
90+ SINGLE STAGE GAS FURNACE DIRECT OR NON-
DIRECT VENT
Category IV Furnace
*9U HX Upflow/Horizontal * Denotes Brands (C, H, T)
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories
when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.
Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations.
Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and
attached to the unit. Consult local building codes, the current editions of the National Fuel Gas Code (NFCG) NFPA 54/ANSI
Z223.1, and the National Electrical Code (NEC) NFPA 70.
In Canada refer to the current editions of the National standards of Canada CAN/CSA-B149.1 and .2 Natural Gas and Propane
Installation Codes, and Canadian Electrical Code CSA C22.1.
Recognize safety information. This is the safety-alert symbol /b,. When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand these signal words; DANGER, WARNING, and CAUTION. These
words are used with the safety-alert symbol. DANGER identifies the most serious hazards which will result in severe personal
injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe
practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which
will result in enhanced installation, reliability, or operation.
INSTALLER: Affix these instructions
on or adjacent to the furnace.
®
International Comfort Products, LLC Table of Contents
Lewisburg, TN 37091 U.S.A.
1. Safe Installation Requirements ................... 4
2. Installation .................................. 5
3. Combustion & Ventilation Air .................... 9
4. Vent & Combustion Air Piping ................... 13
5. Concentric Vent Termination .................... 30
6. Gas Supply and Piping ........................ 32
O CARBON MONOXIDE POISONING AND FIRE
Failure to follow this warning Failure to follow this warning could result in
could result in personal injury personal injury, death, and/or property dam-
and/or death, age.
ELECTRIC SHOCK HAZARD HAZARD
Turn Off All Power Before This furnace is not designed for use in mobile
Servicing. homes, trailers or recreational vehicles.
Portions of the text and tables are reprinted from NFPA 54 / ANSI Z223,1-2006_% with permission of National Fire Protection Association, Quincy, MA 02269 and American Gas Association
Washington DC 20001. This reprinted material is not the complete and official position of the NFPA or ANSi on the referenced subject which is represented only by the standard in its
7. ElectricalWiring ............................ 36
8.DuctworkandFilter .......................... 37
9. ChecksandAdjustments...................... 39
10.FurnaceMaintenance........................ 41
11.SequenceofOperation& Diagnostics............ 42
TechnicalSupport ............................. 44
CONSUMER: Retain these
instructions for future reference.
t_nfirtl_,
Printedin U.S.A. 440 01 1050 06 Feb 2009
Specifications are subject to change without notice.

Required Notice for Massachusetts Installations
Important
The Commonwealth of Massachusetts requires compliance with regulation 248 CMR as follows:
5.08: Modifications to NFPA-54, Chapter 10
2) Revise 10.8.3 by adding the following additional requirements:
(a)
For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet
above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied:
1.
INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment,
the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on
the floor level where the gas equipment is to be installed, in addition, the installing plumber or gasfitter shall observe that a battery operated or
hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of qualified license
professionals for the installation of hard wired carbon monoxide detectors.
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period
of thirty (30) days to comply with the above requirement; provided, however, that during said thirty (30) day period, a battery operated
carbon monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall
comply with NFPA 720 and be ANSl/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight (8)
feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The sign
shall read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS".
4. INSPECTION. The state of local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248
CMR 5.08(2)(a) 1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a) 1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current edition of NFPA 54 as adopted by the
Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or
structure used in whole or in part for residential purposes.
(c)
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product Approved side wall
horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by
the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d)
MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a Product Approved
side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies "special venting systems", the
following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions for that system shall include a parts list and
detailed installation instructions.
(e)
A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions, all parts
lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of the installation.
For questions regarding these requirements, please contact the Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gas
Fitters, 239 Causeway Street, Boston, MA 02114. 617-727-9952
440 01 1050 06 Printed in U.S.A.
Specifications are subject to change without notice.

START-UP CHECK SHEET
For 90+ Furnace
(This sheet is optional. Keep this page for future reference.)
Date of Start-Up:
Dealer Name:
Address:
City, State(Province), Zip or Postal Code:
Phone:
Owner Name:
Address:
City, State(Province), Zip or Postal Code:
Model Number:
Serial Number:
Setup Checks
Check the box when task is complete
Calculated Firing Rate:(See Checks and Adjustments
Section)
Heating Check
Measured Line Pressure when Firing Unit:
Measured Manifold Gas Pressure:
Temperature of Supply Air:
Temperature of Return Air:
Temperature Rise (supply-return temperature): (o)__
In Rise (see furnace rating plate)? (o)__
Static Pressure (Ducts): Supply Air Return __
Which blower speed tap is used? (Heating)
Optional Check: CO ? CO2 ?
Cooling Check
Temperature of Supply Air:
(°)m
(°)m
(°)m
All Electrical Connections Tight?
Have hoses been relocated for furnace application
(upflow/horizontal)?
Condensate Drain Connected?
Condensate Drain Trapped?
Manual Gas Shut-Off Upstream of Furnace/Drip-Leg?LU
Gas Valve turned ON?
Type of Gas: Natural: Lj
Filter Type and Size:
44001 105006
Propane: Lj
Specifications are subjectto change without notice.
Temperature of Return Air:
Temperature Difference:
Static Pressure (Ducts) cooling: Supply Air
Blower Speed Tap used for cooling:
Dealer Comments:
(o)__
(o)__
Return

1. Safe Installation Requirements
FIRE, EXPLOSION, AND ASPHYXIATION HAZARD
Improper adjustment, alteration, service,
maintenance or installation could cause personal
injury, death and/or property damage,
Installation or repairs made by unqualified persons
could result in hazards to you and others,
Installation MUST conform to local codes or, in the
absence of local codes, with codes of all
governmental authorities having jurisdiction,
The information contained in this manual is
intended for use by a qualified service agency that
is experienced in such work, is familiar with all
precautions and safety procedures required in
such work, and is equipped with the proper tools
and test instruments,
NOTE: This furnace is design-certified by the CSA International
(formerly AGA and CGA) for installation in the United States and
Canada. Refer to the appropriate codes, along with this manual,
for proper installation.
• Use only the type of gas approved for this furnace (see
Rating Plate on unit). Overfiring wilt result in failure of heat
exchanger and cause dangerous operation. (Furnaces
can be converted to Propane gas with approved kit.)
• Install this furnace only in a location and position as
specified in "Installation" of these instructions.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury and/or death.
Do NOT install this furnace in DOWNFLOW ap-
plications.
RISQUE D'EMPOISONNEMENT PAR MONOXYDE
DE CARBONE
Si les conseils de cette avertissement ne sont pas
suivi, cela peut entrainer des blessures et/ou la
mort.
Ne pas installer cette fournaise avec un debit DE-
SCENDANT.
• Provide adequate combustion and ventilation air to the
furnace as specified in "Combustion and Ventilation Air" of
these instructions.
• Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system only, as
specified in "Vent and Combustion Air Piping" of these
instructions.
• Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifically for
the detection of leaks to check all connections, as
specified in "Gas Supply and Piping, Final Check" of these
instructions.
Specifications are subject to change without notice.
Always install furnace to operate within the furnace's
intended temperature-rise range with a duct system which
has an external static pressure within the allowable range,
as specified in "Technical Support Manual" of these
instructions. See furnace rating plate.
• When a furnace is installed so that supply ducts carry air
circulated by the furnace to areas outside the space
containing the furnace, the return air shall also be handled
by a duct(s) sealed to the furnace casing and terminating
outside the space containing the furnace.
• A gas-fired furnace for installation in a residential garage
must be installed as specified in "Installation" of these
instructions.
This furnace is not to be used for temporary heating of
buildings or structures under construction.
This furnace is NOT approved for installation in
mobile homes, trailers or recreation vehicles.
Seal around supply and return air ducts.
Install correct filter type and size.
Unit MUST be installed so electrical components are
protected from direct contact with water.
SafetyRules
Your unit is built to provide many years of safe and dependable
service providing it is properly installed and maintained. However,
abuse and/or improper use can shorten the life of the unit and
create hazards for you, the owner.
A,
The U.S. Consumer Product Safety Commission encourages
installation of carbon monoxide alarms. There can be various
sources of carbon monoxide in a building or dwelling. The
sources could be gas-fired clothes dryers, gas cooking
stoves, water heaters, furnaces, gas-fired fireplaces, wood
fireplaces.
Carbon monoxide can cause bodily injury and/or death.
Carbon monoxide or "CO" is a colorless and odorless gas
produced when fuel is not burned completely or when the
flame does not receive sufficient oxygen.
Therefore, to help alert people of potentially dangerous carbon
monoxide levels, you should have a commercially available
carbon monoxide alarm that is listed by a nationally
recognized testing agency in accordance with Underwriters
Laboratories Inc. Standard for Single and Multiple Station
Carbon Monoxide Alarms, ANSl/UL 2034 or the CSA 6.19-01
Residential Carbon Alarming Devices installed and
maintained in the building or dwelling concurrently with the
gas-fired furnace installation (see Note below). The alarm
should be installed as recommended by the alarm
manufacturer's installation instructions.
B,
There can be numerous sources of fire or smoke in a building
or dwelling. Fire or smoke can cause bodily injury, death,
and/or property damage. Therefore, in order to alert people of
potentially dangerous fire or smoke, you should have fire
extinguisher and smoke alarms listed by Underwriters
Laboratories installed and maintained in the building or
dwelling (see Note below).
Note: The manufacturer of your furnace does not test any alarms
and makes no representations regarding any brand or type
of alarms.
C,
To ensure safe and efficient operation of your unit, you should
do the following:
1.
Thoroughly read this manual and labels on the unit. This
will help you understand how your unit operates and the
hazards involved with gas and electricity.
44001 105006

2,
Do not use this unit if any part has been under water.
Immediately call a qualified service technician to inspect the
unit and to replace any part of the control system and any gas
control which has been under water.
3. Never obstruct the vent grilles, or any ducts that provide
air to the unit. Air must be provided for proper combustion
and ventilation of flue gases.
FrozenWaterPipeHazard
WATER DAMAGE TO PROPERTY HAZARD
Failure to follow this caution may result in property
damage.
Do not leave your home unattended for long periods
during freezing weather without turning off water
supply and draining water pipes or otherwise
protecting against the risk of frozen pipes and
resultant damage.
Your furnace is designed solely to provide a safe and comfortable
living environment. The furnace is NOT designed to ensure that
water pipes will not freeze. It is equipped with several safety
devices that are designed to turn the furnace off and prevent it from
restarting in the event of various potentially unsafe conditions.
If your furnace remains off for an extended time, the pipes in your
home could freeze and burst, resulting in water damage.
If the structure wilt be unattended during cold weather you should
take these precautions.
2. Installation
1,
Turn off the water supply to the structure and drain the water
lines if possible and add an antifreeze for potable water to
drain traps and toilet tanks. Open faucets in appropriate
areas.
-or-
2,
Have someone check the structure frequently during cold
weather to make sure it is warm enough to prevent pipes
from freezing. Instruct them on a service agency to call to
provide service, if required.
-or-
3,
Install a reliable remote sensing device that will notify
somebody of freezing conditions within the home.
WinterShutdown
If you go away during the winter months and do not leave the heat
on in your home, the plastic transition box and the condensate trap
on the furnace must be protected from freeze damage.(See
Figure 10 through Figure 17)
1. Disconnect the 5/8"(15.9mm) OD rubber hose from the vent
drain fitting that is located downstream of the combustion
blower. Insert a funnel into the hose and pour four(4) ounces
of sanitary type (RV) antifreeze into the condensate trap.
Reconnect the 5/8" (15.9mm) OD rubber hose to the stub on
the vent drain fitting. Secure with the hose clamp.
2. Disconnect the 3/4" (19.1mm) OD rubber hose from the
condensate trap. Insert a funnel into the hose and and pour
four(4) ounces of sanitary type (RV) antifreeze into the
plastic Transition box. Squeeze the hose together near the
end and quickly reconnect the 3/4" (19.1mm) OD rubber
hose to the stub on the condensate trap. Secure with the
hose clamp.
When you return home, your furnace will be ready to start, as it is
not necessary to drain the antifreeze from the furnace.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
This furnace can NOT be common vented or
connected to any type B, BW or L vent or vent
connector, nor to any portion of a factory-built or
masonry chimney. If this furnace is replacing a
previously common-vented furnace, it may be
necessary to resize the existing vent and chimney to
prevent oversizing problems for the other
remaining appliance(s). See Venting and Combus-
tion Air Check in Gas Vent Installation section. This
furnace MUST be vented to the outside.
Location and Clearances
1. Refer to Figure1 for typical installation and basic
connecting parts required. Refer to Figure 4 for typical
horizontal direct vent installation and basic connecting parts
required. Supply and return air plenums and duct are also
required.
2. If furnace is a replacement, it is usually best to install the
furnace where the old one was. Choose the location or
evaluate the existing location based upon the minimum
clearance and furnace dimensions (Figure 2).
Typical Upflow Installation
Aluminumor non-rustingshieldrecommended.
"8" (203.2mm)Min.
20' (6.1m)Max.
in same ...............>,1
tainedtemperatures0°F (-17° C)andbelowfor24ormoreconsecutivehours),
(SeeVentTerminationShieldingfordimensions).
,_ Couplingon endsof
i< ,...... exhaust pipe. Total
25-73-33
44001 105006
Specifications are subject to change without notice.

CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Do NOT operate furnace in a corrosive atmosphere
containing chlorine, fluorine or any other damaging
chemicals, which could shorten furnace life.
Refer to Combustion & Ventilation Air section,
Contaminated Combustion Air for combustion air
evaluation and remedy.
FROZEN AND BURST WATER PIPE HAZARD
Failure to follow this caution may result in property
damage.
Special precautions MUST be made if installing
furnace in an area which may drop below freezing.
This can cause improper operation or damage to
equipment. If furnace environment has the potential
of freezing, the drain trap and drainline must be
protected. The use of electric heat tape or RV
antifreeze is recommended for these installations.
(See "Condensate Trap Freeze Protection Section")
Do NOT operate furnace in a corrosive atmosphere
containing chlorine, fluorine or any other damaging
chemicals. Refer to Combustion & Ventilation Air section,
Contaminated Combustion Air.
InstallationRequirements
5,
Maintain clearance for fire safety and servicing. A front
clearance of 24"(609.6mm) required and 30" (762mm)
recommended for access to the burner, controls and filter.
See clearance requirements in Figure 2.
6.
Use a raised base if the floor is damp or wet at times.
7.
Residential garage installations require:
Burners and ignition sources installed at least 18" above the
floor.
Furnace must be located or physically protected from
possible damage by a vehicle.
8.
If the furnace is to be suspended from the floor joists in a
basement or a crawl space or the rafters in an attic, it is
necessary to use steel pipe straps or an angle iron frame to
attach the furnace. These straps should be attached to the
furnace with sheet metal screws and to the rafters or joists
with bolts. The preferred method is to use an angle iron frame
bolted to the rafters or joists.
9,
Local codes may require a drain pan under the entire furnace
and condensate trap when the furnace is installed in attic
application.
This furnace may be used for construction heat provided that all
the following conditions are met:
The furnace is permanently installed with all electrical
wiring, piping, venting and ducting installed according to
these installation instructions. A return air duct is provided,
sealed to the furnace casing, and terminated outside the
space containing the furnace. This prevents a negative
pressure condition as created by the circulating air blower,
causing a flame rotlout and/or drawing combustion products
into the structure.
• The furnace is controlled by a thermostat. It may not be "hot
wired" to provide heat continuously to the structure without
thermostatic control.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury and/or death.
Do NOT install this furnace in DOWNFLOW ap-
plications.
RISQUE D'EMPOISONNEMENT PAR MONOXYDE
DE CARBONE
Si les conseils de cette avertissement ne sont pas
suivi, cela peut entrainer des blessures et/ou la
mort.
Ne pas installer cette fournaise avec un debit DE-
SCENDANT.
1,
Install furnace level.
2.
This furnace is NOT to be used for temporary heat of buildings
or structures under construction.
3.
Install the vent pipes as short as practical. (See Gas Vent
Installation section).
4.
Do NOT install furnace directly on carpeting, tile or other
combustible material other than wood flooring.
Clean outside air is provided for combustion. This is to
minimize the corrosive effects of adhesives, sealers and
other construction materials. It also prevents the
entrainment of drywall dust into combustion air, which can
cause fouling and plugging of furnace components.
The temperature of the return air to the furnace is
maintained between 55° F (13° C) and 80° F (27° C), with no
evening setback or shutdown. The use of the furnace while
the structure is under construction is deemed to be
intermittent operation per our installation instructions.
The air temperature rise is within the rated rise range on the
furnace rating plate, and the firing rate has been set to the
rating plate value.
The filters used to clean the circulating air during the
construction process must be either changed or thoroughly
cleaned prior to occupancy.
The furnace, ductwork and filters are cleaned as necessary
to remove drywall dust and construction debris from all
HVAC system components after construction is completed.
After construction is complete, verify furnace operating
conditions including ignition, input rate, temperature rise
and venting according to these instructions.
Specifications are subject to change without notice.
44001 105006

Dimensions & Clearances
LEFTSIDE " 6iiii_ ELECTRICAL
(177.5) - 11/,
TRAPCKO CCO0.TERFLOW -...... ..................!!!!!..............................................................
1311/13
(347.7)-
i
3111/1_
.8)
.... A _
FRONT
MINIMUM CLEARANCES TO COMBUSTIBLE
MATERIALS FOR ALL UNITS - in (mm)
REAR 0
FRONT (combustion air openings in 3" (76.2)
furnace and in structure)
Required For Service
ALL SIDES Of SUPPLY PLENUM
SIDES
VENT
TOP OF FURNACE
*24" (609.6)
1" (25.4)
0
0
1" (25.4)
*30" (762mm)clearancerecommendedforfurnaceremoval.
Horizontalposition:Linecontactispermissibleonlybetween
linesformedbyintersectionsoftop andtwosidesoffurnace
jacket,andbuildingjoists,studsorframing.
;; 1913/16
(503.2)
17/s
(47,6)
Drawing is representative, _"_i1/4---_
but some models may vary _J31.7)
231/8 _ 37/6
(587.4) (98.;_)
ALL DIMENSIONS - in(mm) 23/6(60.3) _4 i (469.9) TYPE
1 IN = 25.4 MM 11/16(27)____ _.., / !
Unit Cabinet Bottom
Capacity A B C D E
*9UHX060F12 191/8 175/8 21/8 143/4 43/6 41/2 21/2 91/2
(485,8) (447,7) (54) (374,7) (111,1) (114,3) (83,5) (2413)
*9UHXO8OJ12 223/4 211/4 115/16 183/4 43/6 41/2 25/8 113/8
(577,9) (539,8) (492) (4783) (111,1) (114,3) (86,7) (28&9)
*9UHXO8OJ16 223/4 211/4 115/16 183/4 43/6 41/2 25/8 113/8
(577,9) (539,8) (492) (4783) (111,1) (114,3) (86,7) (28&9)
*9UHX100L20 241/2 23 7/16 23 43/8 41/2 21/4 121/4
(622,3} (584,2} (11,1} (584,2} (111,1} (114,3} (57,2} (311,2}
Top _ i\i) ;!/_(COUNTERFLOW)
F G H ......................;_- :_ ELECTRICAL(KO)
* Denotes Brand
NOTE: Evaporator "A" coil drain pan dimensions
may vary from furnace duct opening size. Always
consult evaporator specifications for duct size
requirements.
Furnace is designed for bottom return or side
return.
Return air through back of furnace is NOT al-
lowed.
', - i
2,/°L / 281/2
(73) _" :45/16(109.5),,-= !723:9)181/ 3/4(19.1)
" --_ [ i i z I
GAS(KO)\ I i ,,' RIGHTSIDE _'
.......................... L _ -_-
t d> \ L/ TRAP(KO)
i(2716), ..... ---_ UPFLOW/HORIZONTAL
7"
/ i , =
913/
(249._
33I1
il88i
v _
KO=
(549.3) . I
i j (439.7) t°'_"'w I ;;
i ; 42,g)_ _ ;
KnockOut ,142_/_, 549.3 :_
t t ..................................................................................................................................
\_ i. / TRAP(KO)
. !_ _. /- AIRINTAKE(KO)
413/1 ;; \- _ (ALTERNATE)
6
122.2 _- _ 40
f:-\ ..... VENT(KO) 1016
177.8 TR 'RMOSTA¢7.2 i...............................;
111/_. (KO
.=-, 7 L, 215/6 .=q
_', ":_? 24 o_ (47.6)
(609.6)
;0)
11/8
44001 105006
25-23-36b
Specifications are subject to change without notice.

