Installation & Service Manual

Installation & Service Manual
6-584.5
5H8000200000
March, 2014
installation and service manual
separated combustion gas-fired unit heaters
model HDS and HDC
All models approved for use in California by the CEC and
in Massachusetts. Unit heater is certified for residential and
commercial applications.
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.
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. Do not locate ANY gas-fired units in areas
where chlorinated, halogenated, or acidic
vapors are present in the atmosphere. These
substances can cause premature heat
exchanger failure due to corrosion, which
can cause property damage, serious injury,
or death.
FOR YOUR SAFETY
What to do if you smell gas:
1.Open windows.
2.Do not try to light any appliance.
3.Do not touch any electrical switch; do not use any phone in your building.
4.Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. If you can not reach your gas supplier, call your fire department.
IMPORTANT
The use of this manual is specifically intended
for a qualified installation and service agency.
All installation and service of these units must
be performed by a qualified installation and
service agency.
Inspection on Arrival
1. Inspect unit upon arrival. In case of damage, report it
immediately to transportation company and your local
Modine 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).
Table of Contents
Inspection on Arrival . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Special Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SI (Metric) Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . 3
Before you Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Unit Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Combustible Material and Service Clearances . . . . . . . . . 4
Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Gas Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Service/Trouble Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Unit Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Serial/Model Number/Replacement Parts . . . . . . . . . . . . . . . 19
Commercial Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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
Subject to any more restrictive local or national
codes.
hazard intensity levels
1.
2.
3.
4.
DANGER: Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Warning: Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury.
IMPORTANT: Indicates a situation which, if not avoided, MAY result in a potential safety concern.
danger
warning
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
1. Gas fired heating equipment must be vented - do not operate unvented.
2. A built-in power exhauster is provided - additional external power exhausters are not required or permitted.
3. If an existing heater is being replaced, it may be necessary to resize the venting systems. Improperly sized venting systems can result in vent gas leakage or the formation of condensate. Refer to the National Fuel Gas Code ANSI Z223.1 (NFPA 54) or CSA B149.1 latest edition. Failure to follow these instructions can result in injury or death.
4. Under no circumstances should two sections of double wall
vent pipe be joined together within one horizontal vent system
due to the inability to verify complete seal of inner pipes.
5. 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.
6. Gas pressure to appliance controls must never exceed 14" W.C. (1/2 psi).
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. Disconnect power supply before making wiring connections to prevent electrical shock and equipment damage.
9. 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.
10.Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.
11.Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than the rated voltage.
12.When servicing or repairing this equipment, use only factory-approved service replacement parts. A complete replacements parts list may be obtained by contacting the factory. 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.
2
6-584.5
caution
1. All literature shipped with this unit should be kept for future use for servicing or service diagnostics. Do not discard any literature shipped with this unit.
2. Consult piping, electrical, and venting instructions in this manual before final installation.
3. Do not attach ductwork, air filters, or polytubes to any propeller unit heater.
4. Clearances to combustible materials are critical. Be sure to
follow all listed requirements.
5. Low profile heaters are designed for use in heating applications with ambient startup temperatures between -40°F and
90°F, and ambient operating temperatures between 40°F
and 90°F.
6. Do not install unit outdoors.
7. In garages or other sections of aircraft hangars such
as offices and shops that communicate with areas used for
servicing or storage, keep the bottom of the unit at least
7' above the floor unless the unit is properly guarded
to provide user protection from moving parts. In parking
garages, the unit must be installed in accordance with
the standard for parking structures ANSI/NFPA 88A latest edition, and in repair garages the standard for repair garages
NFPA 30A - latest edition (Formerly NFPA 88B). In Canada,
installation of heaters in airplane hangars must be in
accordance with the requirements of the enforcing authority,
and in public garages in accordance with the current CSAB149 codes.
8. In aircraft hangars, keep the bottom of the unit at least 10' from the highest surface of the wings or engine enclosure of the highest aircraft housed in the hangars and in accordance with the requirements of the enforcing authority
and/or NFPA 409-latest edition.
9. Installation of units in high humidity or salt water atmospheres will cause accelerated corrosion resulting in a
reduction of the normal life of the units.
10.Do not install units below 7' measured from the bottom of the unit to the floor in commercial applications (unless
unit is properly guarded to provide user protection from moving parts) and 5' measured from the bottom of the unit to the floor in residential applications.
11. Be sure no obstructions block air intake and discharge of unit heaters.
12.The minimum distance from combustible material is based
on the combustible material surface not exceeding 160°F. Clearance from the top of the unit may be required to be greater then the minimum specified if heat damage, other than fire, may occur to materials above the unit heater at the temperature described.
13.Allow 18" of clearance at rear (or 6" beyond end of motor at
rear of unit, whichever is greater) and access side to provide ample air for proper operation of fan.
14. Installation 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 CSA-B149.1.
15.The concentric vent adapter box must be installed inside
of the structure or building. Do not install this box on the
exterior of a building or structure.
16.Purging of air from gas supply line should be performed as
described in the National Fuel Gas Code, ANSI Z223.1
(NFPA 54) - latest edition, or, or in Canada in CSA-B149
codes.
17.When leak testing the gas supply piping system, the appliance and its combination gas control must be isolated during any pressure testing in excess of 14" W.C. (1/2 psi).
special precautions / SI (METRIC) CONVERSION FACTORS
BEFORE YOU BEGIN
CAUTION
18.The unit should be isolated from the gas supply piping
system by closing its field installed manual shut-off valve.
This manual shut-off valve should be located within 6' of
the heater.
19.Turn off all gas before installing appliance.
20.Ensure that the supply voltage to the appliance, as
indicated on the serial plate, is not 5% less than the rated
voltage.
21.Check the gas inlet pressure at the unit upstream of the combination gas control. The inlet pressure should be
6-7" W.C. on natural gas or 12-14" W.C. on propane. If inlet pressure is too high, install an additional pressure
regulator upstream of the combination gas control.
22. Service or repair of this equipment must be performed by
a qualified service agency.
23.Do not attempt to reuse any mechanical or electronic
ignition controllers which has been wet. Replace defective controller.
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.
2.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 then 5%.
3. To prevent premature heat exchanger failure, observe
heat exchanger tubes. If the tubes become red while
blower and furnace are in operation, check to be sure the
blower has been set to the proper rpm for the application.
Refer to page 13 for Blower Adjustments.
4. Start-up and adjustment procedures must be performed
by a qualified service agency.
CAUTION
1. All literature shipped with this unit should be kept for future
use for servicing or service diagnostics. Leave manual with
the owner. Do not discard any literature shipped with this unit.
2. Consult piping, electrical, and venting instructions in this manual before final installation.
3. Do not attach ductwork, air filters, or polytubes to any propeller unit heater.
In the U.S., the installation of these units must comply with the
National Fuel Gas Code, ANSI Z223.1 - latest edition (NFPA
54) and other applicable local building codes. In Canada, the
installation of these units must comply with local plumbing or
waste water codes and other applicable codes and with the
current code CSA-B149.1.
1.All installation and service of these units must be performed by a qualified installation and service agency only as defined in ANSI Z223.1, latest edition or in Canada by a licensed gas fitter.
2. This unit is certified with the controls furnished. For replacements parts, please order according to the replacement parts list on serial plate. Always know your model and serial numbers. The right is reserved to substitute other authorized controls as replacements.
3. Unit is balanced for correct performance. Do not alter fan or operate motors at speeds below what is shown in this manual.
4. Information on controls is supplied separately.
5. The same burner is used for natural and propane gas.
To check most of the Possible Remedies in the troubleshooting guide listed in Table 17.1, refer to the applicable
sections of the manual.
SI (Metric) Conversion Factors
To ConvertMultiply By To Obtain
"W.C. 0.249
kPa
°F (°F-32) x 5/9
°C
Btu
1.06
kJ
37.3
kJ/m3
Btu/ft3 Btu/hr 0.000293
kW
CFH (ft3/hr)0.000472 m3/min
CFH (ft3/hr)0.00000787 m3/s
CFM (ft3/min)0.0283 m3/min
CFM (ft3/min)0.000472 m3/s
To ConvertMultiply By To Obtain
feet 0.305
m
Gal/Hr.
0.00379
m3/hr
Gal/Hr.
3.79
l/hr
gallons 3.79
l
Horsepower
746
W
inches 25.4
mm
pound 0.454
kg
psig 6.89
kPa
psig 27.7
"W.C.
