Furnace must be installed and serviced by a
Examples of a qualified person include:
licensed heating personnel,
authorized gas company personnel.
Read and follow all instructions provided for
installation, adjustment, service, alteration, or
Failure to follow these instructions can result in death,
explosion, fire, or carbon monoxide poisoning.
Excessive Weight Hazard
Use two or more people to move and install furnace.
Failure to do so can result in back or other injury.
This furnace is shipped in one package, completely assembled
and wired. The thermostat is shipped in a separate carton when
Check the unit rating plate to confirm specifications are as
Upon receipt of equipment, carefully inspect it for possible
shipping damage. Take special care to examine the unit
inside the carton if the carton is damaged.
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 unit as your claim may be denied.
Plan Vent System
Confined Space Installation—Direct Venting
If the furnace is installed in a confined space and all the air
necessary for combustion is supplied to the furnace through
an air intake pipe vented directly outside, the pipe size and
materials used must conform to the specification listed in
"Materials—Air Intake Pipe Only" later in this section.
A. Chimney or gas vent
Typical Installation—Vertical Vent with Outdoor Fresh Air
Inlet Pipe Specifications
75 & 100
75, 100, 125 & 150
*The inlet air lengths listed are maximum "equivalent pipe
NOTE: One 90º elbow or two 45º elbows are the equivalent of 5 ft
Max. 65 ft
C. Air intake pipe
Max. 65 ft*
Inlet Pipe Size