Knockouts
CUTHAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate clothing, safety
glasses and gloves when handling parts and
servicing furnaces.
Use a hammer and screwdriver to strike a sharp blow ( See
Figure 3) directly to the knockout tie points or use a hammer in the
upper left corner of the desired knockout. Remove any burrs and
sharp edges.
:i: [
................................................................................................................................................for Knockout
25-40-06
NOTE: If a knockout does not come out after two sharp blows, pull
and snip as needed to remove the knockout.
HammerandScrewd.verused
InstallationPositions
This furnace can be installed in an upflow or horizontal (either left
or right) airflow position. DO NOT install this furnace in the
downflow position or on its back. For the upflow position, the return
air ductwork can be attached to either the left or right side panel
and/or the bottom. For horizontal positions, the return air ductwork
must be attached to the bottom:
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury and/or death.
Do NOT install this furnace in DOWNFLOW ap-
plications.
RISQUE D'EMPOISONNEMENT PAR MONOXYDE
DE CARBONE
Si les conseils de cette avertissement ne sont pas
suivi, cela peut entrainer des blessures et/ou la
mort.
Ne pas installer cette fournaise avec un debit DE-
SCENDANT.
FurnaceInstallationConsiderations
The installation of the furnace for a given application wilt dictate the
position of the furnace, the airflow, ductwork connections, vent and
combustion air piping. Consideration must be given to the
following:
CondensateTrapand DrainLines
The supplied condensate trap must be attached to the furnace
side panel on either the left or right side. For horizontal
installations, the drain trap is vertically attached to the side panel
below the furnace. A minimum clearance of 6" below the furnace is
required for the condensate trap. Downward slope of the
condensate drain line from the condensate trap to the drain
location must be provided. Adequate freeze protection of the drain
trap and the drain line must be provided. See "Condensate Drain
Trap" section for further details.
Leveling
Proper leveling of the furnace must be provided to insure proper
drainage of the condensate from the furnace. The furnace must be
level to within 1/4" (6.4mm) from front to back and from side to side
for upflow installations or top to bottom for horizontal installations.
Ventand CombustionAir Connections
For venting information literature, call 931.270.4100 with the
complete model and serial number of the furnace.
Special Venting Requirements for Installations in Canada
Installation in Canada must conform to the requirements of CSA
B149 code. Vent systems must be composed of pipe, fittings,
cements, and primers listed to ULC S636. The special vent
fittings and accessory concentric vent termination kits and
accessory external drain trap have been certified to ULC S636
for use with those IPEX PVC vent components which have
been certified to this standard. In Canada, the primer and
cement must be of the same manufacturer as the vent system -
IPEX System 636, PVC/CPVC Primer, Purple Violet for Flue
Gas Venting and IPEX System 636(1) ,M,PVC Cement for Flue
Gas Venting, rated Class IIA, 65 deg C. must be used with this
venting system - do not mix primers and cements from one
manufacturer with a vent system from a different manufacturer.
Follow the manufacturer's instructions in the use of primer and
cement and never use primer or cement beyond its expiration
date.
The safe operation, as defined by ULC S636, of the vent
system is based on following these installation instructions, the
vent system manufacturer's installation instructions, and proper
use of primer and cement. All fire stop and roof flashing used
with this system must be UL listed material. Acceptability under
Canadian standard CSA B149 is dependent upon full
compliance with all installation instructions. Under this
standard, it is recommended that the vent system be checked
once a year by qualified service personnel.
The authority having jurisdiction (gas inspection authority,
municipal building department, fire department, etc) should be
consulted before installation to determine the need to obtain a
permit.
Consignes speciales pour I'installation de ventillation au
Canada
L'installation faite au Canada dolt se conformer aux exigences
du code CSA B149. Ce syst6me de ventillation dolt se
composer de tuyaux, raccords, ciments et appr6ts conformes
au ULC S636. La tuyauterie de ventillation des gaz, ses
accessoires, le terminal concentrique mural ainsi que
I'ensemble du drain de condensat exterieur ont et6 certifies
ULCS 636 pour I'application des composantes IPEX PVC qui
sont certifiees & ce standard. Au Canada l'appr6t et le ciment
doivent 6tre du m6me manufacturier que le syst6me de
ventiltation - IPEX Systeme 636, Appr6t PVC/CPVC. Mauve
Specifications are subject to change without notice.
44001 105006

Violette pour conduit en evacuation des gaz et IPEX Systeme
636(1) ,M ciment pour PVC pour conduit en evacuation des gaz,
evalu6 CLASSE IIA, 65 deg. C. doit _tre utilise avec ce
systeeme d'evacuation - ne pas melanger t'appr6t et le ciment
d'un manufacturier avec le syst6me de ventillation d'un autre
manufacturier. Bien suivre les indications du manufacturier Iors
de I'utitisation de l'appr6t et du ciment et ne pas utiliser ceux-ci
si la date d'expiration est atteinte.
L'operation securitaire, tel que definit par ULC S636, du
systeme de ventilation est base sur les instructions d'installation
suivantes, ainsi que l'usage approprie de I'appr6t et ciment.
Tout arr_t feu et solin de toit utilises avec ce systeme doivent
6tre des materiaux tistes UL L'acceptation du standard
Canadien CSA B419 est directement relie a I'instaltation
conforme aux instructions ci- haut mentionnees. Le standard
Canadien recommande I' inspection par un personel qualifie et
ce, une fois par annee.
Les autoritees ayant juridiction (inspecteurs de gas, inspecteurs
en b&timents, departement des incendies, etc) devraient 6tre
consuttees avant I'installation afin de determiner si un permis
est requis.
(1) System 636 is a trademark of IPEX Inc.
Note: Repositioning of the combustion blower is required for the
vent pipe connection to the furnace through the "right side" panel.
See "Vent and Combustion Air Piping" section for further details.
HorizontalFurnaceInstallation
This furnace can be installed horizontally in an attic, basement,
crawl space, alcove, or suspended from a ceiling in a basement or
utility room. See Figure 4. Do not install furnace on its back or in
the reverse airflow positions as safety control operation will be
adversely affected.
If the furnace is to be installed in a crawl space, consult local
codes. A suitable concrete pad or blocks are recommended for
crawl space installation on the ground.
NOTE: 6" (152.4mm) bottom clearance required for condensate
trap.
24" (609.6mm) between the front of the furnace and adjacent
construction or other appliances MUST be maintained for service
clearance. [30" (762mm) inches is required to remove furnace].
Keep all insulating materials clear from Iouvered door. Insulating
materials may be combustible.
The horizontal furnaces may be installed directly on combustible
wood flooring or supports as long as all required furnace
clearances are met. See Figure 4.
This furnace MUST NOT be installed directly on carpeting or tile or
other combustible material other than wood flooring or supports.
For horizontal installation over a finished living space. A field
fabricated auxiliary drain pan with drain pipe is required to prevent
damage by overflow due to blocked condensate drain.
Typical Horizontal Installation
25-23-34
NOTE: 6" (152.4mm)bottomclearance requiredfor condensatetrap.
3. Combustion & Ventilation Air
ForSinglePipeInstallation
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could
personal injury or death.
Use methods described here to
combustion and ventilation air.
result in
provide
Furnaces require ventilation openings to provide sufficient air for
proper combustion and ventilation of flue gases. All duct or
openings for supplying combustion and ventilation air must
comply with the gas codes, or in the absence of local codes, the
applicable national codes.
Combustion and ventilation air must be supplied in accordance
with one of the following:
Note: The Combustion & Ventilation Air Section in this document,
uses tables and information from the ANSI Z223.1/NFPA
54. For use in Canada, use CSA B149.1 for this
information.
44001 105006
Specifications are subject to change without notice.

1. Section 9.3, Air for Combustion and Ventilation, of the National
Fuel Gas Code, (NFGC), ANSI Z223.1-2006/NFPA 54-2006
in the U.S.,
2. Sections 8.2, 8.3, 8.5, 8.6, 8.7, and 8.8 of National Standard of
Canada, Natural Gas and Propane Installation Code
(NSCNGPIC), CSA B149.1-05 in Canada,
3. Applicable provisions of the local building code.
This furnace can NOT be common vented or connected to any
type B, BW or L vent or vent connector, nor to any portion of a
factory-built or masonry chimney. Multistory venting is NOT
permitted. If this furnace is replacing a previously common-vented
furnace, it may be necessary to resize the existing vent and
chimney to prevent oversizing problems for the other remaining
appliance(s). See "Venting and Combustion Air Check" in this
section. This furnace MUST be vented to the outside.
When the installation is complete, check that all appliances have
adequate combustion air and are venting properly. See Venting
And Combustion Air Check in "Gas Vent Instaflation" Section in
this manual.
Air (This is ONLY a guide. Subject to codes of country having jurisdiction.)
GasVent
OutdoorCombustionAir Method
A space having less than 50 cubic feet per 1,000 BTUH (4.8 cubic
meters per kW) input rating for all gas appliances installed in the
space requires outdoor air for combustion and ventilation.
AirOpeningsand ConnectingDucts
1. Total input rating for all gas appliances in the space MUST be
considered when determining free area of openings.
2. Connect ducts or openings directly to the outdoors.
3. When screens are used to cover openings, the openings
MUST be no smaller than 1/4" (6.4mm) mesh.
4. The minimum dimension of air ducts MUST NOT be less than
3" (76.2mm).
5. When sizing a grille, louver, or screen use the free area of
opening. If free area is NOT stamped or marked on grill or
louver, assume a 20% free area for wood and 60% for metal.
Screens shall have a mesh size not smaller than 1/4" (6.4mm).
alternateInletAir (1)
ConfinedSpaceInstallation
NOTE: A confined space is defined as an area with tess than 50
cubic feet per 1,000 BTUH input rating for all gas appliances
installed in the area.
Requirements
1. Provide the space with sufficient air for proper combustion and
ventilation of flue gases using horizontal or vertical ducts or
openings.
2. Figure 5 illustrates how to provide combustion and ventilation
air when two permanent openings, one inlet and one outlet,
are used.
a. One opening MUST commence within 12" (304.8mm) of
the floor and the second opening MUST commence
within 12" (304.8mm) of the ceiling.
b. Size openings and ducts per Table 1.
c. Horizontal duct openings require 1 square inch of free
area per 2,000 BTUH (11 cm2/kW) of combined input for
all gas appliances in the space (see Table 1}.
d. Vertical duct openings or openings directly
communicating with the outdoors require 1 square inch
of free area per 4,000 BTUH (5.5 cm2/kW) for combined
input of all gas appliances in the space (see Table 1).
tlet
(2)
OutletAir Opening MustbeWithin12" (304.8mm)of ceiling
(1) 1SquareInch per4000 BTUH
(2) 1SquareInch per2000 BTUH
3. When one permanent outdoor opening is used, the opening
requires:
a. 1 sq. in of free area per 3,000 BTUH (7 cm2/kW) for
combined input of all gas appliances in the space (see
Table 1) and
b. not less than the sum of the areas of all vent connectors
in the space.
The opening shall commence within 12" (304.8mm) of the top of
the enclosure. Appliances shall have clearances of at least 1"
(25.4mm) from the sides and back and 6" (152.4mm) from the
front. The opening shall directly communicate with the outdoors or
shall communicate through a vertical or horizontal duct to the
outdoors or spaces (crawl or attic) that freely communicate with
the outdoors.
4. Combination of Indoor and Outdoor Air shall have:
a.
Indoor openings that comply with the Indoor
Combustion Air Method below and
b.
Outdoor openings located as required in the Outdoor
Combustion Air Method above and
C.
Outdoor openings sized as follows.
10
44001 105006
Specifications are subject to change without notice.

1) Calculate the Ratio of all Indoor Space volume
divided by required volume for Indoor Combustion Air
Method.
2) Outdoor opening size reduction Factor is I minus the
Ratio in 1) above.
BTUH(kW) MinimumFreeAreaRequiredfor EachOpeningorDucttoOutdoors
Input TwoHorizontalDucts SingleOpening TwoVerticalDuctsorOpenings RoundDuct
Rating BTUH(kW) BTUH(kW) BTUH(kW) BTUH(kW)
60,000 (17.58) 30sq.in.(194 cm2) 20sq,in,(129 cm2) 15sq,in.(97 cm2) 5" (127mm)
80,000 (23.45) 40sq.in.(258 cm2) 26.7sq.in.(172.3 cm2) 20sq,in,(129 cm2) 5" (127mm)
100,000 (29.31) 50sq.in.(322 cm2) 33.3sq.in.(214.8 cm2) 25sq,in,(161 cm2) 6" (152.4mm)
EXAMPLE: Determining Free Area
Furnace Water Heater Total Input
100,000 + 30,000 = (130,000 + 4,000) = 32.5 Sq; In. Vertical
29.31 8.8 (38.11 + .18) = 210 cmLVertical
Furnace Water Heater Total Input
100,000 + 30,000 = (130,000 + 2,000) = 65 Sq. In. Horizontal
29.31 8.8 (38.11 + .09) = 423 cm2 Horizontal
sq,in./2,000(1 cm2/.09) sq. in./3,000 (1 cm2/.135) sq. in./4,000(1 cm2/.18) sq. in./4,000(6.5cm2/.18)
3) Minimum size of Outdoor openings shall be the size
required in Outdoor Combustion Air Method above
multiplied by reduction Factor.
IndoorCombustionAir (UnconfinedSpace)
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Most homes will require additional air from
outdoors for combustion and ventilation. A space
with at least 50 cubic feet per 1,ODDBTUH (4.8 cubic
standard method permits indoor air to be used for combustion and
ventilation air.
The Known Air Infiltration Rate Method shall be used if the
infiltration rate is known to be less than 0.40 air changes per hour
(ACH) and equal to or greater than 0.10 ACH. Infiltration rates
greater than 0.60 ACH shall not be used. The minimum required
volume of the space varies with the number of ACH and shall be
determined per Table 2 or Equations 1 and 2. Determine the
minimum required volume for each appliance in the space, and
add the volumes together to get the total minimum required
volume for the space.
meters per kW) input rating or homes with tight
construction may need outdoor air, supplied
through ducts, to supplement air infiltration for
CARBON MONOXIDE POISONING HAZARD
proper combustion and ventilation of flue gases.
Failure to supply additional air by means of
Standard and Known-Air-Infiltration Rate Methods
© NFPA & AGA
Indoor air is permitted for combustion and ventilation, if the
Standard or Known-Air-Infiltration Rate Method is used.
The Standard Method may be used, if the space has no less
volume than 50 cubic feet per 1,000 BTUH (4.8 cubic meters per
kW) input rating for all gas appliances installed in the space. The
,, , ,,,-,_--, MINIMUM SPACE VOLUME FOR 100% COMBUSTION AND VENTILATION AIR FROM INDOORS
OtherThanFan-AssistedTotal Fan-assistedTotal
30,000BTU 40,000BTU 50,000BTU 50,000BTU 75,000 100,000BTU 125,000BTU
ACH (8,790kW) (11,720kW) (14,650kW) (14,650kW) (21,975kW) (29,300kW) (36,625kW)
ventilation grilles or ducts could result in personal
injury or death.
An unconfined space or homes with tight
construction may not have adequate air infiltration
for proper combustion and ventilation of flue gases.
Most homes will require additional air.
ft3(m3)
0.60 1,050 (29.7) 1,400 (39.2) 1,750 (49) 1,250 (35) 1,875 (52.5) 2,500 (70) 3,125 (87.5)
0.50 1,260 (35.3) 1,680 (47.04) 2,100 (58.8) 1,500 (42) 2,250 (63) 3,000 (84) 3,750 (105)
0.40 1,575(44.1) 2,100(58.8) 2,625(73.5) 1,875(52.5) 2,813(78.8) 3,750(105) 4,688(131.3)
0.30 2,100 (58.8) 2,800 (78.4) 3,500 (98) 2,500 (70) 3,750 (105) 5,000 (140) 6,250 (175)
0.20 3,150 (88.2) 4,200 (117.6) 5,250 (147) 3,750 (105) 5,625 (157.5) 7,500 (210) 9,375 (262.5)
0.10 6,300(176.4) 8,400(235.2) 10,500(294) 7,500(210) 11,250(315) 15,000(420) 18,750(525)
0.00 NP NP NP NP NP NP NP
ACH = Air Changes per Hour
NP = Not Permitted
44001 105006
11
Specifications are subject to change without notice.

Table 2 Minimum Space Volumes were determined by using the
following equations from the National Fuel Gas Code ANSI
Z223.1/NFPA 54-2006, 9.3.2.2:
1. For appliances other than fan-assisted appliances (such
as a draft hood-equipped water heater), calculate using the
following equation:
RequiredVolume other _ 21 ft3 ( I other )
RequiredVolume other _ 59 m3 t I other )
-- ACH 1000 BTUH
-- ACH .293 kW
/
!
\
2. For fan-assisted appliances (such as this furnace),
calculate using the following equation:
RequiredVolume fan_ 15ft3 ( 'fan )
ACH 1000 BTUH
Required Volume fan_ "42m3 ( If an )
ACH .293 kW
where:
| other= all appliances other than fan-assisted inputin BTUH
| fan = fan-assisted appliance input in BTUH
ACH = air change per hour (percent of volume of space
exchanged per hour, expressed as a decimal)
3. For purposes of this calculation, an infiltration rate greater
than 0.60 ACH shall not be used in the equations above.
The following requirements apply to the Standard Method and to
the Known Air Infiltration Rate Method.
• Adjoining rooms can be considered part of a space, if there
are no ctosable doors between rooms.
Combining spaces on the same story. Each opening shall
have a minimum free area of at least 1 in.2/1,000 BTUH (22
cm2/kW) of the total input rating of all appliances in the space
but not tess than 100 in. (645 cm ). One opening shall
2 2
commence within 12 in. (304.8 mm) of the top, and one
opening shall commence within 12 in. (304.8 mm)of the
bottom, of the enclosure. The minimum dimension of air
openings shall not be less than 3 in (76.2 mm).
Combining spaces in different stories. The volumes of spaces
on different stories shall be considered as communicating
spaces where such spaces are connected by one or more
openings in doors or floors having a total minimum free area
of 2 in.2/1,000 BTUH (44 cm2/kW) of total input rating of all
appliances.
An attic or crawl space may be considered a space that freely
communicates with the outdoors provided there are adequate
ventilation openings directly to outdoors. Openings MUST
remain open and NOT have any means of being closed off.
Ventilation openings to outdoors MUST be at least 1 square
inch of free area per 4,000 BTUH (5.5cm2/kW) of total input
rating for all gas appliances in the space.
In spaces that use the Indoor Combustion Air Method,
infiltration should be adequate to provide air for combustion,
ventilation and dilution of flue gases. However, in buildings
with unusually tight construction, additional air MUST be
provided using the methods described in section titled
Outdoor Combustion Air Method:
• Unusually tight construction is defined as Construction with:
1. Walls and ceilings exposed to the outdoors have a
continuous, sealed vapor barrier. Openings are
gasketed or sealed and
2. Doors and openable windows are weather stripped and
3. Other openings are caulked or sealed. These include
joints around window and door frames, between sole
plates and floors, between walt-ceiling joints, between
wall panels, at penetrations for plumbing, electrical and
gas lines, etc.
VentilationAir
Some provincial codes and local municipalities require ventilation
or make-up air be brought into the conditioned space as
replacement air. Whichever method is used, the mixed return air
temperature across the heat exchanger MUST not fall below 60°
so that flue gases wilt not condense excessively in the heat
exchanger. Excessive condensation wilt shorten the life of the heat
exchanger and possibly void your warranty.
VentingandCombustionAir Check
NOTE: If this installation replaces an existing furnace from a
commonly vented system, the original venting system may no
longer be sized to properly vent the attached appliances. An
improperly sized venting system may cause the formation of
condensate in the vent and the leakage or spillage of vent gases.
To make sure there is adequate combustion air for all appliances,
MAKE THE FOLLOWING CHECK.
i: iii;i i;i:;i
:!ii_ _iii ! Vent Check
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Vent Pipe----_l I j Draft Hood
wTyPtieCa/GaatSr [ I If _ _,_,_,<_._ Match
If flame pulls towards draft hood, this indicates sufficient
venting.
The following information is supplied to allow the installer to make
adjustments to the setup of existing appliances, IF REQUIRED,
based on good trade practices, local codes, and good judgement
of the installer. Manufacturer does NOT take responsibility for
modifications made to existing equipment.
12
44001 105006
Specifications are subject to change without notice.