6-584.5
3
unit location
unit location
Table 4.1 - Clearances
danger
Unit Side
Clearance To Recommended
Combustible MaterialsService Clearance
Top and Bottom1"
1"
Access Side1"
18"
Non-Access Side1"
1"
Rear18" 18"
Vent Connector4"
4"
Appliances must not be installed where they may be exposed
to a potentially explosive or flammable atmosphere.
CAUTION
1. Clearances to combustible materials are critical. Be sure to
follow all listed requirements.
2.Low profile heaters are designed for use in heating
applications with ambient startup temperatures between
-40°F and 90°F, and ambient operating temperatures
between 40°F and 90°F.
3. Do not install unit outdoors.
4. In garages or other sections of aircraft hangars such as offices and shops that communicate with areas used for servicing or storage, keep the bottom of the unit at least
7' above the floor unless the unit is properly guarded.
In parking garages, the unit must be installed in accordance
with the standard for parking structures ANSI/NFPA
88A-latest edition, and in repair garages the standard for
repair garages NFPA 30A - latest edition (Formerly NFPA
88B). In Canada, installation of heaters in airplane
hangars must be in accordance with the requirements
of the enforcing authority, and in public garages in
accordance with the current CSA-B149 codes.
5. In aircraft hangars, keep the bottom of the unit at least 10'
from the highest surface of the wings or engine enclosure
of the highest aircraft housed in the hangars and in accor dance with the requirements of the enforcing authority
and/or NFPA 409-latest edition.
6. Installation of units in high humidity or salt water atmospheres will cause accelerated corrosion resulting in
a reduction of the normal life of the units.
6. Do not install units in locations where gas ignition system is
exposed to water spray, rain, or dripping water.
7. Mounting Height (measured from bottom of unit) at which
unit heaters are installed is critical. Refer to mounting
height and heat throw data on page 16 of this manual. The
maximum mounting height for any unit is that height above
which the unit will not deliver heated air to the floor.
Turning The Unit 180° (Model Sizes 30-75 Only)
All units are produced at the factory with left-side controls (when
looking at the unit). If the installation requires the controls to
be on the right side, all HDS/HDC heaters - with the exception
of the 100 and 125 - can be turned-over by following the
instructions below.
• By turning the unit 180° from the way it was received from
the factory, the sides become opposite but the front and
back remain in the same relative position. The bottom
panel now becomes the top panel and vice-versa.
• Remove the access panel, turn it 180°, and re-attach it to
the unit so that all the information labels can be read.
• Remove the spring loaded deflector blades, turn them over,
replace, and adjust so they are open and in a position to
direct the heated air down to the floor.
important
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.
Location Recommendations
1. When locating the heater, consider general space and
heating requirements, availability of gas and electrical
supply, and proximity to vent locations.
2. When locating units, it is important to consider that the
combustion air and exhaust vent piping must be connected
to the outside atmosphere. Vent terminals should be located
adjacent to one another. Maximum equivalent vent lengths
are listed in “Section A - General Instruction - All Units” of the
Venting instructions.
3. Be sure the structural support at the unit location site is
adequate to support the unit's weight. For proper operation
the unit must be installed in a level horizontal position.
4. 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.
5. Be sure that the minimum clearances to combustible
materials and recommended service clearances are
maintained. Units are designed for installation with the
minimum clearances as shown in Table 4.1.
4
6-584.5
unit mOUNTING
Figure 5.2 - Unit Heater Turned 180° (30-75 units only)
(Access panel and heated air outlet change sides)
CAUTION
1. Do not install units below 7' measured from the bottom of the unit to the floor in commercial applications (unless
unit is properly guarded to provide user protection from moving parts) and 5' measured from the bottom of the unit to the floor in residential applications.
2. Be sure no obstructions block air intake and discharge of unit heaters.
3. The minimum distance from combustible material is based on the combustible material surface not exceeding
160°F. Clearance from the top of the unit may be required
to be greater than the minimum specified if heat damage, other than fire, may occur to materials above the unit
heater at the temperature described.
4. Allow 18" clearance at rear (or 6" beyond end of motor at rear of unit, whichever is greater) and access side to provide ample air for proper operation of fan.
1. Be sure the means of suspension is adequate to support the weight of the unit (see page 16 for unit weights).
2. For proper operation, the unit must be installed in a level horizontal position.
3. Clearances to combustibles as previously specified must be
strictly maintained.
4. For model sizes 30-75, before lifting the heater for
suspension, the mounting brackets must be installed as
follows (for bracket accessory installation on model sizes
100-125, see the latest revision of literature 6-594):
• For standard (left side) control access, remove the (3)
screws and mounting bracket along the top edge of both
the front and back of the unit. Install the front bracket as
shown in Figure 5.1 by aligning the screw holes on the
bracket with the screw holes on the top edge of the unit.
Repeat for the bracket on the back of the unit.
• For right side control access, remove the (3) screws and
mounting bracket along the top edge of both the front and
back of the unit. Turn the unit over and install the front
bracket as shown in Figure 5.2 by aligning the screw holes
on the bracket with the screw holes on the top edge of the
unit (originally the bottom edge). Repeat for the bracket on
the back of the unit.
5a.Suspension by screws/lag bolts: Secure the mounting
brackets to the ceiling joists or truss, using 1/4" screws with
1/2" washers. These unit mounting brackets are slotted to
accommodate joists on 16" or 24" centerlines. See page 16
for mounting bracket dimensions.
Figure 5.1 - Unit Heater in Standard Mounting
Configuration (30-75 Units Only)
5b.Suspension by threaded rod: The unit can also be hung
with threaded rod utilizing the same mounting brackets.
Attach the threaded rod to the unit mounting brackets,
securing with a top and bottom nut. For model sizes
100-125, the units are designed to be suspended by
threaded rod without the use of brackets. On each piece of
3/8" threaded rod used, screw a nut a distance of about one
inch onto the end of the threaded rods that will be screwed
into the unit heater. Place a washer over the end of the
threaded rod and screw the threaded rod into the unit heater
weld nuts on the top of the heater at least 5 turns, and no
more than 10 turns. Tighten the nut first installed onto the
threaded rod to prevent the rod from turning.
Next, drill holes into a steel channel or angle iron at the
same centerline dimensions as those chosen for the heater
being installed. The steel channels or angle iron pieces need
to span and be fastened to appropriate structural members.
Cut the threaded rods to the preferred length, push them
through the holes in the steel channel or angle iron and
secure with washers and lock nuts, lock washers and nuts,
or a washer with double nut arrangement.
NOTE: A pipe hanger adapter kit, shown in Figure 5.3, is
available as an accessory. One kit consists of two drilled
3/4" IPS pipe caps and two 3/8" - 16 x 1-3/4" capscrews
to facilitate threaded pipe suspension. Two kits would be
required.
5c.Shelf mounted units: The unit heater can also be installed
on a shelf. The mounting brackets will need to be attached
to the heater the same manner as explained in note #4,
however, to mount on a shelf the brackets must go on the
bottom of the heater. The brackets must be affixed to the
shelf using similar screws (1/4" screw with 1/2" washer) as
overhead joist or truss mounting. Be sure all clearance to
combustible requirements are met.
Figure 5.3 - Unit Heater Suspension Methods
(Threaded Rod)
6-584.5
(Pipe Adaptor Kit)
5
installation - venting
WARNING
1. Gas fired heating equipment must be vented - do not
operate unvented.
2.A built-in power exhauster is provided - additional external
power exhausters are not required or permitted.
3. If an existing heater is being replaced, it may be necessary
to resize the venting systems. Improperly sized venting
systems can result in vent gas leakage or the formation of
condensate. Refer to the National Fuel Gas Code ANSI
Z223.1 (NFPA 54) or CSA-B149.1 Installation Code - latest
edition. Failure to follow these instructions can result in
serious injury or death.
4.Under no circumstances should two sections of double wall
vent pipe be joined together within one horizontal vent system
due to the inability to verify complete seal of inner pipes.
CAUTION
Installation must conform with local building codes or in the
absence of local codes, with Part 7, Venting of Equipment, of
the National Fuel Gas Code, ANSI Z223.1 (NFPA 54) - latest
edition. In Canada installation must be in accordance with
CSA B149.1.
Model HDS/HDC unit heaters must be vented with the proper
passageway as described in these instructions to convey
flue gases from the unit or the vent connector to the outside
atmosphere. The heaters must also have a separate combustion
air intake pipe to bring in fresh air for combustion from the
outside atmosphere.
The venting instructions are organized in sections, based on
installation type. The sections are identified as follows:
Instructions Section A
B
C
D
Applicable Installation Instructions
by Vent System Type
General instructions for ALL installations
VERTICAL 2-PIPE vent systems ➀
HORIZONTAL 2-PIPE vent systems ➀
HORIZONTAL AND VERTICAL
CONCENTRIC vent systems ➀
A4.Refer to Table 6.1 for total equivalent vent pipe lengths,
making the vent system as straight as possible. Refer to
Table 6.1 for total equivalent vent pipe lengths, making the
vent system as straight as possible.
