2-stage thermostat to select gas heating modes. The W2 from
thermostat must be connected to W2 on control terminal block.
(See Fig. 28 and 52A-G.)
Before operating furnace, check each flame rollout manual reset
switch for continuity. If necessary, press and release button to reset
switch. The blower compartment door must be in place to
complete the 115-v circuit to the furnace.
Fig. 43—Rooftop Termination (Dimension “A” is Touching or 2–in. Maximum Separation)
A96128
A
Fig. 44—Concentric Vent and Combustion-Air Roof
Termination (Dimension “A” is Touching or 2-in.
Maximum Separation)
A93056
COMBUSTION
AIR
VENT
VENT
A
Fig. 45—Concentric Vent and Combustion-Air Side
Termination (Dimension “A” is Touching or 2-in.
Maximum Separation)
A93057
COMBUSTION AIR
VENT
A
VENT
1
″
MAXIMUM
(TYP)
Fig. 46—Raised Sidewall Termination when Wall
Penetration is 12 in. or Less
Above Snow or Grade
(Dimension “A” is Touching or 2-in. Maximum
Separation)
A96129
A
COMBUSTION AIR
COMBUSTION AIR
VENT
Fig. 47—Sidewall Termination of More than 12 in.
(Dimension “A” is Touching or 2-in Maximum
Separation)
A96130
COMBUSTION AIR
COMBUSTION AIR
VENT
A
36