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Installation Instructions; Inspect Shipment; Plan Vent System - Whirlpool WGFBLT Installation Instructions Manual

80% 2-stage variable speed gas furnace
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WARNING
Explosion Hazard
Furnace must be installed and serviced by a
qualified person.
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
maintenance.
Failure to follow these instructions can result in death,
explosion, fire, or carbon monoxide poisoning.

Inspect Shipment

WARNING
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
ordered.
Check the unit rating plate to confirm specifications are as
ordered.
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.

INSTALLATION INSTRUCTIONS

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.
Approved Vent
System
A
B
A. Chimney or gas vent
B. Furnace
Typical Installation—Vertical Vent with Outdoor Fresh Air
Approved Vent
System
PVC Inlet
Pipe
See Chart
Inlet Pipe Specifications
Input—KBtu/h
50
75 & 100
75, 100, 125 & 150
*The inlet air lengths listed are maximum "equivalent pipe
lengths."
NOTE: One 90º elbow or two 45º elbows are the equivalent of 5 ft
of pipe.
Max. 65 ft
6" Min.
Keep inlet
away from
obstructions
12" Min.
and maximum
PVC Inlet
snow level.
Pipe
See Chart
C
C. Air intake pipe
Max. 65 ft*
6" Minimum
Keep inlet
away from
obstructions
and maximum
12" Minimum
snow level.
Inlet Pipe
Inlet Pipe Size
Total Length*
2"
65 ft
2"
30 ft
3"
65 ft
7

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