
6
6
6
6
j
Based on natural gas properties of 1050 Btu/ft³ and specific gravity of 0.60.
k
Based on propane gas properties of 2500 Btu/ft³ and specific gravity of 1.50.
l
Model sizes 500-800 contain 2 furnaces. Values shown are per furnace.
m
Model sizes 840-960 contain 3 furnaces. Values shown are per furnace.
5-572.10
9
INSTALLATION
Considerations for Elevation
The standard ratings for the duct furnace(s) used in these units
are certified for elevations up to 2000 feet above sea level.
Operation at elevations above 2,000 feet requires ratings be
reduced 4% for each 1000 feet above sea level per ANSI
Z223.1. The exception is for units in Canada, CSA requires that
ratings be reduced 10% for elevations between 2,001 and 4500
feet. The following instructions are for units that will be installed
over 2,000 feet elevation. If this does not apply, you may skip
ahead to the Electrical Connections section on page 11.
Equation 10.1 - Manifold Pressure for Gas Heating
Values Different Than Shown in Table 10.1
Where:
MPELEV = Manifold Pressure (" W.C.) at installed
elevation
Manifold Pressure Adjustment
BTUTBL = BTU/ft³ content of gas from Table 10.1
The unit manifold pressure is factory set for operation at
elevations up to 2000 feet as follows:
BTUACT = BTU/ft³ content of gas obtained from the
utility company
• For Natural Gas units, 3.5" W.C. based on a gas heating value
of 1,050 BTU/ft³.
MPSL
• For Propane Gas units, 10.0" W.C. based on a gas heating
value of 2,500 BTU/ft³.
For higher elevations, some utility companies may derate the
BTU content (heating value) of the gas provided at altitude to a
lower value to allow certain heating appliances to be used with
no manifold pressure adjustments. For this reason it is necessary
that the supplying utility be contacted for detailed information
about the gas type and BTU content (heating value) before
operating any heater. Table 10.1 shows the standard derated
heating values of natural and propane gases at various
elevations.
Table 10.1
Gas Heating Values at Altitude (Btu/ft³) jkln
Altitude (ft)
Natural Gas
0-2,000
2,001-3,000
3,001-4,000
4,001-4,500
4,501-5,000
5,001-6,000
6,001-7,000
7,001-8,000
8,001-9,000
9,001-10,000
1,050
2,500
929 l
892 l
874 l
856
822
789
757
727
698
2,212 m
2,123 m
2,080 m
2,038
1,957
1,879
1,803
1,731
1,662
NOTE: For units equipped with two-stage or modulating gas
controls, only the high fire manifold pressure needs to be
adjusted. No adjustments to the low fire manifold pressure are
necessary on these units.
Selection of the Proper High Altitude Kit
All units installed at elevations greater than 2000 feet above sea
level require a kit, in addition to potential manifold pressure
adjustment outlined in the previous step. To determine the proper
kit to use, refer to Table 10.2.
Table 10.3 shows the contents of the kit. For more information,
refer to the latest revision of Modine Bulletin 75-530.
Propane
Table 10.2 - High Altitude Kit Selection Table jkl
Model
Model
Size
All
All
Elevation Above Sea Level (ft)
2,001-5,500 5,501-6,500 6,501-7,500
Item Code
67248
67248
67248
j Applies to both installations in the U.S. and Canada.
k Applies to both natural and propane gas.
lSizes 75-400 require a kit qty. of 1, sizes 500-800 require a kit qty of 2,
sizes 840-960 require a kit qty of 3.
j V
alues shown are for 3.5" W.C. manifold pressure for Natural Gas and 10.0"
W.C. for Propane Gas. If the local utility supplies gas with a different Btu/ft³
value, use Equation 10.1 to calculate the required manifold pressure.
k G
as heating values shown are derated 4% per 1,000' of elevation (10%
between 2,000' and 4,500' elevation in Canada) in accordance with ANSI
Z223.1 and CSA-B149, respectively.
l 945 Btu/ft³ for Canada
m 2,250 Btu/ft³ for Canada
n W
hen installed at altitudes above 2,000', a pressure switch may need to be
changed. Refer to Tables 10.2 and 10.3 to determine if a switch change is
required.
If the utility is supplying gas with heating values SAME as shown
in Table 10.1, the manifold pressure should remain set to 3.5"
W.C. for natural gas and 10.0" W.C. for propane gas and you
may proceed to the section on this page titled “Selection of the
Proper High Altitude Kit”.
Table 10.3 - High Altitude Kit Contents
Item
Code
67248
Kit Contents
High Altitude
Conversion Label
Pressure
Switch
Installation
Instructions
Yes
No
Yes
If a unit is to be installed at higher elevations AND converted from
natural gas to propane gas operation, a propane conversion kit
must be used in conjunction with the manifold pressure
adjustment and high altitude kit listed above. For the Selection
and Installation Instructions for propane conversion kits, please
see the latest revision of Modine Bulletin 75-511.
If the utility is supplying gas with heating values DIFFERENT
than shown in Table 10.1, use Equation 10.1 to determine the
appropriate manifold pressure for the elevation and gas heating
value being supplied. Note what that value is, as it will be
needed later for Start-Up. Proceed to the section on this page
titled “Selection of the Proper High Altitude Kit”.
10
= Manifold Pressure (" W.C.), at Sea Level
(use 3.5" W.C. for natural gas and
10.0" W.C. for propane)
5-572.10
UNIT INSTALLATION
Electrical Connections
7.
WARNING
1.
Disconnect power supply before making wiring connections
or working on this equipment. Follow all applicable safety
procedures to prevent accidental power up. Failure to do so
can result in injury or death from electrical shock or moving
parts and may cause equipment damage.
All appliances must be wired strictly in accordance with
wiring diagram furnished with the appliance. Any wiring
different from the wiring diagram could result in a hazard to
persons and property.
Any original factory wiring that requires replacement must
be replaced with wiring material having a temperature rating
of at least 105°C.
Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% greater than rated voltage.
2.
3.
4.
Table 11.1 - 24V and Digital Control Wire Lengths
8.
CAUTION
1.
1.
2.
3.
Installation of wiring must conform with local building
codes, or in the absence of local codes, with the National
Electric Code ANSI/NFPA 70 - Latest Edition. Unit must
be electrically grounded in conformance to this code. In
Canada, wiring must comply with CSA C22.1, Part 1,
Electrical Code.
Two copies of the job specific wiring diagram are provided
with each unit, one located in the duct furnace electrical
junction box and one in the electrical section of the unit
located in the blower compartment. Refer to this diagram
for all wiring connections.
24V Control Wiring
Digital Control Wiring
22
20
18
16
14
n/a
n/a
75
125
175
120
200
300
500
n/a
FOR UNITS WITH MODEL DIGIT 12=9 (MODINE
CONTROL SYSTEM OPTION): For field wiring to the
factory terminal strip, the terminal strip connections are
designed to clamp down on the wires. To properly connect
the wires to the terminal strip:
• Remove approximately 3/8” of insulation from the end of
the wire and push the stripped wire into the oval hole in
the terminal.
• Remove the screwdriver. Pull on the wire to make sure
that it is securely clamped in the terminal.
• Make sure that the terminal clamp is in contact with bare
wire (insulation removed).
Figure 11.1 - Terminal Strip Wiring (Model Digit 12=9)
Oval Holes
for Wiring
(two rows each)
Square Holes
for Wire Release
(two rows each)
External electrical connections to be installed include:
•
Supply power (120, 208, 240, 480, or 600 volts).
•
Thermostats, remote monitoring panels, building
pressure sensors, time clocks, or any other accessory
control devices that may be supplied (24 volts).
4.
All supply power electrical connections are made in the
electrical section of the unit. The low voltage (thermostat
and accessory control devices) may be wired to either the
electrical section or the duct furnace electrical junction
box. Refer to the wiring diagram for the terminal location
of all low voltage wiring.
5.
Refer
to the unit dimensional drawings in this document
for the location of the drill locator dimples in the side and
bottom of the unit for field drilling the hole for the electrical
conduit entry.
6.
Maximum Distance (feet) from
Control Device to Unit
Minimum
Recommended
Wire Gauge
• Push a small flat-head screwdriver into the square hole on
the terminal. Press firmly until the screwdriver hits the
back stop and opens the terminal (see Figure 11.1).
Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% less than the rated voltage.
Do not reuse any mechanical or electrical component
which has been wet. Such components must be
replaced.
2.
The wire gauge must be sized according to the National
Electric Code or CSA code based on amp draw and length
of run. Refer to Table 11.1 for maximum wire lengths that
can be wired between components and the terminal block
on the unit based on the wire gauge being used.
Terminal
Numbers
Test Probe
Points
(continued next page)
Control wiring consists of both 24V analog control wiring
and for models with Model Digit 12=9, low current digital
control signal wiring. To avoid signal interference, the two
types should be run in conduit separate from power wiring.
The analog control wiring should be shielded at one end
of the wiring run. Wiring should be stranded, twisted, and
shielded communication wire.
5-572.10
11
ELECTRICAL CONNECTIONS
9.
Depending on the configuration of the unit controls,
there may be sensors that are field installed. Review the
unit ordered to verify that the sensors supplied match
the configuration of the unit. The following are sensors
that may be included for field installation (for installation
instructions, refer to the instructions included with the
individual sensors):
• Supply Air Temperature Sensor
This sensor is required on all units and is mounted in the
supply air ductwork downstream of the unit discharge.
• Outdoor Air Sensor
This sensor is required on all units except 100% return air
units. Depending on the unit configuration, the sensor
may be duct mounted or remote mounted.
• Return Air Sensor
This sensor is required on all units that have a mixture of
outside and return air. The sensor is mounted in the
return air ductwork.
• Space Temperature/Humidity Sensor
This sensor is required on all units that have space
temperature/humidity reset control.
• Building Pressure Sensor
This sensor is required on all units that have space
pressure control, either through modulating dampers or
variable frequency drive control on the supply air blower.
Figure 12.1 - Recommended Accessory Field
Installed Disconnect Switch Mounting Locations
• D
uct Pressure Sensor
This sensor is required on all units that have duct
pressure control through variable frequency drive control
on the supply air blower.
• Space CO2 Sensor
This sensor is required on all units that have demand
based ventilation control based on space CO2
concentration.
• Duct Mounted Smoke Detector
This sensor is mounted in the supply air or return air
ductwork.
Figure 12.2 - Evaporative Cooler (Model Digit 22=D)
Evaporative Cooler Installation
For units equipped with an evaporative cooler (Model Digit
22=D), refer to Installation and Service Manual - Evaporative
Coolers (Literature 5-588).
For further instructions on the above sensor(s), refer to
the installation instructions that shipped with the
sensor(s).
10. Make sure all multi-voltage components (motors,
transformers, etc.) are wired in accordance with the power
supply voltage.
11. The power supply to the unit must be protected with a
fused or circuit breaker disconnect switch. Refer to the
Factory Mounted Option Locations (Figure 22.1) for the
factory mounted disconnect switch location and then
review the unit to determine if a factory installed dead
front disconnect switch was provided. Accessory field
installed disconnect switches should be mounted where
required by the National Electric Code as shown in Figure
12.1. For fusible disconnect switches, refer to the Model
Identification plate for the fuse size and type.
12. The power supply must be within 5% percent of the voltage
rating and each phase must be balanced within 2 percent
of each other. If not, advise the utility company.
13. A
ll outdoor electrical connections must be weatherized to
prevent moisture from entering the electrical compartment.
12
5-572.10
UNIT INSTALLATION
THIS PAGE INTENTIONALLY LEFT BLANK
5-572.10
13
UNIT INSTALLATION
Cooling Coil Units
Direct Expansion (DX) Piping
Units with a cooling section (Model Digit 2=C or P) can be
provided with a factory installed direct expansion (DX) coil, a
chilled water (water or water/glycol mixtures) coil, or the coil
can be field supplied and installed by others. For units equipped
with a factory installed cooling coil (Model Digit 23=1), refer to
the packing slip to determine the coil type provided.
The section includes a full coverage, 3-way sloping stainless
steel drain pan to remove condensate from coil headers and
piping components. Insulation is standard on outdoor units
and optional on indoor units. The cabinet includes two doors,
a removable upper door for service access to the coil once the
plumbing has been installed and a lower door which includes
a 1" drain connection to the exterior of the cabinet. Field
connections for coil inlet and outlet piping can be made through
the cabinet corner post or back of the unit. The cooling section
duct transition includes 1-1/2" flanges for fastening the sides
of the coil. The bottom duct transition is angled to remove any
condensation that may be entrained in the supply air stream.
For field supplied coils, do not exceed the maximum coil
dimensions listed in Literature 82-135. If the coil supplied is
smaller than the listed dimensions, field supplied blank off
plates are required to prevent air bypass around the coil. The
coil is supported by two 14 gauge support rails which contain
mounting provisions for fastening 4", 5", 6", 7.5", 8.5", and 10"
deep coils.
The refrigerant lines should be insulated to prevent warming
or cooling of the refrigerant. If the suction line is allowed to
be cooled, liquid will condense in the line and can severely
damage the compressor. If the liquid line is warmed, the
refrigerant can "flash" into a gas. This will cause erratic
operation of the expansion device and impair the heat transfer
ability of the cooling coil. Long runs of piping need to be
periodically supported to prevent excess vibration that can
damage the piping and joints. It is recommended to provide
dampening supports at intervals of length equivalent to 15 tube
diameters.
Figure 14.2 - General DX Piping
SUCTION HEADER
DISTRIBUTOR
EQUALIZER LINE
LIQUID LINE
SUCTION LINE
REMOTE
SENSING BULB
DX single circuit (shown) and
dual circuit coils available
1.
2.
Optional Factory
Installed
DX or Chilled
Water coil.
3.
Fin spacings
of 6,8,10,12
or 14 fins per inch
Adjustable
mounting bracket
for 2,3,4 and 6 row
coils
4.
5.
6.
7.
Full coverage
3-way sloping
409 stainless
steel drain pan
Right or left hand coil
header access to match
gas controls
Condensate Drain Pan Trap
1” stubbed drain
connection
8.
The condensate drain line needs to include a P-trap
immediately downstream of the connection to the unit. This
trap should extend at least two inches below the connection
to prevent air pressure from forcing air into the unit. The
trap should be primed with a water/glycol solution to prevent
freezing.
14
NOZZLE
EXPANSION
VALVE
(BY OTHERS)
Figure 14.1 - Cooling Section (DX Coil Shown)
Optional double
wall construction
COIL
5-572.10
STRAPS
SUCTION CONNECTION
Inspect the refrigerant distributor and verify that the nozzle
is in place.
All field brazing welding should be performed using high
quality materials and an inert gas purge (such as nitrogen)
to reduce oxidation of the internal surface of the coil.
The use of filter-dryers in the system piping is
recommended along with a sight glass that has a moisture
indicator.
Connect the suction line and suction connection.
Install the expansion valve (by others). Follow the
expansion valve manufacturer's recommendations for
installation to avoid damaging the valve.
Connect the liquid line to the expansion valve. Pressurize
the coil, expansion valve assembly and suction connection
to 100 psig with dry nitrogen or other suitable gas. The coil
should be left pressurized for a minimum of 10 minutes.
If the coil holds pressure, the installation can be considered
leak free. If the pressure drops by 5 psi or less,
repressurize the coil and wait another 10 minutes. If the
pressure drops again, there are more than likely one or
more small leaks, which should be located and repaired.
Pressure losses greater than 5 psi would indicate a larger
leak, which should be isolated and repaired. Be sure to
check valves and fittings as potential sites for leakage or
bleed.
Use a vacuum pump to evacuate the coil and any
interconnecting piping that has been open to atmosphere.
Measure the vacuum in the piping using a micron gauge
located as far from the pump as possible (the vacuum
at the pump will be greater than the rest of the system).
Evacuate the coil to 500 microns or less then close the
valve between the pump and the system. If the vacuum
holds to 500 microns or less for one minute, the system
UNIT INSTALLATION
is ready to be charged or refrigerant pumped down in
another portion of the system can be opened to the coil. A
steady rise in microns would indicate that moisture is still
present and that the coil should be further vacuumed until
the moisture has been removed.
9. Failure to obtain a high vacuum is indicative of a great
deal of moisture or a small leak. Break the vacuum with a
charge of dry nitrogen or other suitable gas and recheck
for leaks (soapy water works well). If no leaks are found,
continue vacuuming the coil until the desired vacuum is
reached.
10. All field piping must be self-supporting.
Figure 15.1 - General Chilled Fluid Piping
Air
w
n
tur
Air Vent
Re
Vent Plug
Gate Valve
Tee
Supply
Chilled Fluid Piping
To prevent noise and coil damage from water hammer, an
air vent is necessary to bleed off the accumulated air in the
system. The vent should be located on the top of the inlet
manifold where the air collects. This vent should be opened
twice a year.
The outlet manifold should have a drain installed on the
bottom to allow for periodic flushing of the system to remove
sediments and corrosion products from the cooling coil. This
drain should be opened to allow some fluid to drain twice
a year. Check coloration and viscosity of the effluent for
indications of corrosion in the system. The lines between the
unit and the structure should be insulated to prevent freezing of
the water.
1. Once installed, the coil should be pressurized to 100 psig
with dry nitrogen or other suitable gas. The coil should be
left pressurized for a minimum of 10 minutes. If the coil
holds the pressure, the hook-up can be considered leak
free. If the pressure drops by 5 psig or less re-pressurize
the coil and wait another 10 minutes. If the pressure drops
again, there is more than likely one or more small leaks
which should be located and repaired. Pressure losses
greater than 5 psig would indicate a larger leak that should
be isolated and repaired.
2. All field brazing and welding should be performed using
high quality materials and an inert gas purge (such as
nitrogen) to reduce oxidation of the internal surface of the
coil.
3. All field piping must be self supporting. System piping
should be flexible enough to allow for thermal expansion
and contraction of the coil.
4. Fill the coil with water with all air vents open so that air
is eliminated from within the coil circuitry and headers.
Verify that all vents and drains are not obstructed and do
discharge a stream of water.
5. Close all vents and perform a hydrostatic leak test
of all brazed , threaded or flanged joints, valves and
interconnecting piping. Recheck the coil level and correct
if necessary. When the setup is found to be leak free,
discharge and discard initial water charge. It is important
that all grease, oil, flux and sealing compounds present
from the installation be removed.
Flo
Drain Plug
Dirt Leg
Union
Cap
Table 15.1 - Cooling Coil Performance Limits
Cooling Model
Type
Size
DX
Chilled
Water
j
k
l
m
5-572.10
Min
CFM
75
688 l
100
802 m
125
926
150
1,111
175
1,296
200
1,481
225
1,667
250
1,852
300
2,222
350
2,593
400
2,963
75
609
100
741
125
926
150
1,111
175
1,296
200
1,481
225
1,667
250
1,852
300
2,222
350
2,593
400
2,963
Single Circuit
Dual Circuit
Max
CFM j
Area
(ft²)
Max
CFM j
Area
(ft²)
Max
Cooling
(Tons) k
1,891
3.44
1,707
3.10
9.4
2,206
4.01
2,048
3.72
11.4
2,521
4.58
2,416
4.39
13.4
3,352
6.09
3,165
5.76
18.1
3,724
6.77
3,538
6.43
20.2
5,214
9.48
4,996
9.08
27.3
1,676
3.05
n/a
n/a
10.6
2,011
3.66
n/a
n/a
12.6
2,372
4.31
n/a
n/a
14.8
3,214
5.84
n/a
n/a
19.3
3,592
6.53
n/a
n/a
21.3
5,073
9.22
n/a
n/a
29.3
Based on 550 feet per minute (FPM) coil face velocity.
Based on 95°F/75°F Entering Dry Bulb/Wet Bulb.
Model Size 75 minimum CFM for DX Dual Circuit is 621.
Model Size 100 minimum CFM for DX Dual Circuit is 745.
15
START-UP PROCEDURE
Start-Up Procedure
exceed the motor nameplate rating. On three phase
systems, check all legs to insure system is balanced.
IMPORTANT
1. T
o prevent premature heat exchanger failure, observe
heat exchanger tubes by looking at the heat exchanger
through the field installed access openings in connecting
ductwork or the unit access doors where viewing the heat
exchanger is possible. If the bottom of the tubes become
red while blower and duct furnace are in operation, check
to be sure the blower has been set to the proper rpm for
the application. Refer to page 16 for Blower Adjustments.
2. Start-up and adjustment procedures should be performed
by a qualified service agency.
Refer to page 58 for the Start-up Checklist.
1.
Turn off power to the unit at the disconnect switch. Check
that fuses or circuit breakers are in place and sized
correctly. Turn all hand gas valves to the “OFF” position.
2.
emove the blower exterior panels and open the electrical
R
compartment door.
3.
Check that the supply voltage matches the unit supply voltage listed on the Model Identification plate. Verify that
all wiring is secure and properly protected. Trace circuits to
insure that the unit has been wired according to the wiring
diagram.
4.
Check to insure that the venting system is installed and
free from obstructions.
5.
Check to see that there are no obstructions to the intake
and discharge of the unit.
6.
Check the belt tension and sheave alignment. Refer to
Blower Adjustments for proper belt tension.
7.
heck bearings for proper lubrication. For units provided
C
with pillow block bearings (See Model Nomenclature),
refer to Lubrication Recommendations for requirements.
8.
Check to make sure that all filters are in place and that
they are installed properly according to direction of air flow.
9.
Perform a visual inspection of the unit to make sure no
damage has occurred during installation.
19. Recheck the gas supply pressure at the field installed
manual shut-off valve. The minimum inlet pressure should
be 6" W.C. on natural gas and 11" W.C. on propane gas.
The maximum inlet pressure for either gas is 14" W.C. If inlet pressure exceeds 14" W.C., a gas pressure regulator
must be added upstream of the combination gas valve.
20. Open the field installed manual gas shut-off valve.
21. Open the manual main gas valve on the combination
gas valve. Call for heat with the thermostat and allow the
pilot to light for intermittent pilot ignition. If the pilot does
not light, purge the pilot line. If air purging is required,
disconnect the pilot line at outlet of pilot valve. In no case
should the line be purged into heat exchanger. Check the
pilot flame length (See Pilot Flame Adjustment).
22. Once the pilot has been established, check to make sure
that the main gas valve opens. Check the manifold gas
pressure (See Main Gas Adjustment) and flame length
(See Air Shutter Adjustment) while the supply fan blower is
operating.
23. Check to insure that gas controls sequence properly (See
Control Operating Sequence). Verify if the unit has any
additional control devices and set according to the instructions in the Control Options.
24. Once proper operation of the unit has been verified,
remove any jumper wires that were required for testing.
25. Close the electrical compartment door.
26. Replace all exterior panels.
Pilot Burner Adjustment
10. T
urn on power to the unit at the disconnect switch. Check
to insure that the voltage between duct furnace electrical
box terminals 1 and 2 is 24V.
11. Check the thermostat, ignition control, gas valve, and
supply fan blower motor for electrical operation. If these do
not function, recheck the wiring diagram. Check to insure
that none of the Control Options have tripped.
12. For units with a return air damper, the return air damper
linkage needs to be adjusted. Refer to Damper Linkage
Adjustment.
13. Check to make sure that the damper opens properly
without binding.
14. Check the blower wheel for proper direction of rotation
when compared to the air flow direction arrow on the
blower housing. Blower wheel rotation, not air movement,
must be checked as some air will be delivered through the
duct furnace with the blower wheel running backwards.
The pilot burner is orificed to burn properly with an inlet
pressure of 6-7" W.C. on natural gas and 11-14" W.C. on
propane gas. Final adjustment must be made after installation.
If the pilot flame is too long or large, it may cause soot and/
or impinge on the heat exchanger causing failure. If the pilot
flame is too short, it may cause poor ignition or result in the
controls not opening the combination gas control. A short flame
can be caused by a dirty pilot orifice. The pilot flame should be
observed periodically to assure trouble-free operation.
To Adjust the Pilot Flame
1.
Create a call for heat from the thermostat.
2.
Remove the cap from the pilot adjustment screw. For
location, see the combination gas control literature supplied
with unit.
3.
Adjust the pilot length by turning the screw in or out
to achieve a soft steady flame 3/4" to 1" long and
encompassing 3/8"-1/2" of the tip of the flame sensing rod
(See Figure 16.1).
4.
Replace the cap from the pilot adjustment screw.
Figure 16.1 - Correct Pilot Flame
15. Check the blower speed (rpm). Refer to Blower
Adjustments for modification.
16. Check the motor speed (rpm).
17. Check the motor voltage. On three phase systems, check
to make sure all legs are in balance.
18. Check the motor amp draw to make sure it does not
16
5-572.10
Flame Sensing Rod
3/4" to 1"
START-UP PROCEDURE
Main Burner Adjustment
7.
The gas pressure regulator (integral to the combination gas
control) is adjusted at the factory for average gas conditions.