Table 6.1 - Vent Pipe Diameters, Transitions, and
Total Equivalent Vent Pipe Lengths For Horizontal
and Vertical Venting Systems
Model
Size
Vent Transition Vent Pipe Minimum
Maximum
Included
Sizes
Eqv. Length Eqv. Length
30-45
3" to 4"
3"
3'
25'
60-125
Not Required
4"
3'
25'
A5. A minimum of 12" straight pipe is recommended from the
flue outlet before turns in the vent pipe.
A6. Horizontal sections of vent pipe are to be installed with a
minimum downward slope from the appliance of 1/4 inch
per foot and suspended securely from overhead structures
at points not greater than 3' apart.
A7. Fasten individual lengths of vent together with at least three
corrosion resistant sheet metal screws.
A8. Keep single wall vent pipe at least 6" from combustible
materials. For double wall vent pipe, follow the vent
pipe manufacturer’s clearances to combustibles. The
minimum distance from combustible materials is based
on the combustible material surface not exceeding 160°F.
Clearance from the vent pipe (or the top of the unit) may be
required to be greater than 6" if heat damage other than fire
could result (such as material distortion or discoloration).
A9. Avoid venting through unheated space when possible.
When venting does pass through an unheated space or
if the unit is installed in an environment that promotes
condensation, insulate runs greater than 5' to minimize
condensation. Inspect for leakage prior to insulating and
use insulation that is noncombustible with a rating of not
Figure 6.1 - Venting Through Combustible Roof
or Wall
Single Wall Vent Pipe
➀The differences between Vertical and Horizontal vent systems in 2-Pipe or
Concentric Vent configurations will be identified in “Section A - General
Instructions – All Units”.
Double Wall Vent Pipe ➀
Listed
Terminal
Listed
Terminal
Flashing
Flashing
Section A – General Instructions – All Units
A1. If the unit heater being installed is replacing existing
equipment and using the existing vent system from that
equipment, inspect the venting system for proper size and
horizontal pitch, as required in the National Fuel Gas Code
ANSI Z223.1 or CSA B149.1 Installation Code-latest edition
and these instructions. Determine that there is no blockage
or restriction, leakage, corrosion and other deficiencies,
which could cause an unsafe condition.
A2. The combustion air pipe and vent pipe should be
galvanized steel or other suitable corrosion resistant
material. Follow the National Fuel Gas Code for minimum
thickness of vent material. The minimum thickness for
connectors varies depending on the pipe diameter. Do
not vent unit with PVC or other forms of plastic venting
material.
A3. All heaters come with factory installed vent and combustion
air adapters for attaching the vent pipe to the heater. Attach
the vent pipe to the adapter with 3 corrosion resistant
screws. (Drill pilot holes through the vent pipe and adapter
prior to screwing in place). Vent pipe must not be smaller
than the connector size.
Listed
Thimble
Single
Wall
Clearance Specified
by Type B Vent Mfg.
Double
Wall
Listed
Terminal
Single Wall Vent Pipe Terminating
with Double wall vent pipe. ➀
Clearance Specified
by Type B Vent Mfg.
Single
Wall
Listed
Terminal
Single Wall Vent Pipe
Listed
Thimble
➀ See Instruction A12 for attaching single wall pipe to double wall pipe
6
6-584.5
installation - venting
less than 400°F. Install a tee fitting at the low point of the
vent system and provide a drip leg with a clean out cap as
shown in Figure 8.1.
A10.When the vent passes through a combustible INTERIOR
wall or floor, a metal thimble 4" greater than the vent
diameter is necessary. If there is 6' or more of vent pipe
in the open space between the appliance and where the
vent pipe passes through the wall or floor, the thimble need
only be 2" greater than the diameter of the vent pipe. If a
thimble is not used, all combustible material must be cut
away to provide 6" of clearance. Where authorities have
jurisdiction type B vent may be used for the last section
of vent pipe to maintain clearance to combustibles while
passing through wall or floor. See Figure 6.1. Any material
used to close the opening must be noncombustible.
A11.All seams and joints of the single wall pipe must be sealed
with metallic tape or silastic suitable for temperatures up to
400°F. Wrap the tape two full turns around the vent pipe.
One continuous section of double wall vent pipe may be
used within the vent system to pass through the wall to
a listed vent cap. Refer to instruction A12 in “Section A –
General Instructions – All Units” for attaching double wall
pipe to single wall pipe.
A12.The following are General Instructions for Double Wall
(Type B) Terminal Pipe Installation:
How to attach a single wall vent terminal to double wall
(type B) vent pipe:
1. Look for the “flow” arrow on the vent pipe.
2. Slide the vent terminal inside the exhaust end of the
double wall vent pipe.
3. Drill (3) holes through the pipe and the vent terminal.
Using 3/4" long sheet metal screws, attach the cap to
the pipe. Do not over tighten.
How to connect a single wall vent system to a double
wall (type B) vent pipe:
1. Slide the single wall pipe inside the inner wall of the
double wall pipe.
2. Drill (3) holes through both walls of the single and
double wall vent pipes. Using 3/4" sheet metal screws,
attach the two pieces of pipe. Do not over tighten.
3. The gap between the single and double wall pipe must
be sealed but it is not necessary to fill the full volume
of the annular area. To seal, run a large bead of 400°F
silastic around the gap.
A13.Vent termination clearances must be maintained:
Table 7.1 - Vent Termination Clearances
Minimum Clearances for
StructureVent Terminal Location
Forced air inlet within 10 feet
3 feet above
Combustion air inlet of another appliance
6 feet all directions
Door, window, gravity air inlet,
4 feet horizontal and below
or any building opening
1 foot above
Electric meter, gas meter, gas 4 feet horizontal (U.S.)
regulator, and relief equipment ➀ 6 feet horizontal (Canada)
Gas regulator ➀
3 feet horizontal (U.S.)
6 feet horizontal (Canada)
Adjoining building or parapet wall
6 feet all directions
Adjacent public walkways
7 feet all directions
Grade (ground level)
3 feet above ➁
A14.Do NOT vent this appliance into a masonry chimney.
A15.Do NOT use dampers or other devices in the vent or
combustion air pipes.
A16.The venting system must be exclusive to a single
appliance, and no other appliance is allowed to be vented
into it.
A17.Precautions must be taken to prevent degradation of
building materials by flue products.
A18.Single wall vent pipe must not pass through any
unoccupied attic, inside wall, concealed space, or floor.
A19.Uninsulated single wall vent pipe must not be used
outdoors for venting appliances in regions where the 99%
winter design temperature is below 32°F.A19.
Long runs
of horizontal or vertical combustion air pipes may require
insulation in very cold climates to prevent the buildup of
condensation on the outside of the pipe where the pipe
passes through conditioned spaces.
A20. V
ertical combustion air pipes should be fitted with a tee
with a drip leg and a clean out cap to prevent against the
possibility of any moisture in the combustion air pipe from
entering the unit. The drip leg should be inspected and
cleaned out periodically during the heating season.
A21.The vent terminal must be:
Table 7.2 - Vent Terminals
Model Size
Modine PN
Other Listed Terminals
30-75
5H0722850005
Gary Steel 1092
100-125
5H0722850001
Gary Steel 1092
A22.In addition to following these General Instructions, specific
instructions for Vertical and Horizontal vent systems in
2-Pipe or Concentric Vent configurations must also be
followed. The following outlines the differences:
Vertical Vent System Determination
•
Vertical vent systems terminate vertically (up) (an example is
shown in Figure 8.1).
• Determine the venting configuration as follows:
> For two building penetrations through the wall or roof (one
for the combustion air inlet pipe and one for the vent pipe),
proceed to “Section B - Vertical 2-Pipe Venting”.
> For a single larger building penetration through the wall or
roof, through which both the combustion air inlet and vent
pipes will pass, proceed to “Section D - Horizontal and
Vertical Concentric Venting”.
> For all other cases, proceed to the next section for
Horizontal Vent System Determination.
Horizontal Vent System Determination
• Horizontal vent systems terminate horizontally (sideways)
(an example is shown in Figure 9.1).
• Determine the venting configuration as follows:
> For two building penetrations through the wall or roof (one
for the combustion air inlet pipe and one for the vent pipe),
proceed to “Section C - Horizontal 2-Pipe Venting”.
