Napoleon 9500 series User manual

IOM
W415-0973 / B / 08.28.13
UM
PG
57
$10.00
INSTALLER: PLEASE FAMILIARIZE YOURSELF WITH VENTING/DRAINING SECTIONS OF
THIS MANUAL BEFORE PROCEEDING WITH THE INSTALLATION. LEAVE
THIS MANUAL WITH THE APPLIANCE FOR FUTURE REFERENCE.
CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE.
INSTALLATION AND
OPERATING INSTRUCTIONS
Wolf Steel Ltd., 24 Napoleon Rd., Barrie, ON, L4M 0G8 Canada /
103 Miller Drive, Crittenden, Kentucky, USA, 41030
Phone [phone] • Fax [phone] • www.napoleonheatingandcooling.com • [email protected]
SAFETY INFORMATION
ELECTRICAL SHOCK, FIRE OR
EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death or
property damage.
Improper servicing could result in
dangerous operation, serious injury, death
or property damage.
- Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
- 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.
- Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a
neighbour’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the fire
department.
!WARNING !
Patent Pending
MANUFACTURER RESERVES THE RIGHT TO DISCONTINUE, OR CHANGE
AT ANY TIME, SPECIFICATIONS OR DESIGNS WITHOUT NOTICE AND
WITHOUT INCURRING OBLIGATIONS.
H1.13
CERTIFIED TO ANSI Z21.47b / CSA 2.3b-2008
9500 SERIES
SINGLE STAGE MULTI POSITION HIGH EFFICIENCY
(CONDENSING) FORCED AIR GAS FURNACE

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TABLE OF CONTENTS
1.0 INTRODUCTION 3
2.0 SAFETY SYMBOLS AND WARNINGS 4
2.1 SAFETY RULES 5
2.2 CODES 6
3.0 FURNACE SIZING 8
4.0 LOCATION OF UNIT 9
4.1 GENERAL GUIDELINES 9
4.2 OTHER CONSIDERATIONS 9
4.3 INSTALLATION IN UPFLOW, DOWNFLOW OR HORIZONTAL POSITIONS 10
4.4 AIR CONDITIONING 11
5.0 COMBUSTIBLE CLEARANCES 11
6.0 DUCTWORK 12
6.1 DUCTWORK STEPS 13
7.0 VENTING AND COMBUSTION PIPING 14
7.1 ACCEPTABLE MATERIALS IN CANADA 14
7.2 ACCEPTABLE MATERIALS IN UNITED STATES 14
8.0 NON-DIRECT VENT FURNACE INSTALLATIONS USING INDOOR COMBUSTION AIR (ONE PIPE SYSTEM) 15
8.1 DETERMINING COMBUSTION AIR 16
8.1.1 CASE 1: FURNACE LOCATED IN A UNCONFINED SPACE 16
8.1.2 CASE 2: FURNACE LOCATED IN A CONFINED SPACE 16
8.1.3 CASE 3: FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR FROM ATTIC OR CRAWL SPACE 17
8.1.4 CASE 4: FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR DUCTED HORIZONTALLY 18
8.1.5 CONNECTION TO FURNACE NON-DIRECT VENT 18
9.0 VENTING GUIDELINES 19
9.1 VENT TERMINATION 20
9.2 IN CANADA 21
9.3 IN UNITED STATES 21
9.4 FURNACE VENTING INSTALLATIONS 22
9.4.1 NON-DIRECT VENT INSTALLATION USING INDOOR COMBUSTION AIR (ONE PIPE SYSTEM) 22
9.4.2 DIRECT VENT INSTALLATION USING OUTDOOR COMBUSTION AIR (TWO PIPE SYSTEM) 22
9.4.3 COMBUSTION AIR 22
10.0 TERMINATIONS 23
10.1 COMBUSTION AIR 23
10.2 EXHAUST 23
10.3 CONCENTRIC VENTING KIT 23
10.4 CONCENTRIC VENT TERMINATION INSTALLATION INSTRUCTIONS 23
10.5 LOCATION 23
10.6 MULTIPLE VENTING 24
11.0 ROUTING OPTIONS 27
11.1 EXHAUSTER ROTATION INSTRUCTIONS & PRESSURE SWITCH MOUNTING 27
11.2 CONDENSATE DRAINS 28
11.3 PREPARATIONS FOR VENT AND DRAINING OPTION 28
11.4 DRAIN HOSE INSTALLATION 32
11.4.1 DRAIN PIPING 32
11.4.2 PRIMING CONDENSATE TRAP 33
11.5 ALTERNATE CONDENSATE DRAIN PIPING INSTALLATION USING PVC OR CPVC 33
11.6 CONDENSATE NEUTRALIZERS 34
12.0 GAS SUPPLY AND PIPING 35
12.1 GAS SUPPLY 35
12.2 GAS PIPING 35
12.3 GAS INLET PRESSURE 36
12.4 LEAK TESTING 36
12.5 PURGING GAS LINES 36
13.0 CONVERSIONS 37
13.1 HIGH ALTITUDE CONVERSION 37
13.2 CONVERSION STEPS 37
13.3 CHECKING THE INLET GAS PRESSURE 37
13.4 SETTING THE MANIFOLD GAS PRESSURE 38
13.5 CHECKING FURNACE INPUT 39
14.0 ELECTRICAL SPECIFICATIONS 40
14.1 ELECTRICAL WIRING AND CONNECTIONS 40
14.2 FURNACE CONNECTION 41

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1.0 INTRODUCTION
NOTE: Changes, other than editorial, are denoted by a vertical line in the margin.
