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Whirlpool WFM18 Installation Instructions Manual page 5

80% single-stage multispeed gas furnace

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This furnace can be used in the following non-industrial
commercial applications:
Schools
Office buildings
Churches
Retail stores
Nursing homes
Hotels/motels
Common or office areas
WARNING
To prevent property damage, personal injury or death due
to fire, do not install the furnace in a mobile home, trailer
or recreational vehicle.
In such applications , the furnace must be installed with the
following stipulations:
It must be installed according to the installation instructions
provided and according to local and national codes.
It must be installed indoors in a building constructed on site.
It must be part of a ducted system and not used in a free air
delivery application.
It must not be used as a "makeup" air unit.
All other warranty exclusions and restrictions apply.
This furnace may be used as a construction site heater only if the
following conditions are met:
The vent system is permanently installed according to these
installation instructions.
A room thermostat is used to control the furnace. Fixed
jumpers that provide continuous heating cannot be used.
Return air ducts are provided and sealed to the furnace.
A return air temperature range between 60ºF (16ºC) and 80ºF
(27ºC) is maintained.
Air filters are installed in the system and maintained during
construction, replaced as appropriate during construction
and, upon completion of construction, are replaced.
The input rate and temperature rise are set according to the
furnace rating plate.
100% outside air is provided for combustion air requirements
during construction. Temporary ducting can be used.
NOTE: Do not connect the temporary duct directly to the
furnace. The duct must be sized according to the instructions
under Section V, Combustion and Ventilation Air
Requirements, Section 5.3.3.
The furnace heat exchanger, components, duct system, air
filters and evaporator coils are thoroughly cleaned following
final construction cleanup.
All furnace operating conditions (including ignition, input rate,
temperature rise and venting) are verified according to these
installation instructions.
NOTE: The Commonwealth of Massachusetts requires that the
following additional requirements must also be met:
Gas furnaces must be installed by a licensed plumber or gas
fitter.
A T-handle gas cock must be used.
If the unit is to be installed in an attic, the passageway to and
the service area around the unit must have flooring.
To ensure proper installation and operation, thoroughly read this
manual for specifics pertaining to the installation and application
of this product.
To ensure proper furnace operation, install, operate and maintain
the furnace in accordance with these installation and operation
instructions, all local building codes and ordinances. In their
absence, follow the latest edition of the National Fuel Gas Code
(NFPA 54/ANSI Z223.1), and/or CAN/CSA B149 Installation
Codes, local plumbing or waste water codes, and other
applicable codes.
A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1)
can be obtained from any of the following:
American National Standards Institute
1430 Broadway
New York, NY 10018
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02269
CSA International
8501 East Pleasant Valley
Cleveland, OH 44131
A copy of the CAN/CSA B149 Installation Codes can also be
obtained from:
CSA International
178 Rexdale Boulevard
Etobicoke, Ontario, Canada M9W 1R3
The rated heating capacity of the furnace should be greater than
or equal to the total heat loss of the area to be heated. The total
heat loss should be calculated by an approved method or in
accordance with "ASHRAE Guide" or "Manual J-Load
Calculations" published by the Air Conditioning Contractors of
America.
In the U.S.A., this furnace must be installed in accordance with
the latest edition of the ANSI Z223.1 booklet entitled "National
Fuel Gas Code" (NFPA 54), and the requirements or codes of the
local utility or other authority having jurisdiction. In Canada, this
furnace must be installed in accordance with the current CAN/
CGA-B149.1 & 2 Gas Installation Codes, local plumbing or waste
water codes and other applicable codes. Additional helpful
publications available from the NFPA are, NFPA 90A—Installation
of Air Conditioning and Ventilating System and NFPA 90B—Warm
Air Heating and Air Conditioning System.
All venting shall be in accordance with PART 7, Venting of
Equipment, of the National Fuel Gas Code, ANSI Z223.1, or
applicable local building and/or air conditioning codes. These
publications are available from:
National Fire Protection Association, Inc.
1 Batterymarch Park,
Quincy, MA 02269
NOTE: Furnaces with NOx screens meet the California NOx
emission standards and California seasonal efficiency standards.
Annual inspections of the furnace and its vent system is strongly
recommended.
Your unit model type determines which installation procedures
must be used. For WFM18 models, you must follow instructions
for horizontal left, horizontal right or upflow installations only.
WFM18 furnaces are not approved for downflow installations.
WARNING
Possible property damage, personal injury or death due
Goodman 48
to fire, explosion, smoke, soot, condensation, electrical
shock or carbon monoxide may result from improper
installation, repair, operation or maintenance of this
product.
5

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