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To The Installer; Important Note To The Owner Regarding Product Warranty; Product Application - Whirlpool WGFD28 Installation Instructions Manual

80% 2-stage variable speed gas furnace gold models
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To the Installer

Before installing this unit, please read this manual thoroughly to
familiarize yourself with specific items which must be adhered to,
including, but not limited to:
Unit maximum external static pressure
Gas pressures
Btu input rating
Proper electrical connections
Circulating air temperature rise
Minimum or maximum CFM
Motor speed connections
NOTE: These furnaces are designed for Category I venting only.
Important Note to the Owner Regarding
Product Warranty
To receive the Lifetime Heat Exchanger Limited Warranty and the
10-Year Parts Limited Warranty, online registration must be
completed within 60 days of installation. Online registration is not
required in California or Quebec.
Full warranty details and instructions are available at
www.goodmanmfg.com or www.amana-hac.com.
Your warranty certificate is supplied as a separate document with
the unit installed by your contractor. Read the limited warranty
certificate carefully to determine what is and is not covered. Keep
the warranty certificate in a safe place. If you are unable to locate
the warranty certificate, please contact your installing contractor,
or contact customer service at 877-254-4729 to obtain a copy.
To register your unit, go to www.goodmanmfg.com. Click on the
Warranty link located on the left side of the home page. Next,
click on the Product Registration link located on the left side of
the Warranty page, and complete the forms in the manner
indicated on the Product Registration page.
To register your Amana brand unit, go to www.amana-hac.com.
Click on the Warranty link located on the top right side of the
home page. Next, click on the Product Registration link located
on the left side of the Warranty page, and complete the forms in
the manner indicated on the Product Registration page.
Product limited warranty certificates can be viewed at
www.goodmanmfg.com or www.amana-hac.com. Each product
overview page contains a Product Warranty link. By clicking on
the link, you will be able to view the limited warranty coverage for
that specific product. To view warranty registration information,
click on the Product Warranty link on the left navigation panel on
the home page of each website. The Online Product Registration
pages are located in this same section.
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.

Product Application

This furnace is primarily designed for residential home-heating
applications.
IMPORTANT:
This furnace is not designed or certified for use in mobile
homes, trailers or recreational vehicles.
This furnace is not designed or certified for outdoor
applications.
The furnace must be installed indoors (for example, attic
space, crawl space or garage area provided the garage area
is enclosed with an operating door).
This furnace can be used in the following nonindustrial
commercial applications:
Schools
Office buildings
Churches
Retail stores
NOTE: 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 all
of 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.
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
in the "Combustion and Ventilation Air Requirements"
section.
The furnace heat exchanger, components, duct system, air
filters and evaporator coils are thoroughly cleaned following
the 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.
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.
Nursing homes
Hotels/motels
Common areas
Office areas
5

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