15.0 LOW VOLTAGE WIRING 42
15.1 THERMOSTAT LOCATION 42
16.0 OPTIONAL ACCESSORIES (FIELD SUPPLIED/INSTALLED) 43
16.1 ELECTRIC AIR CLEANER 43
16.2 POWER HUMIDIFIER 43
16.3 EMERGENCY HEAT MODE, X13 ECM BLOWER MOTOR 43
17.0 STARTUP PROCEDURES 44
17.1 TO START THE FURNACE 44
17.2 TO SHUT DOWN THE FURNACE 45
17.3 SEQUENCE OF OPERATION 45
18.0 AIR FLOW 46
18.1 TEMPERATURE RISE CHECK 46
18.2 CALCULATING AIR FLOW 47
18.3 CONTINUOUS FAN OPERATION 47
19.0 MAINTENANCE AND TROUBLESHOOTING 48
19.1 AIR FILTER 48
19.2 LUBRICATION 48
19.3 TROUBLESHOOTING FLOWCHART 49
19.4 DIAGNOSTIC CODES FOR STATUS LED 50
19.5 FAULT CODE HISTORY 50
20.0 WIRE DIAGRAM FOR SINGLE STAGE FURNACE WITH X13 ECM, AND PSC 51
21.0 WARRANTY 52
22.0 SINGLE STAGE REPLACEMENT PARTS LIST 53
23.0 SERVICE HISTORY 55
24.0 NOTES 56
H4.0.2
This high efficient gas fired single stage condensing furnace is an upflow, downflow, horizontal left and right
warm air furnace suitable for residential and light commercial heating applications with inputs from 45,000 to
120,000 Btu/hr.
This high efficient furnace series is CSA certified as a Category IV indirect or direct vent central forced air
furnace. When installed as a direct vent furnace, all combustion air is supplied to the furnace burners through the
air intake system. (See Section 7, “Ventilation and Combustion Piping.”)
All models may be fired by natural or LP gas (propane), and may be field converted from natural gas to LP gas
using Conversion Kit W370-0018.
The furnace is shipped completely assembled except for the condensate drain trap assembly. Please inspect
for damage when the furnace is unpacked.
H1.22
IMPORTANT:
PLEASE READ THIS MANUAL CAREFULLY
AND KEEP IN A SAFE PLACE FOR FUTURE
REFERENCE BY A SERVICE TECHNICIAN.
ATTENTION:
UPFLOW VENTING RIGHT, MUST DRAIN ON
LEFT SIDE.

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2.0 SAFETY SYMBOLS AND WARNINGS
H6.0
IMPORTANT:
READ THE FOLLOWING INSTRUCTIONS COMPLETELY BEFORE INSTALLING!
H3.3
WARNING !
!
IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE
OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY OR
LOSS OF LIFE.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS, OR
OTHER COMBUSTIBLE MATERIALS IN THE VICINITY OF THIS ORANY OTHER APPLIANCE.
WHAT TO DO IF YOU SMELL GAS
• DO NOT TRY TO LIGHT ANYAPPLIANCE.
• DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE IN YOUR
BUILDING.
• IMMEDIATELY CALLYOUR GAS SUPPLIER FROM A NEIGHBOR’S PHONE, ORACEL-
LULAR PHONE FROMALOCATION WELLAWAY FROM THE BUILDING. FOLLOW THE
GAS SUPPLIER’S INSTRUCTIONS.