➀ Do not terminate the vent directly above a gas meter or regulator.
➁ The vent must be at least 6" higher than anticipated snow depth.
6-584.5
> For a single larger building penetration through the wall or
roof, through which both the combustion air inlet and vent
pipes will pass, proceed to “Section D - Horizontal and
Vertical Concentric Venting”.
7
installation - venting
Table 8.1 - Minimum Height from Roof to Lowest
Discharge Opening
Section B – Vertical 2-Pipe Vent System
Installation
Rise X (in)
Roof Pitch
0-6 Flat to 6/12 6-7 6/12 to 7/12 7-8 7/12 to 8/12 8-9 8/12 to 9/12 9-10 9/12 to 10/12 10-11 10/12 to 11/12 11-12 11/12 to 12/12 12-14 12/12 to 14/12 14-16 14/12 to 16/12 16-18 16/12 to 18/12 18-20 18/12 to 20/12 20-21 20/12 to 21/12 ➀ Size according to expected snow depth.
B1.This section applies to vertically vented 2-pipe (one
combustion air inlet pipe and one vent pipe) vent systems
and is in addition to “Section A – General Instructions – All
Units”.
B2.Vertical vent systems terminate vertically (up).
B3.It is recommended to install a tee with drip leg and clean out
cap as shown in Figure 8.1.
B4.The combustion air and vent pipes must be terminated with
(2) listed vent caps.
B5.Vertical vents must terminate a minimum horizontal and
vertical distance from roof lines and adjacent walls or
obstructions. These minimum distances are outlined in
Figure 8.1 and Table 8.1.
B6.The vent must terminate at least 1 foot above and 6 inches
horizontally from the combustion air inlet.
Figure 8.2 - Vertical 2-Pipe Vent System - Flat Roof
Figure 8.1 - Vertical 2-Pipe Vent System - Sloped Roof
TO WALL OR ADJOINING BUILDING
2' MIN
MINIMUM DISTANCE TO ADJOINING WALL
OR BUILDING IS 2 FEET.
ROOF FLASHING
Exhaust
EXHAUST
COMBUSTION AIR
USE LISTED THIMBLES
THROUGH CEILING
AND ROOF
LISTED
TERMINAL
"H" MIN*
"H" MIN*
(SEE TABLE 8.1)
ROOF FLASHING
12
USE LISTED THIMBLE
THROUGH ROOF AND
CEILING
BACK VIEW
4" MIN
EXHAUST
COMBUSTION AIR
12" MIN
RECOMMENDED
* SIZE ACCORNING
TO EXPECTED
SNOW DEPTH.
TEE WITH DRIP LEG
AND CLEANOUT CAP
B9. O
nce venting is complete, proceed section titled “Installation
– Gas Connections”.
TEE WITH DRIP LEG
AND CLEANOUT CAP
X
Combustion Air
USE THIMBLE
THROUGH
12" MIN*
CELLING
"H" MIN*
(SEE TABLE 8.1)
8
LISTED
TERMINAL
12" MIN
LISTED
TERMINAL
"H" MIN*
(SEE TABLE 8.1)
ROOF PITCH IS:
X / 12
6" MIN
LISTED
TERMINAL
REFER TO TABLE 8.1 FOR "H" DIMENSION.
ROOF FLASHING
Min Height H (ft) ➀
1.00
1.25
1.50
2.00
2.50
3.25
4.00
5.00
6.00
7.00
7.50
8.00
TEE WITH DRIP LEG
AND CLEANOUT CAP
(SLOPE 1/4" PER
FOOT DOWNWARD
TOWARD DRIP LEG)
6-584.5
installation - venting
Section C – Horizontal 2-Pipe Vent System
Installation
C11.For a vent termination located under an eave, the
distance of the overhang must not exceed 24". The
clearance to combustibles above the exterior vent
must be maintained at a minimum of 12". Consult the
National Fuel Gas Code for additional requirements for
eaves that have ventilation openings.
C12.Once venting is complete, proceed section titled
“Installation – Gas Connections”.
C1. This section applies to horizontally vented 2-pipe
vent systems (one combustion air inlet pipe and one
vent pipe) and is in addition to “Section A – General
Instructions – All Units”.
C2. Horizontal vent systems terminate horizontally
(sideways).
C3. All horizontal vents must be terminated with a listed vent
cap. The cap must terminate a minimum distance from
the external wall, as summarized in Figure 9.1.
C4. The termination of horizontally vented system must
extend 16 inches beyond the exterior surface of an
exterior wall.
C5. The combustion air pipe must be a minimum of 6 inches
below the vent pipe, and 4 inches from the exterior wall.
C6. Construct the vent system as shown in Figure 9.1.
Figure 9.1 - Horizontal Venting with Downward Pitch
ADJACENT
BUILDING
2' MIN
12"
SLOPE 1/4" PER FOOT
DOWNWARD FROM UNIT
EXHAUST
6" MIN
COMBUSTION AIR
TEE WITH DRIP LEG AND
CLEANOUT CAP AT LOW
POINT OF VENT SYSTEM
LISTED
TERMINAL
4" MIN
SUPPORT BRACKET
C7. When horizontal vents pass through a combustible
wall (up to 22 inches thick), the vent passage must be
constructed and insulated as shown in Figure 9.2.
C8. The vent must be supported as shown in Figure 9.2.
Figure 9.2 - Exhaust Vent Construction Through
Combustible Walls and Support Bracket
FIBER GLASS
INSULATION
MIN. 2"
METAL
SLEEVE
2" MIN.
VENT PIPE
DIAMETER
METAL FACE
PLATE
2" MIN.
METAL
SLEEVE
1"
1"
9"
45
9"
VENT TERMINATION
SUPPORT BRACKET
(where required)
(Make from 1" x 1" steel angle)
C9. When condensation may be a problem, the vent system
shall not terminate over public walkways or over an area
where condensate or vapor could create a nuisance
or hazard or could be detrimental to the operation of
regulators, relief openings, or other equipment.
C10.Maintain a 1/4" per foot downward slope away from the
heater and place a drip leg with clean out near the exit of
the vent as shown in Figure 9.1, or allow the condensate
to drip out the end.
6-584.5
9
installation - venting
Section D – Concentric Vent System
Installation
D1.This section applies to both horizontally and vertically
vented concentric vent systems as defined in “Section A –
General Instructions – All Units”, and is in addition to the
instructions in that section.
D2.When utilizing the concentric vent option, it should have
been predetermined whether the appliance will be
horizontally or vertically vented. Before proceeding, verify
that the concentric vent kit received contains the correct
components for the installation:
For Vertically Vented Units (Refer to Figure 10.1):
➀ Concentric adapter assembly (same for horizontal and
vertical kits)
➁ Standard listed vent cap
➂ Specially designed inlet terminal (part #5H0751540001)
Figure 10.1 - Vertical Concentric Vent Kit
Components
Combustion Air
Inlet Terminal
6" Min.
Outlet Vent
Termination Cap
12" Min.*
*Size according
to expected
snow depth.
Concentric
Vent Adapter
Box
Combustion Air
Exhaust
Building
Roof / Ceiling
CAUTION
The concentric vent adapter box must be installed inside of
the structure or building. Do not install this box on the exterior
of a building or structure.
D3.Once the kit contents have been verified as correct for the
direction of venting, the concentric vent adapter box is to
be installed. Determine the location of the box. Be sure to
maintain all clearances as listed in these instructions.
D4.The adapter box is to be mounted on the interior side of
the building. It must not be mounted outside the building.
The adapter box has integral mounting holes for ease of
installation.
D5.The adapter box can be mounted flush to the wall (for
horizontal kits) or to the ceiling (for vertical kits). The box
can also be offset from the wall or ceiling by using field
supplied brackets. When mounting the box, consider
serviceability and access to the vent and combustion air
pipes. If the box is to be mounted using field supplied
brackets, these brackets must be strong enough to rigidly
secure the box to the wall or ceiling, and should be made
from corrosion resistant material.
D6.Determine the length of the vent pipe and combustion air
inlet pipe for the selected location. THE VENT PIPE WILL
PASS THROUGH THE CONCENTRIC VENT BOX. THE
LAST SECTION OF VENT PIPE IS A CONTINUOUS
LENGTH OF DOUBLE WALL “B” VENT. See section A12
for attaching and terminating double wall pipe. Begin with
pipe lengths on the concentric pipe side of the adapter box
referring to Figures 10.1 and 10.2. These pipes will extend
through the building wall or roof as well as any added length
for the thickness of the wall and the offset from any field
installed brackets.
