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PRODUCT DESIGN
TwinComfort™ Configuration & Operation
OFF ON
Blower Switch to
Hi Heat Operation
Blower Switch to
Hi Heat Operation
T-Stat Satisfied
T-Stat Satisfied
Delay Time (5 Min)
Delay Time 1-12 Min)
Gas Valve Switch
to 2nd Stage
Gas Valve Switch
to 2nd Stage
Start Furnace
in Low Stage
Start Furnace
in Low Stage
Low-Heat Blower
Low-Heat Blower
Call for Heat
Call for Heat
Safety Circuit Check
Safety Circuit Check
MODE DIP SWITCH
TwinComfort™
Note: This furnace is designed to be used
with a single-stage room thermosat.
Start
Start
This furnace is capable of the following heating modes:
• Single Stage (Factory Setting)
• Modified Two-Stage
> Fixed 5-Min. Low Stage
> Auto Time (1-12 Min.) Low Stage
To change from the factory single-stage operation,
adjust the dipswitches on the ignition control as follows:
MODE
5 MIN. FIXED
AUTO
2ND STAGE DELAY
DIPSWITCH