• IF YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE DEPARTMENT.
• DO NOT RE-ENTER THE BUILDING UNTIL AUTHORIZED TO DO SO BY THE GAS
SUPPLIER OR THE FIRE DEPARTMENT.
PROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE CAN
CAUSE INJURY, PROPERTY DAMAGE OR LOSS OF LIFE. REFER TO THIS MANUAL.
INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER,
SERVICE AGENCY OR THE GAS SUPPLIER.
H3.3.1
Understand and pay particular attention to the words DANGER, WARNING, and CAUTION and the following
defined symbols are used throughout this manual to notify the reader of potential hazards of varying risk levels.
DANGER
! !
INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL
RESULT IN DEATH OR SERIOUS INJURY.
INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED,
COULD RESULT IN DEATH OR SERIOUS INJURY.
WARNING !
!
INDICATES A POTENTIAL HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, MAY
RESULT IN MINOR OR MODERATE INJURY. IT MAY ALSO BE USED TO ALERT
AGAINST UNSAFE PRACTICES.
CAUTION !
!

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2.1 SAFETY RULES
H3.4
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED SERVICE
PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND OPERATION OF
THIS FURNACE. READ THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY
RESULT IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE,
POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, CARBON MONOXIDE
POISONING, EXPLOSION, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
WARNING !
!
H6.1
1. Use this furnace only with type of gas approved for this furnace. Refer to the furnace rating plate.
2. Install this furnace only in dry indoor locations (protected from weather).
3. Provide adequate combustion and ventilation air to the furnace space as specified in Section 7 of this
manual, “Ventilation and Combustion Piping.”
4. Combustion products must be discharged outdoors. Connect this furnace to an approved vent system only,
as specified in Section 7 of this manual, “Venting and Combustion Piping.”
5. 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 Section 12 of this manual, “Gas Supply
and Piping.”
6. 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, listed on the furnace rating plate, and as
specified in Sections 3, 6, and 18 of this manual, “Furnace Sizing,” “Ductwork,” and “Airflow.”
7. When a furnace is installed so that the supply ducts carry air circulated by the furnace to areas outside the
space containing the furnace, the return air shall also be handled by duct(s) sealed to the furnace casing and
terminating outside the space containing the furnace. (Furnace for heating the home located in the attached
garage, for example).
8. A gas-fired furnace for installation in a residential garage must be installed so that the burners and ignitor
are no less than 18” (457 mm) above the floor. The furnace must be located, or protected to avoid physical
damage by vehicles. (See safety warning).
9. This furnace may be used for heating of buildings or structures under construction provided that:
• The furnace is permanently installed with all electrical wiring, piping, venting and ducting installed per
these installation instructions.
• A room thermostat must control the furnace. The use of fixed jumpers that will provide continuous
heating is not allowed.
• The return air duct must be provided and sealed to the furnace casing, and terminate outside the
space containing the furnace.
• Return air temperature range between 55°F (13°C) and 80°F (27°C) must be maintained.
• Air filters must be installed in the system and must be maintained during construction.
• Air filters used to clean the circulating air during the construction process must be either replaced or
thoroughly cleaned prior to occupancy.
• The input rate and temperature rise must be set per the furnace rating plate.
• One hundred percent (100%) outdoor air must be provided for combustion air requirements during
construction. This is to minimize the corrosive effects of adhesives, sealers and entrainment of
drywall dust into combustion air, which can cause fouling and plugging of furnace components.
• The furnace heat exchanger, components, duct system, and evaporator coils must be thoroughly
cleaned following final construction clean-up.
• All furnace operating conditions (including ignition, input rate, temperature rise and venting) must be
verified according to these installation instructions.

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2.2 CODES
H6.2
1. This furnace must be installed:
a. In accordance with all local codes, by-laws and regulations by those authorities having jurisdiction.
b. In Canada, this furnace must be installed in accordance with the current CAN/CGA -B149.1 and .2
Natural Gas and Propane, and the National Electric Code (NEC) NFPA 70.
c. In the United States, this furnace must be installed in accordance with the current ANSI Z223.1 (NFPA
54) National Fuel Gas Code.