For Horizontally Vented Units (Refer to Figure 10.2):
10
➀ Concentric adapter assembly (same for horizontal and
vertical kits)
➁ Special vent termination cap (part #5H0751500001)
➂ Special inlet air guard
Figure 10.2 - Horizontal Concentric Vent Kit
Components
For Vertical Concentric Vent Kits
(refer to Figure 10.1):
• The bottom of the combustion air intake pipe must
terminate above the snow line, or at least 12 inches above
the roof, whichever distance is greater.
• The bottom of the vent cap must terminate at least 6 inches
above the top of the combustion air intake cap.
For Horizontal Concentric Vent Kits
(refer to Figure 10.2):
• The combustion air intake pipe must terminate at least
1 inch from the wall to prevent water from running down
the wall and into the pipe.
• The back of the vent cap must terminate at least 14 inches
from the combustion air intake pipe.
D7.Cut the concentric side vent and combustion air pipes to the
proper length as determined in the previous step. See Table
11.1 for Combustion Air and Vent Pipe sizes. The pipes
must be single wall galvanized or stainless steel material,
except for the last section of vent pipe, which must be one
continuous length of double wall B-vent extended through
the concentric vent box and combustion air inlet pipe on the
concentric side of the box.
D8.Allow the concentric side vent pipe to pass through the
concentric vent adapter box, as shown in Figure 11.1.
Attach the double wall vent pipe to the single wall vent pipe
that goes to the unit. Be sure to seal the joint and the open
area around the double wall vent. Seal all joints and seams
using sealant suitable for temperatures up to 400°F.
6-584.5
installation - venting
D9. Slide the combustion air pipe over the vent pipe and attach
to the air inlet of the concentric adapter box, as shown
in Figure 11.1, using at least 3 corrosion resistant sheet
metal screws. Seal the joint and seam using sealant
suitable for temperatures up to 400°F.
Figure 11.1 - Adapter Box with Combustion Air Intake
Pipe Attached
Single Wall Pipe
Type B Vent Pipe 
Model
Size
Combustion Air
(To Unit)
Combustion Air
(External)
Vent
(Pass-Through)
30-45
3" ➁
6"
4" ➁
60-125
4"
6"
4"
 B-Vent must have 1/4" air gap (OD is 1/2" larger than ID).
➁ Use included vent transition as described in D13.
Combustion Air
Pipe Attached
Outlet Vent
Pipe Extended
Through Box
Table 11.1 - Concentric Vent Pipe Sizes
4.57”
13.33"
18.84"
D10.Place this assembly (the adapter box, vent pipe and
combustion air pipe) through the wall or roof and verify that
the distance requirements as defined in Step D7 are met.
Securely attach the assembly building.
D11.From outside the building, caulk the gap between the
combustion air intake pipe and the building penetration.
D12.Attach the combustion air intake and vent pipe
terminations as follows:
For Vertical Concentric Vent Kits
(refer to Figure 10.1):
• Slide the combustion air cap down over the vent pipe
and fasten it to the combustion air pipe with at least 3
corrosion resistant sheet metal screws.
• Attach the vent cap to the vent pipe using at least
3 corrosion resistant sheet metal screws. Refer to
instruction A12 for connecting terminal to double wall
pipe.
• Caulk the gap between the combustion air cap and the
vent pipe with silicone sealant, or other appropriate
sealants suitable for metal to metal contact and for
temperatures up to 400° F.
For Horizontal Concentric Vent Kits
(refer to Figure 10.2):
• Attach the combustion air intake guard using corrosion
resistant screws at the end of the combustion air intake
pipe to prevent animals and debris from entering.
• Attach the vent cap to the vent pipe using at least 3
corrosion resistant sheet metal screws.
D13.For model sizes 30 and 45, attach the 3" to 4" vent
transitions on the non-concentric side vent and combustion
air connections using 3 corrosion resistant sheet metal
screws.
D14.Install vent pipe and combustion air pipe between unit
heater and concentric vent adapter box as outlined in
“Section A – General Instructions – All Units”.
D15.Once venting is complete, proceed to the section titled
“Installation - Gas Connections”.
6-584.5
11
installation - GAS CONNECTIONS
GAS CONNECTIONS
Figure 12.1 - Recommended Sediment Trap/Manual
Shut-off Valve Installation - Side or Bottom Gas
Connection ➀
WARNING
GAS
SUPPLY LINE
1. All field gas piping must be pressure/leak tested prior to
operation. Never use an open flame. Use a soap solution or
equilavent 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.
GAS
SUPPLY LINE
SEDIMENT
TRAP
➀ Manual shut-off valve is in the “OFF” position when handle is perpendicular to pipe.
1. Purging of air from gas lines should be performed as described in ANSI Z223.1 - latest edition “National Fuel Gas Code”, or in Canada CSA-B149 codes.
2. When leak testing the gas supply piping system, the appliance and its combination gas control must be isolated during any pressure testing in excess of 14" W.C. (1/2 psi).
3. The unit should be isolated from the gas supply piping system by closing its field installed manual shut-off valve.This manual shut-off valve should be located within 6' of the heater.
4. Turn off all gas before installing appliance.
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. 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 CSA-B149.1.
2. 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 Table 12.1 to
determine the cubic feet per hour (CFH) for the type of gas
and size of unit to be installed. Using this CFH value and the
length of pipe necessary, determine the pipe diameter from
Table 12.2. Where several units are served by the same
main, the total capacity, CFH and length of main must be
considered. Avoid pipe sizes smaller than 1/2". Table 12.2
allows for a 0.3" W.C. pressure drop in the supply pressure
from the building main to the unit. 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, make
sure that the unit supply pressure can be met after the 0.3"
W.C. has been subtracted. If the 0.3" W.C. pressure drop is
too high, refer to the Gas Engineer’s Handbook for other gas
pipe capacities.
3. Install a ground joint union with brass seat and a manual
shut-off valve 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 12.1).
4. Provide a sediment trap before each unit in the line where
low spots cannot be avoided. (See Figure 12.1).
5. 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.
12
TO
CONTROLS
PLUGGED
1/8" NPT TEST
GAGE CONNECTION
3"
MIN.
CAUTION
important
MANUAL GROUND
SHUT-OFF JOINT
UNION
VALVE
Table 12.1 - Manifold Pressure & Gas Consumption
NaturalPropane
Model
BTU/Cu. Ft.
SizeSpecific Gravity
1050
0.60
2500No. of
1.53Orifices
Manifold Pressure In. W.C.
3.5
10.0
30
CFH
Gal/Hr. Propane
Sec/cu. ft.
Orifice Drill Size
28.6
126
49
12.0
.33
300
56
2
45
CFH
Gal/Hr. Propane
Sec/cu. ft.
Orifice Drill Size
42.9
84
49
18.0
.50
200
56
3
60
CFH
Gal/Hr. Propane
Sec/cu. ft.
Orifice Drill Size
57.1
63
49
24.0
.66
150
56
4
75
CFH
Gal/Hr. Propane
Sec/cu. ft.
Orifice Drill Size
71.4
50
49
30.0
.83
180
56
5
100
CFH
95.2
Gal/Hr.Propane
Sec/cu.ft.
38
Orifice Drill Size
45
40
1.09
90
55
5
125
CFH
119
Gal/Hr.Propane
Sec/cu.ft.
30
Orifice Drill Size
42
50
1.37
72
53
5
Table 12.2 - Gas Pipe Capacities - Natural Gas ➀ ➁
Pipe
Length (ft) 1/2”
10
132
30
73
20
40
50
60
92
63
56
50
3/4”
520
152
285
190
130
115
105
46
100
38
79
150
31
64
125
43
34
1”
278
70
80
Natural Gas
96
350
245
215
195
1-1/4” 1-1/2”
2”
1050
1600
3050
590
890
1650
730
500
440
400
1100
760
670
610
2100
1450
1270
1150
180
370
560
1050
150
305
460
870
120
250
90
170
72
130
350
275
530
410
380
930
780
710
➀C
apacities in Cubic Feet per Hour through Schedule 40 pipe with maximum
0.3"W.C. pressure drop with up to 14"W.C. gas pressure. Specific gravity is 0.60
for Natural gas and 1.50 for Propane gas.
➁F
or Pipe Capacity with Propane Gas, divide Natural gas capacity by 1.6. Example:
What is the propane gas pipe capacity for 60 feet of 1-1/4" pipe? The Natural gas
capacity is 400 CFH. Divide by 1.6 to get 250 CFH for Propane gas.
6-584.5
installation - ELECTRICAL connections
Blower Curve Models (HDC 60-125 Only)
ELECTRICAL CONNECTIONS
Speeds
warning
Low
1. Disconnect power supply before making wiring connections to prevent electrical shock and 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.
