1.Installation
Installation or repairs made by unqualified
persons can result in hazards to you and others.
Installation MUST conform with local codes or, in
the absence of local codes, with codes of the
country having jurisdiction.
The information contained in this manual is
intended for use by a qualified service technician
familiar with safety procedures and equipped
with the proper tools and test instruments.
Failure to carefully read and follow all instruc-
tions in this manual can result in furnace
malfunction, property damage, personal injury
and/or death.
NOTE: This furnace is design certified by the American Gas
Association and the Canadian Gas Association for installation in
the United States and Canada. Refer to the appropriate codes,
along with this manual, for proper installation.
• This furnace is NOT approved for installation in mobile
homes, trailers or recreation vehicles.
• Do NOT use this furnace as a construction heater.
• Use only the Type of gas approved for this furnace (see
Rating Plate on unit). Overfiring will result in failure of heat
exchanger and cause dangerous operation.
• Do NOT use open flame to test for gas leak.
• Ensure adequate combustion and ventilation air is pro-
vided to the furnace.
• Seal supply and return air ducts.
• The vent system MUST be checked to determine that it is
the correct type and size.
• Install correct filter type and size.
• Unit MUST be installed so electrical components are pro-
tected from direct contact with water.
• It is the suggestion of this manufacturer to install fire and
carbon monoxide detectors.
Poison carbon monoxide gas hazard.
If this furnace is replacing a previously
common-vented furnace, it may be necessary to
resize the existing vent line and chimney to
prevent oversizing problems for the other
remaining appliances(s). See applicable codes
and Venting and Combustion Air Check in Gas
Vent Installation section.
Failure to properly vent this furnace or other
appliances can result in property damage,
personal injury and/or death.
Locationand Clearances
1. Refer to Figure 1 for typical installation and basic connect-
ing parts required. Supply and return air plenums and duct
are also required.
May be vented with
another gas appliance.
Figure 1 1 Typical Installation
__ Roof Line
To ElectricaI Service
Entrance Panel
VentPipe _ _Return __-GasLine
_ _///////////:
ischarge
25-20-58
2.
Iffurnace isa replacement, it is usually best to install the fur-
nace where the old one was. Choose the location or evalu-
ate the existing location based upon the minimum
clearance and furnace dimensions (Figure 2).
CAUTION
Do NOT operate furnace in a contaminated atmosphere con-
taining chlorine, fluorine or any other damaging chemicals.
Refer to Combustion & Ventilation Air section, Contami-
nated Combustion Air.
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