PRODUCT DESIGN
15
Acceptable Equipment Combinations
With CTK0* Communicating Thermostat:
1. Modulating furnace alone
2. Modulating furnace with Goodman® brand / Amana®
brand communicating split A/C or H/P unit (no sepa-
rate dual fuel control is required)
3. Modulating furnace with non-communicating 1 stage
A/C split unit (can not support a 2 stage A/C or a
non-communicating heat pump).
With Conventional Non-Communicating Thermostat
(Single or Multi-Stage)
1. Modulating furnace alone.
2. Modulating furnace with Goodman® brand/ Amana®
brand communicating split A/C or H/P unit (a dual
fuel thermostat or separate dual fuel control is re-
quired for H/P).
3. Modulating furnace with non-communicating split A/
C or H/P (a dual fuel thermostat or separate dual
fuel control is required for H/P).
Product Application
This furnace is primarily designed for residential home-
heating applications. It is NOT designed or certified for
use in mobile homes, trailers or recreational vehicles.
Neither is it designed or certified for outdoor applications.
The furnace MUST be installed indoors (i.e., 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 non-industrial
commercial applications:
Schools, Office buildings, Churches, Retail stores,
Nursing homes, Hotels/motels,
Common or office areas
In such applications, the furnace must be installed with
the following stipulations:
• It must be installed per the installation instructions pro-
vided and per 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 “make-up” air unit.
• It must be installed with two-pipe systems for combus-
tion air.
• All other warranty exclusions and restrictions apply This
furnace is an ETL dual-certified appliance and is appro-
priate for use with natural or propane gas (NOTE: If
using propane, a propane conversion kit is required).
Dual certification means that the combustion air inlet pipe is
optional and the furnace can be vented as a:
Non-direct vent (single pipe) central forced air furnace
in which combustion air is taken from the installation
area or from air ducted from the outside or,
Direct vent (dual pipe) central forced air furnace in which
all combustion air supplied directly to the furnace burn-
ers through a field installed combustion air pipe.
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 per these in-
stallation instructions.
• A room thermostat is used to control the furnace. Fixed
jumpers that provide continuous heating CANNOT be
used and can cause long term equipment damage.
• 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 con-
struction, and upon completion of construction.
• The input rate and temperature rise are set per the fur-
nace rating plate.
• 100% outside air is provided for combustion air require-
ments during construction. Temporary ducting can be
used.
NOTE: Do not connect the temporary duct directly to the
furnace. The duct must be sized for adequate combus-
tion and ventilation in accordance with the latest edi-
tion of the National Fuel Gas Code NFPA 54/ANSI Z223.1
or CAN/CSA B149.1 Installation Codes.
• The furnace heat exchanger, components, duct system,
air filters and evaporator coils are thoroughly cleaned
following final construction clean up.
• All furnace operating conditions (including ignition, in-
put 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 floor-
ing.
To ensure proper furnace operation, install, operate and
maintain the furnace in accordance with the installation
manual shipped with the furnace as well as all local build-
ing 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
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