CARBON MONOXIDE POISONING HAZARD
Failure to follow the steps outlined below for each
appliance connected to the venting system being
placed into operation, could result in carbon
monoxide poisoning or death:
The following steps shall be followed for each
appliance connected to the venting system being
placed into operation, while all other appliances
connected to the venting system are not in
operation:
1. Seal any unused openings in the venting system.
2. 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, Natural Gas and
Propane Installation Code and these instructions. Deter-
mine that there is no blockage or restriction, leakage,
corrosion and other deficiencies which could cause an
unsafe condition.
3. As 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.
4. Close fireplace dampers.
5. Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such as
range hoods and bathroom exhausts, so they are
operating at maximum speed. Do not operate a summer
exhaust fan.
6. Follow the lighting instructions. Place the appliance being
inspected into operation. Adjust the thermostat so
appliance is operating continuously.
7. Test for spillage from draft hood equipped appliances at
the draft hood relief opening after 5 minutes of main burn-
er operation. Use the flame of a match or candle.
(Figure 6)
8. If improper venting is observed, during any of the above
tests, the venting system must be corrected in
accordance with the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 and/or CSA B149.1, Natural Gas and
Propane Installation Code.
9. 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 gas-fired burning
appliance to their previous conditions of use.
ForTwo PipeInstallation(DirectVent)
This furnace can NOT be common vented or connected to any
type B, BW or L vent or vent connector, nor to any portion of a
factory-built or masonry chimney. If this furnace is replacing a
previously common-vented furnace, it may be necessary to resize
the existing vent and chimney to prevent oversizing problems for
the other remaining appliance(s). See "Venting and Combustion
Air Check" in this section. This furnace MUST be vented to the
outside.
4. Vent and Combustion Air Piping
combustion. The INLET air pipe is optional. If combustion air
comes from inside the structure, adequate make up air MUST be
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Use methods described here to provide combustion
and ventilation air.
DualCertified(*9UHXModels)
This furnace is certified as a category IV appliance. This furnace
can be installed as a direct vent furnace using outside air for
combustion or the furnace can use air from inside the structure for
44001 105006
Specifications are subject to change without notice.
provided to compensate for oxygen burned. See Confined Space
Installation in the Combustion and Ventilation Air chapter. If
combustion air is drawn from outside the structure, it MUST be
taken from the same atmospheric pressure zone as the vent pipe.
ContaminatedCombustionAir
Installations in certain areas or types of structures wilt increase the
exposure to chemicals or halogens that may harm the furnace.
The following areas or types of structures may contain or have
exposure to the substances listed below. The installation must be
evaluated carefully as it may be necessary to provide outside air
for combustion.
13

• Commercial buildings.
• Buildings with indoor pools.
• Furnaces installed in laundry rooms.
• Furnaces installed in hobby or craft rooms.
• Furnaces installed near chemical storage areas.
• Permanent wave solutions for hair.
• Chlorinated waxes and cleaners.
• Chlorine based swimming pool chemicals.
• Water softening chemicals.
• De-icing salts or chemicals.
• Carbon tetrachloride.
• Halogen type refrigerants.
• Cleaning solvents (such as perchloroethylene).
• Printing inks, paint removers, varnishes, etc.
• Hydrochloric acid.
• Sulfuric Acid.
• Solvent cements and glues.
• Antistatic fabric softeners for clothes dryers.
• Masonry acid washing materials.
VentandCombustionAir PipingGuidelines
This furnace is approved for venting with Schedule 40 PVC,
CPVC, ABS fittings, and Cellular Core and SDR-26 PVC pipe.
ApplicableASTM Standards for Vent Materials
Materials Pipe Pipe Core Fittings Primer Cement
ABS D1527 F628 & -- D2235
PVC D1785 D2241 F891 & F656 D2564
CPVC F441 F442 -- F438 -- F493
ABS to
PVC
NOTE: 1) In Canada, all pipe, fittings & cements must conform to
applicable CSA standards or to local codes having jurisdiction.
the specific venting material.
solvent cement that meets the requirements of ASTM D3138.
cementing plastic pipe and fittings.
NOTE: In order to create a seal that allows future removal of pipe,
RTV sealant MUST be used on the inlet pipe where itjoins to the
furnace.
NOTE: All vent piping MUST be installed in compliance with local
codes or ordinances, these instructions, good trade practices, and
codes of country having jurisdiction.
1. Determine the best routing and termination for the vent pipe
2. Determine the size required for the vent pipe and air inlet
Sch.40 SDR Solv.
.......... D3138
2) Only use solvent cements that are marked for use with
3) ABS to PVC transition joints REQUIRE a special
4) Refer to ASTM D2855 for general procedure to use for
and air inlet pipe by referring to all of the instructions and
guidelines in this Section.
pipe.
Cell
Pipe
D2468
D2661
D2466
D2665
3. Loosely assemble all venting parts without adhesive (pipe
joint cement) for correct fit before final assembly.
4. Furnace shall be installed so as to prevent the accumulation
of condensate.
5. Use of ventical piping is preferred because there will be
some moisture in the flue gases that may condense as it
leaves the vent pipe (See Instructions For Horizontal
Vents).
6. The vertical vent pipe MUST be supported so that no weight
is allowed to rest on the combustion blower.
7. Exhaust vent piping or air inlet piping diameter MUST NOT
be reduced.
8. All exhaust vent piping from the furnace to termination
MUST slope upwards. A minimum of 1/4" per foot (6.4mm
per 304.8 mm) of run is required to properly return
condensate to the furnace drain system.
9. Use DWV type long radius elbows whenever possible, as
they provide for the minimum slope on horizontal runs and
they provide tess resistance in the vent system. If DWV
elbows cannot be used, use two, 45° elbows when possible.
On horizontal runs the elbows can be slightly misaligned to
provide the correct slope.
10. All horizontal pipe runs MUST be supported at least every
five feet with galvanized strap or other rust resistant
material. NO sags or dips are permitted.
11. All vertical pipe runs MUST be supported every six feet
where accessible.
12. The minimum vent length is 5' (1.5m) of PVC.
13. The piping can be run in the same chase or adjacent to
supply or vent pipe for water supply or waste plumbing. It
can also be run in the same chase with a vent from another
90+ furnace.
NOTE: In NO case can the piping be run in a chase where
temperatures can exceed 140 ° F(60°C). or where radiated
heat from adjacent surfaces would exceed 140 ° F(60°C).
14. The vent outlet MUST be installed to terminate in the same
atmospheric pressure zone as the combustion air inlet.
15. The vent system can be installed in an existing unused
chimney provided that:
• Both the exhaust vent and air intake run the length of the
chimney.
• No other gas fired appliance or fireplace (solid fuel) is
vented into the chimney.
• The top of the chimney MUST be sealed flush or crowned
up to seal against rain or melting snow so ONLY the piping
protrudes.
• The termination clearances shown in Figure 7 & Figure 8
are maintained.
16. Furnace applications with vertical vents requiring vent
diameter increaser fittings must have increaser fittings
installed in vertical portion of the vent. Condensate will be
trapped in the vent if the vent diameter is increased prior to
having an elbow turned upward. This could cause nuisance
tripping of the pressure switch.
CombustionAirandVent PipingInsulation
Guidelines
NOTE: Use closed ceil, neoprene insulation or equivalent. If
Fiberglass or equivalent insulation is used it must have a vapor
barrier. Use R values of 7 up to 10' (3.1m), R-11 if exposure
exceeds 10' (3.1m). If Fiberglass insulation is used, exterior to the
structure, the pipe MUST be boxed in and sealed against
moisture.
14
44001 105006
Specifications are subject to change without notice.

1. When the vent or combustion air pipe height above the roof
exceeds 30" (76.2mm), or if an exterior vertical riser is used
on a horizontal vent to get above snow levels, the exterior
portion MUST be insulated.
2. When combustion air inlet piping is installed above a
suspended ceiling, the pipe MUST be insulated with
moisture resistant insulation such as Armaflex or other
equivalent type of insulation.
3. Insulate combustion air inlet piping when run in warm,
humid spaces.
SizingCombustionAir andVent Pipe
Consult Table3 select the proper diameter exhaust and
combustion air piping. Exhaust and combustion air piping is sized
for each furnace BTUH size based on total lineal vent length (on
inlet or outlet side), and number of 90 ° elbows required. Two 45 °
elbows can be substituted for one 90 ° elbow. The elbow or elbows
used for vent termination outside the structure ARE counted,
including elbows needed to bring termination above expected
snow levels. The elbow inside the furnace on the *9UHX IS NOT
included in the count.
Pipe Diameter Table
*9UHX Model
60,000 BTUH Furnaces
40' (12.2m) & (5) 90° elbows with 2" (50.8mm) PVC pipe or
70' (21.3m) & (5) 90° elbows with 3" (76.2mm) PVC pipe
80,000 BTUH Furnace
40' (12.2m) & (5) 90° elbows with 2" (50.8mm) PVC pipe or
40' (12.2m) & (5) 90° elbows with 3" (76.2mm) PVC pipe
100,000 BTUH Furnace
30' (9.1m) & (4) 90° elbows with 2" (50.8mm) PVC pipe or
40' (12.2m) & (5) 90° elbows with 3" (76.2mm) PVC pipe
The minimum vent length is 5' (1.5m) of PVC. Elbows are DWV
Long Radius Type for 2" (50.8mm) and 3" (76.2mm) vents.
If more than five elbows are required, reduce the length of
both the inlet and exhaust pipes 5' (1.5m) for each additional
elbow used. If less than five elbows are required, the length
can be INCREASED by 5' (1.5m) for each additional elbow
NOT used.
NOTE: It is allowable to use larger diameter pipe and fitting than
shown in the tables but not smaller diameters than shown.
For "Concentric Termination Kit" Venting see Table 4 in
this manual,
Vent Termination Clearances
CARBON MONOXIDE POISONING
Failure to follow this warning could result in
personal injury or death.
Inlet and outlet pipes may NOT be vented directly
above each other.
1. Determine termination locations based on clearances
specified in following steps and as shown in Figure 7,
Figure 8, Figure 19 through Figure 21.
For "Concentric Termination Kit" clearances, see Figure 28,
through Figure 33 in this manual.
2. For Single Pipe Installation refer to Figure 8 for vent
termination clearances.
3. For Direct Vent Installation refer to Figure 7 for vent
termination clearances.
44001 105006
15
Specifications are subject to change without notice.

Figure 7 Direct Vent Termination Clearance
//
M
B..-
D VENTTERMINAL \\\\\,
Ilem Clearance Descdplion Canadian Installation (1) U.S. Installation (2)
A Clearance above grade, veranda, porch, deck, balcony< or 12 inches(30 cm) # 12 inches (30 cm)
anticipated snow level
B Clearance to a window or door that may be opened 12 inches (30 cm) for appliances > 10,000 Btuh (3 kW) 9 inches (23 am) for appliances > 10,000 Btuh (3kW) and
C Clearance to a permanently closed window
D VeMical clearance to a ventilated soffit located above the
terminal within a horizontal distance of 2 feet(6tcm) from the
centerline of the terminal
E Clearance to an unventilated soffit
F Clearance to an outside corner
G Clearance to an inside corner
H Clearance to each side of the centerline extended above 3 feet (91 am) within 15feet (4,5 m) above the meter/regulator 3 feet (91 cm) within 15 feet(4,5 m) above the
electrical meter or gas service regulator assembly assembly meter/regulator assembly
I Clearance to service regulator vent outlet 3 feet (91 cm)
J Clearance to non-mechanical air supply inlet to building or 12 inches (23 cm) for appliances > 100,000 Btuh (3 kW) 9 inches (23 cm) for appliances > 10,000 Btuh (3kW) and
the combustion air inlet to any other appliance and s 100,000 Btuh (30 kW), 36 inches (30 cm) for _ 50,000 Btuh (15kW), 12 inches (30cm) for appliances
!/X_ AIR SUPPLY INLET
and s 100,000 Btuh(30 kW), 36 inches 50,000 Btuh (15kW), 12 inches (30cm) for appliances >
(91 cm) for appliances > 100,000 Btuh (30 kW) 50,000 Btuh (15kW)
appliances > 100,000 Btuh (3 kW) > 50,000 Btuh (15kW)
AREA WHERE TERMINAL IS NOT PERMITED
K Clearance to a mechanical air supply inlet 6 feet (1.83 m) 3 feet (91 cm) above if within 10 feet (3m)horizontally
L Clearance under a veranda porch, deck, or balcony 12 inches(30 cm) +
M Clearance to each side of the centerline extended above or 12 inches (30 am) 12 inches (30 cm)
below vent terminal of the furnace to a dryer or water heater
vent, or other appliance's direct vent intake or exhaust.
N Clearance to the vent terminal of a dryer vent, water heater 3 feet (9t cm) 3 feet (91 cm)
vent, or other appliances direct vent intake or exhaust.
Q Clearance from a plumbing vent stack 3 feet (91 cm) 3 feet (91 era)
p Clearance above paved sidewalk or paved 7 feet (2.13m)**
driveway located on public property
(1 .) In accordance with the cu rrent CSA B149.1, Natural Gas and Propane Installation Code
(2.) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
# t8" (46 cm) above roof surface
+ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
For clearances not specified in ANSI Z223.t/NFPA 54 or CSA Bi 49.1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the
manufacturer's installation instructions
A vent shall not terminate above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
Notes:
1.
The vent for this appliance shall not terminate
a. Over public walkways; or
b. Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nusaince or hazard or proper_ damage; or
c. Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.
2.
When locating vent terminations, consideration must be given to prevailing winds, location, and other conditions which may cause recirculation of the combustion products of adjacent vents.
Recirculation can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.
3.
Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems.
16
Specifications are subject to change without notice.
44001 105006

Other than Direct Vent Termination Clearance
rs,
vi
LJ /
//
/
/
D VENTTERMINAL
Item Clearance Descriptions
A Clearance above grade, veranda, porch, deck, balcony, or
anticipated snow level
B Clearance to e window or door that may be opened
C Clearance to a permanently closed window
D Vortical clearance to a ventilated soffit located above the
terminal within a horizontal distance of 2"(61cm) from the
centerline of the terminal
E Clearance to an unventilated soffit
F Clearance to an outside corner
G Clearance to an inside corner
H Clearance to each side of the centerline extended above
electrical meter or gas service regulafor assembly
I Clearance to service regulator vent outlet
J Clearance to non-mechanical air supply inlet to building or
the combustion air inlet to any other appliance
K
Clearance to a mechanical air supply inlet
L
Clearance under a veranda, porch, deck, or balcony
M
Clearance to each side of the centerline extended above or
below vent terminal of the furnace to e dryer or water heater
vent, or other appliance's direct vent intake or exhatist.
N Clearance to the vent terminal of a dryer vent, water heater
vent, or other appliances direct vent intake or exhaust.
O Clearance from a plumbing vent stack
p Clearance above paved sidewalk or paved 7 feet (2.13m)**
driveway located on public property
(1.) In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code
(2.) In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
# 18"(46 cm) above roof surface
12 inches (30cm) #
6 inches (15 cm) for appliances < 10,000 Btuh (3 kW)
12 inches ( 30 cm) for appliances > 10,000 Btuh (3 kWO)
and -< 100,000 Btuh (30 kW), 36 inches <91 cm) for
appliances > 100,000 Btuh (30 kW)
3 feet (91 cm) within 15 feet(4.5 m) above the meter/regulator
assembly
3 feet (91 cm)
6 inches (15 cm) for appliances -< 10,000 Btuh (3 kW)
12 inches ( 30 cm) for appliances > 10,000 Btuh (3 kW0)
and -< t00,000 Btuh (30 kW)
36 inches (91 cm) for appliances > 100,000 Btuh (30 kW)
6 feet (t.83 m)
12 inches(30 cm) +
Canadian Installation (1)
+ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor.
For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, clearances shall be in accordance with local installation codes and the requirements of the gas supplier and the
Manufacturer's installation instructions.
** A vent shall not terminate above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
Notes:
1. The vent for this appliance shall net terminate
a. Over public walkways; or
b. Near s_f_t vents _r craw_ space vents _r _ther areas where c_ndensa_e _r va__r c_u_d create a nusiance _r hazard _r praperty damage; _r
c. Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves, or other equipment.
2. When locating vent terminations, consideration must be given to prevailing winds, location, and other c onditions which may cause recirculatien of the combustiob products of adjacent vents.
Recirculation can cause poor combustion, inlet condensate problems, and accelerated corrosion of the heat exchangers.
3 Avoid venting under a deck or large overhang. Recirculation could occur and cause performance or system problems. A05013
44001 105006
Specifications are subject to change without notice.
E_ AREAWHERE TERMINAL IS NOT PERMITED
U.S. Installation (2)
12 inches (30 cm)
4 feet(t .2 m) below or to the side of the opening, t foot(30 cm
above the opening.
3 feet (9t cm) Within 15 feet (4.5 m) above the meter/ragulatol
assembly
4 feet (1.2 m) below or to the side of opening: t foot (30 cm)
above opening,
3 feet (91 cm) above if within 10 feet (3 m horizontally)
7 feet (2.13m)
17

CondensateDrainTrap
This furnace removes both sensible and latent heat from the
products of combustion. Removal of the latent heat results in
condensation of the water vapor. The condensate is removed from
the furnace through the drains in the plastic transition and the vent
fitting. The drains connect to the externally mounted condensate
drain trap on the left or right side of the furnace.
The startup of a new furnace will involve a cycle or two of the
furnace to properly prime the condensate trap with water. Until the
trap is fully primed, some condensate will be pulled into the
combustion blower. The furnace may cycle on the pressure switch
connected to the plastic transition box due to condensate buildup.
After the trap is primed, the condensate will start draining from the
furnace. The combustion blower will clear out any remaining
condensate in the blower housing through the vent fitting
downstream of the blower. Note that the condensate trap can also
be primed by pouring water into the 1/2" (12.7mm) drain hose.
Remove the1/2" (12.7mm) ID drain hose from either the gutter or
the white PVC tee trap. Using a funnel pour eight (8) ounces of
water into 1/2" ID drain hose. Water will flow through the drain hose
and into the condensate drain trap. This wilt prime both the vent
and the transition sides of the trap. Reconnect the 1/2" (12.7mm)
ID drain hose to the original component, either the gutter or the
PVC tee trap.
The condensate drain trap supplied with the furnace MUST be
used. The drain connection on the condensate drain trap is sized
for 3/4" PVC or CPVC pipe, however alternate 1/2" CPVC [nominal
5/8" (15.9mm) O.D.] or vinyl tubing with a minimum inner diameter
(I.D.) of 5/8" (15.9mm) may also be used, as allowed by local
codes. Alternate drain pipes and hoses may be used as allowed by
local codes.
The drain line must maintain a 1/4" (19.1mm) per foot downward
slope toward the drain. 1/4" (19.1mm) per foot (304.8mm) is
recommended. Installation of an overflow line is recommended
when the 1/4" (19.1mm) per foot (304.8mm) slope to the
condensate drain cannot be maintained. A drain tube clip is
included in the furnace to prevent kinking/buckling of the drain
tube. The clip should remain in the furnace (between the door
switch plate and the blower shelf, Figure 9) during operation. See
Figure 17 for proper routing and installation of the overflow.
_igu_ii_ !i,i,iii ] Drain Tube Clip Location
iiiiiiiiiiiiiiiii_iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
FROZEN AND BURST WATER PIPE HAZARD
Failure to follow this caution may result in property
damage.
If a condensate pump is installed, a plugged
condensate drain or a failed pump may cause the
furnace to shut down. Do not leave the home
unattended during freezing weather without turning
off water supply and draining water pipes or
otherwise protecting against the risk of frozen pipes.
If possible, DO NOT route the drain line where it may freeze. The
drain line must terminate at an inside drain to prevent freezing of
the condensate and possible property damage.
1. A condensate sump pump MUST be used if required by
local codes, or if no indoor floor drain is available. The
condensate pump must be approved for use with acidic
condensate.
2. A plugged condensate drain line or a failed condensate
pump will allow condensate to spill. If the furnace is installed
where a condensate spill could cause damage, it is
recommended that an auxiliary safety switch be installed to
prevent operation of the equipment in the event of pump
failure or plugged drain line. If used, an auxiliary safety
switch should be installed in the R circuit (low voltage)
ONLY.
3. If the auxiliary switch in the condensate pump is used, the
furnace may shut down due to a blocked condensate line or
failed pump. To prevent frozen water pipes see the "Frozen
Water Pipe Hazard" Installation Section of this manual.
CondensateDrainTrap FreezeProtection
Special precautions MUST be made if installing furnace in an area
which may drop below freezing. This can cause improper
operation or damage to the equipment. If the the furnace
environment has the potential of freezing, the drain trap and drain
line must be protected. Use 3 to 6 watt per foot at 115 volt, 40° F
self-regulating shielded and waterproof heat tape. Wrap the drain
trap and drain line with the heat tape and secure with the ties.
Follow the heat tape manufacturer's recommendations.
Drain Tube
Blower
Shelf Door
Representativedrawing only some models may vary in appearance.
J
Switch
DO NOT trap the drain line in any other location than at the
condensate drain trap supplied with the furnace.
18
Specifications are subject to change without notice.
44001 105006