2. Electrical connections must be made in accordance with:
a. Any applicable local codes, by-laws and regulations.
b. Canada: current edition of CAN/CSA C22.1 and C22.2, Canadian Electrical Code (Part 1 and 2).
c. United States: current edition of ANSI/NFPA 70, National Electrical Code.
Codes and additional information may be obtained from:
Canadian Standards Association American Gas Association
5060 Spectrum Way 400 North Capitol Street, NW, Suite 450
Mississauga, Ontario, L4W 5N6 Washington DC, 20001
Phone: [phone] Phone: [phone]
website: www.csa.ca website: www.aga.org
National Fire Protection Association
1 Batterymarch Park
Quincy, MA, 02169-7471
Phone: [phone]
website: www.nfpa.org
H3.5
DO NOT INSTALL THIS FURNACE IN A MOBILE HOME! THIS FURNACE IS NOT
APPROVED FOR INSTALLATION IN A MOBILE HOME. DOING SO COULD CAUSE FIRE,
PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
THE FURNACE CONTAINS FOIL COVERED FIBERGLASS INSULATION. INHALATION OF
FIBERGLASS PARTICLES IS ASSOCIATED WITH RESPIRATORY DISEASE INCLUDING
CANCER.
NATURAL GAS AND PROPANE ARE NORMALLY ODORIZED BY THE FUEL SUPPLIER. IN
SOME CASES, THE ODORANT MAY NOT BE PERCEIVABLE. INSTALLATION OF UL AND
ULC RECOGNIZED FUEL GAS DETECTORS INSTALLED IN ACCORDANCE WITH THEIR
MANUFACTURER’S INSTRUCTIONS IS RECOMMENDED AS AN ADDITIONAL MARGIN OF
SAFETY.
THE EXHAUST GASES FROM THIS FURNACE CONTAIN CHEMICALS WHICH ON
SOME OCCASIONS MAY INCLUDE CARBON MONOXIDE. CARBON MONOXIDE IS AN
ODORLESS, TASTELESS, CLEAR COLORLESS GAS WHICH IS HIGHLY TOXIC. EVEN
LOW CONCENTRATIONS ARE SUSPECTED OF CAUSING BIRTH DEFECTS AND OTHER
REPRODUCTIVE HARM.
UL AND ULC RECOGNIZED CO DETECTORS ARE RECOMMENDED FOR ALL BUILDINGS
EQUIPPED WITH FOSSIL FUEL BURNING APPLIANCES. ALL CO DETECTORS SHOULD
BE INSTALLED IN ACCORDANCE WITH THEIR MANUFACTURER’S INSTRUCTIONS AND
APPLICABLE LOCAL BUILDING CODES.
FIRE, EXPLOSION OR CARBON MONOXIDE POISONING HAZARD!
FAILURE TO REPLACE WITH PROPER CONTROL COULD RESULT IN FIRE, EXPLOSION
OR CARBON MONOXIDE POISONING.
REPLACE GAS VALVE ONLY WITH THE SAME MODEL NUMBER OR AS SPECIFIED BY THE
MANUFACTURER.
WARNING !
!

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FIGURE 1 - FURNACE DIMENSIONS
TOP LEFT SIDE RIGHT SIDE
1 1/2"
(38mm)
3/4"
(19mm)
0"
Top
NOTES:
S - Service clearance 24 inches (610mm) or more.
C - Combustible oor (but not carpet or non-ceramic tile).
All models approved for closet installation.
Plenum
1/2" (13mm)
on all sides
0"
0"
0"
0"
H12.11.2
UPFLOW DOWNFLOW HORIZONTAL
TOP 0 0 0
PLENUM TOP 1/2" (13mm) 0 1/2" (13mm)
FRONT 0* 0* 0*
BACK 0 0 0
SIDES 0 0 0**
BOTTOM 0*** 0 0
FLUE PIPE 0 0 0
ENCLOSURE CLOSET CLOSET CLOSET
*24" (610mm) REQUIRED FOR SERVICE
**SUPPLY AIR OUTLET / 1/2" (13mm) RETURN AIR INLET
***CERTIFIED FOR CLOSET INSTALATION ON COMBUSTIBLE FLOORING.
H3.6
WARNING !
!
WHEN THIS FURNACE IS INSTALLED IN A RESIDENTIAL GARAGE, IT MUST BE
INSTALLED SO THE BURNERS AND IGNITION SOURCE ARE LOCATED NO LESS THAN
18” (457 mm) ABOVE THE FLOOR TO PREVENT THE RISK OF IGNITING FLAMMABLE
VAPORS WHICH MAY BE PRESENT IN THE GARAGE.
