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WIRING:
CAUTION: When wiring the spillage switch into the burner control circuit route the wiring and secure away from
any hot surface. Shut off all electrical power and gas supply to the appliance before working with any electrical
connections.
CAUTION: Never wire to the 24V GND terminal.
Wire the spill switch in series with the burner fan-proving air pressure switch(es) as shown in Figure 4.
WARNING: All field wiring must be in accordance with appliance manufacturer’s recommendations and
all applicable local and national electrical codes.
SYSTEM CHECK-OUT PROCEDURE FOR GAS SPILLAGE SWITCH CONTROL
1. Disconnect electrical power to the appliance.
2. Shut off gas supply to appliance(s).
3. Block the flue pipe above the draft control, draft hood or draft diverter.
4. Re-establish gas supply to appliance and re-light pilot (if required).
5. Adjust thermostat to call for heat.
6. Flue gases should be spilling from draft control hood. Allow approximately 2 minutes for the system to back up and the
GSK to trip, shutting the burner off.
7. Disconnect electrical power, shut off the gas supply, and remove the blockage from the vent pipe after allowing the vent
to cool.
8. The GSK switch should reset a few minutes after tripping, and allow normal operation of the appliance. If the burner
control has locked out, reset for normal operation.
CAUTION: If for any reason the system has shut down during normal operation, the cause of the system failure should be
investigated and corrected before resetting the safety switch and relighting the pilot.
Figure 4