It is important that gas be supplied to the duct furnace in
accordance with the input rating on the serial plate. Actual
input should be checked and necessary adjustments made
after the duct furnace is installed. Over-firing, a result of too
high an input, reduces the life of the appliance and increases
maintenance. Under no circumstances should the input exceed
that shown on the serial plate.
Check/Adjust Pressure at the Combination Gas Valve
This section applies to all units, regardless of gas control type.
1. Turn the field installed manual shut-off valve to “OFF”.
2. Remove the 1/8" pipe plug in the pipe tee or gas valve and
attach a U-tube type water manometer which is at least 12"
high and capable of reading to 0.1" W.C. See Figure 17.1.
3. Turn the field installed manual gas shut-off valve to “ON”.
Figure 17.1 - Checking Gas Pressure with Manometer
U-TUBE
MANOMETER
MANIFOLD
TEE
4.
5.
Create a high fire call for heat from the thermostat.
Determine the correct high fire manifold pressure, which
depends on gas type and gas control type. Review the
furnace Model Digit 11 and 12 (not the system model
number) and adjust the main gas pressure regulator spring
to achieve the proper manifold pressure as shown in Table
17.1. For location of regulator adjustment, refer to the
combination gas control literature supplied with the unit.
8.
9.
Check/Adjust Pressure for the Modulating Valve
This section only applies to units with Electronic Modulation gas
controls (Model Identification Digit 12=4, 7, 8, or 9). Refer to
the appropriate instructions for the valve type on the unit.
For Units with Model Digit 12=4, 7, or 8:
The low fire gas pressure needs to be adjusted. This needs to
be repeated on each furnace in multiple furnace units. Using
Figure 17.2 for item locations, this is accomplished as follows:
1. Disconnect power.
2. Remove all wires from Maxitrol Amplifier terminal “3” or
duct furnace terminal “43” (if available).
3. Turn on power at the disconnect switch.
4. Remove the cover plate (2), maximum adjustment screw
(4), spring (5), and plunger (8). A small magnet is useful for
this purpose. CAUTION - The plunger is a precision part.
Handle carefully to avoid marring or picking up grease and
dirt. Do not lubricate.
5. Using minimum adjusting screw (9), adjust low fire manifold
pressure to 0.56" W.C. for natural gas and 1.6" W.C. for
propane gas.
6. Replace plunger and spring retainer, spring, and maximum
adjusting screw in proper order.
7. Using maximum adjustment screw (4), adjust high fire
manifold pressure to 3.5" W.C. for natural gas and 10"
W.C. for propane gas.
8. Disconnect power.
9. Replace cover plate (2) and re-install all wires from Maxitrol
amplifier terminal “3” or duct furnace terminal “43”.
10. After adjustment, move the field installed manual shut-off
valve to the “OFF” position, remove the manometer, and
replace the 1/8" pipe plug.
(continued next page)
Figure 17.2 - Maxitrol Modulating Valve Adjustments
Table 17.1 - Manifold Gas Pressure - Main Valve
Furnace
Model Digit 11
N
(Natural)
P
(Propane)
Furnace
Model Digit 12
1, 2, 4, 7, 8
9
1, 2, 4, 7, 8
9
1
10
Manifold Pressure
3.5”
4.0”
10.0”
10.5”
j For units with Model Digit 12=9 and multiple furnaces, only one furnace
will be Model Digit 12=9, the additional furnaces will be Model Digit 12=2,
therefore pressures will be different for those furnaces.
6.
After adjustment, move the field installed manual shut-off
valve to the “OFF” position, remove the manometer, and
replace the 1/8" pipe plug.
After the plug is in place, move the field installed manual
shut-off valve to the “ON” position and recheck pipe plugs
for gas leaks with soap solution.
Proceed to the section "Air Shutter Adjustment".
If the unit has Electronic Modulation gas controls (Model
Identification Digit 12=4, 7, 8, or 9), skip steps 7 through
9 in this section and proceed to the next section "Check/
Adjust Pressure for the Modulating Valve", otherwise
continue to the next step.
5-572.10
2
3
4
5
9
8
7
6
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
TOP HOUSING
COVER PLATE
SEAL GASKET
MAX ADJUSTMENT SCREW
MAX ADJUSTMENT SPRING
SOLENOID
MIN ADJUSTMENT SPRING
PLUNGER
MIN ADJUSTMENT SCREW
MIN ADJUSTMENT SCREW STOP
17
START-UP PROCEDURE
Check/Adjust Pressure for the Modulating Valve
(continued)
11. After the plug is in place, move the field installed manual
shut-off valve to the “ON” position and recheck p ipe plugs
for gas leaks with soap solution.
12. Proceed to the section "Air Shutter Adjustment".
5.
6.
7.
8.
Figure 18.1 - Maxitrol EXA Modulating Valve
BUTTON #2
SUPPLY POWER TERMINALS
CONTROL SIGNAL TERMINALS
BUTTON #1
1
2
3
4
POSITION FEEDBACK
WIRING TERMINALS
ON
DIP SWITCHES
(1=“OFF”, 2=“ON”, 3=“OFF”)
1 2 3
For Units with Model Digit 12=9:
The high fire gas pressure needs to be adjusted first, followed
by the low gas pressure. For multiple furnace units, this is only
required on the duct furnace that has the modulating valve
(Model Digit 12=9). This is accomplished as follows:
1. Verify the main valve (valve before the modulating valve)
outlet pressure has been set to 4.0” W.C. for natural gas
or 10.5" W.C. for propane gas per instructions and table
17.1 on the previous page. For multiple furnace units,
the furnaces without the modulating valves are to remain
at 3.5" W.C. for natural gas or 10.0" W.C. for propane
gas. For location of regulator adjustment, refer to the
combination gas control literature supplied with the unit.
2. The Maxitrol EXA modulating valve series has a cover
secured with two screws that must be removed. Once
removed, there are a bank of (3) DIP switches and two
buttons and a communication LED for the user interface as
shown in Figure 18.1.
3. Verify that the DIP switches are properly set to the "OFF"
position for switches 1 and 3 and "ON" for switch 2.
4. Adjust the High Fire Setting as follows:
a. Enable the unit controls and create a call for heat.
b. Press and hold Button #1 on the modulating valve until
the LED lights solid red, then release.
c. With the valve now in the high fire setting mode,
confirm or adjust the high fire manifold pressure to be
3.5" W.C. If the pressure needs to be adjusted, press
or hold Button #1 to increase gas flow and press or
hold Button #2 to decrease gas flow.
d. If 3.5" W.C. cannot be attained, recheck the inlet gas
pressure as described previously. After addressing
any issues, if 3.5" W.C. still cannot be attained, step
the valve closed using button #2 to the point where
manifold pressure begins to be impacted. If the
pressure at that point is less than 3.3" W.C., recheck
your inlet pressure with the unit operating and adjust
as required.
e. Save the setting by simultaneously holding Buttons
#1 and #2 until the LED turns OFF. If this is not
performed within 5 minutes, the control will default
to the previously saved settings and return to normal
operating mode.
4. Adjust the Low Fire Setting as follows:
a. Press and hold Button #2 on the modulating valve until
the LED light blinks red, then release.
b. With the valve now in the low fire setting mode,
confirm or adjust the low fire manifold pressure to be
no less than the minimum shown on the furnace serial
plate in the box called “Min. Manifold Pressure”. If the
pressure needs to be adjusted:
c. Press or hold Button #1 to increase gas flow and #2
to decrease gas flow. It is best to push and release
button #2 to single step the valve to the minimum
manifold pressure. Holding the button is likely to cause
18
the valve to close too far and lose flame.
Save the setting by simultaneously holding Buttons
#1 and #2 until the LED turns OFF. If this is not
performed within 5 minutes, the control will default
to the previously saved settings and return to normal
operating mode.
Once the setting of the modulating valve has been
completed, replace the valve cover removed earlier.
Move the field installed manual shut-off valve to the “OFF”
position, remove the manometer, and replace the 1/8" pipe
plug.
After the plug is in place, move the field installed manual
shut-off valve to the “ON” position and recheck the pipe
plug for gas leaks with soap solution.
Proceed to the section "Air Shutter Adjustment".
d.
LED INDICATOR
Air Shutter Adjustment
Proper operation provides a soft blue flame with a well-defined
inner core. A lack of primary air will reveal soft yellow-tipped
flames. Excess primary air produces short, well-defined flames
with a tendency to lift off the burner ports. For both natural
and propane gas, the air shutters can be adjusted to control
the burner flame height. The air shutters can be accessed by
reaching behind the manifold tee in Figure 17.1. The larger
models may require the removal of the manifold (see Manifold
Assembly Removal).
Adjusting the primary combustion air is achieved by resetting
the primary air shutters (See Figure 54.2). Prior to flame
adjustment, operate duct furnace for about fifteen minutes. The
main burner flame can be viewed after loosening and pushing
aside the gas designation disc on the side of the burner box.
1. T
o increase primary air, loosen the air shutter set screws and
move the air shutters closer to the manifold until the yellow
tipped flames disappear and a clean blue flame with a well
defined inner cone appears.
2. T
o decrease primary air, move the air shutters away from the
manifolds until flames no longer lift from burner ports, but
being careful not to cause yellow tipping.
3. R
e-tighten set screws after adjustment.
5-572.10
START-UP PROCEDURE
Blower Adjustments
All belt drive supply fan speed adjustments can be made with
the adjustable sheave on the blower motor as follows:
1. Refer to page 38 to determine correct blower speed
according to job requirements, then proceed to the next
step.
2. Turn off power to the unit at the disconnect switch. If
equipped with gas heat option, turn all hand gas valves to
the “OFF” position.
3. Loosen the belt tension and remove the belt.
4. On the motor sheave, loosen the set screw on the side
away from the motor (see Figure 19.1).
Figure 19.1 - Motor Sheave Adjustment
11. Check the motor amps to ensure the maximum motor amp
rating is not exceeded. Verify airflow volume and repeat
steps above for further adjustment.
12. If equipped with gas heat, turn on the gas and initiate
burner operation.
13. Verify the temperature rise and supply air temperature of
the heating section do not fall outside the range or exceed
the maximums shown in Table 32.1.
14. After 24 hours of operation, retighten the setscrews to the
torque listed in the owners manual on the bearing, sheave,
and blower wheel to avoid damage to the unit.
Lubrication Recommendations
The blower can be provided with either spider or pillow block
bearings. Spider bearings are permanently lubricated and
do not require lubrication. Pillow block bearings are shipped
greased from the factory but will require lubrication. The
bearings should be checked and lubricated before each heating
season but a more frequent lubrication schedule may be
required based on the environment in which the unit is installed,
and the frequency of the equipment operation. Shell Alvania #2
lubricant is recommended.
SET SCREW
MOTOR
SHAFT
Damper Linkage Adjustment
ADJUSTABLE HALF
OF SHEAVE
5.
Turn outer side of motor sheave clockwise until motor
sheave is fully closed.
From fully closed position, turn outer side of motor sheave
counterclockwise until the proper number of turns open
are achieved. Turns should be done in half-turns (180°
rotations). Each half turn results in a change of blower
speed and air volume of approximately 2.5-5%. Adjusting
the half of the sheave inward increases blower speed,
adusting outward decreases blower speed.
Tighten the set screw on the flat portion of the motor shaft.
Replace the belt and verify that the belts are aligned in the
sheave grooves properly and are not angled from sheave
to sheave.
6.
7.
8.
If the unit is provided with a return air damper, to prevent
shipping damage, the return air damper linkage is disconnected
and the damper closed. Before operating the unit, the fresh and
return air dampers must be connected. This is accomplished by
the following:
1. The damper actuator should be de-energized and the fresh
air damper in a fully closed position.
2. Open the return air damper in a fully open position.
3. Slide the connecting rod into the ball joint on the blade arm
with the return air damper fully open. See Figure 19.3.
4. Tighten the 5/16" hex head screw on the ball joint.
Figure 19.3 - Damper Linkage Adjustment
Figure 19.2 - Belt Tension Adjustment
BALL JOINT
CONNECTING ROD
BLADE ARM
DAMPER
BLADE
3/4" DEFLECTION
WITH 5 LBS. OF FORCE
9.
Retighten motor base. Motor base should be shifted for
proper belt tension which is 3/4" deflection with about 5 lbs.
of force. Refer to Figure 19.2.
10. Turn on power to the unit and initiate blower motor
operation. Do not fire gas controls until blower adjustment
has been made or unit may cycle on high limit control.
5-572.10
19
START-UP PROCEDURE
Furnace Control Operating Sequence
IMPORTANT
4.
nce the pilot is lit, the flame sensor proves the pilot and
O
stops the spark igniter from sparking.
5.
he main gas valve is opened and the main burner is
T
controlled as follows:
To prevent premature heat exchanger failure, with all control
systems, a blower starting mechanism must be provided so
that the blower is running or energized within 45 seconds of
the gas control operation.
a.
Single-Stage Furnaces (Model Digit 12=1): The main
burner is lit to 100% full fire.
b.
wo-Stage Furnaces (Model Digit 12=2): The main
T
burner is lit to 50% fire. If the temperature at the
thermostat continues to fall, the thermostat will call for
high stage heat and the main burner is lit to 100% full
fire.
c.
odulating Room or Duct Thermostat (Model
M
Digit 12=4): The main gas valve is opened 100%
and the burner firing rate is modulated between 40%
and 100% full fire. A resistance signal (8000 to 12000
ohms) in the thermostat is converted by the modulating
amplifier to an inverted DC voltage (between 0VDC
for high fire to 12 VDC for low fire) and applied to the
modulating gas valve to control the gas flow to the
main burner.
Furnaces are supplied with intermittent pilot systems with
continuous retry, which both the main burner and pilot burner
are turned off 100% when the thermostat is satisfied.
Control Options (see page 23) could change the listed
sequence of operation for the unit based on their function. The
descriptions given below are for the basic duct furnace.
Single Furnace Controls
Single furnace units (Model Digits 4-6=75 through 400) are
offered with different types of gas control:
•
Staged Control (Model Digit 12=1 or 2): These furnaces
utilize a single- or two-stage combination gas valve, an
ignition control, and a low voltage thermostat.
•
Electronic Modulating Control (Model Digit 12=4, 7, or
8): These furnaces utilize a single-stage combination gas
valve, an electronic modulating gas valve, a modulating
amplifier, an ignition control, and one of the following:
•
»»
Modulating room thermostat
»»
Modulating duct thermostat with remote temperature
set point adjuster
»»
uilding Management System (BMS) signal by others
B
(an inverted signal where 0VDC or 4mA is high fire
and 10VDC or 20mA is low fire).
Note: When modulating duct sensing is utilized, a
room override thermostat can be added. When the
room override calls for heat, the burner modulates to
full fire operation until the room override is satisfied.
The unit then reverts back to duct sensing control.
When equipped with both, either the duct sensor or
the room override thermostat can call for heat.
d.
Electronic Modulating Control with Modine Control
System (Model Digit 12=9): These furnaces utilize
a single-stage combination gas valve, an electronic
modulating gas valve, a programmable microprocessor
based controller, an ignition control, and different sensors
depending on the application, but most commonly include:
»»
A duct temperature sensor
»»
A space temperature sensor
»»
There is also BMS integration capability for BACnet or
LonWorks protocol systems.
Note: For further information regarding the operation
of any of the electronic modulating system options
above, consult the literature provided with the unit.
e.
The control operating sequence for all furnaces is as follows:
1.
The thermostat calls for heat or is enabled by the BMS.
2.
he power exhauster relay is energized starting the
T
power exhauster motor. Once the motor has reached full
speed, the differential pressure switch closes. The power
exhauster pre-purge time delay relay then closes after 20
to 40 seconds and energizes the gas control circuit.
3.
he pilot valve opens and the spark igniter sparks in an
T
attempt to light the pilot. The system will attempt to light
the pilot for 70 seconds. If the pilot is not sensed for any
reason, the ignition control will wait for approximately
six minutes with the combination gas control closed and
no spark. After six minutes, the cycle will begin again.
After three cycles, some ignition controllers lockout for
approximately one hour before the cycle begins again. This
will continue indefinitely until the pilot flame is sensed or
power is interrupted to the system.
20
MS Signal (Model Digit 12=7 or 8): The main gas
B
valve is opened 100% and the burner firing rate is
modulated between 40% and 100% full fire. A BMS
0-10VDC or 4-20mA signal (inverted, such that 0 VDC
or 4 mA is high fire and 10 VDC or 20 mA is low fire)
is converted by the signal conditioner/modulating
amplifier into an inverted DC voltage (between 0VDC
for high fire to 12 VDC for low fire) and applied to the
modulating gas valve to control the gas flow to the
main burner. The signal conditioner can accept a 0-10
VDC signal when all the dip switches are in the “OFF”
position and 4-20 mA signal when all the dip switches
are in the “ON” position.
odulating with Modine Control System (Model
M
Digit 12=9): The main gas valve is opened 100% and
the burner firing rate is modulated between 40% and
100% full fire. Heating demand is determined by the
Modine Control System through a comparison of the
supply air or space temperature to setpoint and a DC
voltage (between 2VDC for low fire to 10 VDC for high
fire) is applied to the modulating gas valve to control
the gas flow to the main burner.
Note: Typically the temperature control is via supply
air with the space sensor used to reset the supply air
temperature setpoint. For additional information, refer
to the Modine Control System Manual, literature #74510 that shipped with the unit.
6.
If the unit was provided with a time delay relay, the blower
starts after 30 to 45 seconds.
7.
Once the temperature is satisfied, both the main and pilot
valves close 100%. Blower operation may or may not
continue, depending on application.
5-572.10
START-UP PROCEDURE
Multiple Furnace Controls
Extended VAV Airflow Limits
Multiple furnace units are available as two furnace units (Model
Digits 4-6=500 through 800) and three furnace units (Model
Digits 4-6=840 or 960) and with different types of gas control:
•
•
Staged Control (Model Digit 12=1): For control of multiple
staged furnaces, each furnace would be individually
controlled. Refer to the section for Single Furnace
Controls, Staged Control (Model Digit 12=1).
»»
Two furnace units would be controlled as 2-stage
(50%/50%).
»»
Three furnace units can be controlled as 3-stage
(33%/33%/33%) or 2-stage (33%/67%).
Electronic Modulating Control (Model Digit 12=4): For
control of multiple electronic modulating furnaces, one
furnace is the Primary furnace featuring a modulating
amplifier capable of driving modulating gas valves on
Secondary furnaces. Because all valves are driven by one
amplifier, all valves modulate at the same rate, from 40%
to 100% full fire. Refer to the section for Single Furnace
Controls, Electronic Modulating Gas Controls (Digit 12=4).
•
Electronic Modulating Control (Model Digit 12=7 or 8):
For control of multiple electronic modulation furnaces for
BMS control (0-10VDC or 4-20mA control signal), each
furnace would be individually controlled. Refer to the
section for Single Furnace Controls, Electronic Modulation
Control (Model Digit 12=7 or 8).
•
Modulating with Modine Control System (Model Digit
12=9): For control of multiple furnaces, one furnace
features a modulating gas valve while additional furnaces
are two stage furnaces. The Modine Control system
seamlessly stages furnaces and modulates the primary
furnace based on demand.
If certain conditions are followed, the allowable minimum CFM
of the system can be extended to:
•
75% of the minimum listed CFM in Table 32.1 for high
air temperature rise units (Model Digit 10=H)
•
66% of the minimum listed CFM in Table 32.1 for low
air temperature rise units (Model Digit 10=L).
Refer to Table 21.1 for a summary of the reduced minimum
airflows, indicated in the column "Extended Range". To allow
the reduced airflows, the unit must be applied as follows:
1.
The unit has 2-stage or modulating gas controls.
2.
The unit is provided with a discharge air thermostat.
3.
The system does not include a room thermostat.
Exception: See note below for units equipped with the
Modine Control System option (Model Digit 12=9).
The discharge air thermostat will prevent the unit from firing
above the allowable 100°F rise when the unit is at or above the
minimum CFM by monitoring the discharge air and going to low
fire. A room thermostat, because it is located remote from the
unit, could cause the unit to over-fire.
Note for units equipped with the Modine Control System option
(Model Digit 12=9): A space temperature sensor (Carel pAD) is
permitted, as a call for heating from the space results in a reset
of the supply air temperature setpoint that will still maintain a
supply temperature that is at or below the maximum allowable
discharge air temperature.
Table 21.1 - Extended Range VAV Minimum Airflow
Minimum Airflow (CFM)
Input Rating
(Digit 4-6)
75
100
125
150
175
200
225
250
300
Variable Air Volume Applications
Units may be supplied with variable frequency drives for
applications where variable air volume is required. The
minimum air flow may be reduced to as low as 30% of the full
speed air flow, but not lower than the minimum airflow listed
in Table 21.1 and 32.1, unless certain conditions are followed.
Refer to the following section titled "Extended VAV Airflow
Limits" for additional information.
350
400
500
600
700
800
840
960
To determine the actual minimum allowable airflow, all unit
selections must be performed with the AccuSpec configuration
software. Within AccuSpec, multiple variable frequency drive
speed control changeover options are available, which include
these common selections:
High ATR
(Digit 10=H)
Extended
Standard
Range 
563
422
750
563
938
703
1,125
844
1,313
984
1,500
1,125
1,688
1,266
1,875
1,406
2,250
1,688
2,625
3,000
-
1,969
2,250
-
•
wo speed which may be controlled by a manual
T
high/low switch which may be factory mounted on the
control panel or shipped loose for field installation or
by exhaust fan interlocks.
•
loating building pressure sensing which utilizes a
F
Photohelic pressure controller to adjust the building
pressure by varying the amount of makeup air
supplied to the space.
Cooling Coil Operation
uilding management control which allows for an
B
external signal of 0-10VDC of 4-20mA to adjust the
unit airflow.
2.
•
4,375
5,000
3,125
3,750
4,375
5,000
6,562
7,500
2,888
3,300
2,063
2,475
2,888
3,300
4,331
4,950
j Extended range minimum can be 75% of standard minimum.
 Extended range minimum can be 66% of standard minimum.
1.
Additional options are available when the unit is configured with
the Modine Control System option (Model Digit 12=9).
Low ATR
(Digit 10=H)
Extended
Standard
Range 
938
619
1,250
825
1,563
1,031
1,875
1,238
2,188
1,444
2,500
1,650
2,813
1,856
3,125
2,063
3,750
2,475
3.
5-572.10
Airflow must be properly distributed across the coil face
and should not vary by more than 20%.
Air velocities should be maintained between 200 and 550
feet per minute. Refer to Figure 15.1.
For chilled fluid coils, fluid velocities should be maintained
within the recommended values of 1 to 8 feet per second
(fps) for Water and 1 to 6 fps for Glycol solutions.
21
COMPONENT/OPTION LOCATIONS
For location of standard and optional factory installed components, refer to Figure 22.1 and the descriptions on the following pages.
Figure 22.1 - Factory Mounted Option Locations
1. Discharge Thermostat (not shown)
2. Low Gas Pressure Switch
3. High Gas Pressure Switch
4. Power Exhauster
5. Timed Freeze Protection
6. Ignition Controller
8. Control Relay
9. Time Delay Relay
10. Furnace Low Voltage Terminal Strip
11. Power Exhauster Relay
12. Furnace Supply Power Terminal Strip
13. Control Step Down Transformer
14. Control Relay
15. Blower Low Voltage Terminal Strip
16. Dead Front Disconnect Switch
17. Step Down Transformer Fuses
18. Step Down Transformer
19. Factory Installed Minimum Positioner
20. Extended Grease Line Zerk Fittings
21. Extended Grease Lines
22. Return Air Fire Stat
23. Blower Housing
24. Pillow Block Bearings
25. Blower Motor
26. Filters
27. Fresh Air Damper
28. Enthalpy Sensor
29. Rainhood and Birdscreen
30. Direct Drive Damper Actuator
31. Enthalpy Controller
32. Damper to Damper Linkage
33. Return Air Damper
34. Proportional Temp Controller Sensor
35. Motor and Blower Vibration Isolation
36. Blower Support
37. Convenience Outlet
38. Blower Door Switch
39. Dirty Filter Switch
40. Motor Starter/VFD Control
41. Mild Temperature Thermostat
42. Proportional Temp Controller
43. Warm-Up Stat
44. Blower Supply Power Terminal Strip
45. Service Switches
46. Electronic Modulating Amplifier
47. Electronic Modulating Gas Valve
48. Air Flow Proving Switch
49. High Limit Switch
50. Supply Air Fire Stat
51. Main Gas Valve
52. Burner Box
53. Direct Drive Damper Actuator
54. Discharge Damper
22
Furnace Control Panel(s) for
Modine Control System Equipped Units (Model Digit 12=9)
57
56
13
58
12
11
12
11
59
6
6
49
10
50
50
49
48
10
60
Single Furnace Units or
Primary Furnace on Multiple Furnace Units
Secondary Furnace(s) on Multiple Furnace Units
For Modine Control System Units Only
(Model Digit 12=9):
56. Carel pCOOEM+ Microprocessor Controller
57. Carel pLDPro User Interface Panel
58. Optional Control Relays
59. Optional Unit Enable Relay
60. Wiring Channels
61. Return Air Sensor (not shown)
62. Outside Air Sensor (not shown)
63. Mixed Air Sensor (not shown)
5-572.10
COMPONENT DESCRIPTIONS
All units include the standard (STD) features. The unit
must be reviewed to determine the optional (OPT)
features that may have been supplied with the unit. Refer to
Figure 22.1 for the descriptions on the following pages.
