2. Position blower off delay switches on controls in BOTH furnaces to the SAME desired blower off delay in heating. See furnace Installation,
Start-Up, and Operating Instruction for further details.
3. Attach twinning connection wiring label above the existing furnace wiring label on the inside of the L/H furnace blower access door. Use
the following labels for the following applications:
Single Stage furnaces with single stage thermostat, 327893–101
Single Stage furnaces with two-stage thermostat, 327892–101
Two Stage furnaces with single stage or 2–stage thermostat, 327891–101
Fig. 33—Concentric Vent and Combustion-Air Roof Termination (Dimension “A” is Touching or 2-in. Maximum Separation)
A93056
COMBUSTION
AIR
VENT
VENT
A
Fig. 34—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. 35—Sidewall Termination of 12 in. or Less (Dimension “A” is Touching or 2-in. Maximum Separation)
A96129
A
COMBUSTION AIR
COMBUSTION AIR
VENT
—35—
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