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Installation Requirements; Tools And Parts; Location Requirements - Whirlpool WFAU Installation Instructions Manual

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These instructions are intended as a general guide only for use by
qualified persons and do not supersede any national or local
codes in any way. Compliance with all local, state, or national
codes pertaining to this type of equipment should be determined
prior to installation.
Read this entire instruction manual, as well as the instructions
supplied in separate equipment, before starting the installation.
The installation of the furnace, wiring, warm air ducts, venting,
etc. must conform to the requirements of the National Fire
Protection Association; the National Fuel Gas Code, ANSI
Z223.1/NFPA No. 54 (latest edition) and the National Electrical
Code, ANSI/NFPA No. 70 (latest edition) in the United States, and
any state laws, local ordinances (including plumbing or
wastewater codes), or local gas utility requirements. Local
authorities having jurisdiction should be consulted before
installation is made. Such applicable regulations or requirements
take precedence over the general instructions in this manual.
This furnace is design certified by CSA International as a
Category I furnace using air from inside the structure for
combustion. The combustion system is fan-assisted, which
means it is equipped with an integral mechanical means to draw
products of combustion through the heat exchanger.

Tools and Parts

Assemble the required tools before starting installation. Read and
follow the instructions provided with any tools listed here.
Tools Needed:
Pipe wrench
Non-corrosive leak check solution
Test gauge with ¹⁄₈ in. NPT
Tape measure
(for measuring gas supply pressure)
Thread sealant
Parts Needed:
Check local codes and with gas supplier. Check existing gas
supply, electrical supply, and venting, and read "Duct Work
Requirements," "Electrical Requirements," "Gas Supply
Requirements" and "Venting Requirements" before purchasing

Location Requirements

Explosion Hazard
Keep flammable materials and vapors, such as
gasoline, away from furnace.
Place furnace so that burners are at least 18 inches
(46 cm) above the floor for a garage installation.
Failure to follow these instructions can result in death,
explosion, or fire.
Explosion Hazard
Do not install this furnace in a mobile home.
Doing so can result in death, explosion, fire, or
carbon monoxide poisoning.
IMPORTANT: Do not use the furnace as a heater in a building
under construction. The furnace can be severely damaged due to
the abnormal environment caused by construction. Chlorides
from sources such as paint, stain, or varnish; tile and counter
cements; adhesives; and foam insulation are abundant in a
structure under construction and can be highly corrosive. Low
return air temperature can cause condensation in the furnace and
other damage that can shorten the life of the furnace.
The furnace is suitable for installation in buildings
constructed on site. The furnace should be centralized in
respect to the heat distribution system as much as
All models are suitable for closet or utility room installation.
Utility room installation requires:
A door opening large enough for the widest part of the
A door opening large enough to remove/replace any other
appliance located in the utility room, such as a water heater.
Any other appliances arranged so that each appliance can be
removed/replaced without disturbing the furnace.


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