(1) Discharge Thermostat/Sensor – (OPT)
The discharge thermostat or sensor is field installed in the
discharge (supply) air ductwork. For additional information, refer
to the thermostat vendor literature provided in the literature
packet with the unit. Model Sizes 500-960 contain multiple
furnaces so multiple thermostats/sensors may be included.
The thermostat(s) provided can be one of the following:
a. Two-Stage Capillary Thermostat (Digit 12=1 or 2)
The thermostat capillary is to be field routed/installed
in the ductwork. The thermostat body contains the
setpoint adjuster that must be field set.
SUPPLY
DUCTWORK
(BY OTHERS)
SETPOINT
ADJUSTER
RIGHT
LEFT
CAPILLARY
b.
R
B
W
R
B
W
(3) High Gas Pressure Switch – (OPT)
The switch monitors the gas pressure downstream of all the gas
controls and disables the ignition controller and combination
gas valve if high gas pressure is experienced right before the
manifold. The switch is manual reset so that if the gas pressure
is too high, a service person must check the unit to be sure the
gas controls have not been damaged, then reset the switch to
allow the unit to operate when gas pressure returns below the
maximum setpoint. The switch should be set to insure that the
maximum manifold gas pressure is not exceeded (3.5" W.C. for
natural gas, 10" W.C. for propane gas).
Low and High Gas Pressure Switches
THERMOSTAT BODY
(COVER REMOVED)
Two-Stage Electronic Thermostat (Digit 12=1 or 2)
The thermostat body is field installed remotely and
includes the discharge air set point adjuster that must
be field set. Refer to Literature 5-577 latest revision.
Note: Second stage
S350 module not shown.
c.
(2) Low Gas Pressure Switch – (OPT)
The switch monitors the gas pressure upstream of all the gas
controls and disables the ignition controller and combination
gas valve if low gas pressure is experienced. The switch is
automatic reset, allowing the unit to operate when gas pressure
returns above the minimum setpoint. The switch should be set
to insure that the minimum inlet gas pressure is available (6"
W.C. for natural gas, 11" W.C. for propane gas).
Electronic Modulating Discharge Sensor (Digit 12=4)
Includes a field installed mixing tube and discharge
air sensor field installed in duct work. The set point
adjuster is field installed remotely and must be field set.
Refer to Literature 5-578 latest revision for instructions.
(4) Duct Furnace Power Exhauster – (STD)
The power exhauster, on a call for heat, creates a combustion
draft through the duct furnace prior to the pilot being energized.
The draft is proven through the power exhauster motor
centrifugal switch that closes when the motor reaches full
speed. The unit door includes a power exhauster discharge
cover and inlet combustion louvers. For information about
venting, refer to the Installation – Venting section.
(5) Timed Freeze Protection (OPT) (All Except Digit 12=9)
The timed freeze protection system includes a sensor factory
installed in the discharge air stream. On initial start-up, the timed
delay in the system allows the unit to go through the normal
ignition sequence. The timed delay is a manual reset switch and
adjustable for 1-10 minutes. In the event that the unit fails to fire
after this period, the discharge air sensor will sense the cold air
(30°-75°F adjustable) and will shut down the unit.
For units with the Modine Control System option (Model Digit
12=9), this feature is integral to the control logic and utilizes
existing sensors included with that option. Refer to the latest
revision of the Modine Control System Manual, literature 74-510
for additional information.
Timed Freeze Protection Module
d.
Supply Air Sensor (Model Digit 12=9) (not shown)
Used on units with Modine Control System option,
the sensor includes either a fixed or adjustable length
sensor field installed in duct work. Refer to Literature
74-541 latest revision for instructions.
5-572.10
23
COMPONENT DESCRIPTIONS
(6) Ignition Controller – (STD)
The ignition controller is factory installed in the duct furnace
electrical junction box with the spark ignitor and sensor located
on the burner. For both natural and propane gas units, the
ignition controller is 100% shut-off with continuous retry. On
a call for heat, the system will attempt to light the pilot for
70 seconds. If the pilot is not sensed for any reason, the
ignition control will wait for approx­imately six minutes with the
combination gas control closed and no spark. After six minutes,
the cycle will begin again. After three cycles, some ignition
controllers lockout for approximately one hour before the cycle
begins again. This will continue indefinitely until the pilot flame
is sensed or power is interrupted to the system.
(8) Control Relay – (OPT)
The control relay(s) are factory installed in the duct furnace
electrical junction box. The relay has a 24V coil with doublepole, double throw (DPDT) contacts. Refer to the unit wiring
diagram for the switching function of the relay. The two
normally open and two normally closed contacts are rated for a
maximum of 30 amps @ 115V/1Ph.
(9) Time Delay Relay – (STD)
The time delay relay is factory installed in the duct furnace
electrical junction box. The time delay relay allows the gas controls
to operate for approximately 30 seconds before the blower starts.
This allows the heat exchanger a warm up period so that the
initial delivered air is not cold. The time delay relay also keeps
the motor running for approximately 30 seconds after the call for
heat has been satis­fied to remove the residual heat from the heat
exchanger. For single phase units below 1-1/2 Hp, the time delay
relay controls the motor directly. For single phase units 1-1/2
Hp and greater and all three phase units, the time delay relay
controls the motor starter.
(14) Control Relay – (OPT)
The control relay is factory installed in the blower electrical
section. See description of Option 8 for additional details.
(15) Blower Low Voltage Terminal Strip – (STD)
The terminal strip is labeled to match the electrical wiring
diagram provided with the unit. All field wiring connections
should be made to the right side of the terminals to prevent
miswiring by modifying the factory wiring which is made to the
left side of the terminal strip.
(16) Dead Front Disconnect Switch – (OPT)
WARNING
When the dead front disconnect switch is in the “OFF”
position, supply power remains energized at the blower supply
power terminal strip and the top of the dead front disconnect
switch. When providing service on or near these terminals,
building supply power to the unit should be de-energized.
The dead front disconnect switch is factory installed in the
blower electrical section. The disconnect switch is designed so
that it must be turned “OFF” before entry to the electrical control
cabinet can be obtained (see Figure below). When in the “OFF”
position, power is disconnected to all unit wiring electrically
following the switch (See Warning). For servicing the unit, the
disconnect switch can be manually overridden by using a wrench
and turning the disconnect switch shaft 90° clockwise. Fusible
and circuit breaker switches available. For fusible switches,
Class “J” time delay fuses must be field provided matching the
fuse size listed on the Model Identification plate.
Figure 24.1 - Dead Front Disconnect Switch Assembly
(10) Furnace Low Voltage Terminal Strip – (STD)
The terminal strip is labeled to match the electrical wiring
diagram provided with the unit. All field wiring connections
should be made to the top side of the terminals to prevent
miswiring by modifying the factory wiring which is made to the
bottom of the terminal strip.
DISCONNECT
SWITCH HANDLE
OPERATION
INSTRUCTION
LABEL
(11) Power Exhaust Relay – (STD)
The control relay is factory installed in the duct furnace electrical
junction box. On a call for heat, the relay coil is energized
resulting in the contacts energizing the power exhauster motor.
DISCONNECT
SWITCH HANDLE
SHOWN IN THE
"ON" POSITION
DISCONNECT
SWITCH HANDLE
SHOWN IN THE
"OFF" POSITION
(12) Furnace Supply Power Terminal Strip – (STD)
The terminal strip is labeled to match the electrical wiring
diagram provided with the unit. All field wiring connections
should be made to the bottom side of the terminals to prevent
miswiring by modifying the factory wiring which is made to the
top of the terminal strip.
(13) Control Step Down Transformer – (STD)
The control step down transformer is located in the duct furnace
electrical junction box. The transformer is used to step down
the supply power (115V, 208V, 230V, 460V, 575V) to 24V for the
gas controls, damper actuator, relays, etc. Refer to Model Digit
15 of the unit model nomenclature to determine the volt-amp
(VA) capacity of the transformer.
24
BLOWER SECTION
ELECTRICAL
COMPARTMENT
ACCESS DOOR
5-572.10
SUPPLY POWER
WIRING TERMINALS
(SEE WARNING)
COMPONENT DESCRIPTIONS
(17) Step Down Transformer Fuses – (OPT)
The transformer fuses are factory installed in the blower electrical
section. The fuses are included to protect the transformer.
(18) Step Down Transformer – (OPT)
The step down transformer is factory installed in the blower
electrical section. The transformer is required as follows:
Without Evap Cooler (Model Digit 22=0)
•
Supply voltage of 460V/3Ph or 575V/3Ph (Model Digit 14=F
or G). The transformer reduces the voltage to 115V for the
power exhauster(s).
With Evap Cooler (Model Digit 22=D)
•
Supply voltage of 208V/1Ph or 208V/3Ph (Model Digit 14=B
or D). The transformer reduces the voltage to 115V for the
evaporative cooler. The power exhauster(s) will be 208V.
•
Supply voltage of 460V/3Ph or 575V/3Ph (Model Digit 14=F
or G). The transformer reduces the voltage to 115V for the
power exhauster(s) and evaporative cooler.
(22) Return Air Fire Stat – (OPT)
The return air fire stat is factory installed in the blower electrical
section with the sensor in the return air stream. In case of
elevated temperatures at the sensor, the manual reset switch
shuts down the entire unit. If the limit temperature is exceeded, a
service person must inspect the unit for the cause of the high
temperature, take corrective action, and then reset the switch.
(23) Blower Housing – (STD)
The blower section contains a double width, double inlet (DWDI)
blower wheel. Both sides of the blower must be free from
obstructions for proper operation. For Right Hand units (Model
Digit 9 = R), during operation the blower wheel should rotate in
the clockwise direction when viewed from the service side of the
unit. For Left Hand units (Model Digit 9 = L), the blower wheel
should rotate in the counterclockwise direction when viewed from
the service side of the unit. If necessary, interchange supply
power wiring to reverse blower rotation.
(19) Minimum Positioner – (OPT) (All Except Model Digit
12=9)
The factory installed minimum positioner is installed in the blower
electrical section and is used with a modulating damper actuator
to set the minimum percentage of outside air. The minimum
positioner dial is manually set between 0 to 100% resulting in a
2 to 10 VDC signal being sent to the damper actuator. When
used in conjunction with the Proportional Temp Controller, the
positioner sets the minimum outside air percentage and the
Proportional Temp Controller then modulates between the
minimum position and 100% outside air.
(24) Pillow Block Bearings – (OPT)
The blower can be provided with either spider or pillow block
bearings. Spider bearings are permanently lubricated and do not
require lubrication. Pillow block bearings are shipped nongreased from the factory and require lubrication before start-up.
For lubrication recommendations, see Lubrication
Recommendations.
(25) Blower Motor – (STD)
The blower motor can be provided in a variety of supply voltages,
frame types, and motor horsepowers. Refer to the model
nomenclature to determine the type of motor provided. The
blower motor is supplied with an adjustable sheave that can be
used to increase/decrease the blower RPM. For instructions on
changing the blower RPM, refer to Blower Adjustments.
For units with the Modine Control System option (Model Digit
12=9), this feature is available as a damper control when
configured properly and does not require a separate additional
positioner.Refer to the latest revision of the Modine Control
System Manual, literature 74-510 for additional information.
(26) Filters – (OPT)
When filters are supplied with the unit, a rack and the filters are
factory installed in the blower section. The unit can be supplied
with 2" permanent filters, 2" pleated throwaway filters in MERV 8
or 13 ratings. For filter replacement, refer to Maintenance.
For all other configurations, the transformer is not required.
Figure 25.1 - Minimum Positioner
(27) Fresh Air Damper – (OPT)
When a fresh air damper is supplied with the unit, the damper is
used as an outside air shut-off damper. The damper is ultra low
leak, Class II leakage resistance (less than 10 CFM/ft² at 1"
W.C.) dampers with self-compensating stainless steel side seals
and santoprene and galvanized steel blade seals.
(20, 21) Extended Grease Lines – (OPT)
The extended grease lines (21) are factory installed in the blower
section and include Zerk® grease fittings (20) factory installed on
the exterior corner post between the electrical and blower
sections. This option allows the pillow block bearings to be
lubricated with a grease gun without requiring the service
personnel to remove both blower doors to access the bearings.
Refer to Lubrication Recommendations for additional information.
(29) Rainhood and Birdscreen – (OPT)
The rainhood and birdscreen is shipped loose for field
installation at the back of the blower section. For installation
instructions, refer to Literature 5-589, latest revision.
5-572.10
25
COMPONENT DESCRIPTIONS
(30) Direct Drive Damper Actuator – (OPT)
The direct drive damper actuator is factory installed on the side
of the fresh air damper. The return air damper, if provided, is
controlled by the damper linkage between the two dampers. All
damper actuators are low voltage (24V). For Right Hand units
(Model Digit 9 = R), during operation the actuator should rotate in
the counterclockwise direction when viewed from the service
side of the unit. For Left Hand units (Model Digit 9 = L), the
actuator should rotate in the clockwise direction when viewed
from the service side of the unit. Three different types of dampers
actuators can be provided: Two-Position, Modulating, and
Floating.
•
Two-Position Damper Actuator: A two-position actuator is
provided with Air Control options (Model Digits 20-21=DA
and EA). The actuator provides open/closed operation of
the fresh air damper. When the actuator is energized, the
fresh air damper is opened to 100% outside air in 75
seconds (for outside air percentages lower than 100%, refer
to the following section, "Setting the Damper Limiter").
Actuators are spring return, so when the damper is
de-energized, the fresh air damper will spring closed.
Actuator include auxiliary switches (one normally open and
one normally closed) that reverse when the damper actuator
is at 85° rotation (adjustable).
Setting the Damper Limiter: The two-position damper limiter
can be factory set to prevent the outside air damper from
opening 100%. Field adjustment of the two-position damper
limiter is accom­plished by the following:
1. Determine the maximum outside air % required.
2. Locate the angle of rotation limiter on the actuator so
that its edge lines up with the degree graduation on the
actuator face corresponding to the required rotation.
(See figure below which is shown at 50% rotation limit.)
3. Position the limiter to the desired position, making sure
the locating “teeth” on the limiter are engaged into the
locating holes on the actuator.
4. Fasten the limiter to the actuator using the screw
provided.
5. Test the damper rotation either manually with the
manual crank or apply power. Re-adjust if necessary.
6. If the damper end switch is being used in the control
circuit and needs to be adjusted for the new limit
position, refer to the next section, "Adjusting the
Damper End Switch".
Adjusting the Damper End Switch: If the damper limiter was
adjusted in the previous section, it may be required to
adjust the Damper End Switch as follows:
1. The actuator must be in its fail-safe position.
2. Insert the crank handle into the Torx shaped hole in the
center of the adjustable switch pointer as shown below.
3. Gently rotate the crank until the switch pointer is at the
desired switch point in degrees as shown.
Figure 26.2 - Adjusting the Damper End Switch
•
For units with the Modine Control System option (Model
Digit 12=9), when the damper control is modulating, Model
Digits 20-21 will always be GA and the control will be
integral to the Modine Control System control logic. Refer
to the latest revision of the Modine Control System Manual,
literature 74-510 for additional information.
•
Figure 26.1 - Two-Position Damper Actuator Limiter
PHILIPS SCREWDRIVER
26
Modulating Damper Actuator: A modulating actuator is
provided with Air Control options (Model Digits 20-21=GA,
GB, GC, GD, GE, GG, GH, and GJ). The actuator provides
incremental operation of the fresh air damper (the return air
damper is controlled by the fresh air damper position). Full
90° rotation of the actuator requires 150 seconds. Actuators
operate using a 0-10 Vdc input signal (Air Control GB
utilizes a resistor to convert from a 4-20 mA to 0-10 Vdc)
from a damper controller. Actuators are spring return, so
when the damper is de-energized, the fresh air damper will
spring closed.
5-572.10
Floating Damper Actuator (All Except Model Digit
12=9): A floating actuator is provided with Air Control
option (Model Digits 20-21=HP). The actuator provides
forward and reversing damper operation in response to
contact closures from the space pressure controller. When
above the desired high pressure setpoint, a contact on
the space pressure controller energizes the actuator to
drive the fresh air damper closed. When below the desired
low pressure setpoint, a contact on the space pressure
controller energizes the actuator to drive the fresh air
damper open. When the space pressure is between the
high and low setpoints, the damper remains at the fresh air
percentage that satisfied the space pressure controller. Full
90° rotation of the floating actuator requires 150 seconds.
For additional information on the space pressure controller,
refer to Literature 5-585.
The actuator is designed to “float” and therefore is not
spring return. When the unit is de-energized under normal
operation, the fresh air damper is powered closed. If the
supply power to the unit is interrupted before the damper
actuator can drive closed, the fresh air damper will remain
open.
COMPONENT DESCRIPTIONS
(31) Enthalpy Controller – (OPT) (All Except Model Digit
12=9)
An enthalpy controller is provided with Air Control option (Model
Digits 20-21=GJ). The purpose of the enthalpy controller is to
use outside air for free cooling, whenever possible, to reduce
compressor operation of the mechanical cooling system.
The economizer functions as a true first stage of cooling and
minimizes energy usage during the cooling cycle.
The components used for the Enthalpy Economizer are:
•
Enthalpy Economizer Controller. The controller is used in
conjunction with the Enthalpy Sensor and a Mixed Air
Temperature sensor. The controller is factory mounted in
the blower control cabinet.
•
Outside Air Enthalpy Sensor. The sensor provides a
signal in relation to enthalpy (temperature and humidity) of
the outside air and is installed in the outside air stream.
•
Mixed Air Temperature Sensor. The sensor is factory
installed in the blower section to sense the mixed air
temperature of the fresh and return air streams.
(34) Proportional Temperature Controller – (OPT) (All
Except Model Digit 12=9)
A proportional temperature controller sensor is provided with
Air Control options (Model Digits 20-21=GG or GH) and factory
installed in the blower section. The sensor provides the mixed
air temperature signal to the A350P Proportional Temperature
Controller which is mounted in the electrical section. The
controller sends a 2-10 Vdc signal to the modulating damper
actuator in order to maintain the setpoint of the mixed air. The
controller includes a set point dial that must be field set to the
desired mixed air temperature (typically 55°F). This acts as a dry
bulb economizer, primarily by utilizing warmer outside air as first
stage heating to minimize gas heat energy usage.
Figure 27.2 - Proportional Temperature Controller
For complete details on the Enthalpy Economizer controller
setup and sequence of operation, please refer to Literature
5-598, latest revision.
Figure 27.1
Enthalpy Controller (Model Digits 20-21=GJ Only)
For units with the Modine Control System option (Model Digit
12=9), when the damper control is dry economizer, Model Digits
20-21 will always be GA and the control will be integral to the
Modine Control System control logic. Refer to the latest revision
of the Modine Control System Manual, literature 74-510 for
additional information.
For units with the Modine Control System option (Model Digit
12=9), when the damper control is enthalpy economizer, Model
Digits 20-21 will always be GA and the control will be integral
to the Modine Control System control logic. Refer to the latest
revision of the Modine Control System Manual, literature 74-510
for additional information.
(35) Motor and Blower Vibration Isolation – (STD)
The motor vibration isolation is factory installed below the
blower support bracket. The four (4) neoprene vibration mount
grommets provide isolation of the blower housing and motor
from the blower support channels. The blower duct connection
is not rigidly mechanically fastened and the 1/4'' thick gasketing
around the duct transition provides vibration isolation.
Figure 27.3 - Blower/Motor Vibration Isolation
BLOWER
SUPPORT
(32) Damper to Damper Linkage – (OPT)
Units with fresh and return air dampers include a damper
actuator that controls the fresh air damper. The return air
damper position is controlled by the fresh air damper through
the connecting rod. For adjustment, refer to Damper Linkage
Adjustment.
BLOWER
SUPPORT
RAIL
NEOPRENE
VIBRATION
ISOLATOR
(33) Return Air Damper – (OPT)
When a return air damper is supplied with the unit, the damper
is factory installed in the blower section. The return air damper is
used as an air balancing damper so low leak, Class III leakage
resistance (less than 40 CFM/ft² at 1" W.C.) dampers with selfcompensating stainless steel side seals and santoprene blade
seals are used.
(36) Blower Support – (STD)
The blower supports are factory installed in the blower section.
The blower supports are used to rigidly support the weight of the
blower and motor during operation and shipping.
5-572.10
27
COMPONENT DESCRIPTIONS
(37) Convenience Outlet – (OPT)
The convenience outlet is factory installed in the blower section
for providing power for 115V service equipment (trouble light,
power tools, etc.). The 115V ground fault circuit interrupter
(GFCI) is rated for 15 amps and includes test and reset
switches. A separate field supplied 115V/1Ph power supply must
be routed through the electrical section wall into the back of the
WARNING
Do not perform service on the convenience outlet without
disconnecting its power supply. The convenience outlet
power supply is separate from main power supply to the
unit. When the main disconnect switch is de-energized, the
convenience outlet power supply remains energized.
convenience outlet junction box.
(38) Blower Door Switch – (OPT)
The blower door switch is installed inside the blower section
door on the access side of the unit. If the door is removed, the
switch interrupts power to the low voltage circuit. For single
phase units 1-1/2 Hp and less, the switch de-energizes a relay
that controls blower motor operation. For three phase units and
single phase units 1-1/2 Hp and greater, the switch de-energizes
the motor starter that controls blower motor operation. For
servicing, the switch has an override position that can be
manually pulled out to override the switch as shown below. For
units with Modine Control System option (Model Digit 12=9), the
switch is wired to a digital input on the unit controller.
(39) Dirty Filter Switch – (OPT)
The dirty filter pressure switch is factory installed in the blower
electrical section. The switch monitors the pressure differential
between the two sides of the filters. When the filters become
dirty, the differential pressure increases and trips the pressure
switch which energizes a light on the remote monitoring panel
(for units with Modine Control System option (Model Digit 12=9),
the switch is wired to a digital input on the unit controller). The
switch must be field set with ductwork installed and the blower
in operation.
Setting the Dirty Filter Switch
The range of the switch is adjustable between 0.17" to 5.0" W.C.
1. Ensure that the unit filters are clean or replace if necessary.
2. Connect leads of a continuity tester to the NO and C
terminals of the pressure switch. See the figure below.
3. Turn the set screw of the pressure switch clockwise until
it stops. This will set the pressure at 5.0" W.C. and the
continuity tester should be sensing an open circuit.
4. Begin turning the screw counterclockwise until the
continuity tester senses a closed circuit. This determines
the base pressure of the system.
5. Turn the screw clockwise until the continuity tester senses
an open circuit and then one additional full turn (This is
approx­imately 0.25" W.C.) This will allow for the increase in
static pressure due to dirty filters.
Figure 28.2
Dirty Filter Pressure and/or Air Flow Proving Switch
Figure 28.1 - Blower Door Switch with Manual Override
OPEN
DOOR CLOSED DOOR
POSITION
POSITION
OVERRIDE
POSITION
NEGATIVE
PRESSURE
CONNECTION
NC NO
5-572.10
C
NO
PRESSURE
ADJUSTMENT
SET SCREW
COM
28
POSITIVE
PRESSURE
CONNECTION
COMPONENT DESCRIPTIONS
(40) Motor Starter – (OPT)
The motor starter is factory installed in the blower electrical
section. A motor starter is required for:
•
All three phase motors
•
Single phase motors 1-1/2 Hp and greater
If the factory installed motor starter option was not ordered with
a unit that requires it, a motor starter must be field supplied and
installed. Alternatively for three phase motors, see also the
Variable Frequency Drive option below.
The overload module of the motor starter is designed to protect
the motor from exceeding the nameplate amps. If the motor
exceeds the amp draw on the current set point dial, the trip
condition is indicated by a red color in the trip indicator window.
The current set point dial is factory set to the motor full load
amps listed on the motor nameplate.
The motor starter can be placed in the automatic or manual
reset positions. Automatic reset is accomplished by depressing
the “RESET” button and turning the button 1/4 turn. When in
the automatic reset position, if the overload module trips, the
module will reset itself once the overload relay has cooled.
In the manual reset position, if the overload module trips, the
“RESET” button must be depressed before the blower can
operate.
The contactor module includes one (1) normally open auxiliary
contact. The contact rating is 10 amps.
