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S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
Check Safety Shutoff Operation
1. Shut off the gas supply at the manual gas valve ahead
of the appliance.
2. Set the thermostat to call for heat. System should oper-
ate as indicated in Fig. 9 on page 19 or Fig. 12 on
page 22.
3. Following lockout, open the manual gas valve and make
sure no gas is flowing to the burner.
69-2088—01
Operating Sequences
Figures 9 through 14 beginning on page 19 describe the
various operating cycles (Light Off, Heat, Run, Cool, and Fan)
of the S9240F1004 Integrated Furnace Control (IFC).
18
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