///ii///iliiii/i/iiiiiiiii/i!iiii/ilili!/iiiii/!i!i;iiliiiilii/i!iiliiii_,_,ii'i
_ i_11_ _, Upflow Installations Top Vent
(18.1mm)PVCor 1/2" (12.7mm) DrainTubeBlackRubber5/8"(15.9mm)ID &
CPVC(Fieldsupplied) Clamps,Cutlength to fit (Loosepartsbag)
Representative drawing only, some models may vary in appearance.
25-24-80
Upflow Installations Top Vent (SeeFigure10)
Remove knockout from the side of the furnace casing where drain
tube will exit.
Install casing grommet [black rubber 5/8" (15.9mm) ID grommet-
in loose parts bag]
Install the 1/2" CPVC street elbow on discharge of trap
Install the black PVC tube connector [3/4" (18.1mm PVC x 1/2"
(12.7mm) CPVC from loose parts bag] as shown in the illustration
above.
Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag] to
length to fit between trap and tube connector through grommet.
Clamp both ends of the drain tube using clamps provided.
NOTE: "PVC" is used as a generic term. Pipe and fitting materials used must be acceptable to the local code officials having
jurisdiction.
Glue the CPVC street elbow to the trap using appropriate cleaner
and solvent cement.
The field supplied 3/4" (18.1mm) PVC or 1/2" (12.7mm) CPVC
drain line vent tee must vent outside the furnace cabinet (see
exploded view above).
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Trap
must be primed before operation. Verify all condensate drain
connections are securely clamped. A coupling and clamps (in
loose part bag) may be installed as shown for future servicing of
the vent system.
44001 105006
19
Specifications are subject to change without notice.

///ii///iliii/!/i/iiiiiiiii/i!iiii/!Iili!/iiiiii/!i!iiiliiiiii/i!ii/ii/lii!i!
_ _ _:11;1_ Upflow Installations Vent through Left Side
Upflow Installations Vent through Left Side (SeeFigure11)
Remove drain tee from inducer discharge and remove black drain Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag]
tube 1/2" (12.7mm) ID from bottom of drain tee. to length to fit between trap and tube connector through grommet.
Install Vent Pipe grommet in side of casing.
Cut an appropriate length of 2" (50.8mm) PVC pipe long enough
to exit the cabinet and connect the vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee.
Install tee trap into bottom of tee.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap
Install the black PVC drain connector [3/4" (19.1mm) PVC x 1/2"
CPVC from loose parts bag] as shown in the illustration above.
20
Specifications are subject to change without notice.
Clamp both ends of the drain tube using clamps provided.
Glue the CPVC street elbow to the trap using appropriate cleaner
and solvent cement.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the internal trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
44001 105006

MiiiiMiii_:iiiY!iiiiIiii;ii_iiii_JJiiiIii!!i_i_i_!iii_iii!iiiiiH_1i_iii!!i_i_iii_iiiii!iiiYiiii!ii_iii_[!ii'
Plastic Cap _,Yellowor black
All Models Vent through Right Side
SIDEVIEW
_" Rotate downward
i 5°to 10°
i'<"
beangled 5"to 10" also.
All Models Vent through Right Side (SeeFigure12)
Disconnect the black drain tube between the drain vent and the
trap.
Rotate the inducer 180° for a right side vent after loosening the 4
inducer attachment screws. Reinstall and retighten the inducer
screws to 20" pounds torque.
Using the 1/2" (12.7mm) OD barbed coupling in the loose parts bag
connect together with the 2 short 1/2" (12.7mm) ID elbow tubes
and connect the lower discharge port of the vent drain to the trap.
Secure all connections with clamps.
Install the vent pipe grommet into the casing
Cut an appropriate length of 2" (50.8mm) PVC pipe long enough
to exit the cabinet and connect the vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee.
Install tee trap into bottom section of tee.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Install casing grommet [black rubber [5/8" (15.9mm) ID grommet
-in loose parts bag]
Representativedrawingonly,somemodelsmayvaryin appearance.
(Loosepartsbag)
25-24-82
Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap
Install the black PVC tube connector [3/4" (19.1mm) PVC x 1/2"
(12.7mm) CPVC from loose parts bag] as shown in the illustration
above
Cut the black drain tube [5/8" (15.9mm) ID - in loose parts bag] to
length to fit between trap and tube connector through grommet.
Clamp both ends of the drain tube using clamps provided.
Glue the CPVC street elbow to the trap using appropriate cleaner
and solvent cement.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the internal trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
44001 105006
21
Specifications are subject to change without notice.

///i//!iiiiiiii!_:/ii:i,liiiitiiilillilliiiiii'i'ii'iiili!lliiii/!iiii//ili!!/
Horizontal Left through Top
(loosepartsbag)
25-24-84
Representativedrawingonly,somemodelsmayvaryin appearance.
Horizontal Left through Top (SeeFigure13)
Disconnect the hoses from the trap assembly, and remove trap
and trap mounting bracket from the blower compartment. Using
cover plate and gasket provided in the loose parts bag, cover the
hole from the burner compartment to the blower compartment and
secure with screws.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
two screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
Remove the black 1/2" (12.7mm) ID drain tube from the drain tee.
Install a yellow cap and clamp over the open drain port of the drain
tee.
Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain
to the trap. Secure connections with clamps.
22 44001 105006
Specifications are subject to change without notice.
Connect the 3/16" (4.8mm) ID relief tube to the middle port on the
trap. Ifan extension is required, use the 3/16" (4.8mm) OD flexible
tubing connector and the black 3/16" (4.8mm) ID relief tube in the
loose parts bag. Cut tube to length. Secure all connections with
clamps.
Cut an appropriate length of 2" (50.8mm) PVC pipe, long enough
to exit the cabinet and connect the vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee.
Install tee trap into bottom section of tee.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the external trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.

_ii_ii_i_iii_:_:i:i_ii_iiiiiii`_i!i_iii_ii_i_iiiiii_i_;_
Horizontal Left-Side Vent
Alternate Orientation
Field
Single Pressure Switch Detail
Yelloworblack
Plastic Cap
i
/
/
SuppliedTee_\
_ _ Dual Pressure Switch y
T..................... _ _ & Clamps
i i ...................................................................ReliefTubeBlackRub- _ ..................................................................................................................................................
S!opedtowage i i
VentDrain
i,_! j ber3/16" (4.Smm)ID i i
..... ElbowTubeBlackRubber1/2 (12.7mm)
/ ................... -_f / _ ID&Clamps(LoosePartsBag) i
_)_ _ ,_f_ , _@ ....... BarbedCoupling1/2" (12.7mm)ODi
TeeTrapWhitePVC/ !_ i! _J_ _ _<_i_i_ _:'_I_ i (LoosePartsBag)
(loosepartsbag) .........._ i _ ,' /; 'zo ',,
i _ i ;_j_/_ _'_U_\ _, _ -, ,
, _ = _, O-_c _.........._ ,O_' i_ _
_ _/ i/:_ ,,_J t /_ \,_, \ '-_ • _ _= DramTubeBlackRubber
ii i ................................................................................................ {_'i_ WARNING
i / =oveCapstotopoftrapi
= / // i_ _ _ DramTubeCorrugated5/8,,115.9mm1
FlexibleTubeConnector3/16" / ID&Clamps
(4.8mm)OD(LoosePartsBag)/ Cutatstraightsection
ReliefTubingExtension/
BlackRubber3/16" (4,8mm)ID i .... _............_ ....................
CuttoFit(LoosePartsBag) Leaveroomfor/\clamp_CutHere
Representativedrawingonly,somemodelsmayvaryin appearance.
Horizontal Left-Side Vent (SeeFigure14)
Remove the drain tee from the Vent Drain if installed.
Rotate the inducer 180 ° for a side vent after loosening the 4
inducer attachment screws. Reinstall and retighten the inducer
screws to 20" pounds torque.
Disconnect the hoses from the trap assembly, and remove trap
and trap mounting bracket from the blower compartment. Using
cover plate and gasket provided in the loose parts bag, cover the
hole from the burner compartment to the blower compartment and
secure with screws.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
two screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain
to the trap. If an extension is required, use the black 1/2" (12.7mm)
OD flexible tubing connector and the black 1/2" (12.7mm) ID drain
tube in the loose parts bag. Cut tube to length. Secure
connections with clamps.
/
/
Connect the 3/16" (4.8mm) ID relief tube to the middle port on the
trap. Ifan extension is required, use the 3/16" (4.8mm) OD flexible
tubing connector and the black 3/16" (4.8mm) ID relief tube in the
loose parts bag. Cut tube to length.
Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and
extension pipe long enough to exit the cabinet and connect the
vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee.
Install tee trap into bottom section of tee.
Important: The pipe to the tee trap must be level or sloping towards
the tee trap
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the external trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
25-24-88
44001 105006
23
Specifications are subject to change without notice.

iiiiiiiiiiii!!iii_;iiiii!i_iiiiiii!ii_iii_iiii_iiiHHiiii_iiHii!iiii11ii!iii_iHiiiiiiii!i!_!iHii_iHHHHHiiii
i_i_!_! i_ Horizontal Right through Top
Leaveroomforclamp Cut Here
Representativedrawingonly,somemodelsmayvaryin appearance.
Horizontal Right through Top (SeeFigure15)
Disconnect the hoses from the trap assembly, and remove trap
and trap mounting bracket from the blower compartment. Using
cover plate and gasket provided in the loose parts bag, cover the
hole from the burner compartment to the blower compartment and
secure with screws.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
two screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
Connect the black 1/2,, (12.7mm) ID drain tube from the Vent Drain
to the trap. If an extension is required, use the black 1/2" (12.7mm)
OD barbed coupling and the black 1/2" (12.7mm) ID drain tube in
the loose parts bag. Cut tube to length. Secure connections with
clamps.
25-24-89
Connect the 3/16" (4.8mm) ID relief tube to the middle port on the
trap. If an extension is required, use the clear 3/16" (4.8mm) OD
flexible tubing connector and the black 3/16" (4.8mm) ID relief tube
in the loose parts bag. Cut tube to length.
Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and
extension pipe long enough to exit the cabinet and connect the
vent drain to a standard field supplied 2" (50.8mm) PVC tee
Install tee trap into bottom section of tee.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the external trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
24
44001 105006
Specifications are subject to change without notice.

iiiiiiiiiiiiiiiii_;iiiY!iiii_iiii1Iiiii!_!!iii_ii!!i_i;i_i;iii!iiiiiH_1i_Iiii!iit!!iiiiX_;i!_iii!{{iiii!_!iiii;;;iii!
__ f Horizontal Right-SideVent
if i PlasticCap
)," i Yelloworblack /\
,' ........ _ --o_....... -.
=_z- --j _ ii j / j "_
_/ ,;_ ,_-"_, _ji / ", (Optional)
//// i' ,' ,/ _,, ,,ji __ l_-.... _" ' 7
i/........ ......... ............................... VentDrain _ .
..... ............. , Coupling&Clamps
x ;_- &Clamps _ Field
' Single Pressure Switch Detail _ ,,>!,;/ SuppliedTee
..................I.......................... -
_ / / towardsTee /'
I_ _ "i / /-- _ TeeTrap
: J / ,-- ........... \ WhitePVC
:: Re efTubeBackRub- i i i i .....
ber3/16"(48mm)O -..... j ..........._lnow/u.oe
iI _-_. _ ....... .) J J _............. 1/2.(12.7mm)lO&Clamps
"-. j i ......... i UlaCKHuooer
j _ ; .L.I .L; __-- i
J .i. _-_ ....... ._ (LoosePartsBag)
FlexibleTubingConnector _'_ "_j _ _ i_ _ O_ILS?meM°dels
/16 (4.8mm)OD(Loose............. "..... _//'_/-'_ ---\.//_ ' /
,_- ! , j .....(loosepartsbag)
ReliefTubeExtension ........ j __' i "< _' ij Alternate
BlackRubber3/16" (4.8mm)ID ?',_' :,_'_/_),_:-_/A_!_ o J-_ Qrientati°n
CuttoFit(LoosePartsBag) _.j_,_X _",,,_ _ _" \\ _ _J i _ _
Dual Pressure Swrtch ',Q\I'lt _ J _ b
............................................................................................ \\,
5 ,,
DrainTubeCorrugated,cutatstra o /8 IO&Clamped/ 'j - _ BarbedCoupling1/2"(12.7mm)
Ightsectln _ DrainTubeBlack OD (LoosePartsBag)
\ .................................."_.......................................... j _ Rubber
.......... _J_;"*" ............... "_ i J] 1/2"(12.7mm)ID &
Leaveroomforclamp CutHere j Clamps
Representativedrawingonly,somemodelsmayvaryin appearance. 25-24-84c
Horizontal Right Side Vent (SeeFigure16)
Disconnect drain tee if installed
Disconnect the hoses from the trap assembly, and remove trap
and trap mounting bracket from the blower compartment. Using
cover plate and gasket provided in the loose parts bag, cover the
hole from the burner compartment to the blower compartment and
secure with screws.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
two screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
Connect the black 1/2" (12.7mm) ID drain tube from the Vent Drain
to the trap. If an extension is required, use the 1/2" (12.7mm) OD
barbed coupling and the black 1/2" (12.7mm) ID drain tube in the
loose parts bag. Cut tube to length. Secure connections with
clamps.
Connect the 3/16" (4.8mm) ID relief tube to the middle port on the
trap. If an extension is required, use the clear 3/16" (4.8mm) OD
_/_, - _/__: ......................
splice connector and the black 3/16" (4.8mm) ID relief tube in the
loose parts bag. Cut tube to length.
Cut an appropriate length of 2" (50.8mm) PVC pipe, fittings and
extension pipe long enough to exit the cabinet and connect the
vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee, or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee.
Install tee trap into bottom section of tee.
Important: The pipe to the tee trap must be level or sloping towards
the tee trap.
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 17.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the external trap and the external tee trap must be primed
before operation. Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
44001 105006
25
Specifications are subject to change without notice.

Connecting Tee Trap to Condensate
Trap and Main Drain Line
The tee trap must be connected to the main condensate drain
line as conceptually shown above. Different installations may
require slightly different orientations. The following steps apply
to all installations.
1. The tee trap should be installed as close to the side or top of
the furnace as practical. Minimize the distance between the
inducer and the tee trap as much as possible.
2. An open tee is to be used at the tee trap discharge. The top
end of the tee should be open to the atmosphere to
eliminate potential air lock problems.
3. The drain line from the tee trap is to be connected to the
furnace condensate trap drain line as shown above.
4. Condensate drain lines from a cooling coil may be
connected downstream of the connection point of the tee
trap and furnace condensate trap.
Important: Prime both traps with water before operation.
Failure to prime the traps may result in discharge of flue gases
from the condensate drain line and open tee for a period of
time, and may result intemporary lockout of the furnace upon
start up. Main drain line construction is left to the discretion of
the installer. It may be made of either rigid pipe or flexible tube.
Tube ID should NOT be less than 1/2,, (12.7mm).
ConnectingVent and CombustionAir Piping
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Cement or mechanically seal all joints, fittings, etc.
to prevent leakage of flue gases.
Refer to Figure 10 through Figure 16 that corresponds to the
installation position of the furnace for the application.
Preassemble the vent and combustion air piping from the furnace
to the vent termination. Do not cement the pipe joints until the pipe
preassembty process is complete.
CombustionAir Pipe Connection (Dual Certified or
Direct Vent)
Install the air intake coupling and gasket to the furnace with the
four(4) screws.
Note: The air intake coupling and gasket can be installed to the top
panel, or to the alternate air intake locations on either the left or
right side panels of the furnace.
For installation in the alternate air intake location on either the left
or right side panels, remove the 3" (76.2mm) knockout from the
side panel and relocate to the air intake hole in the top panel. Use
four (4) screws to seal the four (4) mounting holes in the top panel
next to the hole plug. Drill four (4) 7/64"(2.8mm) diameter holes in
the casing using the air intake coupling as the template.
The air intake coupling is sized for 2" (50.8mm) PVC pipe.
Install the combustion air pipe to the air intake coupling using RTV
sealant to provide for future serviceability.
Vent Pipe Connection
Install the vent pipe grommet to the furnace panel. Locate the
grommet in the furnace panel at a location directly away from the
vent fitting on the combustion blower. The grommet snaps into the
3" (76.2mm) hole on the furnace panel. NOTE: Depending on the
installation position, the vent pipe grommet will be installed to the
top panel or to the alternate location on the side panels. If needed,
remove the 3" (76.2mm) hole plug from the loose parts bag and
relocate to the open hole in the furnace panel. (See Figure 10 or
Figure 17)
Install the vent pipe to the rubber coupling, the vent fitting or the
PVC vent extension pipe. Securely attach using the clamp or PVC
cement as required.
Note: The vent fitting MUST be installed with the air flow
marking arrow pointed toward the vent pipe. (See Figure 18)
Some installations require the vent fitting to be installed with
a 5° to 10° downward slope. (See Figure 10 through Figure 17)
26
44001 105006
Specifications are subject to change without notice.