Figure 29.1 - Motor Starter
A1
1
5
L2
13
L3
NO
CONTACTOR
MODULE
CURRENT
SET POINT
DIAL
TRIP
INDICATOR
WINDOW
2
4
T1
6
T2
14
T3
NO
RESET
A2
OVERLOAD
MODULE
A R
E
S
E
T
H
NO
98
2
NC
97
T1
4
95
T2
96
6
(42) Proportional Temperature Controller – (OPT)
Refer to description for item # 40.
(43) Warm-Up Stat – (OPT) (All Except Model Digit 12=9)
A warm-up stat can be provided with Air Control options (Model
Digits 20-21=EA, GG, or GH) and factory installed in the blower
electrical section with the sensor in the return air stream. The
warm-up thermostat monitors the return air temperature upon
changing to the occupied mode and prevents the fresh air
dampers from opening until the temperature of the return air has
reached the desired set point (typically 65°F or 5°F below the
room temperature).
(44) Blower Supply Power Terminal Strip – (STD)
The terminal strip is labeled to match the electrical wiring
diagram provided with the unit. All field wiring connections
should be made to the bottom side of the terminals to prevent
miswiring by modifying the factory wiring which is made to the
top of the terminal strip.
A2
3
L1
(41) Mild Temperature Stat – (OPT) (All Except Digit 12=9)
The mild temperature thermostat is factory installed in the
blower electrical section. The mild temperature thermostat is
designed to lockout the burner during mild weather conditions
which prevents the burner from cycling. The thermostat must be
field set to the desired mild temperature condition (refer to the
latest revision of Modine Literature 75-540).
For units with the Modine Control System option (Model Digit
12=9), this feature is integral to the control logic and utilizes
existing sensors included with that option. Refer to the latest
revision of the Modine Control System Manual, literature 74-510
for additional information.
T3
(40) Variable Frequency Drive – (OPT)
The VFD controller adjusts the motor rpm to vary the unit air
flow. The minimum air flow may be varied between 30 and
100% of the full speed air flow depending on the controls
selection of the unit (refer to the section "Variable Air Volume
Applications" on page 21 for additional information).
The control changeover options include two speed, building
pressure control, and building management control. For units
with the Modine Control System option (Model Digit 12=9),
additional control options may be available. Refer to the latest
revision of the Modine Control System Manual, literature 74-510
for additional information.
(45) Service Switches – (OPT) (All Except Model Digit 12=9)
The service switches are factory installed in the blower electrical
section. The service switches allow for service personnel to
independently test operation of the damper, blower, and furnace
without using jumper wires. The switches override the remote
monitoring panel and/or thermostats to energize each compo­
nent directly. All switches need to be reset to the “OFF” position
after testing otherwise the components will remain energized.
For units with the Modine Control System option (Model Digit
12=9), this feature is integral to the control logic and provides
service personnel with real-time operating status of the unit
systems. Refer to the latest revision of the Modine Control
System Manual, literature 74-510 for additional information.
Figure 29.2 - Service Switches
SYSTEM OVERRIDE SWITCH POSITIONS
DAMPERS ONLY
ON
OFF
OFF
DAMPERS & BLOWER ONLY
ON
ON
OFF
DAMPERS, BLOWER & FURNACE ONLY
ON
ON
ON
* RESET SWITCHES TO “OFF” POSITION AFTER TESTING
ON
ON
ON
OFF
5-572.10
OFF
5H0756370000 REV B
OFF
29
COMPONENT DESCRIPTIONS
(46) Electronic Modulation Amplifier – (OPT)
An electronic modulation amplifier is provided factory installed
in the duct furnace electrical junction box when the unit is
equip­ped with Electronic Modulating Gas Controls (Model Digit
12=4). The amplifier processes the thermostat temperature
and set point signals to modulate the firing rate between 40%
to 100% full fire. For additional information, refer to Control
Operating Sequence.
(50) Supply Air Fire Stat – (OPT)
The supply air fire stat is factory installed in the duct furnace
electrical junction box with the sensor in the discharge air
stream. In case of elevated temperatures in the supply air
stream, the manual reset switch shuts down the entire unit. If
the limit temperature is exceeded, a service person must inspect
the unit for the cause of the high discharge temperature, take
corrective action, and then reset the switch.
(47) Electronic Modulating Gas Valve – (OPT)
An electronic modulating gas valve is provided factory installed
in the duct furnace gas train when the unit is equipped with
Electronic Modulating Gas Controls (Model Digit 12=4, 7, 8,
or 9). The gas valve modulates the firing rate between 40%
to 100% full fire based on the input signal from the Electronic
Modulation Amplifier (Model Digit 12=4), Signal Conditioner
(Model Digit 12=7 or 8), or Modine Control System controller
(Model Digit 12=9). For additional information, refer to the
Furnace Control Operating Sequence section in this manual.
(51) Main Gas Valve – (STD)
The main gas valve is factory installed in the duct furnace gas
train. The main gas valve provides the pilot, regulator, main gas,
and manual shutoff functions. For additional information, see the
supplier literature included with the unit.
(48) Air Flow Proving Switch – (OPT)
The air flow proving switch is factory installed in the duct furnace
electrical junction box. The air flow proving switch monitors
the pressure differential between the duct furnace and the
atmosphere. The purpose of the air flow proving switch is to cut
power to the gas controls if a positive pressure is not measured
by the switch. This could be caused by a lack of air movement
through the heat exchanger.
NOTE: The air flow proving switch will prevent any heat
exchanger warm-up because the gas controls can not
be energized until air flow is proven.
Setting the Air Flow Proving Switch
The range of the switch is adjustable between 0.17" to 5.0" W.C.
1. Set the thermostat or controller so that there is a call for
heat. For units with the Modine Control System option
(Model Digit 12=9), refer to the latest revision of the
Modine Control System Manual, literature 74-510 for
additional information.
2. Turn the set screw of the pressure switch clockwise until it
stops. This will set the pressure at 5.0" W.C.
3. Turn the screw counter-clockwise until the gas controls
light and then one additional full turn. This will allow for
dirty filters or other slight system static pressure increases.
(49) High Limit Switch
The high limit switch is factory installed in the duct furnace
electrical junction box. If the limit temperature is exceeded, the
gas controls are de-energized. Two types of high limit switches
are offered:
•
Automatic – (STD): The automatic reset high limit will reset
when the switch is cooled.
•
Manual – (OPT): The manual reset high limit switch is
factory installed in place of the standard automatic reset
high limit switch. In case of a failure of the blower motor,
blockage of the inlet air, etc., the manual reset switch
prevents the unit from cycling on the high limit. If the limit
temperature is exceeded, a service person must inspect the
unit for the cause of the high temperature, take corrective
action, and then reset the switch.
30
(52) Burner Box – (STD)
The burner box is located in the duct furnace section and
contains the burner and pilot assembly. The burner box includes
an access panel for removal of the burner for inspection and
servicing.
(53) Direct Drive Discharge Damper Actuator – (OPT)
The direct drive damper actuator is factory installed on the side
of the discharge damper (available as an option on units with
Model Digit 2=D or P). All discharge damper actuators are low
voltage (24V), two-position, spring return type. For Right Hand
units (Model Digit 9 = R), during operation the actuator should
rotate in the counterclockwise direction when viewed from the
service side of the unit. For Left Hand units (Model Digit 9 = L),
the actuator should rotate in the clockwise direction when viewed
from the service side of the unit.
The actuator provides open/closed operation of the discharge air
damper. When the actuator is energized, the damper is opened
to 100% outside air in 75 seconds. Actuators are spring return,
so when the damper is de-energized, the air damper will spring
closed. Actuator include auxiliary switches (one normally open
and one normally closed) that reverse when the damper actuator
is at 85° rotation (adjustable). When the damper is closed, the
unit is not operating.
(54) Discharge Damper – (OPT)
When a discharge air damper is supplied with the unit, the
damper is factory installed in the downturn plenum section. The
discharge air damper is used an outside air shut-off damper so
ultra low leak, Class II leakage (less than 10 CFM/ft² at 1" W.C.)
dampers with self-compensating stainless steel side seals and
santoprene and galvanized steel blade seals are used.
5-572.10
COMPONENT DESCRIPTIONS
(Not Shown) Circuit Analyzer – (OPT) (All Except Digit 12=9)
The circuit analyzer is factory installed on the door of the
electrical section. The circuit analyzer is used to quickly assist
service personnel in troubleshooting by monitoring the unit firing
sequence and vital operating steps. Lights will come on as a
point of electrical operation is passed and proven. If any light is
not lit, that is the point where failure occurred.
For units with the Modine Control System option (Model Digit
12=9), this feature is integral to the control logic and provides
service personnel with real-time operating status of the unit
systems. Refer to the latest revision of the Modine Control
System Manual, literature 74-510 for additional information.
For Modine Control System Units Only (Model Digit 12=9)
The following items may be included with units configured with
the Modine Control System option:
(56) Carel pCOOEM+ Microprocessor Controller
The Modine Controls System utilizes a Carel pCOOEM+
programmable microprocessor controller that is factory
installed in the duct furnace electrical section.
(57) Carel pLDPro User Interface Panel
The interface allows a user to access the Carel controller
for setpoint changes and to view the operational status
of the equipment. The interface features an LED backlit
graphic display and buttons for excellent visibility.
Figure 31.1 - Circuit Analyzer 
(58) Control Relays - (OPT)
The control relay(s) are factory installed in the duct furnace
electrical junction box. The relay has a 24V coil with doublepole, double throw (DPDT) contacts. Refer to the unit wiring
diagram for the switching function of the relay. The two
normally open and two normally closed contacts are rated
for a maximum of 8A @ 230V/1Ph.
(59) Unit Enable Relay - (OPT)
The control relay is factory installed in the duct furnace
electrical junction box and is used to enable the unit based
on contact closure from a customer enable circuit. The
closing of that contact will power a 24V relay from the unit
mounted controller and enable the unit in On or Occupied
mode. The relay provides electrical isolation to the
controller for protection.
j Circuit Analyzer tagging will vary based on the unit ordered. Circuit
analyzer shown is for reference only.
(60) Wiring Channels with Cover - (STD)
The wiring channels organize and separate high voltage
and low voltage wiring.
(61) Return Air Sensor (not shown) - (OPT)
This sensor is required on all units that have a mixture of
outside and return air. The sensor is field mounted in the
return air ductwork. It may be dry bulb only or enthalpy
(temperature and humidity).
(62) Outside Air Sensor (not shown) - (OPT)
This sensor is required on all units except 100% return air
units and is field installed. Depending on the unit
configuration, the sensor may be duct mounted or remote
mounted. It may be dry bulb only or enthalpy (temperature
and humidity).
(63) Mixed Air Sensor (not shown) - (OPT)
This sensor is required on all units that have a mixture of
outside and return air and is factory mounted in the blower
cabinet. The sensor is dry bulb temperature only.
Refer to the latest revision of the Modine Control System
Manual, literature 74-510 for additional information.
5-572.10
31
GENERAL PERFORMANCE DATA
Table 32.1 - General Performance Data
Model Size
(Digits 4-6)
Btu/Hr
Input j
Btu/Hr
Output j
75
75,000
60,750
100
100,000
81,000
125
125,000
101,250
150
150,000
121,500
175
175,000
141,750
200
225
250
300
350
400
500
600
700
800
840
960
200,000
225,000
250,000
300,000
350,000
400,000
500,000
600,000
700,000
800,000
1,050,000
1,200,000
162,000
182,250
202,500
243,000
283,500
324,000
405,000
486,000
567,000
648,000
850,500
972,000
Blower Style/Size
Temperature Rise (°F)
(Digit 16)
Size
Minimum
CFM k
Maximum
CFM
Maximum
Minimum
A or B
9-7
562
1800
100
31
C or D
9-9
750
2813
75
20
C or D
9-9
750
3000
100
25
E or F
12-12
1500
3750
50
20
C or D
9-9
937
3000
100
31
E or F
12-12
1500
4688
63
20
C or D
9-9
1125
3000
100
38
E or F
12-12
1250
5550
90
20
C or D
9-9
1312
3000
100
44
E or F
12-12
1312
5550
100
24
C or D
9-9
1500
3000
100
50
E or F
12-12
1750
5000
86
30
G or H
15-15
1750
6500
86
23
C or D
9-9
1687
3000
100
56
E or F
12-12
1750
5000
96
34
G or H
15-15
1750
6500
96
26
E or F
12-12
1875
5500
100
34
G or H
15-15
1875
6500
100
29
I, J, or K
18-18
3000
9375
63
20
E or F
12-12
2250
5500
100
41
G or H
15-15
2250
6500
100
35
I, J, or K
18-18
3000
11250
75
20
E or F
12-12
2625
5500
100
48
G or H
15-15
2625
6500
100
40
I, J, or K
18-18
4000
12000
66
22
E or F
12-12
3000
5500
100
55
G or H
15-15
3000
6500
100
46
I, J, or K
18-18
4000
12000
75
25
G or H
15-15
3125
6500
120
58
I, J, or K
18-18
4000
9375
94
40
L
20-18
4000
9375
94
40
G or H
15-15
3750
6500
120
69
I, J, or K
18-18
4000
11250
113
40
L
20-18
5000
11250
90
40
G or H
15-15
4375
6500
120
81
I, J, or K
18-18
4375
13000
120
40
L
20-18
4375
13000
120
40
G or H
15-15
5000
6500
120
92
I, J, or K
18-18
5000
13000
120
46
L
20-18
5000
14500
120
41
I, J, or K
18-18
6562
13000
120
61
L
20-18
6562
13000
120
61
I, J, or K
18-18
7500
13000
120
69
L
20-18
7500
14500
120
62
jR
atings are shown for elevations up to 2,000 feet. For higher elevations, refer to section "Considerations for Elevation" on page 10.
k For Variable Air Movement Applications, see page 21.
32
5-572.10
GENERAL PERFORMANCE DATA
Table 33.1 - Air Temperature Rise jkl
Model Size
Btu/Hr
Input j
Btu/Hr
Output j
Air Temperature Rise Through Unit (°F)
20
40
50
60
70
80
90
100
110
120
75
75,000
60,750
2,813
1,406
1,125
938
804
703
625
562
-
-
100
100,000
81,000
3,750
1,875
1,500
1,250
1,071
938
833
750
-
-
125
125,000
101,250
4,688
2,344
1,875
1,563
1,339
1,172
1,042
937
-
-
150
150,000
121,500
5,500
2,813
2,250
1,875
1,607
1,406
1,250
1,125
-
-
175
175,000
141,750
5,500
3,281
2,625
2,188
1,875
1,641
1,458
1,312
-
-
200
200,000
162,000
6,500
3,750
3,000
2,500
2,143
1,875
1,667
1,500
-
-
225
225,000
182,250
6,500
4,219
3,375
2,813
2,411
2,109
1,875
1,687
-
-
250
250,000
202,500
9,375
4,688
3,750
3,125
2,679
2,344
2,083
1,875
-
-
300
300,000
243,000
11,250
5,625
4,500
3,750
3,214
2,813
2,500
2,250
-
-
350
350,000
283,500
12,000
6,563
5,250
4,375
3,750
3,281
2,917
2,625
-
-
400
400,000
324,000
12,000
7,500
6,000
5,000
4,286
3,750
3,333
3,000
-
-
500
500,000
405,000
-
9,375
7,500
6,250
5,357
4,688
4,167
3,750
3,409
3,125
600
600,000
486,000
-
11,250
9,000
7,500
6,429
5,625
5,000
4,500
4,091
3,750
700
700,000
567,000
-
13,000
10,500
8,750
7,500
6,563
5,833
5,250
4,773
4,375
800
800,000
648,000
-
14,500
12,000
10,000
8,571
7,500
6,667
6,000
5,455
5,000
840
1,050,000
850,500
-
-
-
13,000
11,250
9,844
8,750
7,875
7,159
6,562
960
1,200,000
972,000
-
-
-
14,500
12,857
11,250
10,000
9,000
8,182
7,500
j Ratings are shown for elevations up to 2000 feet. For higher elevations, refer to section "Considerations for Elevation" on page 10.
k Minimum Air Temperature Rise, Maximum Air Temperature Rise, and Maximum Discharge Air Temperature are as follows:
-For Model Sizes 75-400, Min Air Temp Rise is 20°F, Max Air Temp Rise is 100°F, and Max Discharge Air Temp is 150°F.
-For Model Sizes 500-800, Min Air Temp Rise is 40°F, Max Air Temp Rise is 120°F, and Max Discharge Air Temp is 150°F.
-For Model Sizes 840-960, Min Air Temp Rise is 60°F, Max Air Temp Rise is 120°F, and Max Discharge Air Temp is 150°F.
-Note that these are typical limits but may vary by Model Size. Refer to Table 32.1 for actual limits.
l For Variable Air Movement Applications, see page 21.
Air Temperature Limits
The maximum allowable discharge air temperature is 150°F. The maximum allowable air temperature rise per furnace for Low Air
Temperature Rise Units is 60°F. All system units are designed for a maximum allowable total static pressure of 3.0" W.C.
5-572.10
33
OPTION & ACCESSORY PRESSURE DROP DATA
Table 34.1 - Option & Accessory Pressure Drop Tables (in ''W.C.) j
Unit Size
Digit 16
75
A, B, C, D
100/125
C, D, E, F
150/175
C, D, E, F
200/225
C, D, E, F, G, H
E, F, G, H
250/300
500/600
I, J, K
E, F, G, H
350/400
700/800
840/960
I, J, K
Filters
Evap Cooler, 12” Media
Other
CFM
2”
Permanent
2” Farr
Aeropleat
2”
Farr 30/30
Without
Pre-Filters
With
Pre-Filters
Downturn
Plenum
Rainhood and
Birdscreen
Discharge
Damper
556
600
700
800
1,000
1,200
1,400
1,600
1,800
2,000
2,300
2,778
741
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
4,630
1,111
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
5,200
5,556
1,481
2,000
2,500
3,000
3,500
4,000
4,500
5,000
5,500
6,000
6,500
1,852
2,000
2,500
3,000
3,500
4,000
4,500
5,500
6,500
7,250
1,925
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,400
11,111
2,593
3,000
3,500
4,000
4,500
5,000
5,500
6,000
6,500
7,000
2,593
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,050
12,000
12,500
13,000
0.01
0.01
0.01
0.01
0.02
0.02
0.03
0.04
0.04
0.05
0.07
0.09
0.02
0.02
0.04
0.06
0.08
0.11
0.13
0.16
0.20
0.21
0.02
0.03
0.04
0.06
0.08
0.11
0.13
0.16
0.19
0.21
0.23
0.02
0.02
0.04
0.05
0.06
0.08
0.10
0.11
0.14
0.16
0.18
0.02
0.03
0.04
0.06
0.08
0.10
0.13
0.19
0.26
0.32
0.01
0.03
0.05
0.08
0.11
0.15
0.20
0.25
0.33
0.38
0.02
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.10
0.11
0.01
0.02
0.03
0.04
0.05
0.07
0.09
0.12
0.14
0.17
0.20
0.22
0.24
0.02
0.02
0.03
0.03
0.04
0.05
0.06
0.07
0.08
0.10
0.11
0.15
0.02
0.03
0.05
0.07
0.10
0.13
0.16
0.20
0.25
0.26
0.03
0.04
0.06
0.09
0.11
0.14
0.18
0.21
0.25
0.27
0.30
0.03
0.04
0.05
0.07
0.09
0.11
0.13
0.16
0.19
0.22
0.25
0.05
0.05
0.07
0.10
0.12
0.15
0.18
0.25
0.34
0.41
0.03
0.05
0.08
0.11
0.15
0.19
0.24
0.30
0.38
0.43
0.04
0.05
0.06
0.07
0.09
0.10
0.12
0.14
0.16
0.18
0.02
0.02
0.04
0.05
0.07
0.10
0.12
0.15
0.18
0.22
0.26
0.28
0.30
0.03
0.03
0.04
0.04
0.05
0.06
0.07
0.09
0.10
0.11
0.13
0.16
0.02
0.04
0.07
0.10
0.14
0.19
0.24
0.30
0.37
0.39
0.04
0.05
0.08
0.11
0.15
0.18
0.23
0.27
0.32
0.34
0.38
0.03
0.04
0.06
0.08
0.10
0.12
0.15
0.18
0.21
0.25
0.28
0.05
0.06
0.09
0.11
0.15
0.18
0.22
0.31
0.42
0.51
0.03
0.05
0.09
0.12
0.16
0.21
0.27
0.33
0.42
0.47
0.04
0.05
0.06
0.08
0.10
0.12
0.14
0.17
0.19
0.22
0.02
0.03
0.04
0.06
0.08
0.11
0.13
0.16
0.19
0.23
0.27
0.29
0.31
0.02
0.02
0.03
0.04
0.06
0.08
0.11
0.15
0.19
0.23
0.31
0.45
0.02
0.04
0.08
0.15
0.23
0.34
0.46
0.60
0.07
0.07
0.09
0.12
0.17
0.22
0.29
0.36
0.44
0.53
0.68
0.96
0.08
0.12
0.23
0.36
0.53
0.73
0.97
1.23
0.00
0.00
0.01
0.01
0.01
0.02
0.03
0.04
0.05
0.06
0.08
0.12
0.00
0.01
0.02
0.04
0.07
0.11
0.15
0.19
0.25
0.26
0.02
0.02
0.04
0.05
0.07
0.10
0.13
0.17
0.21
0.23
0.26
0.02
0.03
0.04
0.06
0.09
0.11
0.14
0.18
0.21
0.26
0.30
0.02
0.02
0.03
0.04
0.06
0.08
0.10
0.15
0.21
0.27
0.02
0.04
0.08
0.12
0.18
0.25
0.33
0.42
0.57
0.66
0.02
0.03
0.04
0.05
0.06
0.07
0.09
0.10
0.12
0.14
0.02
0.03
0.05
0.07
0.10
0.14
0.19
0.24
0.30
0.36
0.43
0.47
0.51
0.01
0.01
0.01
0.02
0.03
0.03
0.04
0.06
0.07
0.08
0.11
0.15
0.03
0.05
0.07
0.10
0.13
0.16
0.19
0.22
0.25
0.26
0.02
0.03
0.05
0.08
0.10
0.14
0.18
0.22
0.27
0.29
0.33
0.03
0.05
0.08
0.10
0.14
0.18
0.22
0.27
0.32
0.38
0.45
0.07
0.08
0.09
0.12
0.14
0.16
0.19
0.25
0.31
0.37
0.07
0.12
0.16
0.22
0.28
0.35
0.42
0.51
0.64
0.71
0.03
0.04
0.05
0.07
0.09
0.11
0.14
0.17
0.20
0.23
0.03
0.04
0.07
0.11
0.17
0.23
0.30
0.38
0.48
0.58
0.69
0.75
0.81
0.00
0.01
0.01
0.01
0.01
0.01
0.02
0.02
0.03
0.03
0.04
0.06
0.01
0.01
0.02
0.03
0.04
0.05
0.07
0.09
0.11
0.11
0.01
0.01
0.02
0.02
0.04
0.05
0.06
0.08
0.10
0.11
0.13
0.01
0.01
0.02
0.04
0.05
0.06
0.08
0.10
0.12
0.14
0.16
0.02
0.02
0.03
0.04
0.06
0.07
0.09
0.13
0.18
0.23
0.02
0.04
0.07
0.11
0.16
0.21
0.28
0.35
0.47
0.53
0.01
0.01
0.01
0.01
0.02
0.02
0.03
0.04
0.04
0.05
0.01
0.01
0.01
0.02
0.04
0.05
0.08
0.10
0.14
0.17
0.21
0.23
0.26
4000 Max CFM for Evap
0.03
0.09
0.05
0.15
0.09
0.24
0.14
0.34
0.20
0.46
0.27
0.61
0.35
0.77
0.45
0.95
0.55
1.15
0.60
1.23
5200 Max CFM
0.04
0.12
0.07
0.19
0.10
0.27
0.15
0.36
0.20
0.47
0.27
0.60
0.34
0.73
0.42
0.89
0.50
1.05
0.60
1.23
6000 Max CFM
0.05
0.15
0.06
0.17
0.09
0.24
0.13
0.32
0.17
0.41
0.23
0.52
0.29
0.64
0.43
0.91
0.60
1.23
6500 Max CFM
0.02
0.08
0.05
0.15
0.09
0.23
0.14
0.34
0.20
0.46
0.27
0.61
0.35
0.77
0.45
0.95
0.60
1.23
10400 Max CFM
0.05
0.16
0.07
0.20
0.10
0.25
0.13
0.32
0.16
0.39
0.20
0.47
0.24
0.55
0.29
0.64
0.34
0.74
0.39
0.85
0.03
0.11
0.04
0.14
0.08
0.22
0.12
0.31
0.18
0.42
0.24
0.55
0.32
0.70
0.40
0.86
0.50
1.04
0.61
1.24
11050 Max CFM
j Accessory / Option static pressure losses are approximate. Please consult the Accuspec selection software for static pressure losses at other than listed CFM.
34
5-572.10
BLOWER PERFORMANCE DATA
Table 35.1 - Unit Performance Tables jk
Air
Digit
Temp.