THE FURNACE MUST BE LOCATED OR PROTECTED TO AVOID PHYSICAL DAMAGE BY
VEHICLES.
FAILURE TO HEED THESE WARNINGS CAN CAUSE A FIRE OR EXPLOSION, RESULTING
IN PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
TABLE A - FURNACE DIMENSIONS
INPUT OUTPUT
HIGH Width Depth Height Supply Air Return Air
K/Btu/hr K/Btu/hr A B C (F x G) (D x E)
45 43
17 1/2”
(445mm) 29 1/2”
(749mm)
32 7/8”
(835mm)
16 1/4” x 19 5/8”
(413mm x 499mm) 14” x 23”
(356mm x 584mm)
60 57
80 76
100 95 22 1/2”
(572mm)
21 1/4” x 19 5/8”
(540mm x 499mm)
120 114
H12.6.3
TABLE B - MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS

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3.0 FURNACE SIZING
H7.0.2
The maximum hourly heat loss for each heated space shall be calculated in accordance with the procedures
described in the manuals of the Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI), or
by any other method which is suitable for local conditions, provided the results obtained are in substantial
agreement with, and not less than those obtained using the procedure described in their manuals.
In the United States, “Manual J - Load Calculation,” published by the Air Conditioning Contractors of America,
describes a suitable procedure for calculating the maximum hourly heat loss.
If the installation is a retrofit application, do not rely on the capacity of the existing heating equipment as a
method to size the new furnace. Many of the heat transfer multiples listed in earlier versions of load calculation
manuals were much higher than those listed in more recent editions. It is possible that energy saving
measures have been completed since the installation of the existing furnace. This might include additional
insulation in the attic or walls, the application of sprayed foam insulation, the addition of storm windows and
doors, weather-stripping, caulking, etc.
Many of the older furnaces were equipped with large belt drive blower systems, operating at low RPM’s. If
replacing an existing furnace, be sure that the existing ductwork can handle the amount of airflow necessary
for a reasonable temperature rise. Most older gas furnaces operated with a system temperature rise of 70 -
100°F (39 - 56°C). This furnace is designed to be operated with a system temperature rise (∆T) of 35 - 65°F
(20 - 36°C). If the furnace selected has an identical output
capacity as the original furnace, a substantial increase in
system air flow will be necessary. See Table 1 and the airflow
characteristics in Section 18 of this manual, “Airflow”.
Existing ductwork should be assessed for its air handling
capabilities.
The “Equal Friction Chart,” as published by ASHRAE and HRAI, is the basis for the various air duct
calculators available through heating supply companies. Following the air velocity guide lines, according to
the “Equal Friction Chart,” or a slide rule air duct calculator, a typical 6" (152mm) round duct has a capacity of
approximately 100 cfm.
H
02
NOTE:
The return air system is equally as important as the supply air system. An under-sized
return air system will prevent sufficient quantities of air from reaching the supply air
system and will consequently reduce the service life of the furnace and its components.
H12.15.5
TABLE 1 - RANGE OF TEMPERATURE RISE
Furnace Models Temperature Rise
ALL 35 - 65°F (20 - 36°C)

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4.0 LOCATION OF UNIT
4.1 GENERAL GUIDELINES
FIGURE 3 - SUGGESTED METHOD FOR SUSPENDING HORIZONTAL FURNACE
RETURN AIR PLENUM
ALLOW ENOUGH ANGLE
IRON OVERHANG TO PERMIT
OPENING THE BLOWER DOOR.
• 3/8" THREADED ROD
• 2" (51mm) ANGLE IRON
• JAM NUTS
• LOCK WASHER
• FLAT WASHER
SUPPLY AIR PLENUM
4.2 OTHER CONSIDERATIONS
H8.1.2
1. Select a location where the exhaust and combustion air piping can be routed between the furnace and
their terminations with a minimum of lengths and fittings. Be sure to check that the proposed termination
location will meet code requirements with respect to location and minimum clearances. (See venting
section for minimum and maximum limits.)
2. Select a location as near as possible to the existing or proposed duct system.
3. The furnace location must have provisions for condensate drainage. If a suitable drain is unavailable near
the furnace, a condensate pump must be used. The condensate pump drain tubing must not terminate
outdoors; similar to some air conditioning condensate installations. Be sure to select a condensate pump
that has been approved for furnace condensate applications.