4. Ensure that the supply voltage to the appliance, as indicated on the serial plate, is not 5% greater than rated voltage.
operation
635
65
684
60
741
55
808
50
889
45
988
40
1111
35
0.00
caution
CFM
3. Any original factory wiring that requires replacement must be replaced with wiring material having a temperature rating of at least 105°C.
High
HDC 60
70
Temperature Rise (Deg. F)
2.
Medium
1270
0.10
0.30
0.20
0.40
0.60
0.50
0.70
External Static Pressure (IN. WC)
Ensure that the supply voltage to the appliance, as indicated
on the serial plate, is not 5% less than the rated voltage.
HDC 75
The power to these unit heaters should be protected with a circuit
breaker.
60
926
55
1010
50
1111
45
1235
40
1389
0.00
1587
0.10
0.30
0.20
0.40
0.60
0.50
0.70
External Static Pressure (IN. WC)
HDC 100
Temperature Rise (Deg. F)
65
1140
60
1235
55
1347
50
1481
45
1646
40
1852
35
0.00
2116
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
External Static Pressure (IN. WC)
HDC 125
Temperature Rise (Deg. F)
75
1235
70
1323
65
1425
60
1543
55
1684
50
1852
45
2058
40
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
CFM
When applying a blower equipped unit to a duct system or other
load, consult the performance curves on this page to determine
the air temperature rise for a given motor speed range and static
pressure. Verify that the static pressure on the outlet of the unit
does not exceed the maximum specified for the unit. If static
pressure is too high it must be reduced either by modifications to
the system or using the medium or low motor speed. If the unit
shuts down on high limit during normal operation, a higher motor
speed should be used.
855
CFM
The blowers used on Modine HDC units are direct drive and
equipped with three speed motors. Air temperature rise of the
unit is determined by the speed setting and the amount of static
pressure in the system. Units are normally shipped with motors set
at high speed. Motor speed is changed by connecting the motor
lead for the desired fan speed to the “EAC” or “Blo” terminal of the
control board. Unused motor leads for other speeds are placed on
the “Park” terminals of the board. See the wiring diagram on
page 18.
65
35
Location of thermostat should be determined by heating
requirements and be mounted on an inside wall about 5' above
floor level where it will not be affected by heat from the unit
or other sources, or drafts from frequently opened doors. See
instructions packed with thermostat.
Wiring Adjustments for Blower Motors
794
CFM
All field installed wiring must be done in accordance with the
National Electrical Code ANSI/NFPA 70 – latest edition or
Canadian Electrical Code CSA C22.1 Part 1 or local codes. Unit
must be electrically grounded according to these codes. If any of
the original wire supplied with the heater must be replaced, replace
it with wiring material having a temperature rating of at least
105°C.
Temperature Rise (Deg. F)
70
2315
0.80
External Static Pressure (IN. WC)
6-584.5
13
installation - operation
OPERATION
important
1. To prevent premature heat exchanger failure, observe
heat exchanger tubes. If the tubes become red while
blower and furnace are in operation, check to be sure the
blower has been set to the proper rpm for the application.
Refer to page 13 for Blower Adjustments.
2. Start-up and adjustment procedures must be performed
by a qualified service agency.
Prior to Operation
Although this unit has been assembled and fire-tested at the
factory, the following pre-operational procedures should be
performed to assure proper on-site operation.
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. Remove the side control access panel.
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 correctly and free from obstructions. Before you start use the following steps to verify that the venting system is adequately sized:
a. Seal any unused openings in the venting system.
b. Inspect the venting system for proper size and horizontal
pitch, as required in the National Fuel Gas Code ANSI
Z223.1 (NFPA 54) or CSA B149.1 Installation Codelatest edition and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion
and other deficiencies, which could cause an unsafe
condition.
c. In so far as practical, close all building doors and
windows and all doors between the space in which
the appliance(s) connected to the venting system are
located and other spaces of the building. Turn on clothes
dryers and any exhaust fans such as range hoods and
bathroom exhausts, so they shall operate at maximum
speed. Do not operate a summer exhaust fan. Close
fireplace dampers.
d. Follow the lighting instructions. Place the appliance
being inspected in operation. Adjust thermostat so that
the appliance will operate continuously.
e. After it has been determined that each appliance
connected to the venting system properly vents when
tested as outlined above, return doors, windows,
exhaust fans, fireplace dampers and any other gasburning appliance to their previous conditions of use.
f. If improper venting is observed during any of the above
tests, the venting system must be corrected.
5. Check to see that there are no obstructions to the intake and discharge of the unit.
6. Check fan clearance. Fan should not contact casing when
spun by hand.
7. Check to make sure that all filters are in place and that
they are installed properly according to direction of air flow
(if applicable).
8. Perform a visual inspection of the unit to make sure no damage has occurred during installation.
9. Check that all horizontal deflector blades are open a minimum of 30° as measured from vertical.
10. Turn on power to the unit at the disconnect switch.
14
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.
12. Check the blower wheel for proper direction of rotation when compared to the air flow direction arrow on the blower housing (if applicable). Blower wheel rotation, not air movement, must be checked as some air will be delivered through the unit with the blower wheel running backwards.
13. For blower units, check the blower speed (rpm). Refer to Blower Adjustments for modification.
14. Check the motor speed (rpm).
15. Check the motor voltage.
16. Check the motor amp draw to make sure it does not exceed the motor nameplate rating.
17. 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.
18. Open the field installed manual gas shut-off valve.
19. Place the manual main gas valve on the combination gas valve in the "On" position. Call for heat with the thermostat.
20. Check to make sure that the main gas valve opens. Check the
manifold gas pressure (See Main Gas Adjustment) while the
supply fan blower is operating.
21. Check to insure that gas controls sequence properly (See Control Operating Sequence). If you are not familiar with
the unit’s controls (i.e. combination gas control), refer to the
control manufacturer’s literature supplied with the unit.
22. Once proper operation of the unit has been verified, remove any jumper wires that were required for testing.
24. Replace the side control access panel.
Main Burner Adjustment
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 unit heater in accordance
with the input rating on the serial plate. Actual input should be
checked and necessary adjustments made after the unit heater 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.
Measuring the manifold pressure is done at the outlet pressure
tap of the gas valve.
To Adjust the Manifold Pressure
1. Move the field installed manual shut-off valve to the “OFF”
position.
2. Remove the 1/8" pipe plug from the outlet pressure tap on
the gas valve and attach a water manometer of “U” tube
type which is at least 12" high.
3. Move the field installed manual gas shut-off valve to the
“ON” position.
4. Create a high-fire call for heat from the thermostat.
5. Refer to Table 12.1 to determine the correct high fire
manifold pressure for the gas type of the unit. Adjust the
main gas pressure regulator spring to achieve the proper
manifold pressure (for location, see the combination gas
control literature supplied with unit).
6. After adjustment, move the field installed manual shut-off
valve to the “OFF” position and replace the 1/8" pipe plug.
7. 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.
6-584.5
CONTROL OPERATING SEQUENCE / unit components
CONTROL OPERATING SEQUENCE
Upon a call for heat from the thermostat, power is supplied to
the power exhauster motor. The unit will go through a purge
period and then the direct spark igniter will be energized. At the
same time, the main valve in the combination control valve will
open to allow gas to flow to the burners. If the fan motor has
not already started it will start shortly. If a flame is not sensed
for any reason the main valve will close and there will be a
short purge period before ignition is tried again. If the flame is
not sensed after four tries there will be at least a one hour wait
before ignition is tried again.
Figure 15.1 - Major Gas, Electrical Service, Safety and Other Components
➉
➃
➅
➇
➀
➁
➂
1. Power Exhauster
2. Pressure Switch
3. Integrated Direct Spark Control Board
4. Combination Gas Control
➆
➈
➄
5. Control Transformer
6. Flame Sensor (hidden)
7. Flame Rollout Switch
8. Auto Reset Limit Control (hidden)
9. Direct Spark Igniter (hidden)
10. Manual Reset Control (hidden,
propeller 100-125 only)
Figure 15.2 - Unit Heater Rear View
Mounting Brackets
Fingerproof Fanguard
Gas Pipe
Fan Motor
Flame
Sight Glass
Vent Pipe Connection
Electrical Access
Holes
Combustion
Air Inlet Pipe
Connection
Access Panel with
Lighting / Operating
Instructions
Control Options
ControlService
Thermostat
Type ofModel
Control Description
Code No.VoltageVoltageGasSize
Single-Stage, Direct Spark Ignition, 100% Shut-Off with Continuous Retry - Utilizes a single-stage combination gas control with ignition control.