iiiiii;_iiiii_iiiiii_i_iiii_ii_ii_i!i!i0Iiiiiiiiiiiii!!iiii_i:_iiii_!iIiii_i!_ii!iii!ii1i_i_i;iii
Proper Sealing Procedure for
Combustion Blower
RubberCoupling _ Vent Pipe
&Clamps __ (Top PanelExit)
< " _,,j NOTE: The 90 ° elbow is approved
f _ i VentPipe for use inside the furnace ONLY.
2. After checking pipe and socket for proper fit, wipe socket
and pipe with cleaner-primer. Apply a liberal coat of primer
to inside surface of socket and outside of pipe. Do NOT
allow primer to dry before applying cement.
3. Apply a thin coat of cement evenly in the socket. Quickly
apply a heavy coat of cement to the pipe end and insert pipe
into fittings with a slight twisting movement until it bottoms
out.
NOTE: Cement MUST be fluid while inserting pipe. If NOT, recoat
pipe.
4. Hold the pipe in the fitting for 30 seconds to prevent the
tapered socket from pushing the pipe out of the fitting.
5. Wipe all excess cement from the joint with a rag. Allow 15
minutes before handling. Cure time varies according to fit,
temperature and humidity.
ConnectingVentPipesandTermination
(DirectVent)
NOTE: For direct vent applications, combustion air intake and vent
MUST terminate in the same atmospheric pressure zone. If
installation is in a cold climate (sustained temperatures 0°F and
belowfor24or moreconsecutivehours), increase the minimum distance
between vent pipe and air intake from 8" to 18".
NOTE: Builtqn channelwillbeangled5° to 10° also. 25=24=14a
Joining Pipe and Fittings
SEE VENT AND COMBUSTION AIR PIPING, vent and
Combustion Air Piping Guidleines in this manual for applicable
ASTM Standards for vent materials.
FIRE HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Observe all cautions and warnings printed on
material containers
Provide adequate ventilation and do NOT assemble
near heat source or open flame. Do NOT smoke
while using solvent cements and avoid contact with
skin or eyes.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Do NOT use solvent cement that has become
curdled, lumpy or thickened and do NOT thin.
Observe precautions printed on containers. For
applications below 32°F(0°C), use only low tempera-
ture type solvent cement. Poor joints may lead to
disconnected or leaking vent pipe joints allowing
carbon monoxide to enter the living space.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Maintain a minimum of 36" (914.4mm) between
combustion air inlet and clothes dryer vent.
Terminate the combustion air intake as far as
possible from any air conditioner, heat pump,
swimming pool, swimming pool pumping, chlori-
nator or filtration unit.
1,
Install all couplings, nipples and elbows using proper
procedures for Joining Pipe and Fittings and maintain
spacing between vent and combustion air piping as
indicated in Figure 19 through Figure 21 .
Sidewall Termination 12"
(304.8mm)
;_ More Above Snow Level or Grade Leve
8" 203.2mm* MIN. _ "18" (457.2mm) Minimum for
20'(6.1m) MAX
j i/_" coldclimates(sustainedtem-
____ peratures0°F(-17°C)and below
__'__ _F' for 24 or more consecutive
__ _ _ 8" (203 2m m)
hours)
// "& , _A /
INLET _ 9 12"
// _ (304=8mm)
_ _ OR
--4"" MIN.
SNOW LEVEL 25-00-05F
or
1. Cut pipe end square, remove ragged edges and burrs.
Chamfer end of pipe, then clean fitting, socket and pipe joint
of all dirt, grease, or moisture.
NOTE: Stir the solvent cement frequently while using. Use a
natural bristle brush or the dauber supplied with the cement. The
proper brush size is one inch.
44001 105006
Specifications are subject to change without notice.
HorizontalTermination
1,
Cut two holes. 21/2" (63.5mm) for 2" (50.mm) pipe, 3"
(76.2mm) for 21/2" (63.5mm) pipe, or 31/2" (88.9mm) for 3"
(76.2mm) pipe. Do NOT make the holes oversized, or it wilt
be necessary to add a sheet metal or plywood plate on the
outside with the correct size hole in it.
27

2. Check hole sizes by making sure it is smaller than the
couplings or elbows that will be installed on the outside. The
couplings or elbows MUST prevent the pipe from being
pushed back through the wall.
3. Extend vent pipe and combustion air pipe through the wall
3/4" (19.1 mm) to 1" (25.4mm) and seal area between pipe
and wall.
4. Install the couplings, nipple and termination elbows as
shown and maintain spacing between vent and combustion
air piping as indicated in Figure 19 and Figure 20.
A metal shield is recommended 18" x 18" (457.2mm x 457.2mm)
min. or 18" (457.2mm) min. diameter around the vent termination
at the exterior walt to protect the house exterior materials from flue
product or condensation (freezing) damage.
Using ExteriorRisers
1. Install elbows and pipe to form riser as shown in Figure 20.
2. Secure vent pipe to wall with galvanized strap or other rust
resistant material to restrain pipe from moving.
3. Insulate pipe with Armaflex or equivalent moisture resistant
closed cell foam insulation or fiberglass insulation if boxed
in and sealed against moisture.
!iiiiiiii!1{iiiiiiiiiiiiiii1ii;; Recommended Alternate Installation
forSustainedColdWeather[0° F(-17°0)&belowfor24
hoursormoreconsecutivehours]
-\
EXHAUST
;2" 1304.8mm)MIN.
alIL/........
OVERHANG
....
INLET
--L.... j "---L \,
........ ......... -12" (304.8mm)MIN.Ground
-_ ................................. "-. _Level OR Snow Level
FRONT VIEW
SIDE VIEW
f .........
, F---' .......
Fia_20 Risers to Get Above Snow Level or
Sidewall Termination with Exterior
Grade Level
8" (203.2rnm)* MIN. /_" "18" (457.2mm)Minimumfor
20' (6 lrn) MAX J i _ cold climates [sustained 0°F
• _1_ _._ (-17°C) and belowfor 24 or
i ___ more consecutivehours]
{ _ ,/ i 12" (304.8mm)
/:/ /_F_--,-4 "_-_ 1 _/Z
ii ( INLET-'I
EXHAUSt_:_
/ _ '- OR
,_s j SNOW LEVEL 25-00-04F
s> iL , MIN•
_J_ " GRADE LEVEL
VerticalTermination
1. Figure 22 shows the proper installation and clearances for
vertical vent termination. The vertical roof termination
should be sealed with a plumbing roof boot or equivalent
flashing. The inlet of the intake pipe and end of the exhaust
vent must be terminated no less than 12" (307.8mm) above
the roof or snow accumulation level, and 12" (307.8mm)
away from a vertical walt or other protrusion.
2. If the vent system is installed in an existing chimney make
sure clearances shown in Figure22 are maintained.
Horizontal section before the termination elbow can be
extended on the inlet air to provide necessary clearance.
12 _
304.8mm)
v
SameJoist
Space
25-23-73
iii i 7iii Rooftop Termination
____________________________________________________________________________________________________________________________________________....
A = 12" (304.8mm) Above roof or snow accumulation level
B = 8" (203.2mm) Min., 20' (6.1m) Maximum, except in areas
with extreme cold temperatures [sustained 0°F(-17°C) and be-
low for 24 or more consecutive hours], the 18" (457.2mm) Min.
VentTerminationShielding
Under certain wind conditions some building materials may be
affected by flue products expelled in close proximity to
unprotected surfaces. Sealing or shielding of the exposed
surfaces with a corrosion resistant material (such as aluminum
sheeting) may be required to prevent staining or deterioration. The
protective material should be attached and sealed (if necessary) to
the building before attaching the vent terminal.
28
44001 105006
Specifications are subject to change without notice.

MultiVentTerminationClearances
When two (2) or more furnaces are vented near each other, each
furnace must be individually vented.
Two (2) vent terminations may be installed as shown in Figure 23,
Figure 24, Figure 25, Figure 26, Figure 27 and Figure 21, but
the next vent termination must be at least 36" (914.4mm) away
from first two terminations. It is important that vent terminations be
made as shown to avoid recirculation of flue gases.
Sidewall Inlet Vent and Exhaust-
Air Termination
_;'_;--_;_"_-_-I;t->;J";;"S_D-_-S;;";J-C_;_-:/.......I_ "
........_---T'._--_---'y._--'_.----.--_"_--->"--_ ..... IP A" ! 8" (203.2mm)
':_--;_--_-'-_>:_]--'___-]-'/_;-J"3-........Exhaust_ J.L / /-_ " -..j_,
__---__--'__fJ.iS J ".I---j" _\=--::__ i _ --
"-,J >-" --_--">-" ...... ......,_ d _ _-L _ ........
.......;-f.s-_---"A" _ ...... L /_-_ d_/ _-_\
gure _3
Concentric Vent and Combustion-
Air Roof Termination
_2" (50.8mm)
Max 364Min __,>...... Exhaust
L,,-
f
////
Concentric Vent and Combustion-
Air Sidewall Termination
.................i_/- ..........// ......... ..................
C-ombustionAir .... i i;......: Maximum - ...............
.................. -_-_ _-._:_ _; Vent ................. -........
............._ /,_D.......,_-/_ ............
- _............_ _-__!%.._..-:_]'_-:......_-i .........i_,,
.................- _:-,.,.......
Vent 25-22-02d
Dimension "A"is touching or 2" (503.8mm) maximum separation.
A
................../ =o........
_]L) ....j__ _.--JJJJJJJJJJ"
12" (304,8mm)Min, .... [Sustained0°F(-17°C) and below for
Gradeor Snow Level 24hoursor more consecutivehours]
..........._'_"_¥
........Dimension "A" istouching or 2" (50.8mm) maximum separatior
______________!_____!_:_:_i____i__!!__i__ii_____i_i7__i_i_iiiii__!______i_______!i_ii___
_;_'iiI=Ii ii_ii!iil_i'I Sidewall Inlet Vent and Exhaust-Air
iiii_ iguirei_6iii!ii!i
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiTermination with Exterior Risers
-_-- 8" (203.2mm)Min. [:_C "--1_ _ ..........
iiii_--:_> "I 20' (6 lm) Max [ --_._j......--_--_ ! [;,u&;,mm] IVlln.
::_- Exhaust_ JI_ ,'/ X" - D _-- -_ -'_'_/_ 12" (457.2mm)
_ / _ _(, /_ ___j Inlet Min. Grade or
/ / .... _---/ _8" (457.2mm)Min.for Cold Climates
L L.__I . _ [Sustained0°F(-17°C)andbelowfor
__--_ _ 24 hours or more consecutivehours]
J S-_"
Dimension "A" is touching or 2" (503.8mm) maximum separation.
i
' 'u_"" "-" Rooftop Inlet Vent and Exhaust-
, , _0'(_._m)Max. .- ._. -_...... ,,
"\", Inlet ....i _;---'_
j_J_ 18" (457.2mm)Min. for Cold Climates
'_ ' i_-><:_/L - [ i Snow Love
A
Air Termination
8" (203.2mm)Min. "...."E_-_]--'.........
44001 105006
",", __\:\i-_!_L:_:_--'_;_---_- "__ Exhaust
__.-:_,-.......____:........_,--_;,_._._-,,:-........>:..........._......
12"(304.8mm) "\,"_---_-\!_---_.....)_ .......'Y- ....................
Min Grade or ',,',,--;_"_', _'..... -......
^ " . . ', '_ "....... 18"(4572mm)Min for Cold Climates
bnow Level ' ' ---- ----- . " "
Specifications are subject to change without notice.
,,_-- _.............[Sustained0°F(-17°0) and belowfor
24 hoursor moreconsecutivehours]
29

5. Concentric Termination
VentTerminationClearances
CARBON MONOXIDE POISONING, FIRE AND
EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Inlet and outlet pipes may NOT be vented directly
above each other (standard vent terminals).
1. Determine termination locations based on clearances
specified in following steps and as shown in Figure 7,
Figure 28 through Figure 33.
2. The vent termination must be located at least 12"
(304.8mm) above ground or normally expected snow
accumulation levels.
3. Do NOT terminate over public walkways. Avoid areas
where condensate may cause problems such as above
planters, patios, or adjacent to windows where steam may
cause fogging.
4. The vent termination shall be located at least 4' (1219mm)
horizontally from any electric meter, gas meter, gas
regulator, and any relief equipment. These distances apply
ONLY to U.S. installations.
5. The vent termination is to be located at least 3' (914mm)
above any forced air inlet located within 10' (3m); and at
least 10' (3m) from a combustion air intake of another
appliance, except another direct vent furnace intake.
6. In Canada, the Canadian Fuel Gas Code takes precedence
over the preceding termination instructions.
ConcentricVentTermination- Kit#
NAHA001CV & NAHA002CV
For Concentric Vent Termination information call 931.270.4100
with the complete model and serial number of the furnace.
Special Venting Requirements for Installations in Canada
Installation in Canada must conform to the requirements of CSA
B149 code. Vent systems must be composed of pipe, fittings,
cements, and primers listed to ULC $636. The special vent
fittings and accessory concentric vent termination kits and
accessory external drain trap have been certified to ULC $636
for use with those IPEX PVC vent components which have
been certified to this standard. In Canada, the primer and
cement must be of the same manufacturer as the vent system -
IPEX System 636, PVC/CPVC Primer, Purple Violet for Flue
Gas Venting and IPEX System 636(1),M, PVC Cement for Flue
Gas Venting, rated Class IIA, 65 deg C. must be used with this
venting system - do not mix primers and cements from one
manufacturer with a vent system from a different manufacturer.
Follow the manufacturer's instructions in the use of primer and
cement and never use primer or cement beyond its expiration
date.
The safe operation, as defined by ULC $636, of the vent
system is based on following these installation instructions, the
vent system manufacturer's installation instructions, and proper
use of primer and cement. All fire stop and roof flashing used
with this system must be UL listed material. Acceptability under
Canadian standard CSA B149 is dependent upon full
compliance with all installation instructions. Under this
standard, it is recommended that the vent system be checked
once a year by qualified service personnel.
The authority having jurisdiction (gas inspection authority,
municipal building department, fire department, etc) should be
consulted before installation to determine the need to obtain a
permit.
Consignes speciales pour I'installation de ventillation au
Canada
L'installation faite au Canada doit se conformer aux exigences
du code CSA B149. Ce syst6me de ventillation dolt se
composer de tuyaux, raccords, ciments et appr6ts conformes
au ULC $636. La tuyauterie de ventillation des gaz, ses
accessoires, le terminal concentrique mural ainsi que
I'ensemble du drain de condensat exterieur ont et6 certifies
ULCS 636 pour I'application des composantes IPEX PVC qui
sont certifiees & ce standard. Au Canada l'appr6t et le ciment
doivent 6tre du m6me manufacturier que le syst6me de
ventillation - IPEX Systeme 636, Appr6t PVC/CPVC. Mauve
Violette pour conduit en evacuation des gaz et IPEX Systeme
636(1) ,M ciment pour PVC pour conduit en evacuation des gaz,
evalu6 CLASSE IIA, 65 deg. C. doit _tre utilise avec ce
systeeme d'evacuation - ne pas melanger t'appr6t et te ciment
d'un manufacturier avec le syst6me de ventillation d'un autre
manufacturier. Bien suivre les indications du manufacturier Iors
de I'utitisation de l'appr6t et du ciment et ne pas utitiser ceux-ci
si la date d'expiration est atteinte.
L'operation secudtaire, tel que definit par ULC $636, du
systeme de ventilation est base sur les instructions d'installation
suivantes, ainsi que I'usage approprie de I'appr6t et ciment.
Tout arr_t feu et sown de toit utitises avec ce systeme doivent
6tre des matedaux listes UL. L'acceptation du standard
Canadien CSA B419 est directement relie & I'instaltation
conforme aux instructions ci- haut mentionnees. Le standard
Canadien recommande I' inspection par un personel qualifie et
ce, une fois par annee.
Les autoritees ayant juddiction (inspecteurs de gas, inspecteurs
en b&timents, departement des incendies, etc) devraient 6tre
consultees avant I'instaltation afin de determiner si un permis
est requis.
(1) System 636 is a trademark of IPEX Inc.
These kits are for vertical or horizontal termination of the
combustion air inlet and the exhaust vent pipes on Category IV
gas-fired condensing furnaces. The NAHA001CV kit can be used
for 3" (76.2mm) diameter pipe systems. The NAHA002CV kit can
be used for 2"(50.8mm) diameter pipe system. Refer to Table 4
for the correct pipe size for the furnace. Both the combustion air
inlet and the exhaust vent pipes must attach to the termination kit.
The termination kit must terminate outside the structure and must
be installed per the instructions outlined below for vertical or
horizontal termination. Vertical termination is preferred. Field
supplied pipe and fittings are required to complete the installation.
Kit Components in(mm)
KitContents:
3" (76.2)RainCapor2" (50.8)RainCap
3" (76.2)DiameterSDR-26 Pipe,191/2"(495.3)Longor
4" (101.6)DiameterSDR-26 Pipe,24" (609.6)Long,
2" (50.8)DiameterSDR-26 Pipe,315/8"(803.3)Longor
1 1
2/2" (63.5) DiameterSDR-26 Pipe,37/8" (973)Long, 2" (50.8)or 3"
Y' (76.2)Y ConcentricFittingor 2" (50.8)Y Concentric Fitting (76.2)Dia.
Nominal3" (76.2)or4" Raintp
/101.6/Dia.SDR-26Pipe
_
Y ConcentricFitting Dia.SDR-26 Pipe 25-22-03
2 (50.8) or 21/2" (63.5)
30
44001 105006
Specifications are subject to change without notice.

Vertical& HorizontalTermination
1,
Determine the pipe diameters required for the installation
from Table 4 and Figure 30.
2.
Determine the best location for the termination kit. See
Figure29 for vertical termination or Figure33 for
horizontal termination. Roof termination is preferred since it
is less susceptible to damage, has reduced intake
contaminants and less visible vent vapor. For side wall
termination, consideration should be given to: 1) possible
damage from the vapors to plants/shrubs, other equipment
and building materials, 2) possible damage to the terminal
from foreign objects, 3) wind effects that may cause
recircutation of flue products, debris or light snow and 4)
visible vent vapor.
iiii
Concentric Vent Roof Installation
Vent
zlL_ Maintain12" (304.8mm)min. clear-
ance abovehighestanticipated
// aboveroof.
Combustion
Air ,,
Roof Boot/ i _. J>-J" _.....
(FieldSupplied) j_¢- [..2._7
snowlevel. Max. of 24" (609.6mm)
j///j
.............:i" ° ¥' support
_[........[ (Field Supplied)
45° Elbow
(FieldSupplied)
Vent. ::
Note:
Supportmustbefield installedto secureterminationkitto structure.
3,
Cut one 5" (127mm) diameter hole through the structure for
the NAHA001CV Kit or one 4" (101.6mm) diameter hole for
the NAHA002CV Kit
4. Dimension D may be lengthened to 60" (1524mm) max. or
shortened by cutting the pipes to 12" (304.8mm) min.
Dimension A will change according to D dimension. (See
Figure 30)
5. Partially assemble the concentric vent termination kit.
Clean and cement the parts using the procedures for
Joining Pipe and Fittings section of the manual. A) Cement
the Y Concentric fitting to the longest of the two straight kit
pipes. (See Figure 28) B) Cement the rain cap to the
shortest of the straight kit parts. (See Figure 28) NOTE: A
field supplied stainless steel screw may be used to secure
the rain cap to the pipe instead of cementing when field
disassembly is desired for cleaning (See Figure 31)
If assembly needs to be extended to meet height or side wall
thickness requirement, the two pipes supplied in the kit may be
replaced by using the same diameter solid, single (no coupling
connections) field supplied SDR-26 PVC (ASTM D2241) pipes.
Do not extend dimension D more than 60"(1524mm). (See
Figure 30)
:: !1_ Combustion
_--Air
25-22-02
_igu_ _::i Concentric Vent Dimensional Drawing
....... B PVC
"9{ A ).
Model A* B C D**
NAHA002CV 333/8 2 31/2 165/8
NAHA001CV 387/8 3 41/2 211/8
(847.7) (50.8) (88.9) (422.3)
(987.4) (76.2) (114.3) (536.6)
* = Dimension will change accordingly as dimension Dis
lengthenedor shortened.
**= DimensionD may be lengthened to 60" (1524mm) may also be
shortened
bycuttingthe pipesprovidedin the kitto 12" (304.8mm)minimum
} iii ' Concentric Termination Kit
_:_41_ _ NAHA001CV & NAHA002CV Venting
Table for *9UHX Models
6o,ooo Btuh Furnaces
NAHA002CV- 35' (10.7m)& (4)90° elbows
with 2" (50.8ram)PVC pipe or
NAHA001CV - 65' (20m) & (4) 90° elbows
with 3" (76.2mm) PVCpipe
80,000 Btuh Furnace
NAHA002CV - 35' (10.7m) & (4)90° elbows
with 2" (50.8ram)PVC pipe or
NAHA001CV - 35' (10.7m) & (4)90° elbows
with 3" (76.2mm) PVCpipe
100,000 Btuh Furnace
NAHA002CV - 25' (7.6m) & (3)90° elbows
with 2" (50.8ram)PVC pipe or
NAHA001CV - 35' (10.7m) & (4)90° elbows
with 3" (76.2mm) PVCpipe
1. Do not include the field supplied 45 ° elbow in the total elbow
count.
2. If more elbows are required, reduce the length of both the inlet
and the exhaust pipes five feet (1.5m) for each additional
elbow used.
3, Elbows are DWV long radius type for 2" and 3" (50.8mm and
76.2mm) vents.
NOTE: The minimum vent length is 5' (1.5m) of PVC. Feet (mm) of
pipe is whichever pipe length is the longest, either inlet or outlet
side.
Do not use field supplied couplings to extend the pipes.
Airflow restriction will occur and the furnace pressure switch
may cause intermittent operation.
44001 105006
31
Specifications are subject to change without notice.