4. The furnace location must permit access for servicing and be within the clearance to combustibles
guidelines as marked on the appliance rating plate.
5. The furnace must be installed on a level surface. It is recommended that the rear of the furnace be
elevated 1/4" (6mm) higher than the front to facilitate proper condensate drainage.
6. If the furnace is being installed so that the return air will enter through the bottom, the perimeter of the
furnace must be properly supported.
7. When installed in the horizontal position, the furnace may be supported from the bottom, or suspended.
(Figure 3)
8. In upflow right venting configuration, furnace must drain on the left side.
1. If the furnace is to be located in an area where the combustion air is laden with chemical compounds such
as bromine, chlorine or fluorine, as may be found in swimming pool chemicals, laundry detergents, etc.,
use outdoor air for combustion. These compounds when exposed to flame, form acids which attack the
heat exchanger and other components.
Exposure to the following substances in the combustion air supply (but not limited to the following) will also
require OUTDOOR AIR for combustion:
• Aerosols, particularly CFC based or propelled aerosols
• Air fresheners

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4.3 INSTALLATION IN UPFLOW, DOWNFLOW OR HORIZONTAL POSITIONS
H8.2
• “Airplane Glue” and similar adhesives and cements
• Ammonia, as commonly found in permanent wave solutions used in hair dressing salons
• Anti-static fabric softeners used in clothes dryers
• Carbon tetrachloride
• Chlorinated cleaners and waxes
• Chlorine and bromine based swimming pool chemicals
• De-icing salts or chemicals (rock salt, etc.)
• Dry cleaning fluids such as perchloroethylene
• Fumes from curing polyurethane and similar substances
• Halogen based refrigerants including R-12 and R-22
• Hydrochloric acid, muriatic acid and other acid based masonry washing and curing materials
• Printer’s inks, paint removers, varnishes, varsol, toluene, etc.
• Water softener salt and chemicals
2. If this furnace is to be installed in an area over a finished ceiling or living area, install a field fabricated
auxiliary drain pan under the furnace to protect that area from accidental condensate spills. The auxiliary
pan should be large enough to collect accidentally spilled condensate from the air conditioning evaporator
coil assembly if applicable.
3. If the furnace is installed in an area where freezing may occur, a garage, an attic, a crawl space or any
unconditioned space, steps must be taken to protect the condensate trap and drain line from freezing.
H8.3.2
UPFL
O
W IN
S
TALLATI
O
N: Vent positioning, pressure switch location and drain locations shall be per
f
ormed in
accordance with instructions in the appropriate sections of this manual.
HORIZONTAL INSTALLATION: Vent positioning, pressure switch location and drain locations shall be performed in
accordance with instructions in the appropriate sections of this manual.
NON-SUSPENDED INSTALLATION: Maintain clearances to combustibles as outlined in Figure 1, Table B. The
furnace must be supported in such a way as to not allow twisting or sagging of the cabinet.
SUSPENDED INSTALLATION: Maintain clearances to combustibles as outlined in Figure 1, Table B. The
furnace may be suspended by field fabricating a cradle of angle iron and threaded rod. Secure the furnace with
2” minimum slotted angle or equivalent as shown in Figure 3. The furnace must be supported in such a way as to
not allow twisting or sagging of the cabinet. Position the supports so as to not interfere with accessing the burner
and blower compartments.
DOWNFLOW INSTALLATION: Vent positioning, pressure switch location and drain locations shall be performed
in accordance with instructions in the appropriate sections of this manual.
The opening in the floor must provide adequate clearances to the combustible material according to the
clearance to combustible as outlined in Figure 1, Table B.
IMPORTANT:
• THE FURNACE MUST BE INSTALLED ON A LEVEL SURFACE. IT IS RECOMMENDED
THAT THE REAR OF THE FURNACE BE ELEVATED 1/4” HIGHER THAN THE FRONT
TO FACILITATE PROPER CONDENSATE DRAINAGE.
• IF THE FURNACE AND AIR CONDITIONER IS LOCATED ABOVE A FINISHED SPACE,
INSTALL A DRAIN PAN UNDERNEATH THE UNIT.
NOTE
This furnace is approved for installation in attics, alcoves, utility rooms, closets and crawl spaces. If this
furnace is to be installed in a utility room, be sure that it is located in such a way as to allow access for
servicing or the removal of other appliances installed in the room (hot water heater, for example). It is not
permissible to use a rear return on this appliance. Use only side and bottom returns.