Unit Size 16
Rise
75
A,B
75
C,D
100/125 C,D
Start 125
100/125
E,F
End 100
150/175 C,D
Start 175
150/175
E,F
200/225 C,D
Start 225
200/225
E,F
200/225
G,H
100°F / 79°F / 69°F / 56°F / 46°F / 40°F / 35°F / 31°F / 69°F / 56°F / 46°F / 40°F / 35°F / 31°F / 28°F / 24°F / 20°F / 100°F / 80°F/100°F
62°F/77°F
53°F/66°F
41°F/51°F
34°F/42°F
28°F/36°F
25°F/31°F
41°F/51°F
34°F/42°F
28°F/36°F
25°F/31°F
22°F/27°F
20°F/25°F
- / 23°F
- / 20°F
100°F/117°F
86°F/100°F
79°F/93°F
62°F/72°F
51°F/59°F
43°F/50°F
37°F/43°F
86°F/100°F
79°F/93°F
62°F/72°F
51°F/59°F
43°F/50°F
37°F/43°F
33°F/38°F
29°F/34°F
26°F/31°F
24°F/28°F
21°F/25°F
100°F/113°F
89°F/100°F
85°F/95°F
74°F/83°F
66°F/74°F
59°F/67°F
54°F/61°F
49°F/56°F
85°F/95°F
74°F/83°F
59°F/67°F
49°F/56°F
42°F/48°F
37°F/42°F
33°F/37°F
30°F/33°F
85°F/95°F
74°F/83°F
59°F/67°F
49°F/56°F
42°F/48°F
37°F/42°F
33°F/37°F
30°F/33°F
27°F/30°F
25°F/28°F
0.25
CFM BHP RPM
556 0.09
679
700 0.14
747
800 0.18
801
1000 0.29
917
1200 0.45 1042
1400 0.66
1173
1600 0.93 1308
1800 1.28 1445
800
1000
1200 0.19
705
1400 0.27
770
1600 0.37
839
1800 0.49
912
2000 0.65
987
2300 0.94
1104
2778 1.59 1296
741
926 0.13
670
1200 0.22
758
1400 0.30
828
1800 0.55
982
2200 0.93
1145
2600 1.45 1315
3000 2.16 1489
1800 0.28
497
2200 0.43
553
2600 0.63
614
3000 0.91
680
3400 1.26
748
3704 1.58
802
4100 2.09
873
4630 2.93
969
1111 0.19
727
1296 0.27
793
1400 0.32
832
1800 0.59
994
2200 1.00
1166
2600 1.58 1344
3000 2.35 1526
1296
1400 0.17
474
1800 0.28
526
2200 0.44
588
2600 0.67
657
3000 0.96
729
3400 1.35
804
3800 1.82
880
4200 2.40
959
4700 3.30 1058
5200 4.40
1158
1481 0.36
871
1667 0.48
943
1750 0.54
975
2000 0.76 1077
2250 1.04
1181
2500 1.38 1288
2750 1.79 1396
3000 2.28 1506
1750 0.29
594
2000 0.40
642
2500 0.68
746
3000 1.09
857
3500 1.66
972
4000 2.40 1091
4500 3.34
1211
5000 4.52 1332
1750 0.20
425
2000 0.26
449
2500 0.42
507
3000 0.65
571
3500 0.97
639
4000 1.38
710
4500 1.90
783
5000 2.54
858
5500 3.32
933
6000 4.25 1009
0.50
BHP
RPM
0.15
0.21
0.26
0.39
0.57
0.80
1.09
1.46
0.15
0.20
0.27
36.00
0.47
0.60
0.77
1.08
1.75
0.15
0.21
0.31
0.41
0.69
1.10
1.65
2.39
0.41
0.58
0.81
1.11
1.48
1.83
2.35
3.23
0.28
0.37
0.42
0.72
1.16
1.76
2.57
0.25
0.28
0.41
0.59
0.83
1.15
1.55
2.05
2.66
3.58
4.71
0.48
0.61
0.68
0.92
1.21
1.57
2.00
2.51
0.43
0.54
0.85
1.29
1.88
2.65
3.62
4.82
0.33
0.40
0.58
0.83
1.17
1.60
2.14
2.81
3.61
4.57
871
924
966
1062
1171
1288
1412
1539
795
822
862
912
968
1030
1095
1200
1377
808
846
916
975
1108
1254
1410
1573
622
662
710
766
825
873
938
1028
884
937
970
1109
1264
1429
1600
609
615
650
697
753
815
881
951
1023
1116
1212
1016
1078
1106
1197
1291
1389
1490
1593
723
759
845
942
1047
1157
1270
1387
546
562
603
654
713
776
842
911
982
1054
BHP
0.22
0.29
0.35
0.50
0.69
0.94
1.25
0.21
0.28
0.35
0.45
0.57
0.72
0.90
1.22
1.92
0.23
0.29
0.41
0.53
0.83
1.27
1.85
2.61
0.56
0.75
1.00
1.32
1.72
2.08
2.63
3.53
0.38
0.47
0.54
0.86
1.32
1.95
2.78
0.37
0.40
0.55
0.75
1.01
1.35
1.77
2.29
2.92
3.87
0.60
0.75
0.82
1.08
1.39
1.77
2.22
2.75
0.58
0.71
1.04
1.50
2.12
2.91
3.91
0.48
0.56
0.75
1.02
1.38
1.83
2.40
3.08
3.91
4.89
0.75
RPM
1031
1074
1109
1192
1289
1395
1509
960
975
1003
1041
1087
1139
1197
1292
1456
962
993
1052
1103
1220
1354
1500
1654
735
762
800
847
899
942
1001
1085
1023
1066
1093
1216
1356
1510
1673
734
737
760
796
842
895
955
1018
1085
1172
1144
1198
1224
1306
1393
1484
1579
1677
838
866
938
1024
1119
1221
1329
653
662
692
732
782
839
899
963
1030
1099
.
Total Static Pressure, ''W.C.
1.00
1.25
1.50
BHP
RPM
BHP
RPM
BHP
RPM
0.29
0.37
0.44
0.60
0.82
1.08
1.42
0.36
0.44
0.55
0.68
0.84
1.03
1.37
2.09
0.30
0.38
0.52
0.64
0.98
1.44
2.05
2.84
0.72
0.93
1.20
1.54
1.96
2.34
2.91
3.84
0.48
0.59
0.66
1.00
1.49
2.14
3.00
0.70
0.91
1.19
1.55
2.00
2.53
3.18
4.16
0.73
0.88
0.96
1.24
1.57
1.97
2.44
2.98
0.75
0.88
1.23
1.72
2.36
3.18
4.21
0.74
0.94
1.23
1.60
2.08
2.66
3.37
4.22
-
1170
1206
1237
1310
1397
1495
1601
1112
1131
1161
1199
1244
1295
1380
1532
1093
1121
1173
1218
1325
1449
1585
1731
837
855
885
1731
970
1008
1062
1140
1148
1184
1208
1316
1444
1589
1743
859
887
925
972
1025
1083
1145
1227
1259
1309
1332
1407
1488
1573
1663
1756
944
966
1025
1101
1188
1284
1385
754
774
807
850
899
955
1014
1077
-
0.37
0.46
0.54
0.72
0.94
1.23
0.54
0.66
0.80
0.96
1.16
1.52
2.26
0.38
0.47
0.62
0.76
1.12
1.61
2.25
1.12
1.41
1.77
2.21
2.60
3.20
4.16
0.59
0.71
0.78
1.15
1.66
2.34
0.85
1.09
1.39
1.76
2.23
2.79
3.45
4.46
0.85
1.03
1.11
1.40
1.75
2.17
2.66
0.94
1.08
1.45
1.95
2.61
3.46
4.51
1.16
1.45
1.84
2.34
2.94
3.67
4.54
-
1296
1327
1354
1419
1499
1589
1250
1273
1304
1343
1388
1465
1606
1212
1236
1282
1323
1422
1537
1666
942
965
997
1038
1072
1122
1194
1262
1293
1313
1410
1529
1664
952
972
1004
1044
1092
1146
1204
1281
1366
1411
1433
1502
1577
1658
1743
1042
1058
1108
1176
1255
1345
1441
851
877
914
958
1008
1064
1123
-
0.45
0.55
0.64
0.83
1.08
1.38
0.65
0.77
0.92
1.09
1.30
1.67
2.44
0.47
0.56
0.74
0.89
1.27
1.79
2.46
1.33
1.63
2.01
2.47
2.88
3.49
4.48
0.70
0.83
0.91
1.30
1.84
2.54
1.27
1.59
1.98
2.47
3.04
3.73
4.76
0.99
1.17
1.26
1.57
1.94
2.37
2.88
1.14
1.28
1.67
2.19
2.88
3.75
4.82
1.38
1.69
2.10
2.60
3.23
3.98
4.87
-
1411
1438
1462
1522
1595
1680
1361
1377
1403
1437
1477
1547
1679
1320
1342
1384
1422
1513
1621
1744
1025
1042
1068
1104
1135
1180
1247
1369
1395
1412
1500
1610
1737
1052
1078
1114
1157
1206
1260
1333
1465
1507
1527
1592
1663
1739
1820
1134
1146
1188
1248
1320
1404
1495
925
944
975
1014
1061
1112
1168
-
2.00
BHP
RPM
0.63
0.75
0.84
1.07
1.35
1.00
1.17
1.36
1.59
1.98
2.80
0.60
0.77
0.97
1.15
1.58
2.15
1.35
2.51
3.01
3.45
4.10
0.94
1.09
1.18
1.62
2.20
2.95
1.67
2.02
2.45
2.96
3.58
4.30
1.26
1.47
1.57
1.91
2.31
2.78
1.58
1.74
2.15
2.71
3.43
4.35
2.21
2.64
3.18
3.84
4.62
-
1617
1638
1658
1709
1773
1572
1589
1613
1645
1703
1818
1514
1532
1568
1600
1681
1778
1638
1202
1229
1254
1291
1563
1582
1596
1667
1762
1877
1201
1218
1245
1280
1322
1369
1646
1682
1700
1758
1822
1892
1303
1309
1337
1384
1455
1518
1071
1093
1123
1161
1206
-
2.50
BHP
RPM
0.81
0.95
1.06
1.32
1.44
1.65
1.89
2.31
0.86
0.99
1.22
1.42
1.90
2.52
3.04
3.58
4.04
4.74
1.21
1.37
1.47
1.95
2.57
2.47
2.94
3.49
4.14
4.90
1.54
1.77
1.88
2.26
2.69
2.07
2.23
2.67
3.27
4.03
4.98
3.23
3.80
4.48
-
1800
1818
1832
1879
1760
1777
1802
1850
1686
1702
1733
1762
1834
1923
1328
1347
1367
1398
1738
1752
1763
1823
1906
1348
1368
1396
1431
1472
1808
1842
1857
1910
1969
1458
1458
1475
1511
1563
1628
1202
1226
1258
-
BHP
1.01
1.17
1.30
1.72
1.94
2.20
2.65
1.07
1.22
1.48
1.70
2.23
2.90
3.60
4.17
4.67
1.48
1.66
1.78
2.29
2.96
2.96
3.45
4.03
4.72
1.84
2.09
2.21
2.62
2.60
2.78
3.24
3.86
3.86
4.46
-
3.00
RPM
1968
1982
1996
1920
1931
1950
1990
1840
1856
1884
1910
1976
2057
1446
1459
1474
1899
1909
1917
1967
2041
1469
1483
1505
1535
1958
1988
2003
2051
1600
1595
1604
1632
1307
1324
-
j Total static pressure should include external static pressure and accessory / option static pressure from Table 34.1. Unit internal resistance has been included in the
unit performance tables.
k Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.
5-572.10
35
BLOWER PERFORMANCE DATA
Table 36.1 - Unit Performance Tables jk
Air
Digit
Temp.
Unit Size 16
Rise
250/300 E,F 100°F / 120°F
83°F / 100°F
Start 300
74°F / 89°F
62°F / 74°F
53°F / 63°F
46°F / 56°F
41°F / 49°F
37°F / 44°F
34°F / 40°F
250/300 G,H 100°F / 120°F
83°F / 100°F
Start 300
74°F / 89°F
62°F / 74°F
53°F / 63°F
46°F / 56°F
41°F / 49°F
37°F / 44°F
34°F / 40°F
31°F / 37°F
28°F / 34°F
250/300 I, J, K 46°F / 56°F
37°F / 44°F
31°F / 37°F
End 250
350/400
E,F
Start 400
350/400 G,H
Start 400
26°F / 32°F
23°F / 28°F
20°F / 24°F
- / 22°F
- / 20°F
100°F / 96°F / 87°F / 100°F
74°F / 85°F
65°F / 74°F
58°F / 66°F
52°F / 59°F
47°F / 54°F
100°F / 87°F / 100°F
74°F / 85°F
65°F / 74°F
58°F / 66°F
52°F / 59°F
47°F / 54°F
43°F / 49°F
40°F / 46°F
100°F / 350/400 I,J,K
Start 400
87°F / 100°F
65°F / 74°F
52°F / 59°F
43°F / 49°F
37°F / 42°F
32°F
29°F
26°F
24°F
23°F
/
/
/
/
/
37°F
33°F
30°F
27°F
26°F
CFM
1852 M
2222
2500
3000
3500
4000
4500
5000
5500
1852
2222
2500
3000
3500
4000
4500
5000
5500
6000
6500
4000
5000
6000
7000
8000
9259
10000
11111
2593
2700
2963
3500
4000
4500
5000
5500
2593
2963
3500
4000
4500
5000
5500
6000
6500
2593
2963
4000
5000
6000
7000
8000
9000
10000
11000
11500
0.25
BHP RPM
0.26
0.39
0.51
0.80
1.19
1.69
2.34
3.14
4.11
0.28
0.35
0.53
0.76
1.07
1.45
1.92
2.50
3.16
3.96
1.94
2.93
4.24
6.40
7.97
10.79
0.61
0.67
0.85
1.30
1.86
2.57
3.44
4.50
0.43
0.57
0.85
1.19
1.61
2.22
2.77
3.53
4.42
1.37
2.20
3.34
4.84
6.75
9.13
12.01
13.66
532
582
625
706
793
882
974
1067
1161
424
447
492
542
594
649
706
767
822
881
559
632
707
804
862
949
668
686
730
826
918
1012
1109
1206
479
516
574
631
690
767
813
876
939
515
588
665
744
824
906
988
12.09
0.50
BHP RPM
0.39
0.54
0.68
0.99
1.41
1.94
2.62
3.44
4.44
0.34
0.43
0.52
0.72
0.98
1.31
1.72
2.22
2.81
3.52
4.34
0.97
1.51
2.29
3.33
4.69
6.91
8.52
11.40
0.80
0.87
1.06
1.54
2.13
2.87
3.78
4.87
0.62
0.79
1.09
1.45
1.91
2.46
3.12
3.91
4.82
1.07
1.69
2.58
3.77
5.33
7.29
9.72
12.66
14.34
665
703
736
803
878
958
1043
1130
1219
519
537
553
588
878
673
721
771
824
878
934
507
560
620
686
755
846
901
985
781
796
834
917
1000
1087
1177
1269
585
614
662
710
762
817
874
933
992
533
590
654
723
796
871
948
1027
1067
0.75
BHP RPM
0.54
0.70
0.85
1.19
1.64
2.20
2.90
3.76
4.78
0.49
0.61
0.71
0.93
1.21
1.57
2.00
2.52
3.14
3.87
4.72
1.25
1.84
2.66
3.75
5.16
7.45
9.09
12.03
1.01
1.08
1.28
1.80
2.42
3.18
4.12
0.84
1.02
1.35
1.74
2.22
2.80
3.49
4.30
0.77
0.89
1.37
2.04
2.97
4.22
5.83
7.85
10.33
13.32
-
782
810
836
893
959
1032
1109
1191
1275
623
634
646
674
707
746
789
834
882
933
984
583
626
679
738
802
887
939
1020
882
895
928
1002
1078
1158
1242
679
702
742
784
830
880
933
987
561
571
609
658
715
778
845
917
990
1065
-
.
Total Static Pressure, ''W.C.
1.00
1.25
1.50
BHP RPM BHP RPM
BHP RPM
0.69
0.87
1.04
1.40
1.87
2.46
3.19
4.08
0.66
0.79
0.90
1.15
1.45
1.83
2.29
2.84
3.49
4.24
1.56
2.19
3.06
4.19
5.64
7.99
9.67
12.66
1.22
1.30
1.52
2.07
2.71
3.51
4.47
1.09
1.28
1.63
2.04
2.55
3.15
3.87
4.70
1.04
1.18
1.69
2.41
3.39
4.68
6.34
8.41
10.95
14.00
-
887
909
930
978
1036
1102
1174
1250
713
721
730
752
780
814
852
894
938
984
654
688
734
788
847
927
977
1054
975
986
1015
1081
1151
1226
1305
764
782
815
853
895
940
989
1040
639
646
679
721
772
830
893
960
1030
1103
-
0.85
1.05
1.23
1.62
2.12
2.73
3.49
4.40
0.85
0.99
1.11
1.38
1.71
2.11
2.59
3.16
3.83
4.61
1.89
2.56
3.46
4.64
6.14
8.55
10.27
13.31
1.45
1.53
1.76
2.34
3.01
3.84
4.84
1.35
1.56
1.93
2.36
2.89
3.52
4.25
1.34
1.49
2.03
2.79
3.82
5.16
6.87
8.99
11.58
14.68
-
985
1000
1016
1058
1109
1170
1236
1308
795
800
806
824
848
878
912
950
991
1035
719
748
787
836
891
966
1014
1087
1061
1071
1097
1157
1221
1291
1366
841
856
885
918
956
998
1042
709
715
742
779
826
879
938
1002
1069
1139
-
1.03
1.24
1.43
1.84
2.36
3.01
3.79
4.73
1.05
1.20
1.33
1.62
1.97
2.39
2.90
3.50
4.19
5.00
2.24
2.95
3.89
5.11
6.65
9.12
10.87
13.97
1.69
1.78
2.02
2.62
3.32
4.18
1.64
1.86
2.25
2.70
3.25
3.90
4.66
1.66
1.81
2.40
3.19
4.26
5.65
7.41
9.58
12.22
-
1074
1085
1099
1133
1179
1234
1296
1364
870
872
877
892
912
939
969
1004
1042
1084
781
804
838
882
933
1004
1050
1121
1142
1151
1174
1228
1288
1353
1142
926
951
980
1014
1053
1095
774
779
802
835
877
927
982
1043
1107
-
BHP
1.39
1.64
1.85
2.31
2.88
3.58
4.41
1.47
1.65
1.81
2.13
2.52
2.99
3.54
4.18
4.93
3.77
4.79
6.09
7.72
10.30
12.12
2.19
2.29
2.56
3.22
3.97
4.88
2.26
2.50
2.93
3.41
4.00
4.70
2.36
2.54
3.18
4.05
5.20
6.68
8.53
10.80
13.54
-
2.00
RPM
1239
1242
1250
1275
1312
1358
1412
1005
1005
1006
1016
1031
1052
1077
1107
1140
908
935
971
1015
1079
1120
1290
1297
1316
1362
1414
1472
1046
1053
1072
1096
1124
1157
891
894
910
937
973
1016
1066
1121
1180
-
2.50
BHP
RPM
1.79
2.06
2.30
2.81
3.42
4.17
1.94
2.14
2.32
2.68
3.11
3.62
4.22
4.90
4.67
5.75
7.13
8.83
11.52
13.41
2.73
2.84
3.13
3.84
4.65
2.94
3.20
3.66
4.19
4.81
3.14
3.34
4.04
4.98
6.21
7.77
9.70
12.07
14.90
-
1387
1385
1389
1406
1435
1474
1126
1123
1123
1129
1140
1156
1177
1202
1005
1025
1055
1093
1150
1187
1425
1431
1446
1486
1531
1165
1170
1183
1202
1226
995
997
1009
1030
1061
1099
1144
1194
1249
-
BHP
2.21
2.52
2.78
3.33
3.99
4.78
2.44
2.67
2.87
3.27
3.74
4.28
4.92
6.77
8.22
10.00
12.79
14.74
3.30
3.42
3.74
4.50
3.68
3.96
4.45
4.00
4.20
4.96
5.96
7.26
8.90
10.92
13.37
-
3.00
RPM
1523
1517
1517
1529
1552
1584
1237
1231
1230
1232
1240
1253
1270
1110
1134
1167
1218
1252
1550
1555
1568
1602
1275
1277
1287
1090
1091
1099
1117
1144
1178
1219
1265
-
j Total static pressure should include external static pressure and accessory / option static pressure from Table 34.1. Unit internal resistance has been included in the
unit performance tables.
k Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.
36
5-572.10
BLOWER PERFORMANCE DATA
Table 37.1 - Unit Performance Tables jk
Unit
Size
500/600
Digit 16
G or H
Start 600
500/600
Start 600
I, J, K
End 500
500/600
L
Start 500
700/800
G or H
Start 800
700/800
I, J, K
Start 800
700/800
L
End 700
840/960
I, J, K
End 840
840/960
End 840
L
Air
Temp
Rise
120°F / 106°F / 100°F / 120°F
93°F / 111°F
82°F / 99°F
74°F / 89°F
67°F / 81°F
62°F / 74°F
57°F / 68°F
120°F / 100°F / 120°F
93°F / 111°F
74°F / 89°F
62°F / 74°F
53°F / 63°F
46°F / 56°F
41°F / 49°F
- / 44°F
- / 43°F
- / 40°F
- / 40°F
62°F / 74°F
53°F / 63°F
46°F / 56°F
41°F / 49°F
- / 44°F
- / 43°F
- / 40°F
- / 40°F
120°F / 115°F / 105°F / 120°F
104°F / 119°F
94°F / 108°F
86°F / 99°F
80°F / 91°F
120°F / 104°F / 119°F
86°F / 99°F
65°F / 74°F
58°F / 66°F
52°F / 59°F
47°F / 54°F
43°F / 49°F
40°F / 46°F
65°F / 74°F
58°F / 66°F
52°F / 59°F
47°F / 54°F
47°F / 54°F
43°F / 49°F
40°F / 46°F
- / 42°F
- / 41°F
120°F / 111°F / 105°F / 120°F
97°F / 111°F
86°F / 99°F
78°F / 89°F
70°F / 80°F
65°F / 74°F
62°F / 71°F
60°F / 68°F
86°F / 99°F
78°F / 89°F
70°F / 80°F
65°F / 74°F
60°F / 68°F
- / 63°F
Total Static Pressure Inches "W.C.
