5
enhanced setup features, and enhanced diagnostics. It also re-
duces the number of thermostat wires to a maximum of four. It
may be also installed as part of a non-communicating system
using a standard 24 VAC thermostat.
This product may be installed with the ComfortNet thermostat
and a non-ComfortNet compatible single stage air conditioning
unit. However, this reduces the benefits of the ComfortNet sys-
tem as the enhancements will only apply to the furnace.
P
RODUCT
A
PPLICATION
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 in-
stalled 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 com-
mercial 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 fol-
lowing stipulations:
•
It must be installed per the installation instructions
provided 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 as a two-pipe systems for
combustion air.
•
All other warranty exclusions and restrictions apply This
furnace is an ETL dual-certified appliance and is
appropriate 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 burners
through a special air intake system outlined in these
instructions.
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
installation 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
construction, and upon completion of construction.
•
The input rate and temperature rise are set per 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 for adequate
combustion and ventilation in accordance with the latest
edition 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, 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 furnace operation, install, operate and main-
tain 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 Instal-
lation 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
25 West 43rd Street, 4th Floor
New York, NY 10036
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 012169-7471
CSA International
8501 East Pleasant Valley
Independence, OH 44131
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 ac-
cordance with “ASHRAE Guide” or “Manual J-Load Calculations”
published by the Air Conditioning Contractors of America.
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