Gas is lit with a direct spark igniter on call for heat.
11 115V 24V natural30-125
Two-Stage, Direct Spark Ignition, 100% Shut-Off with Continuous Retry - Utilizes a two-stage combination gas control with built-in ignition control.
Firing rate is 100% and 50% of full rated input. Gas is lit with a direct spark igniter on call for heat.
21 115V
24V propane30-125
12
24V
115V
22 115V
6-584.5
natural
75-125
24V propane75-125
15
dimensions / general performance data - hds/HDC
13.5" BETWEEN 3/8"-16 MOUNTING HOLES
(MODEL SIZES 100 AND 125 ONLY)
14.9" BETWEEN 3/8"-16 MOUNTING HOLES
(MODEL SIZES 100 AND 125 ONLY)
10.0"
3.5"
Dimensions (inches)
60
75
100/125
A
26.8
26.8
26.8
26.8
35.5
26.8
26.8
35.5
B
12.2
12.2
18
18
20.5
18
18
20.5
C
16.5
16.5
16.5
16.5
22
16.5
16.5
22
D
14.9
14.9
14.9
14.9
22.5
14.9
14.9
22.5
E
10.1
10.1
15.9
15.9
18.4
15.9
15.9
18.4
F
7.25
7.25
10.75
10.75
14
10.75
10.75
14
G
18.5
18.5
18.5
18.5
–
18.5
18.5
–
H
7.6
7.6
7.835
7.835
8.4
7.835
7.835
8.4
2.74
2.74
3.15
3.15
3.87
3.15
3.15
3.87
L
3.19
3.19
5.55
5.55
10.73
5.55
5.55
10.73
Vent and Combustion Air
Connector Size
3
3
4
4
4
4
4
4
Fan or Blower Diameter
10
10
14
14
18
9-7
9-7
10 - 10
Approx. Weight (lbs.)
55
60
80
85
125
92
97
125
.00
1.10
Mounting Bracket Slot Locations
HDS/HDC
30-75
33.50
35.00
31.50
75
100
13.50
9.50
29.50
11.50
25.10
26.20
27.50
60
7.50
23.10
25.50
45
5.50
21.10
23.50
30
3.50
19.10
Propeller Model Size - HDS
.00
1.50
17.10
HDS/HDC
100/125
(accessory)
9.10
HDS/HDC
30-75
21.50
11.50
9.50
7.50
5.50
3.50
.00
1.50
Performance
13.50
7.10
5.10
3.10
.00
1.10
1” - angle, mounting brackets are slotted to accommodate joists on 16” or 24” centerlines.
HDS/HDC
100/125
(accessory)
21.10
41.5
K
25.50
44.5
32.5
19.10
35.5
32.5
23.50
35.5
31
17.10
43
25
21.50
34.5
25
9.10
34.5
22
7.10
34.5
22
5.10
34.5
3.10
I
J
Blower Model Size - HDC
125
Btu/Hr Input
30,000 45,000 60,000 75,000 100,000 125,000
Btu/Hr Output
24,000 36,000 48,000 60,000 80,000 100,000
60
75
100
125
60,000
75,000
100,000
125,000
48,000
60,000
80,000
100,000
Entering Airflow (CFM)
505
720
990
1160
1490
1980
635-1111 794-1389 1140-2116 1235-2058
Outlet Velocity (FPM)
523
749
653
769
565
747
437-726
546-908
443-781
488-773
45-75
Air Temperature Rise (°F)
44
46
45
48
50
47
40-70
40-70
35-65
Max. Mounting Height (ft.)
10
10
12
14
12
16
7-13
7-16
8-19
8-17
Heat Throw (ft.)
25
27
36
38
42
56
20-45
24-57
27-68
27-59
Motor Data
# of Speeds
1
1
1
1
1
1
3
3
3
3
Horsepower
1/15
1/15
1/12
1/12
1/12
1/8
1/4
1/3
1/2
1/2
RPM
1550
1550
1625
1625
1050
1550
Type
S.P.
S.P.
P.S.C. P.S.C.
S.P.
P.S.C.
P.S.C.
P.S.C.
P.S.C.
Amps
2.4
2.4
1.2
1.2
2.7
2.2
5.4
7.1
9.5
9.5
3.7
3.7
2.5
2.5
4.7
4.2
6.4
8.1
11.5
11.5
Total Unit Amps
16
Max 1100 Max 1100 Max 1100
6-584.5
Max 1100
P.S.C.
33.50
35.00
100/125
25.10
26.20
75
31.50
60
29.50
45
23.10
Blower Model Size - HDC
30
27.50
Propeller Model Size - HDS
Dimension
service / maintenance / troubleshooting
warning
When servicing or repairing this equipment, use only factoryapproved service replacement parts. A complete replacement
parts list may be obtained by contacting the factory. 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.
CAUTION
1. Service or repair of this equipment must be performed by
a qualified service agency.
2. Do not attempt to reuse any mechanical or electrical controllers which have been wet. Replace defective controller.
To check most of the Possible Remedies in the troubleshooting
guide listed in Table 17.1, refer to the applicable sections of the
manual.
General Maintenance
The unit and venting system must be checked once a year by
a qualified service technician.
All installation and service of these units must be
performed by a qualified installation and service agency.
Before any service, be sure to turn off gas at the
manual shut-off valve ahead of the combination
gas control and turn off all electric power to
the heater.
1.
2.
Service air moving components annually.
a. Check fan for fit on motor shaft and for damage to blades.
Keep unit free from dust, dirt, grease, and foreign matter, paying particular attention to:
a. Combustion air inlets.
b.Burners and burner orifices. Turn off gas ahead of the
combination gas control and shut off electric power to
the heater. Remove the access panel, open the union
on the gas line, and disconnect the igniter and sensor
wires. Remove the screws that attach the burner tray to
the header plate and remove the burner tray and manifold
assembly from the heater. Carefully clean the burners
with a wire brush or other suitable means.
Replace any damaged or deteriorating burners or orifices.
Install the burner assembly back on to the header making
certain that all screws, pipes and electrical connections are
tight.
CAUTION: Be careful when handling the igniter and flame
sensor.
1. Inspect the flame sensor and igniter for deterioration
and/or cracks.
2.Verify that the burners are touching each other at the
carryover points. This will ensure flame carryover from
burner to burner.
c. Clean exterior of heat exchanger tubes.
d. Fan blade.
3. Check wiring for possible loose connections.
4.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. See control instruction sheets furnished
separately with the unit heater.
5.Power exhaust assembly/motors – The power exhaust
motor bearings have been lubricated for long life and do not
require additional lubrication. In dirty atmosphere, it may be
desirable to clean the motors and blower housing and blow
out the cooling air passages of the motor with compressed air.
6. Perform periodic cleaning of inlet and vent terminal screens.
Table 17.1 - Troubleshooting
TROUBLEPOSSIBLE CAUSE POSSIBLE REMEDY
Unit does nothing
1. Power supply is off
1.Turn on main power
2. No 24V power to thermostat
2a.Check control transformer
b.If failed transformer - check thermostat wire gage and length
3. Thermostat malfunction
3a.Verify wire connections to R&W terminals only
b.Check / replace thermostat
4. LED flashes 4. Check LED flash code
5. Blown fuse on control board
5.Replace fuse
6. Defective control
6.Replace control
LED light off or
1. Blown fuse on control board
1.Replace fuse
flashing
2. Multiple causes
2. Control board LED flash codes vary with control type. A decal is installed in the unit giving a brief description of the applicable codes for your heater. For more detail, see the control board data sheet included with the unit.
Unit starts but does not ignite
1. Main gas is off
2. Air in gas line
3. Main or manifold gas pressure
4. Check gas valve switch
1.
2.
3.
4.
Unit goes through cycle but the burners go out
in less then 10 seconds
1. Reversed main power polarity 2. Unit not grounded
3. Flame not sensed
1. Black wire - HOT, White wire - NEUTRAL, Green wire - GROUND
2. Ground unit and verify quality of ground connection
3. Check flame sense probe and connection
Air circulating fan inoperable
1. Loose connections
2. Defective control board
3. Defective fan motor 1. Check all connections
2. Check control board data sheet and function
3. Check fan motor
Open manual gas valve
Purge gas line
Set gas pressures per manual instructions
Set gas valve switch to “ON” position
6-584.5
17
unit wiring
Wiring Diagram Selection
Since internal or factory wiring may vary depending on
the controls manufacturer, the wiring diagrams must be
appropriately selected with the proper gas valve and ignition
type. The following wiring diagram represents a unit equipped
with a single stage gas valve, and direct spark ignition.