0.25
0.50
0.75
1.00
1.25
1.50
2.00
2.50
3.00
CFM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM
3086
3500
3704
4000
4500
5000
5500
6000
6500
3086
3704
4000
5000
6000
7000
8000
9000
10000
10400
11000
11111
6000
7000
8000
9000
10000
10400
11000
11111
4321
4500
4938
5000
5500
6000
6500
4321
5000
6000
8000
9000
10000
11000
12000
13000
8000
9000
10000
11000
11050
12000
13000
14000
14500
6481
7000
7407
8000
9000
10000
11050
12000
12500
13000
9000
10000
11050
12000
13000
14000
0.62
0.84
0.97
1.18
1.61
2.13
2.77
3.53
4.41
0.46
0.69
0.82
1.43
2.31
3.51
5.09
7.11
9.62
10.77
12.66
13.04
1.69
2.57
3.73
5.21
7.04
7.88
9.27
9.54
1.51
1.68
2.15
2.23
2.89
3.68
4.61
0.87
1.26
2.02
4.44
6.19
8.36
11.00
14.16
17.88
3.26
4.54
6.13
8.06
8.17
10.37
13.09
16.26
18.02
2.72
3.36
3.93
4.87
6.80
9.20
12.28
15.60
17.58
19.71
5.01
6.78
9.04
11.48
14.50
18.02
529
575
598
633
693
755
818
882
946
401
443
464
542
624
709
797
885
975
1011
1065
1075
512
580
650
721
793
823
866
874
685
708
763
770
834
900
965
443
488
558
707
784
861
940
1019
1098
566
626
687
749
752
811
873
936
968
630
672
705
754
837
921
1010
1091
1134
1177
675
742
812
876
945
1013
0.82
1.06
1.20
1.43
1.88
2.43
3.10
3.89
4.80
0.69
0.95
1.09
1.75
2.68
3.94
5.57
7.65
10.21
11.38
13.31
13.69
1.97
2.89
4.09
5.60
7.48
8.34
9.75
10.03
1.80
1.98
2.48
2.55
3.25
4.06
1.14
1.55
2.36
4.89
6.69
8.91
11.60
14.81
18.59
3.60
4.92
6.54
8.52
8.62
10.86
13.63
16.83
18.61
3.09
3.76
4.35
5.33
7.31
9.76
12.89
16.27
18.27
5.40
7.21
9.51
12.00
15.05
18.61
620
658
678
709
762
818
876
936
996
496
527
544
609
682
760
842
926
1012
1046
1099
1109
565
626
691
758
827
855
897
905
760
780
89
836
895
956
421
558
619
755
827
901
976
1052
1129
611
667
724
782
785
842
902
963
994
685
723
754
799
878
958
1044
1123
1164
715
778
845
907
973
1039
1.03
1.30
1.45
1.69
2.17
2.75
3.44
4.25
0.95
1.23
1.39
2.09
3.07
4.38
6.07
8.20
10.81
12.01
13.97
14.36
2.26
3.22
4.46
6.01
7.93
8.80
10.24
10.52
2.11
2.30
2.82
2.90
3.62
4.46
1.42
1.87
2.73
5.35
7.20
9.47
12.22
15.48
19.30
3.95
5.30
6.97
8.98
9.09
11.37
14.17
17.41
19.21
3.48
4.17
4.79
5.90
7.83
10.33
13.52
16.95
18.97
5.80
7.64
9.99
12.51
15.62
19.21
703
736
753
779
827
878
932
988
580
604
618
673
738
809
886
965
1048
1081
1132
1141
615
671
731
795
860
887
927
935
830
847
893
899
953
1010
591
623
677
801
869
939
1011
1085
1159
654
706
760
815
818
872
930
989
1019
736
772
800
843
918
995
1078
1154
1194
753
812
877
937
1000
1065
1.26
1.54
1.70
1.96
2.46
3.07
3.79
4.63
1.23
1.54
1.71
2.46
3.48
4.84
6.58
8.76
11.43
12.64
14.64
15.03
2.57
3.56
4.84
6.43
8.39
9.28
10.74
11.02
2.43
2.63
3.17
3.26
4.00
4.87
1.72
2.20
3.10
5.82
7.72
10.04
12.84
16.15
4.31
5.70
7.40
9.45
9.56
11.88
14.72
18.00
19.82
3.88
4.60
5.23
6.27
8.36
10.91
14.16
17.63
19.69
6.21
8.09
10.48
13.04
16.18
19.82
779
807
822
846
889
936
986
1038
657
675
686
733
791
857
928
1001
1083
1115
1164
1174
664
714
770
830
892
918
957
964
896
912
953
959
1009
1062
657
683
731
845
909
976
1045
1117
696
744
794
847
850
902
958
1015
1045
785
818
845
885
956
1030
1110
1184
1224
789
846
908
966
1028
1091
1.50
1.80
1.97
2.24
2.77
3.40
4.15
2.05
2.84
3.91
5.31
7.10
9.33
12.05
13.29
15.32
15.72
2.89
3.92
5.23
6.86
8.85
9.76
11.24
11.53
2.77
2.98
3.54
3.63
4.40
2.04
2.54
3.49
6.30
8.25
10.62
13.47
16.83
4.67
6.10
7.85
9.93
10.04
12.40
15.27
18.59
4.30
5.04
5.69
6.76
8.90
11.50
14.80
18.32
6.62
8.54
10.97
13.57
16.75
-
849
874
887
908
948
991
1038
749
790
842
903
970
1042
1118
1149
1197
1205
710
756
808
864
924
949
986
993
958
973
1011
1016
1063
717
740
782
888
949
1012
1079
1148
736
780
828
879
881
931
986
1041
832
863
888
926
994
1065
1142
1214
825
879
939
994
1054
-
1.75
2.07
2.25
2.53
3.09
3.74
4.51
2.42
3.24
4.35
5.80
7.64
9.92
12.69
13.95
16.01
16.41
3.23
4.29
5.64
7.30
9.33
10.25
11.76
12.05
3.13
3.34
3.93
4.02
4.81
2.37
2.90
3.89
6.79
8.79
11.21
14.11
17.52
5.05
6.52
8.30
10.42
10.53
12.92
15.83
19.19
4.72
5.49
6.16
7.26
9.44
12.10
15.45
19.02
7.05
9.00
11.47
14.11
17.33
-
916
937
949
968
1001
1044
1088
810
844
891
947
1010
1079
1152
1182
1228
1237
755
797
845
898
955
979
1015
1022
1018
1032
1066
1072
1116
774
794
832
930
987
1048
1112
1179
774
816
861
910
912
960
1013
1066
876
905
929
965
1030
1099
1173
1243
859
911
968
1022
1081
-
2.28
2.63
2.83
3.14
3.74
4.44
4.09
5.29
6.82
8.75
11.13
14.00
15.30
17.42
17.83
5.06
6.47
8.21
10.31
11.26
12.81
13.12
3.88
4.11
4.74
4.83
3.08
3.66
4.73
7.81
9.90
12.42
15.41
18.92
5.84
7.37
9.22
11.41
11.53
13.99
16.98
5.60
6.42
7.13
8.28
10.56
13.32
16.77
7.91
9.95
12.50
15.20
18.50
-
1038
1054
1064
1080
1110
1145
946
984
1032
1089
1151
1218
1247
1290
1298
874
916
964
1016
1038
1071
1078
1131
1142
1172
1176
879
894
924
1009
1061
1117
1176
1239
848
885
925
969
972
1016
1065
960
986
1007
1040
1100
1164
1234
925
973
1026
1076
1132
-
2.84
3.23
3.44
3.78
4.43
5.01
6.28
7.90
9.92
12.38
15.35
7.35
9.16
11.33
12.31
13.90
14.21
4.69
4.94
3.84
4.47
5.62
8.87
11.04
13.66
16.74
6.66
8.25
10.17
12.43
12.56
15.08
18.14
6.52
7.38
8.13
9.33
11.71
14.56
8.81
10.91
13.54
16.32
19.70
-
1149
1162
1170
1183
1208
1041
1072
1113
1163
1220
1283
984
1027
1074
1095
1126
1132
1236
1245
974
985
1010
1085
1131
1183
1238
918
950
987
1027
1029
1070
1116
1038
1061
1081
1111
1166
1226
988
1032
1081
1129
1181
-
3.44
3.86
4.09
4.45
7.33
9.03
11.13
13.69
10.14
12.38
13.38
4.65
5.33
6.55
9.96
12.23
14.93
7.51
9.17
11.15
13.48
13.61
16.20
19.33
7.48
8.39
9.17
10.43
12.90
9.73
11.91
14.61
17.46
-
1252
1262
1268
1279
1155
1191
1235
1287
1088
1131
1150
1063
1071
1091
1156
1199
1246
984
1012
1046
1083
1084
1123
1166
1112
1133
1151
1179
1230
1048
1088
1135
1179
-
j Total static pressure should include external static pressure and accessory / option static pressure from Table 34.1. Unit internal resistance has been included in the
unit performance tables.
k Brake Horsepower and RPM values are approximate values only. Please consult the AccuSpec selection software for values at other than listed CFM / static pressures.
5-572.10
37
BLOWER SHEAVE ASSEMBLY DATA
Adjusting the Blower Drive Sheave Setting
All units include a sheave assembly indicated by Digit 19 of
the model nomenclature. Within that assembly are the fixed
blower sheave, adjustable motor sheave, and belt(s) to provide
a method of adjusting the blower speed to balance the airflow
based on actual external static pressure for the installation.
The motor sheave is adjusted at the factory for external
static conditions indicated on the order detail, however actual
external static often varies from design, resulting in a need to
adjust the equipment to provide correct design airflow.
To determine how many turns open the motor sheave should
be set for:
1.
2.
3.
4.
Locate the unit Model Identification Plate and identify the
following model number digits:
a. Digits 4-6 = Model Size
b. Digit 16 = Blower Size
c. Digit 19 = Sheave Arrangement
Use Table 34.1 to determine the individual static pressure
drops for any features included on the unit for the design
airflow. Add those and the design external static pressure
to calculate the total static pressure.
Use Tables 35.1 through 37.1 to determine the blower
speed (RPM) required to meet the job requirements.
Use Table 39.1 to determine the RPM range and
approximately blower speeds for each 1/2 turn open of the
adjustable motor sheave. Find the RPM that is closest
to one value shown to determine the turns open and set
the motor sheave as described in the section "Blower
Adjustments" on page 19.
Example:
Determine motor sheave turns open for a unit operating at
4000 CFM with a design external static pressure (ESP) of
0.60"W.C. as follows:
1.
2.
3.
4.
From the Model Nomenclature:
a. Model size (Model Digit 4-6) = 400
b. Blower size (Model Digit 16) = E
c. Sheave arrangement (Model Digit 19) = J
From Table 34.1, the unit includes 2" Farr 30/30
Filters (0.08"W.C. static) and Rainhood & Birdscreen
(0.07"W.C. static). Total static pressure is
0.08+0.07+0.60=0.75"W.C.
From Table 36.1, the blower speed is 1078 RPM.
From Table 39.1, the blower range is 1029-1332 RPM.
The closest value to 1078 RPM in the row of Blower
RPM by Sheave Turns Open is 1090 RPM, which
corresponds to 4.0 turns open.
If actual job ESP after installation was measured at
0.75"W.C., the process above would be repeated with the
new TSP of 0.90"W.C.
Figure 38.1 - Blower Section
EXTENDED GREASE
LINE ZERK FITTINGS
(OPTION)
ADJUSTABLE
MOTOR SHEAVE
ON MOTOR
EXTENDED
GREASE LINES
(OPTION)
1/4" PERIMETER
GASKETED BLOWER
CONNECTION
FILTER RACK
BOTTOM SUPPORTED
BLOWER AND MOTOR
DIRECT DRIVE
DAMPER ACTUATOR
CONVENIENCE
OUTLET (OPTION)
BLOWER DOOR
SAFETY SWITCH
(OPTION)
38
5-572.10
BLOWER SHEAVE ASSEMBLY DATA
Table 39.1 - Sheave Assembly Data
Blower Type
Digit 16
A or B
(9-7 Blower)
C or D
(9-9 Blower)
Sheave
Digit 19
A, B
C, D, E
F, G
H, I
J, K
A, B
C, D, E
F, G, H
I, J, K
L,M,N
A, B
C, D, E
E or F
(12-12 Blower)
F, G, H
I, J, K, Q
L,M,N
O, P
A, B, C
G or H
(15-15 Blower)
D, E, F
G, H, I
J, K, L, O
M, N
A, B, C
I or J
(18-18 Blower with
Under 15 HP Motor)
K
(18-18 Blower with
15 HP Motor & Up)
D, E, F, G
H, I, J
K, L, M, N
O, P, Q, R
S, T, U
A, B, G, H
C, D, I, J
E, F, K, L
M, N
A, B
C, D, E
L
(20-18 Blower)
F, G, H, I, J, K
L, M, N, O, P, Q
R, S, T, U, V
W, X, Y, Z
Blower RPM by Sheave Turns Open Setting (Approx.)
RPM Range
656-1001
978-1265
1150-1561
1526-1858
1763-2147
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
1001
1265
1561
1858
2147
967
1236
1520
1825
2109
932
1208
1479
1792
2070
898
1179
1438
1758
2032
863
1150
1397
1725
1993
829
1122
1356
1692
1955
794
1093
1314
1659
1917
760
1064
1273
1626
1878
725
1035
1232
1592
1840
691
1007
1191
1559
1801
656
978
1150
1526
1763
656-1001
978-1265
1150-1561
1526-1858
1763-2147
1001
1265
1561
1858
2147
967
1236
1520
1825
2109
932
1208
1479
1792
2070
898
1179
1438
1758
2032
863
1150
1397
1725
1993
829
1122
1356
1692
1955
794
1093
1314
1659
1917
760
1064
1273
1626
1878
725
1035
1232
1592
1840
691
1007
1191
1559
1801
656
978
1150
1526
1763
468-715
644-874
863-1078
1029-1332
1150-1438
1327-1659
715
874
1078
1332
1438
1659
690
851
1057
1302
1409
1626
666
828
1035
1271
1380
1593
641
805
1014
1241
1352
1559
616
782
992
1211
1323
1526
592
759
971
1181
1294
1493
567
736
949
1150
1265
1460
542
713
928
1120
1236
1427
517
690
906
1090
1208
1393
493
667
885
1059
1179
1360
468
644
863
1029
1150
1327
410-625
568-771
767-958
934-1136
1136-1380
625
771
958
1136
1380
604
751
939
1116
1356
582
730
920
1096
1331
561
710
901
1075
1307
539
690
882
1055
1282
518
670
863
1035
1258
496
649
843
1015
1234
475
629
824
995
1209
453
609
805
974
1185
432
588
786
954
1160
410
568
767
934
1136
491-649
586-744
682-821
821-1009
995-1161
1101-1285
649
744
821
1009
1161
1285
633
728
807
990
1144
1267
617
712
793
971
1128
1248
602
697
779
953
1111
1230
586
681
765
934
1095
1211
570
665
752
915
1078
1193
554
649
738
896
1061
1175
538
633
724
877
1045
1156
523
618
710
859
1028
1138
507
602
696
840
1012
1119
491
586
682
821
995
1101
826-1009
995-1161
1101-1285
1232-1438
1009
1161
1285
1438
991
1144
1267
1417
972
1128
1248
1397
954
1111
1230
1376
936
1095
1211
1356
918
1078
1193
1335
899
1061
1175
1314
881
1045
1156
1294
863
1028
1138
1273
844
1012
1119
1253
826
995
1101
1232
491-649
626-765
765-901
901-1059
995-1161
1101-1285
649
765
901
1059
1161
1285
633
751
887
1043
1144
1267
617
737
874
1027
1128
1248
602
723
860
1012
1111
1230
586
709
847
996
1095
1211
570
696
833
980
1078
1193
554
682
819
964
1061
1175
538
668
806
948
1045
1156
523
654
792
933
1028
1138
507
640
779
917
1012
1119
491
626
765
901
995
1101
5-572.10
39
DIMENSIONS - UNIT
Figure 40.1 - Outdoor STANDARD Blower Package Unit (Model Digit 2=B, Digit 16=A through H)
500 - 800 Model Shown
Y
33.50
33.50
48.00
Qty (4) Drill Locator
Dimples for Field
Drilled Electrical
Conduit Entry Holes
(spaced 2.0" apart)
2.32
Optional Rainhood
& Birdscreen
P (OVER ROOF)
34.25
E (Height)
X
F (Width)
(Inside)
3.97
24.00
(Inside)
24.00
(Inside)
K (INSIDE)
N
A
9.00
9.21
1
2
1
4.5
14.55
3
24.00
4.35
(Inside)
Optional Return Air
Duct Connection
2
24.94
Fresh Air
Duct Connection
4
1
9.21
2
1.50
5.29
6.28
6.28
1.50
3.00
5.29
S
Figure 40.2 - Outdoor STANDARD Blower Downturn Package Unit (Model Digit 2=D, Digit 16=A through H)
500 - 800 Model Shown
Z
29.32
33.50
33.50
48.00
Qty (4) Drill Locator
Dimples for Field
Drilled Electrical
Conduit Entry Holes
(spaced 2.0" apart)
2.32
Optional Rainhood
& Birdscreen
3.97
24.53
24.00
(Inside)
A
9.21
4.27
P Over Roof
24.00
(Inside)
Downturn
1
Duct Connection
2
24.94
1
24.00
(Inside)
Optional Return Air
Duct Connection
2
T
24.00
(Inside) N
K Inside
4.5
Fresh Air
Duct Connection 14.55
3
4.35
4
1
9.21
2
1.50
1.50
5.29
5.29
6.28
6.28
Table 40.1 - Outdoor STANDARD Blower Unit (Model Digit 2=B or D, Digit 16=A through H)
Dimensions (inches)
Model Blower Type Furnace
Size
(Digit 16)
Qty
A
E
F
K
N
P
S
T
Y
Z
75
All
100/125
All
150/175
All
200/225
All
250/300 E, F, G, or H
350/400 E, F, G, or H
500/600
G or H
700/800
G or H
j
k
l
m
40
1
1
1
1
1
1
2
2
33.75
33.75
33.75
37.75
37.75
37.75
37.75
37.75
18.98
18.98
18.98
22.98
22.98
22.98
22.98
22.98
15.18
17.69
21.94
24.06
27.09
38.60
27.09
38.60
20.02
20.02
23.99
23.99
29.96
41.90
29.96
41.90
39.23
39.23
39.23
43.23
43.23
43.23
43.23
43.23
32.06
34.56
38.82
40.94
44.05
55.57
44.05
55.57
84.41 108.39
84.41 108.39
84.41 108.39
84.41 108.39
84.41 108.39
84.41 108.39
117.53 146.77
117.53 146.77
81.49
81.49
81.49
81.49
81.49
81.49
114.94
114.94
110.82
110.82
110.82
110.82
110.82
110.82
144.12
144.12
Gas
Conn.
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
5-572.10
3.00
DIMENSIONS - UNIT
Figure 41.1 - Outdoor EXTENDED Blower Package Unit (Model Digit 2=B, Digit 16=I, J, K, or L)
500 - 800 Model Shown
Y
47.27
E
36.58
BLOWER CABINET
ROOF EXTENSION
(”L” BLOWERS ONLY)
6.56
34.00
P (OVER ROOF)
OPTIONAL RAINHOOD
& BIRDSCREEN
2.32
3.97
34.00
22.98 (HEIGHT)
X
F (WIDTH)
(INSIDE)
37.85
24.00
(INSIDE)
9.00
4.5
FRESH AIR
14.55
DUCT CONNECTION
9.21
4.29
2
24.94
1
1
QTY (4) DRILL LOCATOR DIMPLES
FOR FIELD DRILLED ELECTRICAL
CONDUIT ENTRY HOLES
(SPACED 2.0" APART)
2
S
24.00
(INSIDE)
43.23
K (INSIDE)
4
1
9.21
3
24.00
(INSIDE)
3.00
2
4.35
1.50
5.29
6.28
1.50
5.29
6.28
OPTIONAL RETURN AIR
DUCT CONNECTION
Figure 41.2 - Outdoor EXTENDED Blower Downturn Package Unit (Model Digit 2=D, Digit 16=I, J, K, or L)
500 - 800 Model Shown
Z
29.32
47.27
E
36.58
BLOWER CABINET
ROOF EXTENSION
(”L” BLOWERS ONLY)
6.56
34.00
24.53
P (OVER ROOF)
2.32
OPTIONAL RAINHOOD
& BIRDSCREEN
3.97
34.00
37.85
24.00
(INSIDE)
24.00
(INSIDE)
K (INSIDE)
43.23
4.5
9.21
24.00
(INSIDE)
4.27
DOWNTURN
DUCT
CONNECTION
QTY (4) DRILL LOCATOR DIMPLES
24.00
FOR FIELD DRILLED ELECTRICAL
(INSIDE)
CONDUIT ENTRY HOLES
OPTIONAL RETURN AIR
(SPACED 2.0" APART)
DUCT CONNECTION
2
24.94
1
1
2
14.55
FRESH AIR
DUCT CONNECTION
3
4.35
4
1
2
1.50
5.29
6.28
9.21
3.00
1.50
5.29
6.28
T
Table 41.1 - Outdoor EXTENDED Blower Unit (Model Digit 2=B or D, Digit 16=I, J, K, or L)
Model
Size
Dimensions (inches)
Blower Type Furnace
Gas
(Digit 16)
Qty
E
F
K
P
S
T
Y
Z Conn.
250/300
I, J, or K
1
33.50 27.09
29.96 44.05 120.00 141.34 117.34 141.34 3/4
350/400
I, J, or K
1
33.50 38.60
41.90 55.57 120.00 141.34 117.34 141.34 3/4
500/600
I, J, K, or L
2
67.00 27.09
29.96 44.05 153.12 182.36 150.74 180.00 3/4
700/800
I, J, K, or L
2
67.00 38.60
41.90 55.57 153.12 182.36 150.74 180.00 3/4
840/960
I, J, K, or L
3
100.50 38.60
41.90 55.57 186.52 215.77 184.14 213.40 3/4
j
k
l
m
For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
5-572.10
41
DIMENSIONS - UNIT
Figure 42.1 - Outdoor STANDARD Blower Cooling Package Unit (Model Digit 2=C, Digit 16=A through H)
105.49
48.00
33.50
24.00
QTY (4) DRILL LOCATOR DIMPLES
FOR FIELD DRILLED ELECTRICAL
CONDUIT ENTRY HOLES
(SPACED 2.0" APART)
OPTIONAL RAINHOOD
& BIRDSCREEN
P (OVER ROOF)
2.20
34.25
3.97
19.23
J (HEIGHT)
X
H (WIDTH)
(INSIDE)
G
24.00
(INSIDE)
A
2
7.65
2
4.5
FRESH AIR
DUCT CONNECTION 14.55
9.21
24.00
4.35
(INSIDE)
OPTIONAL RETURN AIR
DUCT CONNECTION
24.94
108.39
24.00
(INSIDE) N
K (INSIDE)
3
4
1
9.21
2
1.50
1.50
3.00
5.29
5.29
6.28
6.28
Figure 42.2 - Outdoor STANDARD Blower Cooling & Downturn Packaged Unit (Model Digit 2=P, Digit 16=A-H)
134.82
48.00
33.50
24.00
29.32
QTY (4) DRILL LOCATOR DIMPLES
FOR FIELD DRILLED ELECTRICAL
CONDUIT ENTRY HOLES
(SPACED 2.0" APART)
OPTIONAL RAINHOOD
& BIRDSCREEN
34.25
24.53
3.97
19.23
G
A
2
2
24.00
(INSIDE)
4.27
P (OVER ROOF)
2.20
DOWNTURN
DUCT CONNECTION
9.21
24.00
(INSIDE)
4.29
24.94
137.63
FRESH AIR
DUCT CONNECTION 14.55
4.5
9.21
4
1
3
4.35
24.00
(INSIDE) N
K (INSIDE)
24.00
(INSIDE)
2
1.50
1.50
5.29
OPTIONAL RETURN AIR
DUCT CONNECTION
5.29
6.28
6.28
Table 42.1 - Outdoor STANDARD Blower Unit (Model Digit 2=C or P, Digit 16=A through H)
Model
Size
Dimensions (inches)
Blower Type
(Digit 16)
A
G
H
J
K
N
P
Gas
Conn.
75
All
33.75 28.75 18.00 25.00 20.02 39.23 32.06
1/2
100/125
All
33.75 28.75 21.00 25.00 20.02 39.23 34.56
1/2
150/175
All
33.75 28.75 24.00 25.00 23.99 39.23 38.82
1/2
All
200/225
37.75 32.75 27.00 28.00 23.99 43.23 40.94
1/2
250/300
E, F, G, or H 37.75 32.75 30.00 28.00 29.96 43.23 44.05
3/4
350/400
E, F, G, or H 37.75 32.75 42.00 28.00 41.90 43.23 55.57
3/4
j
k
l
m
42
For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
5-572.10
3.00
DIMENSIONS - UNIT
Figure 43.1 - Outdoor EXTENDED Blower Cooling Package Unit (Model Digit 2=C, Digit 16=I, J, K, or L)
141.34
24.00
33.50
36.58
47.27
QTY (4) DRILL LOCATOR DIMPLES
FOR FIELD DRILLED ELECTRICAL
CONDUIT ENTRY HOLES
(SPACED 2.0" APART)
28.00 (HEIGHT)
X
H (WIDTH)
(INSIDE)
34.00
32.68
24.00
(INSIDE)
37.85
2
7.65
2
9.21
24.94
P (OVER ROOF)
3.97
34.00
19.23
OPTIONAL RAINHOOD
& BIRDSCREEN
2.32
OPTIONAL RETURN AIR
DUCT CONNECTION
24.00
(Inside)
K (INSIDE)
4.5
14.55
FRESH AIR
DUCT CONNECTION
3
24.00
(INSIDE)
9.21
4
1
2
1.50
3.00
1.50
5.29
5.29
143.98
N
6.28
6.28
Figure 43.2 - Outdoor EXTENDED Blower Cooling & Downturn Unit (Model Digit 2=C, Digit 16=I, J, K, or L)
170.66
29.32
33.50
24.00
36.58
47.27
QTY (4) DRILL LOCATOR DIMPLES
FOR FIELD DRILLED ELECTRICAL
CONDUIT ENTRY HOLES
(SPACED 2.0" APART)
34.00
19.23
24.53
2.32
37.85
2
24.00
(INSIDE)
4.27
DOWNTURN
DUCT CONNECTION
2
24.94
24.00
(INSIDE)
9.21
OPTIONAL RETURN AIR
DUCT CONNECTION
24.00
(INSIDE)
P (OVER ROOF)
3.97
34.00
32.68
OPTIONAL RAINHOOD
& BIRDSCREEN
4.35
K (INSIDE)
4.5
FRESH AIR
14.55
DUCT
CONNECTION
24.00
(INSIDE)
4
1
9.21
2
3
N
1.50
1.50
5.29
3.00
5.29
6.28
6.28
173.22
Table 43.1 - Outdoor EXTENDED Blower Unit (Model Digit 2=C or P, Digit 16=I, J, K, or L)
Model
Size
Dimensions (inches)
Blower Type
(Digit 16)
F
H
K
N
P
Gas
Conn.
