Goodman GCH9 Technical Manual page 11

PRODUCT DESIGN
Dual $aver Configuration & Operation
Dual $aver
This furnace is capable fo 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:
OFF
Mode
5 Min. Fixed
Auto
Note: This furnace is designed to be used
with a single-stage room thermosat.
Start
Call for Heat
Safety Circuit Check
Start Furnace
in Low Stage
Low-Heat Blower
Delay Time (5 Min)
Gas Valve Switch
to 2nd Stage
Blower Switch to
Hi Heat Operation
T-Stat Satisfied
ON
Mode Dipswitch
2nd Stage Delay
Dipswitch
Start
Call for Heat
Safety Circuit Check
Start Furnace
in Low Stage
Low-Heat Blower
Delay Time (1-12 Min)
Gas Valve Switch
to 2nd Stage
Blower Switch to
Hi Heat Operation
T-Stat Satisfied
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