18
FLAME
SENSOR
GAS
VALVE
GR, (G)
GND
L2, (WH) 115V/60HZ/1Ø POWER
L1, (BK) CIRCUIT BREAKER (BY OTHERS)
SPARK
IGNITOR
O
UT
LABEL
L1, (BK)
BL
WH
L2, (WH)
CALL FOR FAN
CALL FOR HEAT
REFER NOTE 7
PE
MOTOR
BK
IGNITION
CONTROL
SWITCH
PARK
LOW VOLTAGE
THERMOSTAT
(BY OTHERS)
Y
PARK
G
EAC
L1
R
PRESSURE
SWITCH
FAN
MOTOR
L1
W
IND
C
PIN 5
Y
N
E
U
T
R
A
L
1 4 7
2 5 8
3 6 9
Y
PIN 6
WH
SEC
BK
120
COM
COM
XFMR
24
R
R
Y
FLAME ROLLOUTS
(SEE NOTE 6)
LIMIT CONTROL
(SEE NOTE 5)
LIMIT
CONTROL
R
SINGLE STAGE, DIRECT SPARK IGNITION,
SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
WHITE ROGERS
GAS VALVE
M
GND
115V/60HZ/1Ø POWER
L2, (WH) CIRCUIT BREAKER (BY OTHERS)
L1, (BK)
FLAME
SENSOR
COM COM
HI
SPARK
IGNITOR
SWITCH
LOW VOLTAGE
THERMOSTAT
(BY OTHERS)
O
UT
LABEL
G
PARK
W1
PARK
W2
HEAT
L1, (BK)
Y
WH
L2, (WH)
BL
CALL FOR FAN
1ST STAGE
2ND STAGE
REFER NOTE 7
PE
MOTOR
IGNITION
CONTROL
BK
TWO STAGE, DIRECT SPARK IGNITION, 100% SHUTOFF,
MULTIPLE RETRY W/AUTO RESET FROM LOCKOUT
SINGLE STAGE, DIRECT SPARK IGNITION, 100% SHUTOFF,
MULTIPLE RETRY W/AUTO RESET FROM LOCKOUT
Figure 18.1 - Unit Heater Wiring Diagram (Single and Two Stage, Direct Spark Ignition)
FAN
MOTOR
L1
C
R
IND
PRESSURE
SWITCH
WH
PIN 8
Y
FS
1 4 7
2 5 8
3 6 9
Y
24V
COM
BK
120
COM
24
R
LIMIT
CONTROL
LIMIT CONTROL
(SEE NOTE 5)
R
R
Y
FLAME ROLLOUTS
(SEE NOTE 6)
5H0799630002 REV M
TWO STAGE, DIRECT SPARK IGNITION,
100% SHUT-OFF, MULTIPLE RETRY W/ AUTO RESET FROM LOCKOUT
6-584.5
XFMR
serial & model number / replacement parts
Model Number Designations (Remove access cover to locate)
HDS 45
A
S
01
1
1
S
B
A
HDS - Tubular Separated
Combustion Propeller Unit
HDC - Tubular Separated
Combustion Blower Unit
N
Factory Installed Option Digit
N - None
Future
A - All
MBH Input
30 - 30,000 Btu/hr input
45 - 45,000 Btu/hr input
etc.
Dev Digit
Fan Guard Digit
N - None (all blower models)
F - Fingerproof
Heat Exchanger Type
A - Aluminized
S - Stainless Steel
Gas Valve
1 - Single Stage
2 - Two Stage
Ignition Type
S - Direct Spark
Power Code
01 - 115 volt, 60 hertz,
single phase
Gas Type
1 - NG
2 - LP
Serial Number Designations (Remove access cover to locate)
CONTROL SUPPLIER
01 - RobertShaw 09 - White Rogers
05 - Honeywell
17 - United Tech
08 - Fenwal
GAS VALVE SUPPLIER
01 - RobertShaw
05 - Honeywell
09 - White Rogers
SPO NUMBER
YEAR OF MANUFACTURE
S 3 0 0 10 0 1 7 0 9 1 0 9 8 1 2 3 4 10 0 0 0
SERIAL NUMBER
UNIT SERIES
00 - Original
01 - Modified
SPO MODEL
MOTOR SUPPLIER
05 - Universal 18 - Franklin
15 - Marathon 38 - A.O. Smith
FAN VENDOR CODE
20 - Morrison 01 - Revcor
10 - Lau
08 - Brookside
19 - Air Drive
WEEK OF
MANUFACTURE
Same as Requirements
Planning Shop Calendar
SEQUENTIAL NUMBER
Number varies from 0000 to 9999.
Each unit within same week of
manufacture is to have unique number.
Replacement Parts
When requesting parts please contact your local representative. Please have full model and serial number available. If you require
assistance in locating your representative, please call the number located on the back page.
Figure 19.1 - Common Replacement Parts
Model
Size
Power
Exhauster
Limit
Control
Switch
DE Please refer to unit mounted parts
(The list is FOURNISSEUR
subject to change.
ROBINET DE GAZ
FOURNISSEUR DU RÉGULATEUR
01Flame
- RobertShaw 09 - White Rogers
01 - RobertShaw
Combination Gas
Ignition
05 - Honeywell Trans17 - United Tech
Pressure 05 - Honeywell
Valve (1 Stage)
Roll-out
Igniter
Control
08
- Fenwal
09
White
Rogers
Switch
former
ANÉE DE FABRICATION
Switch
(1 Stage)
HDS 30NUMÉRO
5H79402
DE 5H75769-1
5H75002-7 5H75029 5H79441-1 5H79636 5H79749 Code 11
5H79751
Code 21
5H79869
HDS 45
5H75002-7 5H75029 5H79441-2
5H79636 5H79749 5H79751
5H79869
SÉRIE
5H79402
Combination Gas
Ignition
Valve (2 Stage)
Control
SPO NUMÉRO
(2 Stage)
Code 22
Code 12
S 3 0 0 10 0 1 7 0 9 1 0 9 8 1 2 3 4 10 0 0 0
5H75769-1
HDS 60
5H79402
SPO Modèle5H75769-2
5H75002-7 5H75029
5H79441-3 CONFIGURATION
HDC 60
5H79402
5H75769-4
MOTEUR FOURNISSEUR
5H75002-7 5H75029 5H79441-3 HDS 75
list for most up-to-date list.)
01 - Modifié
5H79636 SEMAINE
5H79749
DE 5H79636 FABRICATION
5H79749 NA
NA
NA
NA
5H79751 NUMÉRO
5H79869
NA
SÉQUENTIAL
NA
NA
Number varies from 0000 to 9999.
5H79751
5H79869
NA
NA
NA
18 - Franklin
5H75769-2
CODE DU5H75029
FOURNISSEUR
5H75002-7
5H79441-3 5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
5H79402
5H75769-2
5H75002-7
5H75029
5H79441-3 20 - Morrison
01 - Revcor
5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
HDS 100 5H79795
5H75769-2
5H75002-4
5H75029 5H79441-9
19 - Air Drive
5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
HDC 100 5H79795
5H75769-3
5H75002-4 5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
HDC 75
05
- Universal
5H79402
15 - Marathon
00 - Original
NA
NA
38 - A.O. Smith
VENTILATEUR
10 - Lau
08 - Brookside
5H75029 5H79441-9
HDS 125 5H79795
5H75769-1
5H75002-4 5H75029 5H79441-9
5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
HDC 125 5H79795
5H75769-2
5H75002-4 5H75029 5H79441-9
5H79636 5H79749 5H79751
5H79869
5H79804
5H79748
5H79871
6-584.5
19
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’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
Component
Applicable Models
Heat Exchangers
Gas-Fired Units
Heat Exchangers
Low Intensity Infrared Units
Compressors
Condensing Units for Cassettes
Burners
Low Intensity Infrared Units
Other
Components excluding Heat Exchangers,
Coils, Condensers, Burners, Sheet Metal
Heat Exchangers/Coils
Indoor and Outdoor Duct Furnaces and
System Units, Steam/Hot Water Units, Oil-Fired
Units, Electric Units, Cassettes, Vertical Unit
Ventilators, Ventilators, Geothermal Units
Compressors
Vertical Unit Ventilators, Ventilators, Geothermal Units
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
The above referenced 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”
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
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
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
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
© Modine Manufacturing Company 2014
Commercial Products Group
Modine Manufacturing Company
1500 DeKoven Avenue
Racine, WI 53403
Phone: 1.800.828.4328 (HEAT)
www.modinehvac.com
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