250/300
I, J, or K
27.09 30.00 29.96 43.23 44.05
3/4
350/400
I, J, or K
38.60 42.00 41.90 43.23 55.57
3/4
j
k
l
m
For Right Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Left Hand Access Units - Location of drill locator dimples for field drilled gas connection entry holes - one side of unit and one on bottom.
For Right Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
For Left Hand Access Units - Location of drill locator dimples for field drilled electrical connection, entry holes identical as side electrical connections.
5-572.10
43
DIMENSIONS - UNIT BASE
Figure 44.1 - Unit Base Dimensions
A
C To end of Unit
F
G
M
M
6.28
B
J
E
Drill Locator Dimple
for Field Drilled Gas
Connection Entry Hole
Left Hand Access Units
Inside
Drill Locator Dimple
for Field Drilled Gas
Connection Entry
Hole Right Hand
Access Units
6.28
M
M
Return Air Opening
Supply Air Opening
24.00 Inside
4.29
Inside
E
24.00
H
4.35
Inside
Table 44.1 - Outdoor Unit Base Rail Dimensions for Model Digit 2=B or D (All dimensions in inches)
Dimensions
Model
Blower TypeDigit 2=BDigit 2=DDigit 2=B or D
Size
(Digit 16)
75
100/125
150/175
200/225
250/300
250/300
350/400
350/400
500/600
500/600
700/800
700/800
840/960
All
All
All
All
E,F,G, or H
I, J, or K
E,F,G, or H
I, J, or K
G or H
I, J, K, or L
G or H
I, J, K, or L
I, J, K, or L
A
C
84.41 81.49
84.41 81.49
84.41 81.49
84.41 81.49
84.41 81.49
120.00 117.34
84.41 81.49
120.00 117.34
117.53 114.94
153.12 150.74
117.53 114.94
153.12 150.74
186.52 184.14
A
C
113.63110.82
113.63110.82
113.63110.82
113.63110.82
113.63 110.82
149.22 146.66
113.63 110.82
149.22 146.66
146.77 144.12
182.36 180.00
146.77 144.12
182.36 180.00
215.77 213.40
B
E
34.85
37.36
41.61
43.71
46.75
46.75
58.27
58.27
46.75
46.75
58.27
58.27
58.27
19.52
19.52
23.49
23.49
29.46
29.46
41.40
41.40
29.46
29.46
41.40
41.40
41.40
F jG j
78.66
78.66
78.66
78.66
78.66
114.23
78.66
114.23
78.66
114.23
78.66
114.23
114.23
53.72
53.72
53.72
53.72
53.72
84.29
53.72
82.29
53.72
82.29
53.72
82.29
82.29
H
J
M
1.53
1.53
1.53
1.53
1.53
1.28
1.53
1.28
1.53
1.28
1.53
1.28
1.28
32.00
34.50
38.75
40.85
43.89
43.89
55.41
55.41
43.89
43.89
55.41
55.41
55.41
6.23
7.49
7.63
8.69
7.21
7.21
7.00
7.00
7.21
7.21
7.00
7.00
7.00
Table 44.2 - Outdoor Unit Base Rail Dimensions Model Digit 2=C or P (All dimensions in inches)
Dimensions
Model
Blower TypeDigit 2=CDigit 2=PDigit 2=C or P
Size
(Digit 16)
75
100/125
150/175
200/225
250/300
250/300
350/400
350/400
All
All
All
All
E,F,G, or H
I, J, or K
E,F,G, or H
I, J, or K
A
C
A
C
108.39105.49
108.39105.49
108.39105.49
108.39105.49
108.39 105.49
143.98 141.34
108.39 105.49
143.98 141.34
137.63134.82
137.63134.82
137.63134.82
137.63134.82
137.63 134.82
173.22 170.66
137.63 134.82
173.22 170.66
B
E
34.85
37.36
41.61
43.71
46.75
46.75
58.27
58.27
19.52
19.52
23.49
23.49
29.46
29.46
41.40
41.40
jG
as connection for 1st furnace. For Model sizes 500-800 add 33.5” for second furnace gas connection.
For Model sizes 840-960 add 33.50” and 67.00” for second and third furnace gas connections.
44
5-572.10
F
G
78.66
78.66
78.66
78.66
78.66
114.23
78.66
114.23
53.72
53.72
53.72
53.72
53.72
82.29
53.72
82.29
H
J
M
1.53
1.53
1.53
1.53
1.53
1.28
1.53
1.28
32.00
34.50
38.75
40.85
43.89
43.89
55.41
55.41
6.23
7.49
7.63
8.69
7.21
7.21
7.00
7.00
DIMENSIONS - ROOF CURBS
Figure 45.1 - Roof Curb Dimensions
DISCHARGE AIR OPENING
FOR UNITS WITH MODEL
DIGIT 2= D OR P ONLY
Table 45.1 - Roof Curb Dimensions Model Digit 2=B or D (All dimensions in inches)
Dimensions
Model
Blower Type
Digit 2=B
Digit 2=D
Size
(Digit 16)
A
75
100/125
150/175
200/225
250/300
250/300
350/400
350/400
500/600
500/600
700/800
700/800
840/960
All
All
All
All
E,F,G, or H
I, J, or K
E,F,G, or H
I, J, or K
G or H
I, J, K, or L
G or H
I, J, K, or L
I, J, K, or L
88.77
88.77
88.77
88.77
88.77
124.61
88.77
124.61
121.89
157.74
121.89
157.74
191.14
B
C
76.77
76.77
76.77
76.77
76.77
112.61
76.77
112.61
109.89
145.74 105.98
109.89
145.74 105.98
179.14 105.98
D
A
B
39.76
39.76
73.16
117.98
117.98
117.98
117.98
117.98
153.83
117.98
153.83
151.10
186.98
151.10
186.98
220.39
105.98
105.98
105.98
105.98
105.98
141.63
105.98
141.63
139.10
174.98
139.10
174.98
208.39
C
Digit 2=B or D
D
105.98 35.85
105.98 35.85
105.98 33.12
105.98 69.00
105.98 33.12
105.98 69.00
105.98 102.41
E
F
G
H
Jj
39.33
41.84
46.18
48.22
51.25
51.25
62.76
62.76
51.25
51.25
62.76
62.76
62.76
27.33
29.84
34.18
36.22
39.25
39.25
50.76
50.76
39.25
39.25
50.76
50.76
50.76
3.97
5.22
5.41
6.43
4.96
4.96
4.74
4.74
4.96
4.96
4.74
4.74
4.74
19.52
19.52
23.49
23.49
29.46
29.46
41.40
41.40
29.46
29.46
41.40
41.40
41.40
74.84
74.84
74.84
74.84
74.84
110.41
74.84
110.41
74.84
110.41
74.84
110.41
110.41
Table 45.2 - Roof Curb Dimensions Model Digit 2=C or P (All dimensions in inches)
Dimensions
Model
Blower Type
Digit 2=C
Digit 2=P
Size
(Digit 16)
A
75
100/125
150/175
200/225
250/300
250/300
350/400
350/400
All
All
All
All
E,F,G, or H
I, J, or K
E,F,G, or H
I, J, or K
112.74
112.74
112.74
112.74
112.74
148.59
112.74
148.59
B
C
100.74
100.74
100.74
100.74
100.74
136.59 105.98
100.74
136.59 105.98
Digit 2=C or P
D
A
B
C
D
E
F
G
30.61
30.61
141.98
141.98
141.98
141.98
141.98
177.83
141.98
177.83
129.98
129.98
129.98
129.98
129.98
165.83
129.98
165.83
100.74
100.74
100.74
100.74
100.74
105.98
100.74
105.98
29.24
29.24
29.24
29.24
29.24
59.85
29.24
59.85
39.33
41.84
46.18
48.22
51.25
51.25
62.76
62.76
27.33
29.84
34.18
36.22
39.25
39.25
50.76
50.76
3.97
5.22
5.41
6.43
4.96
4.96
4.74
4.74
H
J
19.52 74.84
19.52 74.84
23.49 74.84
23.49 74.84
29.46 74.84
29.46 110.41
41.40 74.84
41.40 110.41
jG
as connection for 1st furnace. For Model sizes 500-800 add 33.5” for second furnace gas connection.
For Model sizes 840-960 add 33.50” and 67.00” for second and third furnace gas connections.
5-572.10
45
DIMENSIONS - COOLING COILS
Figure 46.1 - DX Coil Drawing
(All dimensions in inches)
Airflow Direction
Rows 2
W
7.5
3
6
4
7.5
6
10
TOP VIEW
L
1.5
1.5
W
Distributor Inlet (Liquid
Line) Connection(s)
(Second Inlet on Dual
Circuit Coils)
S
Coil for Right Hand Units
(Digit 9 = R)
Headers on opposite
side for Left Hand Units
FL
FRONT VIEW
H
SIDE VIEW
FH
Airflow
Direction
1.5
Suction Line Connections in direction
of airflow
(Second Inlet on Dual Circuit Coils)
I
Table 46.1 - DX Coil Dimensions
DX - Single Circuit j
DX - Dual Circuit k
Model Size
Cooling MBH
FH
H
S
FL
I
L
FL
I
L
75
All
27.5
30.5
1.5
18
25
21
16.25
26.5
19.25
100/125
All
27.5
30.5
1.5
21
28
24
19.5
29.75
22.5
150/175
All
27.5
30.5
1.5
24
31
27
23
33.25
28.5
Below 185 MBH
32.5
34.5
0.5
27
34
30
185 MBH & Up
32.5
34.5
0.5
27
34.5
30
25.5
35.75
28.5
Below 185 MBH
32.5
34.5
0.5
30
37
33
185 MBH & Up
32.5
34.5
0.5
30
37.5
33
28.5
38.75
31.5
Below 185 MBH
32.5
34.5
0.5
42
49
45
185 MBH & Up
32.5
34.5
0.5
42
49.5
45
40.25
50.5
43.25
200/225
250/300
350/400
Single Circuit DX coils have 1 each Suction Line and Liquid Lines. Refer to AccuSpec for line size diameters.
Dual Circuit DX coils have 2 each Suction Line and Liquid Lines. Refer to AccuSpec for line size diameters.
j
k
Figure 49.2 - Chilled Water Coil Drawing
(All dimensions in inches)
Airflow Direction
Rows 4
W
7.5
TOP VIEW
W
L
1.5
1.5
1.8
S
Coil for Right Hand Units (Digit
9 = R)
Headers on opposite side for
Left Hand Units
2.25
FL
FRONT VIEW
H
Return Water Line
Connection turned 90° in
direction of airflow
Airflow
Direction
V
Supply Water Line
Connection turned 90° in
direction of airflow
2.25
I
1.8
Table 46.2 - Chilled Water Coil Dimensions
Model Size
FH
H
S
V
FL
I
L
75
100/125
150/175
200/225
250/300
350/400
27
27
27
33
33
33
30
30
30
34.5
34.5
34.5
1.5
1.5
1.5
0.5
0.5
0.5
1.5
1.5
1.5
1
1
1
16.25
19.50
23.00
25.50
28.50
40.25
25.50
28.75
32.25
34.75
37.75
49.50
19.25
22.50
26.00
28.50
31.50
43.25
46
SIDE VIEW
FH
5-572.10
Supply Line
1.50
1.50
1.50
1.50
1.50
1.50
MPT
MPT
MPT
MPT
MPT
MPT
Return Line
1.50
1.50
1.50
1.50
1.50
1.50
MPT
MPT
MPT
MPT
MPT
MPT
6
10
DIMENSIONS - RAINHOOD, REMOTE PANEL & EVAPORATIVE COOLER
Table 47.1 - Rainhood and Birdscreen
Dimensions (inches)
Figure 47.1 - Rainhood and Birdscreen Dimensions
A
1.14
42.66 Approx.
1.09
31.19
1.14
Rainhood & Birdscreen
Model Size
A
75
29.43
100/125
31.94
150/175
38.24
200/225
38.24
250/300
41.34
350/400
52.85
500/600
41.34
700/800
52.85
840/960
52.85
32.71
44.56
.75
Figure 47.2 - Evaporative Cooler (Model Digit 22=D)
J-BOX
Top View
1.25
PUMP
C
W/2 -1.50
Drain
1/2" 1/2"
NPTNPT
DRAIN
NPT
Overflow
1/2"1/2"
NPT
OVERFLOW
1.50
W
3.00
1.50
4.50
Side View
Figure 47.3 - Remote Panel Dimensions
OPTIONAL
1” PRE-FILTER
RACK
NOTES:
1. Holes visable on right
side are also on the left
side in the same location.
2. Holes on top are also on
the back in the same
location horizontally.
5.57
1.25
3.53
BLOWER
SECTION
A
36.00
3.38
2.13
3.53
B
12"
MEDIA
H
Table 47.3 - Remote Panel Dimensions (inches)
1/2" NPT
WATER INLET
4.50
3.00
.25
LEVELING LEGS
25.50
Remote Panel Type
A
B
C
Light and Switch Panels Only
Light and Switch Panels with Single Stage
Thermostat or Electronic Set Point Adjustor
Light and Switch Panels with
Two Stage Thermostat
7.06
-
2.81
10.60
3.53
4.58
13.09
6.03
5.82
Table 47.2 - Evap Cooler Dimension, Performance, and Weight Data
Model Size
Blower Type
(Digit 16)
H (in.)
2.56
12” GlasDek Media (Digit 23 = D)
W (in.)
Maximum
Cooling CFM
Media
Face Area (ft²)
Maximum Face
Velocity (ft/min)
Dry Weight (lbs)
Op. Weight (lbs)
75
All
34
30
2778
4.0
695
154
285
100/125
All
34
30
4000
5.0
800
159
295
150/175
All
34
36
5200
6.5
800
169
336
200/225
All
38
36
6000
7.5
800
174
341
250/300
E,F,G, or H
38
39
6500
8.1
800
182
363
250/300
I, J, or K
56
39
10400
13.0
800
214
404
350/400
E,F,G, or H
38
51
8500
10.6
800
228
473
350/400
I, J, or K
47
51
11050
13.8
800
244
496
500/600
G or H
38
39
6500
8.1
800
182
363
500/600
I, J, K or L
56
39
10400
13.0
800
214
404
700/800
G or H
38
51
8500
10.6
800
228
473
700/800
I, J, K or L
47
51
11050
13.8
800
244
496
840/960
I, J, K or L
47
51
11050
13.8
800
244
496
5-572.10
47
WEIGHTS
Table 48.1 - Unit Operating Weights j
Model Blower Type
Size
(Digit 16)
Dampers
Digit 2
B
D
C
P
540
546
647
75
All
439
100/125
All
474
578
584
150/175
All
511
621
626
200/225
All
Motor
Double Wall (all sections)
Fresh Air Fresh &
Filters
Only
Return Air
Digit 2
Rainhood
B
D
C
P
6
26
46
65
38
73
72
107
688
6
26
46
67
38
73
72
107
736
6
29
52
70
43
78
77
112
707
714
833
6
29
52
72
46
86
85
125
626
747
756
877
8
33
60
83
46
88
87
129
250/300
875
996
1005
1126
15
33
60
83
93
135
134
176
12
38
70
90
53
102
101
150
17
38
70
90
96
145
144
193
I, J, or k
350/400 E,F,G, or H
738
876
887
1025
350/400
1019
1057
1168
1306
I, J, or k
See Motor Data
588
250/300 E,F,G, or H
500/600
G or H
959
1080
n/a
n/a
8
33
60
83
46
88
n/a
n/a
500/600
I, J, k, or L
1208
1329
n/a
n/a
15
33
60
83
93
135
n/a
n/a
700/800
G or H
1153
1291
n/a
n/a
12
38
70
90
53
102
n/a
n/a
700/800
I, J, k, or L
1352
1490
n/a
n/a
17
38
70
90
96
145
n/a
n/a
840/960
I, J, k, or L
1767
1905
n/a
n/a
17
38
70
90
96
145
n/a
n/a
Table 48.2 - Motor Operating Weights j
Digit 17 - Motor Size
Digit 14 Digit 18 Supply Voltage Motor Type
A - 115/60/1ph
B - 208/60/1ph
C - 230/60/1ph
D - 208/60/3ph
E - 230/60/3ph
F - 460/60/3ph
G - 575/60/3ph
A or L B or M C or N D or P E or Q F or R G or S H or T I or W J or X K or Y V or Z
1/3
1/2
3/4
1
1-1/2
2
3
5
7-1/2
10
15
20
1 - ODP
25
23
25
32
40
49
81
-
-
-
-
-
5 - TE
25
28
30
37
45
49
83
-
-
-
-
-
1 - ODP
-
23
25
32
40
49
81
87
-
-
-
-
5 - TE
-
28
30
37
45
49
83
86
-
-
-
-
1 - ODP
25
23
25
32
40
49
81
87
-
-
-
-
5 - TE
25
28
30
37
45
49
83
86
-
-
-
-
1 - ODP
17
18
21
-
-
-
-
-
-
-
-
-
2 - ODP HE
-
-
-
83
94
99
83
94
141
126
220
250
5 - TE
15
23
26
-
-
-
-
-
-
-
-
-
6 - TE HE
-
-
-
68
66
66
92
99
158
200
259
368
1 - ODP
17
18
21
-
-
-
-
-
-
-
-
-
2 - ODP HE
-
-
-
40
46
54
87
94
130
126
217
250
5 - TE
15
23
30
-
-
-
-
-
-
-
-
-
6 - TE HE
-
-
-
53
66
67
92
117
194
213
322
368
1 - ODP
17
18
21
-
-
-
-
-
-
-
-
-
2 - ODP HE
-
-
-
40
46
54
87
94
130
126
217
250
5 - TE
15
23
30
-
-
-
-
-
-
-
-
-
6 - TE HE
-
-
-
53
66
66
92
117
194
213
322
368
1 - ODP
-
25
28
-
-
-
-
-
-
-
-
-
2 - ODP HE
-
-
-
35
40
45
76
89
90
220
310
360
5 - TE
-
24
33
-
-
-
-
-
-
-
-
-
6 - TE HE
-
-
-
68
40
67
100
125
192
200
326
368
j All weights in pounds and are approximate.
48
5-572.10
Evap
Cooler
See Evaporative Cooler Data
Base Unit
THIS PAGE INTENTIONALLY LEFT BLANK
5-572.10
49
MAINTENANCE
Filters
WARNING
When servicing or repairing this equipment, use only factoryapproved service replacement parts. A complete replacement
parts list may be obtained by contacting Modine Manufacturing
Company. Refer to the rating plate on the appliance for
complete appliance model number, serial number, and
company address. Any substitution of parts or controls not
approved by the factory will be at the owner’s risk.
If the unit is supplied with a dirty filter switch and light, clean or
replace the filters any time the dirty filter light comes on.
Units which do not have a dirty filter warning light should have
the filters checked monthly. Clean or replace if necessary. In dirty
atmospheres, filter maintenance may be required more often.
Figure 50.1 - Filter Replacement Arrangement for
STANDARD Blower Size (Model Digit 16=A through H)
FILTER
SPACER
CAUTION
B
Do not attempt to reuse any mechanical or electrical
controllers which have been wet. Replace defective controller.
B
IMPORTANT
B
C
B
B
B
B
A
A
150/175
100/125
75
FILTER
SPACER
To check most of the Possible Remedies in the
troubleshooting guide listed in Table 55.1, refer to the
applicable sections of the manual.
A
Electrical Wiring
A
A
A
A
All heating equipment should be serviced before each heating
season to assure proper operations. The following items may
be required to have more frequent service schedule based on
the environment in which the unit is installed, and the frequency
of the equipment operation.
C
A
A
A
A
A
A
C
A
350/400
700/800
250/300
500/600
200/225
A = 20'' x 25''
B = 16” x 25”
C = 15” x 25”
FILTER SPACER TO BE INSERTED
ON NON-ACCESS SIDE OF UNIT
Figure 50.2 - Filter Replacement Arrangement for
EXTENDED Blower Size (Model Digit 16 = I, J, K, or L)
The electrical wiring should be checked annually for loose
connections or deteriorated insulation.
A
A
Blower Assembly
The blower assembly includes the bearings, drive sheaves and belts.
Blower bearings should be checked and lubricated based on
the blower manufacturer’s recommendations. Bearings should
also be checked for any unusual wear and replaced if needed.
Drive sheaves should be checked at the same time the
bearings are inspected. Check to make sure the sheaves are
in alignment and are securely fastened to the blower and motor
shafts.Belt tension should be rechecked shortly after the unit
has been installed to check for belt stretching. After the initial
start-up, monthly checks are recommended.
50
B
C
FILTER
SPACER
5-572.10
A
D
NON-ACCESS
SIDE
NON-ACCESS
SIDE
FILTER
SPACER
A
FILTER
SPACER
A
A
A
C
A
C
250/300
500/600
A
C
D
A = 20'' x 25''
B = 16” x 25”
C = 20” x 16”
D = 15” x 25”
A
A
B
B
350/400
700/800
840/960
MAINTENANCE
Cooling Coil Maintenance
1.
2.
3.
4.
eriodically, inspect the coil for signs of corrosion
P
and leaks. Repair and replacement of the coil and the
connecting piping, valves, etc., must be performed as
needed by a qualified technician.
Should the coil surface need cleaning, caution should be
exercised in selecting the cleaning solution as well as
the cleaning equipment. Improper selection can result
in damage to the coil and/or health hazards. Cleaning
solutions must not be corrosive or cause damage to copper
tube/aluminum fin coils. Clean the coil from the leaving airside so that foreign material will be washed out of the coil
rather than pushed further in. Be sure to carefully read and
follow the cleaning fluid manufacturer’s recommendations
before using any cleaning fluid.
For DX coils, replace the filter dryer(s) as needed.
For chilled fluid coils:
a. Maintain the circulated fluid free of sediment, corrosive
products and biological contaminants.
b. Freeze Protection - During the winter, chilled water coils
need to be protected against freezing. Two common
methods are 1) blowing out the coils with air, or 2)
flushing coils with inhibited glycol designed for corrosion
protection in HVAC applications. Select an inhibited
glycol solution that will protect the coil from the lowest
possible temperatures that can occur at that locality.
Cooling Coil Drain Pan and Drain System
The drain pan, trap, and drain pipe must be cleaned regularly to
avoid blockage that can reduce or stop water flow as follows:
1. At the beginning of the cooling season, inspect and clean
the entire cooling coil cabinet and condensate drain pan to
remove contaminants.
2. Inspect and clean the condensate drain trap and piping.
The use of a cleanout opening at the top of the trap can
help facilitate this maintenance.
3. Fill the trap with water to ensure proper operation and
replace the cap on the cleanout opening to close the
system.
4. During the end of cooling season shutdown of the system,
disconnect and remove all water from the trap and drain to
prevent freeze damage. If local building codes permit, the
trap may be filled with an antifreeze solution.
5. If the unit is used year round, regularly inspect and clean
the cooling coil cabinet, condensate drain pan, and trap/
drain system to ensure proper function.
6. Depending on climate, freeze protection of the trap may be
required during non-cooling days.
Duct Furnace
When providing annual maintenance for the duct furnace, keep
the unit free from dust, dirt, grease and foreign matter. Pay
particular attention to:
1. The power exhauster discharge opening and the
combustion air inlet louvers.
2. The burner ports and pilot burner orifices (avoid the use of
hard, sharp instruments capable of damaging surfaces for
cleaning these ports). To check the burner port and pilot
burner orifice, see Burner and Pilot Assembly Removal.
3. The air shutters and main burner orifices (avoid the use of
hard, sharp instruments capable of damaging surfaces for
cleaning these orifices). To check the air shutters and main
burner orifices, see for Manifold Assembly Removal.
The heat exchanger should be checked annually for cracks
and discoloration of the tubes. If a crack is detected, the heat
exchanger should be replaced before the unit is put back into
service. If the tubes are dark gray, airflow across the heat
exchanger should be checked to insure that a blockage has
not occurred or the blower is operating properly.
Gas Piping & Controls
The gas valves and piping should be checked annually for
general cleanliness and tightness.
The gas controls should be checked to insure that the unit is
operating properly.
(continued next page)
5-572.10
51
MAINTENANCE
Manifold Assembly Removal
Burner and Pilot Assembly Removal
1.
2.
3.
4.
1.
2.
3.
To remove the burner (Refer to Figure 52.2):
To remove the manifold (Refer to Figure 52.1):
Shut off gas and electric supply.
Remove the side access panel.
Disconnect gas manifold at ground union joint.
Remove the two screws holding the manifold to the heat
exchanger support.
5. Slide the manifold through the manifold bracket.
6. Clean the orifices and adjust the air shutters as necessary.
7. Follow steps 3-6 in reverse to install the manifold
assembly.
8. Turn on the electric and gas supply.
9. Check the ground union joint for leaks with a soap
solution. Tighten if necessary.
10. Install the side access panel.
4.
5.
6.
7.
Figure 52.1 - Manifold Assembly Removal
8.