iMiiMiiii_:iiiYi_Iiii_i_i!iiiiIi_iiii1iiiiiii_iiiiiiiii1ii!_i_iii_i_:iiii_i_iiiiii_iiIiiiMiii_i_ii_,i_iilili
:: __ii_: Rain Cap to Vent Pipe Assembly
Drillclearancehole in rain
cap and pilotholein ventpipe.
: _ i :i
_|gure_ !_, Concentric Vent and Combustion-
.... Air Side Termination
A
. Roof Overhang
: eesew
25-22-02
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
When using the alternate screw assembly method,
drill a clearance hole in the rain cap and a pilot hole
in the vent pipe for the screw size being used.
Failure to drill adequate holes may cause cracking
of the PVC components, allowing flue gases to be
recirculated.
6,
Install the Y concentric fitting and the pipe assembly
through the structure's hole. For vertical termination, install
the parts through the field supplied roof boot/flashing.
NOTE: Do not allow insulation or other materials to
accumulate inside the pipe assembly when installing
through the structure's hole.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Do not operate the furnace with the rain cap
removed as recirculating of the flue gases may
occur. Water may also collect inside the larger
combustion air pipe and flow to the burner
enclosure.
7,
Secure the assembly to the structure as shown in Figure 29
or Figure 33 using field supplied metal strapping or
equivalent material.
NOTE: Ensure the termination height is above the roof
surface or anticipated snow level as shown in Figure 29for
vertical termination. Ensure the termination location
clearance dimensions are as shown in Figure 32 and
Figure 33 for horizontal termination.
(Fieldsupplied)
............mn
....... _.......... .... Combustion
1_"(25.4mm) max_:..............._........._il
...... .............. i_-J/-_bi_ Vent
................ -1__)_:[=:;_J---[---......... k: -........._ Maintain 12" (304.8mm) clear-
_/_----- J.__. ance above highestanticipated
................................... 't is greater.
8. Install the rain cap and the small diameter pipe assembly _n
the Y concentric fitting and the large pipe assembly. Ensure
that the small diameter pipe is bottomed out and securely
cemented in the Y concentric fitting.
9. Cement the furnace combustion air and vent pipes to the
concentric vent termination assembly. See Figure 32 or
Figure 33 for proper pipe attachment.
10. Operate the furnace through one heat cycle to ensure
combustion air and vent pipes are properly connected to the
concentric termination connections.
Concentric Vent Sidewall
Attachment
Air
Note:
Securing strapmust be field installed to preventmovement of terminationkit in sidewall.
(FieldSupplied) 25-22-02
snow level or grade whichever
25-22-02
6. Gas Supply and Piping
FIRE AND EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Models designated for Natural Gas are to be used
with Natural Gas ONLY, unless properly converted to
use with Propane gas.
NOTE: The rating plate is stamped with the model number, gas
type and gas input rating. In addition, models manufactured for
sale in Canada have orifice size information stamped on the rating
plate.
32
Specifications are subject to change without notice.
GasSupply Requirements
Gas supply pressure should be within minimum and maximum
values listed on rating plate. Pressures are usually set by gas
suppliers.
(See Propane Gas Conversion Kit instruction manual for furnaces
converted to Propane gas)
• Use only the Type of gas approved for this furnace. See
rating plate for approved gas type.
A 1/8" NPT plugged tapping, accessible for a test gauge
connection,must be installed immediately upstream of the
gas supply connection to furnace.
Gas supply pressure should be within minimum and
maximum values listed on rating plate. Pressures are
usually set by gas suppliers.
44001 105006

• Gas input must not exceed the rated input shown on the
rating plate. Overfiring will result in failure of heat exchanger
and cause dangerous operation.
• Do not allow minimum supply pressure to vary downward.
Doing so wilt decrease input to furnace. Refer to Table 5 for
Gas supply. Refer to Table 6 or Table 7 for manifold
pressures.
Gas Pressures
Gas Type Supply Pressure
Recommended Max. Min.
Natural 7 in wc 14 in wc 4.5 in wc
(1744 Pa) (3487 Pa) (1121 Pa)
Propane 11 in wc 14 in wc 11 in wc
(2740 Pa) (3487 Pa) (2740 Pa)
Gas PipingRequirements
NOTE: The gas supply line must be installed by a qualified service
technician in accordance with all building codes.
NOTE: In the state of Massachusetts.
a. Gas supply connections MUST be performed by a
licensed plumber or gas fitter.
b. When flexible connectors are used, the maximum length
shall not exceed 36" (915 mm).
c. When lever handle type manual equipment shutoff
valves are used, they shall be T-handle valves.
d. The use of copper tubing for gas piping is NOT approved
by the state of Massachusetts.
1,
Install gas piping in accordance with local codes, or in the
absence of local codes, the applicable national codes. Refer
to NFPA 54/ANSI Z223.1 for proper gas pipe size.
2,
It is recommended that a manual equipment shutoff valve be
installed in the gas supply line outside the furnace. Locate
valve as close to the furnace as )ossibte where it is readily
accessible. Refer to Figure 34.
3,
Use black iron or steel pipe and fittings or other pipe approved
by local code.
4.
Use pipe thread compound which is resistant to natural and
Propane gases.
5.
Use ground joint unions and install a drip leg no less than 3"
(76.2mm) tong to trap dirt and moisture before it can enter gas
control valve inside furnace.
iiiiiii_iiiiii_ii!ii_iii1111i_iiiiiiiii!i_iii_iHHii_i_iiiiH_iiI!!iiiiii!!iii!Iiiiiiii_;iii!iii!iiiii!ii11iii!ii_i1ii!i
Typical Gas Piping for Upflow
NOTE: Refer to Figure 34 for the general layout at the furnace.
The rules listed apply to natural and Propane gas pipe installations.
NOTE: Install the gas pipe grommet to the furnace side panel with
the gas pipe entry. If needed, remove the 2" (50.emm) hole plug
from the plastic accessory bag and relocate to the open hole inthe
furnace side panel.
6. Use two pipe wrenches when making connections to
prevent gas valve from turning.
7. Install a manual shut-off valve external to furnace casing
and tighten all joints securely.
8. If local codes allow the use of flexible gas appliance
connectors, always use a new listed connector.
Do not use a connector which has previously serviced
another gas appliance.
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
A flexible corrugated metal gas connector must be
properly installed, shall not extend through the side
of the furnace,and shall not be used inside the
furnace.
Black iron pipe shall be installed at the furnace gas
control valve and extend a minimum of 2" (50.8mm)
outside furnace casing.
9,
Flexible corrugated metal gas connector may NOT be used
inside the furnace or be secured or supported by the
furnace or ductwork.
10. Properly size gas pipe to handle combined appliance toad
or run gas pipe directly from gas meter or Propane gas
regulator.
11. Install correct pipe size for run length and furnace rating.
12. Measure pipe length from gas meter or Propane second
stage regulator to determine gas pipe size.
DripLegandUnion,Unionshouldbeoutsidethe /
cabinet,Manualshut-offvalveMUSTbeupstreamof - / _
dripleg,union,andfurnace, "............ / / i_ _ __
, VentPipeGrommet(SinglePipe)
Manualshutoff
........ valve / _,_ z z -_
Useelbowsand3" (76.2mm)pipenippletoconnectvalveto ........... _i____ _/,
ppngwhenusngrghtsdegasppeentry _ _--_
\
/ "_ _._ _-__._. _\. _,_/_ ........ ) Alternative
-Q--_. _, .'_._(_..... ""_'_-_/ /'"._ _)_-J}'_ _ " _"_ installation
..- _ _._'_: _'_ ', _.... _ ..... _, ,' _ _ i
PropaneLowp_ _ 3,,(76.2m/_m,_._ "....... _ Models may
sureswitch _ ....... _ o oe " ............ _-_1 _ have l/or 2
REQUIRED. ...... nipple _,_"_- _ pressure
_ "' ii_ switches
i
* Union may be installed inside the cabinet when necessary -.-. /
because of clearances. ._-.""-... _i _
Representativedrawingonly,somemodelsmayvaryin appearance. "_'_
44001 105006
Specifications are subject to change without notice.
/_ /' 25-24-86
33

AdditionalPropaneConnectionRequirements
1. Have a licensed Propane gas dealer make all connections
at storage tank and check all connections from tank to
furnace.
2. If copper tubing is used, it MUST comply with limitation set in
National Fuel Gas Code or CGA codes.
3. Two-stage regulation of Propane gas is recommended.
PropaneConversion
An accessory kit shall be used to convert to propane gas use, see
the furnace rating plate for the Propane conversion accessory kit
part number.
FIRE, EXPLOSION, UNIT DAMAGE HAZARD
Failure to follow this warning could result in death,
property damage and/or personal injury.
A Propane conversion accessory kit is required
when operating the furnace with Propane gas.
SupplyPressure
FIRE HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Do NOT set input rating above that shown on rating
plate.
1. A 1/8" NPT plugged tapping, accessible for a test gauge
connection, must be installed immediately upstream of the
gas supply connection to the furnace.
2. Gas input to burners MUST NOT exceed the rated input
shown on rating plate.
3. Do NOT allow minimum gas supply pressure to vary
downward. Doing so will decrease input to furnace. Refer to
Table 6 and Table 7 for normal gas supply and manifold
pressures.
ManifoldGasPressureAdjustment
SEE CHECKS AND ADJUSTMENTS, Manifold Gas Pressure
Adjustment in this manual.
NATURAL GAS MANIFOLD PRESSURE (in wc)
HEATING
VALUE
at ALTITUDE
BTU/CU. FT.
700 '!. _:. _:!
0 to 2000 2001 to 3000* 3001 to 4000 4001 to 5000 5001 to 6000
(0to 609.6) (609.9to914.4)* (914.7to 1219.2) (1219.5to 1524) (1524.3to1828.8)
Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold Orifice Manifold
No. Pressure No. Pressure No. Pressure No. Pressure No. Pressure
725
750 : _-_- _. } .
775 41 2.9
800 42 3.1 43 3.6
825 43 3.7 43 3.6 43 3.4
850 43 3.5 43 3.4 44 3.7
875 43 3.4 43 3.3 44 3.6 44 3.5
900 i, : ,, i,,,:_),,, 44 3.7 44 3.6 44 3.4 44 3.3
925 44 3.7 44 3.5 44 3.4 44 3.2 44 3.1
950 44 3.5 44 3.3 44 3.2 44 3.1 45 3.6
975 44 3.3 44 3.1 45 3.7 45 3.5 45 3.4
1000 44 3.2 45 3.6 45 3.5 45 3.4 45 3.2
1050 46 3.6 45 3.3 45 3.2 45 3.1 46 3.1
1100 46 3.3 45 3.0 46 3.0 46 2.9
Conversion:1in wc= 249 Pa
NOTE: Natural gas data is based on 0.60 specific gravity. For fuels with different specific gravity consult the National Fuel Gas Code ANSI
Z223.1-2006/NFPA 54-2006 or National Standard of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.
* In the USA, derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design-certified by CSA.
In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to
1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 6 and Table 7.
. =
MEAN ELEVATION ABOVE SEA LEVEL - ft(m)
6001 to 7000 7001 to 8000
(1829.1to 2133.6 (2133.9to 2438.4)
Orifice Manifold Orifice Manifold
No. Pressure No. Pressure
it_-i it : tit 42 3.6
42 3.5 42 3.4
42 3.3 42 3.2
43 3.7 43 3.6
43 3.5 43 3.4
43 3.3 44 3.6
44 3.6 44 3.4
44 3.4 44 3.2
44 3.2 44 3.1
45 3.6 45 3.5
45 3.5 45 3.3
45 3.3 45 3.2
45 3.1 46 3.1
},
,,,i__i _!_7 ::i' PROPANE GAS MANIFOLD PRESSURE (in wc)
HEATING VALUE
at ALTITUDE
BTU/CU. FT.
2500
Orifice Size #55 #55
Conversion:1 in wc= 249 Pa
NOTE: Propane data is based on 1.53 specific gravity.
Z223.1-2006/NFPA 54-2006 or National Standard Of Canada, Natural Gas And Propane Installation Code CSA B149.1-05.
0 to 2000 2001 to 3000*
(0to609.6) (609.9to 914.4)*
10.0 8.9
* In the USA, derating of these furnaces at 2% (Natural Gas) and 4% (Propane Gas) has been tested and design-certified by CSA.
In Canada, the input rating must be derated 5% (Natural Gas) and 10% (Propane Gas) for altitudes of 2,000 to 4,500 (609.6 to
1371.6m) above sea level. Use the 2001 to 3000 (609.9 to 914.4m) column in Table 6 and Table 7.
34 440 01 1050 06
Specifications are subject to change without notice.
MEAN ELEVATION ABOVE SEA LEVEL - ft(m)
3001 to 4000
(914.7to 1219.2
8.4
#55
For fuels with different specific gravity consult the National Fuel Gas Code ANSI
4001 to 5000 5001 to 6000
(914.7to 1219.2 (1524.3to 1828.8)
10.0 10.0
6001 to 7000
(1829.1to 2133.6
10.0
7001 to 8000
(2133.9to 2438.4)
10.0

The burner orifice part nos. are as follows:
Orifice #41 1096942 Orifice #42 1011351
Orifice #43 1011377 Orifice #44 1011352
Orifice #45 1011353 Orifice #46 1011744
Orifice #47 1011378 Orifice #48 1113201
Orifice #49 1113202 Orifice #54 1011376
Orifice #55 1011354 Orifice #56 1011355
GeneralDeratingRules
1. These furnaces may be used at full input rating when
installed at altitudes up to 2,000' (609.6m). When installed
above 2,000' (609.6m), the input must be decreased 2%
(Natural) or 4% (Propane) for each 1000' above sea level in
the USA. In Canada, the input rating must be derated 5%
(natural) or 10% (Propane) for each 1000' (304.8m) above
sea level. See Table 6 or Table 7 for required high altitude
input rate.
2. For operation with natural gas at altitudes above 2,000'
(609.6m), orifice change and/or manifold pressure
adjustments may be required for the gas supplied. First
consult your local gas supplier, then refer to Table 6 for
required pressure change and/or orifice change for high
altitudes.
3,
For operation with Propane gas, gas orifices MUST be
changed and manifold pressure MUST be maintained as
per Table 7. Orifices can be ordered through our distributor.
(See Figure 35)
High Altitude Input Rate =
Nameplate Sea Level Input Rate x (Multiplier) [USA]
Elevation
2001' -3000'
(609.9 - 914.4) 0.95 0.90
3001' -4OOO'
(914.7 - 1219.2) 0.93 0.86
4001' -5000'
(1219.5 - 1524) 0.91 0.82
5001' -6000'
(1524.3 - 1828.8) 0.89 0.78
6001' -7000'
(1829.1 - 2133.6) 0.87 0.74
7001' - 8000'
(2133.9 - 2438.4) 0.85 0.70
* Based on mid-range of elevation.
High Altitude Multiplier
Natural Gas Propane Gas
NOTE: Main burner orifices can be changed for high altitudes.
1. Disconnect gas line from gas valve.
2. Remove manifold from furnace.
3. Remove the orifices from the manifold and replace them
with properly sized orifices.
4. Tighten orifices so it is seated and gas tight. (See
Figure 35)
5. Reinstall manifold. Ensure burners do NOT bind on new
orifices.
NaturalGas InputRatingCheck
SEE CHECKS AND ADJUSTMENTS, Natural Gas Input Rating
Check in this manual.
Changing Orifices
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Measure from face of orifice
FinalGas PipingCheck
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Never test for gas leaks with an open flame. Use a
commercially available soap solution made specifi-
cally for the detection of leaks to check all
connections. A fire or explosion could result
causing property damage, personal injury and/or
loss of life.
HighAltitudeAir PressureSwitch
Altitudes over 4,000' (1219.2m) may require a different air
pressure switch than the one installed at the factory. Check parts
list for pressure switch and consult your distributor for part number
and availability. In Canada, provincial codes may govern
installation of switch. Check with governing authorities.
Changing Orifices for HighAltitude
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Turn OFF electric power (at disconnect) and gas
supply (at manual valve in gas line) when installing
orifices. Installation of orifices requires a qualified
service technician.
44001 105006
Specifications are subject to change without notice.
1,
The furnace and the equipment shut off valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess
of 1/2" PSlG. Close the manual shut-off valve before testing
at such pressures.
RISQUE D'INDENDIE OU D'EXPLOSION
Le non-respect des avertissements de securite
pourrait d'entrainer des blessures graves, la mort
ou des dommages materiels,
Ne jamais utiliser une flamme nue por verifier la
presence des fuites de gaz. Pour la verification de
tous les joints, utiliser plutbt une solution
savonneuse commerciale fabriquee
specifiquement pur la detection des fuites de gaz.
Un incendie ou une explosion peut entrainer des
dommages materiels, des blessures ou la mort.
35

2. When installation is complete, test all pipe connections for
leaks with the gas pressure less than 1/2_" PSlG to the gas
valve.
3. The furnace must be isolated from the gas supply system by
closing the equipment shut off valve during any pressure
testing of the gas supply system at test pressure equal to or
less than 1/2_" PSI.
7. Electrical Wiring
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
Turn OFF electrical power at fuse box or service
panel before making any electrical connections
and ensure a proper ground connection is made
before connecting line voltage.
PowerSupplyWiring
The furnace MUST be electrically wired and grounded in
accordance with local codes, or in the absence of local codes with
the latest edition of The National Electric Code, ANSI NFPA 70
and/or The Canadian Electric Code CSA C22.1.
The power supply to the furnace connections must be between
104 VAC and 127 VAC during furnace operation for acceptable
performance.
Field wiring connections must be made inside the furnace
connection box. A suitable strain relief should be used at the point
the wires exit the furnace casing.
Copper conductors shall be used. Line voltage wires should
conform to temperature limitation of 63 °F (35° C) rise and be sized
for the unit maximum amps stated on the rating plate. Add the full
load amps for potential field-installed accessories such as
electronic air cleaners and humidifiers that would receive power
from the furnace control. The furnace control is rated for a
maximum of 1.0 amp combined for EAC and HUM. Consult NEC
or local codes for proper wire and circuit sizing.
NOTE: Furnace will not have normal operation if line polarity is
reversed. Check ALL field and control connections prior to
operation.
JunctionBox(J-Box) Relocation
The J-box is installed on left side of casing. An alternate j-box
location on right side can be used.
1. Remove bag containing two hole plugs and two self tapping
screws from loose parts bag in blower compartment.
2. Remove two screws holding J-Box to casing.
3. Move large hole plug from right to left J-Box location.
4. Clip wire tie holding J-Box wires.
5. Move J-Box to alternate location and attach using two self
tapping screws from bag.
6. Apply two hole plugs from bag at left J-Box location.
Thermostat
4,
Apply a commercial soap solution to all joints to test for
leaks. Correct any leaks indicated by bubbles.
5.
Correct even the smallest leak at once.
6.
Check for leaks at gas valve and orifice connections to the
burner manifold while the furnace is operating.
thermostat. Be sure 24VAC humidifier is wired up to control. Allow
furnace to operate for two minutes before recording the AC
amperage reading. Set anticipator on thermostat to recorded
value.
OptionalEquipment
All wiring from furnace to optional equipment MUST conform to
local codes or, in the absence of local codes with the latest edition
of The National Electric Code, ANSI NFPA 70 and/or The
Canadian Electric Code CSA C22.1. Install wiring in accordance
with manufacturer's instructions. The wiring MUST have a
minimum temperature rating of 105 ° C.
HumidifierlElectronicAir Cleaner
The furnace is wired for humidifier and/or electronic air cleaner
connection.
REDUCED FURNACE LIFE HAZARD
Failure to follow caution may result in reduced
furnace life.
Do NOT exceed 115V/1.0 amp. maximum current
load for both the EAC terminal and the HUM
terminal combined.
HUMIDIFIER - The HUM (115) is energized when the pressure
switch closes on a call for heat. The HUM is energized when
the inducer is energized.
ELECTRONIC AIR CLEANER - EAC is energized when there
is a blower speed call, except is NOT energized when blower
operates in the hard-wired continuous fan mode.
FurnaceControl
The furnace control is preset at the factory with a fixed blower ON
delay of 30 seconds in the heating mode. The blower OFF timing is
preset at 140 seconds. If desired, the fan OFF delay can be reset
to obtain the longest delay times while still maintaining comfort
levels. See "Furnace Wiring Diagram".
Thermostat location has an important effect on the operation of the
unit. Follow instructions included with thermostat for correct
mounting and wiring.
Low voltage connections to furnace must be made on terminal
board of furnace control.
Heat anticipator setting wilt need to be measured if 24VAC
humidifier is installed. Measure current in series from R to W atthe
36
Specifications are subject to change without notice.
44001 105006

