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It is the responsibility of the installer to follow the manufacturers'
recommendations and to verify that all vent/flue piping and
connectors are compatible with furnace flue products.
Additionally, it is the responsibility of the installer to ensure that all
piping and connections possess adequate structural integrity and
support to avoid flue pipe separation, shifting or sagging during
furnace operation.
Dual Certification: Nondirect/Direct Vent
This furnace is dual certified and may be installed as a nondirect
vent (single pipe) or direct vent (dual pipe) appliance. A nondirect
vent installation requires only a vent/flue pipe, while a direct vent
installation requires both a vent/flue pipe and a combustion air
intake pipe.
Unconfined Space
An unconfined space is defined as "a space whose volume is
more than 50 cu. ft (1.4 m
3
) per 1,000 Btu/h of the combined input
rating of all appliances installed in that space."
When a furnace is installed in an unconfined space in a building,
it can be assumed that the infiltration will be sufficient to supply
the required air.
If the furnace is installed in a ventilated attic or crawl space, it is
assumed that the air infiltration is sufficient to supply the required
combustion air. However, in a building of unusually tight
construction, additional outdoor air should be provided.
Confined Space
A confined space is defined as "a space whose volume is less
than 50 cu. ft (1.4 m
3
) per 1,000 Btu/h of the combined input
rating of all appliances installed in that space." Use direct vent
method. See "Plan Vent System."
Contaminated Combustion Air
Excessive exposure to contaminated combustion air will result in
performance related problems. The recommended source of
combustion air is outdoor air.
This furnace is shipped in one package, completely assembled
and wired. The indoor thermostat and accessories are shipped in
a separate carton when ordered.
Check the furnace rating plate to confirm specifications are
as ordered.
Upon receipt of the furnace, inspect it for possible shipping
damage. Examine the furnace inside the carton if the carton
is damaged.
INSTALLATION INSTRUCTIONS
Inspect Shipment
Outdoor Air as the Source of Combustion Air
If the furnace is installed in a confined space, it is recommended
that the necessary combustion air come from the outdoors by
way of an attic, crawl space, air duct, or direct opening.
Outdoor air is required as the source of combustion air when the
indoor air is contaminated with chemical substances and in the
following types of installations:
Furnaces installed in commercial buildings
Furnaces installed in buildings with indoor pools
Furnaces installed in hobby or craft rooms
Furnaces installed near chemical storage areas
Furnaces installed in laundry rooms
Furnaces installed in hair salons
Indoor Air as the Source of Combustion Air
Indoor air as the source of combustion air is acceptable in most
applications if the following guidelines are met:
All provisions for indoor combustion air must meet the
requirements for combustion air indicated in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 (latest edition), and/or any
applicable local codes.
If indoor combustion air is used, the air supply to the furnace
should not be exposed to the following substances:
Permanent wave solutions
Chlorinated waxes and cleaners
Chlorine-based swimming pool chemicals
Water softening chemicals
Deicing salts or chemicals
Carbon tetrachloride
Halogen-type refrigerants
Cleaning solvents (such as perchloroethylene)
Printing inks, paint removers, varnishes, etc.
Cements and glues
Antistatic fabric softeners for clothes dryers
Masonry acid washing materials
Chlorinated laundry products
Hydrochloric acid
If damage is found, it should be noted on the carrier's freight
bill. Damage claims should be filed with the carrier
immediately. Claims of shortages should be filed with the
seller within 5 days.
NOTE: If any damages are discovered and reported to the carrier,
do not install the furnace, because your claim may be denied.
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