9.
SERIAL
PLATE
Shut off gas and electric supply.
Disconnect the pilot supply line from the gas valve.
Disconnect the ignition cable from the ignition controller
(located in the electrical junction box). Feed the cable
through the bushing in the bottom of the junction box.
Remove the screws holding the burner side access panel.
Attached to the panel are the burner retaining pins that
align the burner.
Slide the burner assembly out. The pilot is attached to the
burner assembly.
Examine the burner and pilot assembly for cleanliness
and/or obstructions as necessary (see Duct Furnace for
cleaning instructions).
Replace the burner assembly in reverse order. In replacing
the burner, be certain that the rear burner slots are located
properly on the burner retaining pins. Do not force the
burner side access panel, it will not fit if the burner is not
properly aligned.
Reconnect the ignition cable and pilot gas supply line.
Turn on the electric and gas supply.
Figure 52.2 - Burner and Pilot Assembly Removal
ELECTRICAL
JUNCTION BOX
GROUND
UNION
JOINT
MANIFOLD
BURNER SIDE
ACCESS PANEL
PILOT
ASSEMBLY
IGNITION
CABLE
PILOT
SUPPLY
LINE
HEAT
EXCHANGER
SUPPORT
52
5-572.10
AIR SHUTTERS
(NOT SHOWN)
ARE LOCATED
ON THE
MANIFOLD
THIS PAGE INTENTIONALLY LEFT BLANK
5-572.10
53
SERVICE & TROUBLESHOOTING
WARNING
When servicing or repairing this equipment, use only
factory-approved service replacement parts. A complete
replacement parts list may be obtained by contacting Modine
Manufacturing Company. Refer to the rating plate on the unit
for complete unit model number, serial number, and company
address. Any substitution of parts or controls not approved by
the factory will be at the owner’s risk.
CAUTION
Do not reuse any mechanical or electrical component which
has been wet. Such component must be replaced.
IMPORTANT
To check most of the Possible Remedies in the
troubleshooting guide listed in Table 54.1, refer to the
applicable sections of the manual.
Table 54.1 - Troubleshooting
Trouble
Pilot does not light
Possible Cause
1. Main gas is off.
2. Power supply is off.
3. Air in gas line.
4. Dirt in pilot orifice.
Possible Remedy
1. Open manual gas valve.
2. Turn on main power.
3. Purge gas line.
4. Check for plugged pilot orifice and clean
with compressed air if necessary.
5.
Gas pressure out of proper range.
5.
6.
6.
8.
Pilot valve does not open.
a. Defective ignition controller.
b. Defective gas valve.
No Spark at ignitor.
a. Loose wire connections.
b. Pilot sensor is grounded.
c. Defective ignition controller.
Safety device has cut power.
1.
2.
3.
4.
5.
1.
2.
3.
Defective valve.
Loose wiring.
Defective pilot sensor
Defective ignition controller.
Improper thermostat wiring.
Too much primary air.
Main pressure set too high.
Orifice too large.
1.
2.
3.
4.
5.
1.
2.
3.
1.
2.
Insufficient primary air.
Dirty orifice.
1.
2.
3.
1.
2.
3.
Misaligned orifice.
Too much primary air.
Main pressure set too high.
Orifice too large.
3.
1.
2.
3.
7.
Main burners do not light (Pilot is lit)
Lifting Flames (See Figure 54.1)
Yellow Tipping
(With propane gas, some yellow tipping is
always present.)
Flashback
(Continued next page)
Figure 54.1 - Lifting Flame Condition
54
5-572.10
Adjust to a minimum for Natural Gas - 6”
W.C. Minimum for Propane Gas - 11”
W.C. Maximum 14” W.C.
Check wiring for 24 volts to valve.
a. Replace ignition controller.
b. Replace gas valve.
7
8.
a. Check all ignition controller wiring.
b. Replace sensor if cracked or worn
c. Replace ignition controller.
Check all safety devices (High limit, air
flow proving switch, power exhauster
centrifugal switch, gas pressure switches,
etc.) Determine and correct problem.
Reset if necessary.
Replace valve.
Check wiring to gas valve.
Replace pilot sensor.
Replace ignition controller.
Verify wiring compared to wiring diagram.
Reduce primary air.
Adjust to a maximum of 14” W.C.
Check orifice size with those listed on the
serial plate.
Increase primary air.
Check orifices and clean with compressed
air if necessary.
Check manifold, replace if necessary.
Reduce primary air.
Adjust to a maximum of 14” W.C.
Check orifice size with those listed on the
serial plate.
SERVICE & TROUBLESHOOTING (CONTINUED)
Table 54.1 - Troubleshooting (Continued)
Trouble
Floating Flames (See Figure 55.1)
Possible Cause
1. Insufficient primary air.
2. Main pressure set too high.
3. Orifice too large.
Flame Rollout (See Figure 55.2)
Not Enough Heat
4.
1.
2.
Blocked vent cap.
Main pressure set too high.
Orifice too large.
3.
Blocked vent cap.
1.
Unit cycling on high limit. j
a. Obstructions/leaks in duct system.
b. Main pressure set too high.
c. Blower motor not energized.
d. Loose belt
e. Blower speed too low.
Too Much Heat
Power Exhauster Motor Will Not Start
Possible Remedy
1. Increase primary air.
2. Adjust to a maximum of 14” W.C.
3. Check orifice size with those listed on the
serial plate.
4. Clean louvers in vent cap.
1. Adjust to a maximum of 14” W.C.
2. Check orifice size with those listed on the
serial plate.
3. Clean louvers in vent cap.
1.
a. Clean/correct duct system.
b. Adjust to a maximum of 14” W.C.
c. Check that blower motor operates
within 45 seconds of when gas controls
are energized.
d. Adjust belt tension.
e. Check/correct blower drive settings for
proper rpm.
f. Check/correct venting system.
g. Replace high limit switch.
2. Adjust main gas pressure. (Minimum for
Natural Gas — 6” W.C. Minimum for
Propane Gas — 11” W.C.)
3. Adjust outside air damper to decrease
outside air percentage (if possible).
2.
f. Blocked/damaged venting system.
g. Defective high limit switch.
Main pressure set too low.
3.
Too much outside air.
4.
5.
Thermostat malfunction.
Gas controls wired incorrectly.
4.
5.
6.
Unit undersized.
6.
1.
2.
Thermostat malfunction.
Gas controls do not shut-off.
a. Gas controls wired incorrectly.
1.
2.
3.
4.
1.
2.
3.
4.
5.
b. Short circuit.
Main gas pressure set too high.
Defective gas valve.
Power supply is off.
No 24V power to thermostat.
Thermostat malfunction.
Defective power exhauster relay.
Defective power exhauster motor.
3.
4.
1.
2.
3.
4.
5.
Check/replace thermostat.
Check unit wiring against the wiring
diagram.
Check design conditions. If unit is undersized, an additional unit(s) or other heat
source must be added.
Check/replace thermostat.
a. Check unit wiring against the wiring
diagram.
b. Check for loose or worn wires.
Adjust to a maximum of 14” W.C.
Replace gas valve.
Turn on main power.
Check control transformer.
Check/replace thermostat.
Replace power exhauster relay.
Replace power exhauster motor.
j The duct furnace comes standard with an automatic reset high limit switch that will shut-off the gas should the discharge air temperature become
excessive. See Figure 22.1, indicator (49) for the location of either the standard automatic or optional manual reset high limit switch. The switch
should operate only when something is wrong with the unit operation. Anytime the switch operates, correct the difficulty immediately or serious
damage may result. If the switch cuts off the gas supply during normal operation, refer to the “Not Enough Heat” section of Table 54.1.
Figure 55.1
Floating Flame Condition
Figure 55.2
Flame Rollout Appearance
5-572.10
55
THIS PAGE INTENTIONALLY LEFT BLANK
56
5-572.10
START-UP CHECKLIST
START-UP CHECKLIST
INDIRECT GAS-FIRED HEATING EQUIPMENT
Job Name:
Date:
Address:
Model No.:
City & State:
Order No.:
Start-Up Check List “ALL ITEMS MUST BE CHECKED”
Serial No.:
1. All shipping straps, braces, tie downs removed?
2. Unit installed level and secure?
3. Gas burner properly located and aligned?
4. Blower and motor alignment okay?
5. Bearings aligned and tight on shaft/bearing supports?
6. Electrical connections checked and secure?
7. Gas piping checked and tightened if necessary?
8. Any visible damage to unit?
Describe: ______________________________________________
If damaged, was the damage repaired?
9. Air inlet and discharge checked for obstructions?
10. Bearings checked for proper lubrication?
11. Filters in place and correct to direction of air flow?
12. Belt tension checked?
13. Electric supply to unit: ______ Volts, ______ Hz, ______ Phase
14. Gas supply to unit: ______ Natural, ______ Propane
15. Gas supply pressure to unit: ______ " W.C., ______ PSIG
16. Inlet and/or discharge dampers operating correctly?
17. Blower rotation correct?
18. Blower speed: Hi Speed ______ RPM, Lo Speed ______ RPM
19. Motor speed: Hi Speed ______ RPM, Lo Speed ______ RPM
20. Is unit noisy? Excessive vibration?
21. Motor voltage: L1 ______ V, L2 ______ V, L3 ______ V
22. Motor amps: L1 ______ Amp, L2 ______ Amp, L3 ______ Amp
23. High temperature limit control continuity checked?
24. Burner light off
Low Fire: Does entire burner light off?
Hi Fire: Burner pressure reading? ______ " W.C.
Is flame clean and stable? Does flame modulate in response to temperature control(s)?
25. Gas input checked?
Input at maximum firing rate: __________ Btu/Hr
Input at minimum firing rate: ‑__________ Btu/Hr
26. Gas piping checked for and free of leaks?
27. Has wiring been verified to match the unit wiring diagram?
28. Have all the modes of the sequence of operation been verified and tested?
29. What optional and/or accessory control devices have been set?
Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.)
Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.)
Device: _______________ Setting: __________ (°F/psi/Inches W.C./etc.)
_____ Yes
_____ Yes
_____ Yes
_____ Yes
_____ Yes
_____ Yes
_____ Yes
_____ Yes
____
____
____
____
____
____
____
____
No
No
No
No
No
No
No
No
_____ Yes
_____ Yes
_____ Yes
_____ Yes
_____ Yes
____
____
____
____
____
No
No
No
No
No
_____ Yes
_____ Yes
____ No
____ No
_____ Yes
____ No
_____ Yes
____ No
_____ Yes
____ No
_____ Yes
_____ Yes
_____ Yes
____ No
____ No
____ No
_____ Yes
_____ Yes
_____ Yes
____ No
____ No
____ No
_____ Yes
_____ Yes
_____ Yes
____ No
____ No
____ No
Customer/Owner instructed in operation and maintenance of unit? _____ Yes
____ No
Name of Person(s) Instructed: _______________________________________________________________
Comments: _____________________________________________________________________________
_____________________________________________________________________________
Start-Up Company Name: ________________________________ Phone: ___________________________
Signature:________________________________________________________ Date: _________________
5-572.10
57
MODEL DESIGNATIONS
Model Identification
Figure 58.1 - Serial Plate & Model ID Plate Locations
Modine weatherproof duct furnace/make-up air units contain an
ETL/ETL Canada certified weatherproof duct furnace. This duct
furnace is combined with either a blower section, or a blower
and/or cooling and/or downturn sections to make a complete
make-up air or heating/ventilating/cooling unit that is ETL/ETL
Canada certified. For this reason, two identification plates are
used on these models. The Serial Plate is used to identify the
duct furnace and its components. The Model Identification
Plate is used to identify the complete model, including blower,
cooling, and/or downturn sections.
Replacement Parts Ordering
When servicing, repairing or replacing parts on these units,
locate the model identification plate of the unit and always give
the complete Model Number and Serial Number from the model
identification plate. The model identification plate is located
on the door of the electrical control box (See Figure 58.1).
For a complete description of the model number, see Model
Identification.
Figure 58.2 - Serial Plate (sample shown, actual data may vary)
Figure 58.3 - Model Identification Plate (sample shown, actual data may vary)
58
5-572.10
SERIAL
PLATE
MODEL
IDENTIFICATION
PLATE
MODEL NOMENCLATURE FOR SYSTEM UNITS
Weatherproof Model Nomenclature
1
2
3
456
7
8
9
10
11
12
13
14
15
16
17
18
19 20 21
22
23
PT
UC
V
MBH
HE
DS
AS
ATR
GT
GV
SS
SV
TR
BB
HP
MT
SA
EC
CC
15 - Transformer (TR)
1 - 40 VA
2 - 75 VA
3 - 150 VA
1 - Product Type (PT)
H or O - Outdoor HVAC Unit
2 - Unit Configuration (UC)
B - Blower Package - Furnace & Blower
C - Cooling Package - Furnace, Blower, & Cooling Cabinet
D - Downturn Package - Furnace, Blower, & Downturn
P - Packaged Unit - Furnace, Blower, Cooling Cabinet, & Downturn
3 - Venting (V)
P - Power
4,5,6 - Furnace Input Rating (MBH) (Except for 840 & 960)
75 - 75,000 Btu/Hr Input
350 - 350,000 Btu/hr Input
100 - 100,000 Btu/Hr Input
400 - 400,000 Btu/Hr Input
125 - 125,000 Btu/Hr Input
500 - 500,000 Btu/Hr Input
150 - 150,000 Btu/Hr Input
600 - 600,000 Btu/Hr Input
175 - 175,000 Btu/Hr Input
700 - 700,000 Btu/Hr Input
200 - 200,000 Btu/Hr Input
800 - 800,000 Btu/Hr Input
225 - 225,000 Btu/Hr Input
840 - 1,050,000 Btu/Hr Input
250 - 250,000 Btu/Hr Input
960 - 1,200,000 Btu/Hr Input
300 - 300,000 Btu/hr Input
7 - Heat Exchanger/Burner/Drip Pan Material (HE)
A - Aluminized Steel
S - 409 Stainless Steel Heat Exchanger/Burner
T - 409 Stainless Steel Heat Exchanger/Burner/Drip Pan
8 - Development Sequence Designation (DS)
F - Single Stage
M - 2-stage or Modulating
9 - Access Side (AS)
R - Right Hand
L - Left hand
4 - 250 VA
0 - None
16 - Blower Size & Bearing Type (BB)
A - 9-7 Spider Bearings
G - 15-15 Spider Bearings
B - 9-7 Pillow Block Bearings H - 15-15 Pillow Block Bearings
C - 9-9 Spider Bearings
I - 18-18 Spider Bearings under 15 Hp
D - 9-9 Pillow Block Bearings J - 18-18 Pillow Block Brngs under 15 Hp
E - 12-12 Spider Bearings
K - 18-18 Pillow Block Brngs, 15 Hp & Up
F - 12-12 Pillow Block Brngs L - 20-18 Pillow Block Bearings
17 - Motor Horsepower (HP)
A - 1/3 Hp
L - 1/3 Hp with Motor Starter
B - 1/2 Hp
M - 1/2 Hp with Motor Starter
C - 3/4 Hp
N - 3/4 Hp with Motor Starter
D - 1 Hp
P - 1 Hp with Motor Starter
E - 1-1/2 Hp
Q - 1-1/2 Hp with Motor Starter
F - 2 Hp
R - 2 Hp Hp with Motor Starter
G - 3 Hp
S - 3 Hp with Motor Starter
H - 5 Hp
T - 5 Hp with Motor Starter
I - 7-1/2 Hp
W - 7-1/2 Hp with Motor Starter
J - 10 Hp
X - 10 Hp with Motor Starter
K - 15 Hp
Y - 15 Hp with Motor Starter
V - 20 Hp
Z - 20 Hp with Motor Starter
18 - Motor Type (MT)
1 - ODP
2 - ODP - High Eff.
5 - TE
6 - TE - High Eff.
19 - Sheave Arrangement (SA)
A - (See Sheave Tables)
10 - Air Temperature Rise (ATR)
H - High 60°-100°F
L - Low 20°-60°F
11 - Gas Type (GT)
N - Natural with ignition controller
P - Propane with ignition controller
12 - Gas Valve (GV)
1 - Single Stage
2 - Two Stage
4 - Electronic Modulation
7 - Electronic Modulation 0-10 Vdc External Input
8 - Electronic Modulation 4-20 mA External Input
9 - Electronic Modulation with Modine Control System
13 - Additional Safety Switches (SS)
0 - No Switches (Standard)
1 - Low Gas Pressure Switch (Premium)
2 - High Gas Pressure Switch (Premium)
3 - High and Low Gas Pressure Switch (Premium)
14 - Supply Voltage (SV)
A - 115/60/1
B - 208/60/1
C - 230/60/1
D - 208/60/3
AC
E - 230/60/3
F - 460/60/3
G - 575/60/3
20,21 - Air Control (AC)
AA - RA Opening
BA - FA Opening
CA - FA & RA Openings
DA - FA Dampers w/ 2 pos motor (No RA)
EA - FA & RA Dampers w/ 2 pos motor
GA - FA & RA Mod motor w/ 0-10 Vdc External Input
GB - FA & RA Mod motor w/ 4-20 mA External Input
GC - FA & RA Mod motor w/ Minimum Position (Factory Mounted)
GD - FA & RA Mod motor w/ Remote Position
GE - FA & RA Mod motor w/ 3 pos. damper (100% RA, Variable, 100% OA)
GG - FA & RA Mod motor w/ Min Position & Proportional Temp Controller
GH - FA & RA Mod motor w/ Remote Position & Prop. Temp Controller
GJ - FA & RA Mod motor w/ FA Enthalpy Controller
HP - FA & RA Floating motor w/ Space Pressure Controller
JA - Manual FA & RA Dampers
22 - Evaporative Cooling (EC)
0 - None
D - 12" GLASdek Media, Stainless Steel Casing
23 - Cooling Coil (CC)
0 - None
1 - Factory Installed Coil
5-572.10
59
COMMERCIAL WARRANTY
Seller warrants its products to be free from defects in material and
workmanship, EXCLUSIVE, HOWEVER, of failures attributable to the use
of materials substituted under emergency conditions for materials normally
employed. This warranty covers replacement of any parts furnished from the
factory of Seller, but does not cover labor of any kind and materials not
furnished by Seller, or any charges for any such labor or materials, whether
such labor, materials or charges thereon are due to replacement of parts,
adjustments, repairs, or any other work done. This warranty does not apply to
any equipment which shall have been repaired or altered outside the factory of
Seller in any way so as, in the judgment of Seller, to affect its stability, nor
which has been subjected to misuse, negligence, or operating conditions in
excess of those for which such equipment was designed. This warranty does
not cover the effects of physical or chemical properties of water or steam or
other liquids or gases used in the equipment.
BUYER AGREES THAT SELLER’S WARRANTY OF ITS PRODUCTS TO BE
FREE FROM DEFECT IN MATERIAL AND WORKMANSHIP, AS LIMITED
HEREIN, SHALL BE IN LIEU OF AND EXCLUSIVE OF ALL OTHER
WARRANTIES, EITHER EXPRESS OR IMPLIED, WHETHER ARISING
FROM LAW, COURSE OF DEALING, USAGE OF TRADE, OR OTHERWISE,
THERE ARE NO OTHER WARRANTIES, INCLUDING WARRANTY OF
MERCHANTABILITY OR FITNESS FOR PURPOSE, WHICH EXTEND
BEYOND THE PRODUCT DESCRIPTION CONFIRMED BY BUYER AND
SELLER AS OF THE DATE OF FINAL AGREEMENT.
This warranty is void if the input to the product exceeds the rated input as
indicated on the product serial plate by more than 5% on gas-fired and oil-fired
units, or if the product in the judgment of SELLER has been installed in a
corrosive atmosphere, or subjected to corrosive fluids or gases, been subjected
to misuse, negligence, accident, excessive thermal shock, excessive humidity,
physical damage, impact, abrasion, unauthorized alterations, or operation
contrary to SELLER’S printed instructions, or if the serial number has been
altered, defaced or removed.
BUYER AGREES THAT IN NO EVENT WILL SELLER BE LIABLE FOR
COSTS OF PROCESSING, LOST PROFITS, INJURY TO GOODWILL, OR
ANY OTHER CONSEQUENTIAL OR INCIDENTAL DAMAGES OF ANY KIND
RESULTING FROM THE ORDER OR USE OF ITS PRODUCT, WHETHER
ARISING FROM BREACH OF WARRANTY, NONCONFORMITY TO
ORDERED SPECIFICATIONS, DELAY IN DELIVERY, OR ANY LOSS
SUSTAINED BY THE BUYER.
Component
Applicable Models
BUYER’S REMEDY FOR BREACH OF WARRANTY, EXCLUSIVE OF ALL
OTHER REMEDIES PROVIDED BY LAW, IS LIMITED TO REPAIR OR
REPLACEMENT AT THE FACTORY OF SELLER, ANY COMPONENT WHICH
SHALL, WITHIN THE APPLICABLE WARRANTY PERIOD DEFINED HEREIN
AND UPON PRIOR WRITTEN APPROVAL, BE RETURNED TO SELLER
WITH TRANSPORTATION CHARGES PREPAID AND WHICH THE
EXAMINATION OF SELLER SHALL DISCLOSE TO HAVE BEEN DEFECTIVE;
EXCEPT THAT WHEN THE PRODUCT IS TO BE USED BY BUYER AS A
COMPONENT PART OF EQUIPMENT MANUFACTURED BY BUYER,
BUYER’S REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE
LIMITED TO ONE YEAR FROM DATE OF SHIPMENT FROM SELLER. FOR
GAS-FIRED PRODUCTS INSTALLED IN HIGH HUMIDITY APPLICATIONS
AND UTILIZING STAINLESS STEEL HEAT EXCHANGERS, BUYER’S
REMEDY FOR BREACH, AS LIMITED HEREIN, SHALL BE LIMITED TO
TEN YEARS FROM DATE OF SHIPMENT FROM SELLER.
These warranties are issued only to the original owner-user and cannot be
transferred or assigned. No provision is made in these warranties for any
labor allowance or field labor participation. Seller will not honor any expenses
incurred in its behalf with regard to repairs to any of Seller’s products. No
credit shall be issued for any defective part returned without proper written
authorization (including, but not limited to, model number, serial number,
date of failure, etc.) and freight prepaid.
OPTIONAL SUPPLEMENTAL WARRANTY
Provided a supplemental warranty has been purchased, Seller extends the
warranty herein for an additional four (4) years on certain compressors.
Provided a supplemental warranty has been purchased, Seller extends the
warranty herein for an additional four (4) years or nine (9) years on certain
heat exchangers.
EXCLUSION OF CONSUMABLES & CONDITIONS BEYOND SELLER’S
CONTROL
This warranty shall not be applicable to any of the following items: refrigerant
gas, belts, filters, fuses and other items consumed or worn out by normal wear
and tear or conditions beyond Seller’s control, including (without limitation as
to generality) polluted or contaminated or foreign matter contained in the air or
water utilized for heat exchanger (condenser) cooling or if the failure of the part
is caused by improper air or water supply, or improper or incorrect sizing of
power supply.
“APPLICABLE WARRANTY PERIOD”
Heat Exchangers
Gas-Fired Units except MPR Models
TEN YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN
TEN YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN TEN YEARS
FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN ONE
HUNDRED TWENTY-SIX MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER
OCCURS FIRST
Heat Exchangers
Low Intensity Infrared Units , Gas Heat option on
MPR models
Compressors
Condensing Units for Cassettes
FIVE YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN
FIVE YEARS FROM DATE OF RESALE BY BUYER OR ANY OTHER USER, WITHIN FIVE YEARS
FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN SIXTY-SIX
MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST
Burners
Low Intensity Infrared Units
Compressors
MPR Models
Other
Components excluding Heat Exchangers,
Coils, Condensers, Burners, Sheet Metal
TWO YEARS FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN
TWO YEARS FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN
THIRTY MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST
Heat Exchangers/Coils
Indoor and Outdoor Duct Furnaces and
System Units, Steam/Hot Water Units,
Oil-Fired Units, Electric Units, Cassettes,
Vertical Unit Ventilators
Compressors
Vertical Unit Ventilators
ONE YEAR FROM DATE OF FIRST BENEFICIAL USE BY BUYER OR ANY OTHER USER, WITHIN
ONE YEAR FROM DATE OF RESALE BY BUYER IN ANY UNCHANGED CONDITION, OR WITHIN
EIGHTEEN MONTHS FROM DATE OF SHIPMENT FROM SELLER, WHICHEVER OCCURS FIRST
Burners
High Intensity Infrared Units
Sheet Metal Parts
All Products
As Modine Manufacturing Company has a continuous product improvement program, it reserves the right to change design and specifications without notice.
© Modine Manufacturing Company 2020
© Modine Manufacturing Company 2015
Modine Manufacturing Company
1500 DeKoven Avenue
Racine, WI 53403
Phone: 1.800.828.4328 (HEAT)
www.modinehvac.com
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