Electrical Connections
NOTE:Junction Boxcan be
mountedtoeither theleftor right
side.
i {'}
l.......................T YG
Connection
BOX
G_ou'nd
LowVoltage
TerminalBoard
J
./
/ 25-24-90-2
NOTE: 115 VAC/60Hz/single-phase
J
Operating voltage range*: 127 VAC max, 104 VAC min.
* Permissible limits of voltage at which unit will operate satisfactorily
Representativedrawingonly_somemodelsmayvaryinappearance.
FurnaceControl Fuse
The 24V circuit contains a 5-amp, automotive-type fuse located
on furnace control. (See Figure 37) Any electrical shorts of 24V
wiring during installation, service, or maintenance may cause fuse
to blow. If fuse replacement is required, use only a fuse of identical
size (5 amp.)
ii ::
Contro,Board
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
BlowerOff iif_
DelayJumper_ _4_
24VAC ;._
HUM.........._ _;I
FUSE....
8. Ductwork and Filter
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Do NOT draw return air from inside a closet or utility
room where furnace is located. Return air duct
MUST be sealed to furnace casing.
Installation
NOTE: Design and install the air distribution system to comply with
Air Conditioning Contractors of America manuals and/or NFPA
pamphlets 90A and 90B or other approved methods that conform
to local codes and good trade practices.
1. When furnace supply ducts carry air outside furnace area,
seal return air duct to furnace casing and terminate duct
outside furnace space.
2. Install air conditioning cooling coil (evaporator) on outlet
side of furnace.
3. For furnaces installed without a cooling coil it is
recommended that the outlet duct be provided with a
removable access panel. This panel should be accessible
when the furnace is installed so the exterior of the heat
exchanger can be viewed for inspections. The access panel
MUST be sealed to prevent leaks.
4. If separate evaporator and blower units are used, install
good sealing dampers for air flow control. Chilled air going
through the furnace could cause condensation and shorten
the furnace life.
NOTE: Dampers (field supplied) can be either automatic or
manual. Manually operated dampers MUST be equipped with a
means to prevent furnace or air conditioning operation unless
damper is in the full heat or coot position.
CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in
personal injury or death.
Cool air passing over heat exchanger can cause
condensate to form resulting in heat exchanger
failure.
Connections
NOTE: On upfiow installations, return air can enter through either
side, both sides, or the bottom. On horizontal installations the
return air must enter through the knockout opening in the lower
panel of the furnace. Return air can not enter through rear of the
furnace. When the furnace is located in an area near or adjacent to
the living area, the system should be carefully designed with
returns to minimize noise transmission through the return grille.
Any blower moving a high volume of air will produce audible noise
which could be objectionable to when the unit is located very close
to living areas. It is advisable to route the return air ducts under the
floor or through the attic.
1. For side connections using a 16" x 25" (406.4 x 635mm)
filter, cut out the embossed area shown in Figure 38. This
will provide a 141/2" x 221/2" (368.3 x 571.5mm)
approximate opening.
44001 105006
37
Specifications are subject to change without notice.

2. Bottom returns can be made by removing the knockout
panel in the furnace base. Do NOT remove knock-out
except for a bottom return.
3. Installation of locking-type dampers are recommended in all
branches, or in individual ducts to balance system's air flow.
4. Non-combustible, flexible duct connectors are
recommended for return and supply connections to
furnace.
i::i[} i (} i
gure _8 Side Return Air Cutout
A= 141/2" (368.3mm)HeightofCutoutfor16"x25"(406.4x635mm)Filter
B=221/2"(571.5mm)WidthofCutoutfor16"x25" (406.4x635mm)Filter
Embossed Area
on Side of Furnace
Side Mounted Filter Rack
\
25-20-90
FilterInstallationusingOptional FilterRack
When installing or removing a bottom mounted filter, slide the two
side filter clips to the back of the furnace BEFORE installing or
removing. This will allow the filter to clear the front raised edge of
the furnace. Insert filter into side clips first and push filter back until
it is fully engaged into back clip. When filter is in place, slide clips
back into place midway on filter as shown in Figure 40 and
Figure 41.
FurnaceBottom
NOTE: Furnaces with 5 ton cooling rating may require both
(left and right) side return or one side and bottom return.
Side return air duct(s) is not permitted with horizontal furnace
installation.
5. If air return grille is located close to the fan inlet, install at
least one, 90° air turn between fan and inlet grille to reduce
noise.
NOTE: To further reduce noise, install acoustical air turning vanes
and/or line the inside of duct with acoustical material.
Sizing
Existing or new ductwork MUST be sized to handle the correct
amount of airflow for either heating only or heating and air
conditioning.
Insulation
1. Insulate ductwork installed in attics or other areas exposed
to outside temperatures with a minimum of 2" (50.8mm)
insulation and vapor barrier.
2. Insulate ductwork in indoor unconditioned areas with a
minimum of 1" (25.4mm) insulation with indoor type vapor
barrier.
Filters
A Filter must be used:
Filters are not supplied with these furnaces, but can be purchased
from the distributor.
Use either filter type:
• Washable, high velocity filters are based on a maximum
air flow rating of 600 FPM.
• Disposable, low velocity filters are based on a maximum
air flow of 300 FPM when used with filter grille.
• See Circulating Air Blower Data for additional data.
NOTE: Disposable, low velocity filters may be replaced with
washable, high velocity filter providing they meet the minimum
size areas. Washable, high velocity filters can be replaced ONLY
with same type and size.
Bottom Mounted Filter Rack
Center Clip ,
side-to-side ",,
...... -\.\
9" (152.4mm) --_.j_ 25-24-18-1
Slide filter clips towards back before removing
Filter Clip Construction
1 ]/2" _\\ \"
\
26 Ga. Galvanized Steel
FAST part number 1008482
76.2)
11/4 " (31.8)
38
44001 105006
Specifications are subject to change without notice.

Refer to Figure 42 and for guidelines to install filters. Furnaces
which require larger filter media and have limited clearances on
one side of furnace, require a standoff filter rack, see Figure 42,
available from your distributor.
Standoff Filter Rack
UsingOptional
StandoffFilter
Rack
25-21-45a
9. Checks and Adjustments
AdditionOfAir Conditioning
When a refrigeration coil is used in conjunction with this unit, it must
be installed parallel with or on the discharge side of the unit to avoid
condensation on the heat exchanger. All furnaces are designed
with a break-away duct flange on the supply air side of the furnace.
This allows for installation in the horizontal right application. The
coil installation instructions must be consulted for proper coil
location and installation procedures. With a parallel flow
arrangement, dampers must be installed to prevent chilled air from
entering the furnace. If manually operated dampers are used, they
must be equipped with a means to prevent operation of either unit
unless the damper is in full heat or full cool position.
A 3" (76.2mm) clearance is required on the right side of the furnace
in order to run the copper or plastic tubing for the condensate drain
line.
NOTE: Verify the input rate of the furnace.
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Turn OFF gas at shut off before connecting
manometer.
Startup
NOTE: Refer to the start-up procedures in the "User's Information
Manual" or to the "Operating Instructions Label" on the furnace.
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
If any sparks, odors or unusual noises occur,
immediately shut OFF power to furnace. Check for
wiring errors or obstruction to blower.
GasSupply Pressure
Gas supply pressure should be within minimum and maximum
values listed on rating plate (minimum and maximum pressures,
refer to Table 5). Pressures are usually set by gas suppliers.
2. Remove the blower compartment door. Place a jumper
across furnace controls R to W. Replace blower
compartment door.
3. With gas OFF, connect manometer to tapped opening on
gas valve. Use manometer with a 0 to 15 inches of water
column range.
4. Turn gas ON and remove adjustment screw cover on gas
valve. Turn adjusting screw counterclockwise to decrease
manifold pressure and clockwise to increase pressure.
NOTE: Adjustment screw cover MUST be replaced on gas control
valve before reading manifold pressure and operating furnace.
5. Set manifold pressure to value as shown in Table 6 or
Table 7 under GAS SUPPLY AND PIPING section in this
manual.
6. When the manifold pressure is properly set, replace the
adjustment screw cover on the gas control valve.
7. Remove blower compartment door. Remove jumper wire
from thermostat connection on furnace control board.
Remove manometer connection from manifold pressure
tap, and replace plug in manifold.
8. Check for leaks at plug.
9. Replace the burner and blower compartment doors.
Fig_ 4_ !'i'i] Typical Gas Control Valve
iiiiiiiiiiiiiiuiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
RegulatorAdjustment
UnderCap
ManifoldGasPressureAdjustment
NOTE: Make adjustment to manifold pressure with burners
operating.
1. Remove the burner compartment door.
44001 105006
Specifications are subject to change without notice.
INLET
Inlet
Pressure _z
Tap 1/8 NPT o
39

NaturalGas Input RatingCheck
NOTE: The gas meter can be used to measure input to furnace.
Rating is based on a natural gas BTU content of 1,000 BTU's per
cubic foot. Check with gas supplier for actual BTU content.
1. Turn OFF gas supply to alt appliances and start furnace.
Use jumper wire on R to W for Heat.
2. Time how many seconds it takes the smallest dial on the gas
meter to make one complete revolution. Refer to Example.
NOTE: If meter uses a 2 cubic foot dial, divide results
(seconds) by two.
Example (BTUH)
Natural Gas No. of Time Per BTU Per
BTU Content Seconds Cubic Foot in Hour
1,000 3,600 48 75,000
To Determine the appliance kW input rate from a .05m3 test dial
that has been clocked at 80 seconds for one complete revolution.
Number of
seconds per seconds per Size of test dial
hour complete (.05m3) kW m3/h
3,600 80 .05 2.25
3. Remove jumper wire from R to W.
4. Relight all appliances and ensure all pilots are operating.
Per Hour Seconds
1,000 x 3,600 + 48 = 75,000 BTUH
Example (kW)
Number of
rotation
3,600 + 80 x .05 = 7.2 m3/h
2.25m3/h x 10.35 kWh/m3 =23.28 kW
23.28 x 3.412 = 79,431 BTU
Main BurnerFlameCheck
Ignitor Location
21/16(52.4)
5j1 ,8,-:.......
.............................CZ:......
\.[
NOTE: Flame sensor has a different orientation in all 050 models.
J_
TemperatureRiseCheck
The blower speed MUST be set to give the correct air temperature
rise through the furnace as marked on the rating plate.
Temperature rise is the difference between supply and return air
temperatures.
To check temperature rise,use the following procedure:
1. Place thermometers in supply and return air registers as
close to furnace as possible, avoiding direct radiant heat
from heat exchangers.
2. Operate furnace continuously for 15 minutes with all
registers and duct dampers open.
3. Take reading and compare with range specified on rating
plate.
4. If the correct amount of temperature rise is NOT obtained, it
may be necessary to change blower speed. A higher blower
speed will lower the temperature rise. A lower blower speed
will increase the temperature rise.
ChangingBlowerSpeed
Allow the furnace to run approximately 10 minutes then inspect the
main burner. See Figure 44.
Check for the following (Figure 44):
• Stable and blue flames. Dust may cause orange tips or
wisps of yellow, but flames MUST NOT have solid, yellow
tips.
• Flames extending directly from burner into heat
exchanger.
• Flames do NOT touch sides of heat exchanger.
If any problems with main burner flames are noted, it may be
necessary to adjust gas pressures, or check for drafts.
:i_;_i il Main Burner
rFace
10-10-78
NOTE: For Ignitor location see Figure 45.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
Turn OFF power to furnace before changing speed
taps.
NOTE:The speedtapsthatthe manufacturersets fromthe factory
for this product are based on a nominal 400 CFMper ton cooling
and the basic mid range onthe temperature rise for heating.
Since the manufacturer cannot establish the static pressure
that will be applied to the unit, it is the responsibility of the
installer dealer/contractor to select the proper speed tapsfor
the applicationwhen the unit is installed.
If it is necessary to change speeds, refer to steps below.
REDUCED FURNACE LIFE HAZARD
Failure to follow this caution may result in reduced
furnace life.
Use ONLY the blower motor speed taps insert
indicated in the Circulation Air Blower Data for
settin,c]air temperature rise.
40
44001 105006
Specifications are subject to change without notice.

Blower Speed Chart
Wire Color
Black
Orange*
Blue
Red
Motor Speed
High
Med-High
Medium
Low
* Med-High speed may not be provided on all models.
1. Refer to Furnace Wiring Diagram for location of the heating
and cooling speed taps located on the furnace control as
well as location of unused blower motor speed leads. Use
the chart (Table 8) to determine the blower motor speed
settings.
2. Change the heat or cool blower motor speed by removing
the motor lead from the "Heat" or "Cool" terminal and
replace it with the desired motor speed lead from the
"Unused Motor Lead" location. Connect the wire
previously removed from the "Heat" or "Cool" terminal to
the vacated "Unused Motor Lead" terminal.
3. If the same speed must be used for both heating and
cooling, remove the undesired motor speed lead from the
"Heat" or "Cool" terminal and connect that lead to the open
terminal at"Unused Motor Lead" location. Attach a jumper
between the "Heat" and "Cool" terminals and the remaining
motor speed lead.
Note: For motors with (4) speed leads, itwill be necessary
to tape off the terminal of the motor speed lead removed
from the "Heat" or "Cool" terminal with electrical tape since
an open terminal will not be available at the "Unused Motor
Lead" location.
Continuous-Fan Operation using"G"
Energizing the "G" terminal on the furnace control provides
continuous fan operation. This is done by connecting the G
terminal of the thermostat to the G terminal on the furnace control.
When the FAN switch is turned from auto to ON the fan will operate
continuously at "HEAT" speed. EAC wilt be energized in this
mode.
NOTE: In heating, the fan will turn off during furnace ignition and
warm up then restart at heating speed.
Hard Wired ContinuousFan Operation
A terminal is provided on the furnace control board located in the
circulating blower compartment for operation of the continuous fan
option. This connection is intended for the low speed motor tap,
and has a lower contact rating (8 amps) than the heat and cool
taps. When the low speed blower lead is connected to this
terminal, this wilt provide low speed blower operation whenever
the other two speeds (Heat or Cool) are not energized.
Thoroughly check the system after modification to ensure the
proper operation of the circulating air blower in all modes of
operation.
Separatespeedselectionsfor Heat,Cool,and
ContinuousFan
Connect low speed lead from circulating motor to the "Cont."
terminal at the furnace control. The appropriate motor leads
should already be connected to the "Heat" and "Cool" terminals.
Heating and Continuous Blower Speed the
Same
If it is necessary to operate the heating speed and continuous
blower speed using the same blower speed, connect a jumper
between the "Heat" and "Cont." terminals on the furnace control.
Note: There should be only ONE motor lead going to the "Heat"
and "Cont." terminals.
10. Furnace Maintenance
FIRE, EXPLOSION, OR CARBON MONOXIDE
HAZARDS.
Failure to follow this warning could result in
personal injury, death and/or property damage.
It is recommended that the furnace be inspected
and serviced on an annual basis (before the heating
season) by a qualified service technician.
ELECTRICAL SHOCK, FIRE OR EXPLOSION
HAZARD
Failure to follow this warning could result in
personal injury, death and/or property damage.
= Before servicing, disconnect all electrical
power to furnace.
= When servicing controls, label all wires prior to
disconnecting. Reconnect wires correctly.
= Verify proper operation after servicing.
See "User's Information Manual" and the "Service Manual".
44001 105006
41
Specifications are subject to change without notice.

11. Sequence of Operation & Diagnostics
The following is the normal operating sequence.
Cooling(Y) Request:
24VAC signals applied to Y & G terminals of FCB (furnace control board)
• Coot motor speed is energized after 5 second Coot Fan On Delay time.
Y & G signals removed from FCB
• Cool motor speed is de-energized after 90 second Coot Fan Off Delay time.
ContinuousCirculatingFan(G) Request:
24 VAC signal is applied to G terminal of the FCB.
• Heat motor speed is energized without delay.
G signal removed from FCB.
• Heat motor speed is de-energized after 5 second delay.
NOTE 1) Furnace de-energizes the fan during the heat exchanger warm-up period on a call for Heating that occurs during a G request
unless a blower motor lead is connected to the Cont terminal on the FCB, in which case see NOTE 2).
NOTE 2) Heating or Cooling requests received during a Fan request cause the fan speed to change to the appropriate heat or cool
speed after the Fan on Delay time expires. The fan returns to continuous circulating speed after the selected Fan Off Delay time
expires following toss of the Heating or Cooling request.
ContinuousCirculatingFanHard-Wired (Cont)Request:
Field selected low speed motor tap installed on "CONT" terminal.
• Low speed is energized when power applied to furnace. Operates at this speed continuously while there are no other
blower demands from furnace control. Fan demands from furnace control for heat, coot or "G" will override hard-wired speed tap.
NOTE 3) EAC is NOT active for hard-wired mode but IS active for fan demands from furnace control for heat, cool and "G".
Heating(W)Request:
Heating (W) Request:
• 24 VAC signal applied to W terminal of FCB.
• Inducer motor turns on and the pressure switch(es) close(s).
• Following a 15 second prepurge delay, after the pressure switches closes, the igniter begins a 17 second warm-up.
• The gas valve is energized, the main burners light and flame is sensed.
• The igniter is de-energized after the main burners ignite.
• FCB will delay blower operation for the 30 seconds timed from the opening of the gas valve.
W signal removed from FCB.
• The gas valve de-energizes and the main burners go out.
• The inducer runs for a 15 second postpurge period.
• The fan stays at Heat speed.
• The fan de-energizes after the selected Heat Fan Off Delay time expires, timed from the gas valve de-energizing.
HUMIDIFIER - The 24V HUM is energized when the pressure switch closes on acall for heat. The 115V HUM (called HUM on Control)
is energized when the inducer is energized.
ELECTRONIC AIR CLEANER - EAC is energized when there is a blower speed call. It is NOT energized when blower operates in the
hard-wired continuous fan mode.
NOTE 4) If a new Heating request arrives while the control is waiting in the Heat Fan Off Delay time, the FCB will wait for the selected
Heat Fan Off Delay then start a new heating cycle as long as the heat call remains.
42
44001 105006
Specifications are subject to change without notice.

