GOLD CGi
9a Operation — sequence
1.Read Operating instructions on page 40. This information is also located on a label on the inside of the boiler jacket door panel.
2.Raise room thermostat to call for heat.
3.Circulator energizes. If limit circuit is closed, the inducer starts. After pressure switch proves proper airflow, control module initiates
4.Control module sparks the pilot and opens pilot valve in main gas valve.
a.If pilot does not light within 15 seconds, pilot valve is closed and spark generator is turned off. Control module initiates a
b.If pilot does light and control module senses flame current, spark generator is turned off and main valve opens.
erator activates and sequence returns to step 4.
b.If power is interrupted, control system shuts off pilot and main gas valves and restarts at step 1 when power is restored.
6.In the event the limit control shuts down the boiler — The control module closes the pilot and main gas valves, but keeps the inducer operating for
— The circulator continues to operate.
7.Lower room thermostat setting to stop call for heat. Thermostat is satisfied — Pilot and main gas valves are closed — Inducer operates for
8.Boiler is now in the off cycle.
9.Repeat steps 1 through 6 several times to verify operation.
5.During main burner operation:
a.Control module monitors pilot flame current. If signal is lost, main valve closes, spark gen-
10.Return the thermostat to normal setting.
11.Set thermostat heat anticipator setting as instructed in Figure 32, page 39.
Figure 30 Control module sequence of operation — status light indications
Part Number | 37 |
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