HeatingRequestwithGasShutOff:
24 VAC signal applied to W terminal of FCB.
The FCB will attempt 4 cycles for ignition then go to soft lockout for 3 hours then try for ignition again as long as the heat call remains.
Power reset will clear lockout.
• Inducer motor turns on
• Following a 15 second prepurge delay, the igniter begins warm up.
• The igniter glows red-hot for 22 seconds, then turns off. The FCB flashes error code 6.
• The igniter stays off for 17 seconds, then begins to warm up again.
• The igniter glows red hot for 22 seconds then turns off. The FCB continues flashing error code 6.
• The igniter stays off for 17 seconds, then begins to warm up again.
• The igniter glows red hot for 22 seconds then turns off. The FCB continues flashing error code 6.
• The igniter stays off for 17 seconds, then begins to warm up again.
• The igniter glows red hot for 22 seconds then turns off. The FCB proceeds to soft lockout and stops flashing error code 6 and begins
flashing error code 6 + 1.
• The inducer motor de-energizes after a 15 second post purge.
ControlBoardDiagnosticCodes(See Figure46)
OFF = 24VAC or 115VAC is off, fuse is open
Heartbeat = Normal operation or no previous Diagnostic Code
ON SOLID = Soft Lockout - Furnace Control Error (1 hr delay)
1 Flash = Not used
2 Flashes = Pressure switch(es) closed when should be open
3 Flashes = Pressure switch open when should be closed
4 Flashes = Limit or roll-out switch open (tess than 2 minutes)
5 Flashes = Flame sensed out of sequence
6 Flashes = Failure to ignite or flame sense lost while running
6 + 1 Flashes = Soft Lockout - Max trials for ignition reached (3hr delay)
7 Flashes = Soft Lockout - Limit or roll-out switch open longer than 2 minutes (1 hr delay)
8 Flashes = Permanent Lockout - Gas valve relay contact stuck closed or miswired gas valve (power reset only)
10 Flashes = Line voltage (115VAC) polarity reversed. If twinned, refer to twinning kit instructions
* If status code recall is needed, briefly (2-3 seconds) remove then reconnect one limit switch wire (main or rollout) to display last stored
status code. Do not remove power or blower door before initiating status code recall or code will be lost. Code is automatically cleared
after 72 hours or upon power reset.
If code repeats immediately following power reset then replace control
(roll-out switch requires manual reset)
* Proper flame sense microamps: 0.7 microamps D.C. minimum
i iii ii i
Control Board
_<. DiagnosticLight
_ "_;; 115VAC
25-24-98
2.0 - 4.0 microamps nominal
44001 105006
43
Specifications are subject to change without notice.

]i]i]]
90+ Furnace
Up flow/H oriz ontal
Models
Dual Certified
*9U HX060F 12A2
*9U HX080J 12A2
*9U HX080J 16A2
*9U HX100 L20A2
* Denotes Brand
\
\
International Comfort Products, LLC
Lewisburg, TN 37091 U.S.A.
Save This Manual For Future Reference
44 44001 105006

Model Specifications (*9UHX)
TECHNICAL SUPPORT
Manufacturers Number (Mfr No-See Rating Plate)
ALL Models
General
GasType
Input(Btuh)
Output(Btuh)
TransformerSize (VA)
T'stat HeatAnti.cipator
Temp.Rise (F/_C)
Electrical(Volts/Hz) 115/60 115/60 115/60
RatingPlateAmps
Gas&Ignition
GasType
GasValve(Honeywell)
RegulationType
IgnitionType/Series
ManifoldPress.(inwc/Pa)
Std.MainOrifices(No/Size)
FurnaceControls
FurnaceControl(Type)
FurnaceControl On
(Timed-secs) Off
Combustion
Flue Outlet Size (Inches)
Std. Outlet Temp (less than) °5' No Elbows (°F!°C)
BlowerPressure5' No Elbows (in wc/Pa)
BlowerPressure40' +5-90 ° DVW Elbows (in wc/Pa)
Transition Bx Pressure 5' No Elbows (in wc/Pa)
TransitionBxPressure40' +5-90 ° DVW Elbows (in wc/
Pa)
Limits&Controls
RolloutSwitch (°F/°C)
LimitControlSetting (°F/°C)
Standard Pressure Sw. (Part No)
Blower Switch Pressure (Close) (in wc/Pa)
Blower Switch Pressure (Open) (in wc/Pa)
Transition Switch Pressure (Close) (in wc/Pa)
Transition Switch Pressure (Open) (in wc/Pa)
High Altitude Pressure Sw. (Part No)
Blower Switch Press (Close) (in wc/Pa)
Blower Switch Pressure (Open) (in wc/Pa)
Transition Switch Press (Close) (in wc/Pa)
Transition Switch Pressure (Open) (in wc/Pa)
BlowerData
BlowerSizeInchesDx W - in(mm)
MotorAmps/RPM
MotorType/H.R
Cap.MfdiVolts
FilterType&Size (qty.)Permanent- not supplied
CoolCap. (Tons)@.5 inwc L,ML, MHi& Hi
GasConversionKits
Natto Propane
PropanetoNat
**Order from Service Parts
NAHA003LP(1174906**)
NAHA004NG(1174907'_)
Specifications (*gUHX)
*9UHX060F12A *9UHX080J16A *9UHX100L20A
Nat./Propane
60,000
58,000
40
.50
30-60/17-33
10
Nat. Propane
3.5/872 10.0/2490
3/44 3/55
140/60
-3.2/-797
-2.9/-722
350/177
250/121
1174984
-2.3/-573
-2.1/-523
1175066
-2.10/-523
-1.90/-473
11xl 0(279x254)
7.2/1020
PSC/1/2
7.5/370
16x25x1(406x635x25)
11/2through 3
*9UHX080J12A
Nat./Propane
80,000
77,000
40
.50
35-65/19-36
115/60
10.5
Nat. Propane Nat.
VR8205S
SNAP
Hot_;urface
3.5/872 10.0/2490 3.5/872
4/44 4/55 4/44
Integrated
3O
60,100,140,180
140/60
-1.9/-473
-2.0/-498
-3.2/-797
-2.9/-722
350/177
250/121
1174985
-12/-299
-1.1/-274
-2.3/-573
-2.1/-523
1175067
-1.20/-299
-1.10/-274
-2.10/-523
-1.90/-473
11x10(279x254)
5.7/1075
PSC/1/3
10_70
16x25x1(406x635x25)
11/2through3
11x10(279x254)
16x25x1(406x635x25)
21/2through4
Nat./Propane
80,000
77,000
40
.50
30-60/17-33
13.6
Propane
10.0/2490
4/55
140/60
-1.9/-473
-2.0/-498
-3.2/-797
-2.9/-722
350/177
250/121
1174985
-1.2/-299
-1.1/-274
-2.3/-573
-2.1/-523
1175067
-1.20/-299
-1.10/-274
-2.10/-523
-1.90/-473
10/1050
PSC/1/2
10/370
Nat./Propane
100,000
96,000
30-60/17-33
Nat.
3.5/872
5/44
140/60
-2.3/-573
-2.4/-598
-3.3/-822
-2.9/-722
350!177
190/88
1174986
-1.5/-374
-1.3/-324
-2.3/-573
-2.1/-523
1175068
-1.50/-374
-1.30/-324
-2.10/-523
-1.90/-473
11xl 0(279x254)
11.5/935
PSC/3/4
40/370
16x25x1(406x635x25)
31/2through5
40
.50
14.8
Propane
10.0/2490
5/55
(2)
44001 105006 Specifications are subject to change without notice. 45

CIRCULATION AIR BLOWER DATA (CFM#)
*9UHXO60F12 (1)(2) * Denotes Brand *9UHXO80J16 (1)(2) * Denote Brand
Speed HI MED H MED L LO
Tap
in wc Pa CFM Lls CFM Lls CFM Lls CFM Us
0.1 25 1478 697 1204 568 901 425
0.2 50 1418 669 1154 545
_" 0.3 75 1350 637 1103 521
O_
_ 0.4 100 1280 604 1053 497
0.5 125 1201 567 993 469
E 0.6 149 1116 527 924 436
0.7 174 1023 483
X
W 0.8 199 931 439
0.9 224
1 249 iiiiiiiiiiiiiii!_!_iiiiiiiiiiiiiiii!i!ii!!iiiiiiiiiii!_!_ii!ii!ii!ii!i!iiiiiiiiiiiiiiiiiiiiiiili_i_i!ii!ii!ii!ii!ii!ii!ii!iliiiiii;_i!i!_i_!:i!:i!:i!:i!:i!:i!ii!iiiiiiiiiiiiiiiiii_:_i_ii!i:ii:ii:ii:ii:ii:ii:illiiiiii;ii!i!_i_iiiiiiiiiiiiiiiiiiiliiiiiiiiiiiiiiili:!!_!_!_!i:!ii!!i!!i!!i!!i!!i!!i!!i!iiiiiiiiiiiiiiiiii!i!_iiiiiiiiiiiliiiiiii!!i
*9UHXO80J12 (1)(2) * Denotes Brand
._nd_,.ee_ HI MED H MED L LO
Tap
in wc Pa CFM Us CFM Lls CFM Lls CFM Us
-_ 0.1 25 1456 687 1326 626
0.2 50 1440 680 1312 619
_ 0.3 75 1420 670 1280 604
on
04 lOO13796511241586
1- 0.5 125 1325 625 1209 571
0.6 149 1261 595
0.7 174 1208 570
w 0.8 199
0.9 224
1 249
NOTE:
# CFM - Cubic Feet Per Minute airflow. Filter required for each
return-air inlet.
Airflow perfomance includes 1" (25.4mm) washable [600 FPM (3.0
m/s) max] filter media.
(1) Data Based on Bottom Only or One Side return.
(2) Gray area is above maximum temperature rise range.
Speed HI MED H MED L LO
Tap
in wc Pa CFM Lls CFM Lls CFM Us CFM Lls
-_ 0.1 25 2032 959 1690 798 1246 588
0.2 50 1952 921 1650 779 1250 590
I:1._" 0.3 75 1874 884 1601 756 1226 579
on
'_ _" 0.4 100 1785 842 1533 723 1187 560
0.5 125 1688 797 1462 690
E 0.6 149 1593 752 1381 652
0.7 174 1482 699 1287 607
X
w 0.8 199 1360 642 1182 558
0.9 224 1231 581
1 249
*9UHXlOOL20 (1)(2) * Denotes Brand
._nd_,.ee_ HI MED H MED L LO
Tap
in wc Pa CFM Lls CFM Lls CFM Lls CFM Lls
-_ 0.1 25 2240 1057 2137 1008 1993 941 1820 859
0.2 50 2163 1021 2062 973 1934 913 1768 834
}-
a. _" 0.3 75 2083 983 1992 940 1872 883 1722 813
on
_"O" 0.4 100 2002 945 1916 904 1801 850 1656 782
1- 0.5 125 1912 902 1833 865 1723 813 1590 750
0.6 149 1821 859 1745 824 1636 772 1513 714
0.7 174 1727 815 1654 781 1547 730
w 0.8 199 1618 764 1551 732
0.9 224 1502 709
1 249 _02
MAX CFM's for Factory Washable Filters
Filter Size (in/mm) CFM I_/s
14" X 25" / 356 x 635 1400 661
16" X 25" / 406 x 635 1600 755
20" X 25" / 508 x 635 2000 944
24"X25"/610x635 2500 1180
Max CFM based on 600 FPM (3.0 m/s)
NOTE: Disposable filters are typically rated at 300 FPM (1.5 m/s). These filters
only allow half the airflow when compared to 600 FPM (3.0 m/s) filters.
46 Specifications are subject to change without notice. 44001105006

Wiring Diagram (*9UHX)
/F
COOL ON DELAY: 5 SEC
COOL OFF DELAY: 90 SEC
HEAT ON DELAY: 30 SEC
qo u
EAC + HUM 1.0AMAX
COMBINED
OFF-DELAY
O
=<
LU
C_
£3
<
=J
HEAT
FURNACE CONTROL J1
2 o
%
8
HEAT
OFF-DELAY
OFF-DELAY
HEAT
5'
g
OFF-DELAY
HEAT
o
CIRCUIT BOARD
PRINTED
NOTE #5 _3
D
n"
<
U
<O
=_z
v'©
O_
o_
IW
03o3
_2
1-111
WL._
<
0
a
z
_.9.
1-
111
Z
Z
0
0
I
_0 z
H--.Z. =
o_
u
NEUTRALS
DIAGNOSTIC _ <'
LED
8
RBR£8 zd
oo Y 8
>> 5_
8
O _ _s
HUM R C W Y G
HEAT 24VAC
OFF-DELAY
44001 105006 Specifications are subject to change without notice. 47

Parts (*9UHX)
cb,
ed
I
t.O
b_
\\\\\\\\\\\\\\\\\\\\\\\\
Cb
\\
I
ed
I
t.O
ed
/
rn
Q..
t_
/
>
/
v
v
E
-O
O
E
E
O
O
>
n-
j-r
b_
O
_ ............................................................................................................................_}_ ......................................................................................................................................?;7
jj j _, f: ,j N {
. ) _"
48 Specifications are subject to change without notice. 44001 105006

I Replacement Parts - *9UHX I
Models - *9UHX060F12A2, *9UHX080J12A2, *9UHX080J16A2 & *9UHX100L20A2 (Natural Gas) *DenotesBrand
Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
Key Description *gUHX
No. Functional 100L20A060F12A 080J12A 080J16A
1 Heat Exchanger, Primary 1 - -
2 Heat Exchanger, Secondary 1 - -
3 Motor, Blower 1 - -
4 Mount, Motor kit 1 1 -
5 Wheel, Blower 1 1 1 1
6 Transformer 1 1 1 1
7 Capacitor, 10Mfd., 370V 1 1
7.5Mfd., 370V 1 - -
40Mfd., 370V - - 1
8 Control, Fan Timer 1 1 1 1
9 Switch, Interlock 1 1 1 1
10 Switch, Pressure 1 - -
11 Blower, Exhaust 1 1 1
12 Valve, Gas Nat. 1 1 1 1
13 Sensor, Flame 1 1 1 1
14 Igniter 1 1 1 1
15 Orifice, Burner #44 Nat. 3 4 4 5
16 Switch, Limit (Rollout) 2 2 2 2
17 Burner Assembly 1 - -
18 Switch, Limit (Main) 1 - -
Part
Number
1012854
1012858
1012862
1174980
1174981
1174982
1172487
1174983
1172488
1172489
1014822
1014823
1011420
1172810
1171729
1171728
1171982
1172550
1171981
1174984
1174985
1174986
1172823
1172824
1175705
1172827
1172533
1013797
1013103
1172965
1172966
1172967
1009169
1320361
1008445
1 1
- - 1
1 1
- - 1
1
- 1
- - 1
- 1 1
1 1
- - 1
- - 1
1 1
- - 1
1 1
- - 1
*See Table below for bellyband location on motor
Bellyband Location
on Motor
Model A
*9UHX inches mm
060F12A2 1.38 35.1
080J12A2 1.81 46
080J16A2 1.81 46
100L20A2 1.65 41.9
44001 105006 Specifications are subject to change without notice. 49

I Replacement Parts - *9UHX I
Models - *9UHX060F12A2, *9UHX080J12A2, *9UHX080J16A2 & *9UHX100L20A2 (Natural Gas) *DenotesBrand
Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
Key Description *gUHX
No. Non-Functional 100L20A080J12A
A Panel, Top
B Gasket, Top Panel
F Partition, Blower
H Housing, Blower 1 1
J Panel, Blower Cutoff 1 1
K Hanger, Blower 2 2
L
Door, Blower (Comfortmaker only)
(Comfortmaker only)
(Comfortmaker only)
(Hell only)
(Hell only)
(Hell only)
(Tempstar only)
(Tempstar only)
(Tempstar only)
M
Bracket, Door Filler
N
Door, Front (Comfortmaker only)
(Comfortmaker only)
(Comfortmaker only)
(Heil only)
(Heil only)
(Heil only)
(Tempstar only)
(Tempstar only)
(Tempstar only)
o
Strap, Capacitor
P Transition Assembly
Q Gasket, Blower 1 1
R Board, Insulating
S Box, Collector
T Gasket, Transition
U Gasket, Collector Box
Part
Number
1012866
1012867
1012868
1012603
1012604
1012605
1172005
1172006
1172007
1172969
721020008
1012328
1173009
1173010
1173072
1173012
1173013
1173075
1172940
1172946
1172950
1172232
1172233
1172234
1013148
1013149
1013150
1013145
1013146
1013147
1012792
1012793
1012794
1170643
1014315
1172228
1172229
1172230
1014425
1012418
1012419
1012420
1012244
1012245
1012246
1013080
1013083
1013084
1012594
1012595
1012596
060F12A
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
080J16A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
50 Specifications are subject to change without notice. 44001 105006

I Replacement Parts - *9UHX I
Models - *9UHX060F12A2, *9UHX080J12A2, *9UHX080J16A2 & *9UHX100L20A2 (Natural Gas) *DenotesBrand
Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
Key Description *gUHX
No. Non-Functional 100L20A060F12A 080J12A 080J16A
V Partition, Front Heat Exchanger 1 - -
W Gasket, Attachment Plate 2 - -
X Cover, Junction Box 1 1 1 1
Y Box, Junction 1 1 1 1
BB Manifold 1 - -
CC Bottom, Burner Box 1 - -
DD Baffle, Burner Box 1 - -
EE Top, Burner Box 1 - -
FF Bracket, Manifold Support 2 2 2 2
GG Bracket, Burner Box Side 2 2 2 2
HH Bracket, Control Mounting 1 1 1 1
JJ Tube, Sensor 1 - -
KK Trap, Drain Assembly 1 1 1 1
LL Sightglass Comfortmaker & Heil 1 1 1 1
Tempstar Only 1 1 1 1
NN Retainer Clip 1 1 1 1
QQ Gasket, Trap 1 1 1 1
RR Bracket, Trap 1 1 1 1
SS Gasket, Trap Brkt 1 1 1 1
TT Tube, Drain Coll. Box 5/8" ID 1 1 1 1
UU Tube, Drain Tee 1/2" ID 1 1 1 1
W Tube, Relief 1 1 1 1
W Drain Vent 1 1 1 1
W
YY Tee, Drain 1171915 1 1 1 1
ZZ Sight Glass 1172768 1 1 1 1
Part
Number
1012648
1012651
1012653
1012543
1012544
1012545
1012350
1172860
1012277
1012278
1012279
1172848
1172849
1172850
1012338
1012339
1012340
1013702
1013703
1013704
1012377
1012532
1172845
1172240
1172238
1172241
1171917
1013235
1013236
1175788
1013701
1171986
1171987
1172245
1171989
1172012
1014003
1 1
- - 1
2 2
- - 1
1 1
- - 1
1 1
- - 1
1 1
- - 1
1 1
- - 1
1 1 1
1 1 1
44001 105006 Specifications are subject to change without notice. 51

I Replacement Parts - *9UHX I
Models - *9UHX060F12A2, *9UHX080J12A2, *9UHX080J16A2 & *9UHX100L20A2 (Natural Gas) *DenotesBrand
Replacement part supplied will be current active part. For parts not listed, consult place of purchase.
Key Description
No. Non-Functional
)( PART NOT ILLUSTRATED
)( Door Screws
)( Door Screw Grommets
)( Harness, Wire
)( Clamp, Hose
)( Grommet, Vent
)( Grommet, Vinyl ( Gas Inlet)
)( Coupling, Air Intake
)( Coupling, Discharge
)( Bushing, Strain Relief
)( Gasket, Air Intake
)( Clamp, Hose 5/8"
)( Clamp, Hose 3/4"
)( Tube, 1/2" ID Elbow
)( Coupling, 1/2" Barbed
)( Tube, 1/2" ID Drain
)( Tubing, 5/8" ID Drain
)( Connector, 3/4" x 1/2"
)( Elbow, 1/2" CPVC street
)( Plate, Cover
)( Gasket, Cover Plate
)( Trap, Drain Tee
)( Connector, Relief Tube
)(
Tube, Relief Ext. 1172239 1 1 1 1
)(
Grommet, Casing 1171997 1 1 1 1
)(
Cap, Drain Tee 1172255 1 1 1 1
)(
Clamp, Tee Cap 1172256 1 1 1 1
Installation Manual 44001105006 1 1 1 1
)(
User's Manual 44102201200 1 1 1 1
)(
Part *9UHX
Number 060F12A 080J12A 080J16A 100L20A
1014488 4 4 4 4
1171990 4 4 4 4
1175880 1 1 1 1
1013830 2 2 2 2
1012697 1 1 1 1
1009535 1 1 1 1
1012284 1 1 1 1
1002522 1 1 1 1
1945287 1 1 1 1
1012583 1 1 1 1
1012975 4 4 4 4
1012976 2 2 2 2
1171992 2 2 2 2
1171993 1 1 1 1
1171991 1 1 1 1
1171994 1 1 1 1
1171995 1 1 1 1
1171996 1 1 1 1
1171999 1 1 1 1
1172000 1 1 1 1
1171916 1 1 1 1
1171998 1 1 1 1
52 Specifications are subject to change without notice. 44001 105006