ICM Controls ICM6700 12 VDC Direct Spark Ignition Control Board

ICM Controls ICM6700 12 VDC Direct Spark Ignition Control Board

Description:

• Suburban Replacement. This ignition control circuit board works on all Suburban 12V furnaces and Suburban water heater model 520820.

• When the thermostat calls for heat, the ICM6700 will verify the sail switch is open before energizing the inducer blower. 

• Once the inducer blower is energized, the ICM6700 will verify the sail switch has closed and begin a 15 second pre-purge cycle. 

• Following the inducer blower pre- purge cycle, the gas valve and spark ignitor are energized and the ICM6700 will verify the presence of flame.

• If flame has not been sensed after 7 seconds; the control will attempt 2 more trials for ignition, if flame is not sensed after 3 trials for ignition, the ICM6700 will enter a 1-hour lockout. 

• If flame is detected, the spark ignitor is turned off and the gas valve remains energized. Once the thermostat is satisfied, the gas valve is de-energized immediately and a 90 second post-purge cycle of the inducer blower is enforced. 

• After the 90 second post purge cycle, the inducer blower is turned off. 

• Note: Lockout is cleared by recycling the input voltage.

General Features:

• Direct Spark Ignition (DSI) control board

• Monitors timing, Trial for ignition, flame sensing and lockout

• Designed for 100% gas shutoff in the case of ignition failure

• Microprocessor-based precision

• Designed for 100% gas shutoff in the case of ignition failure

Specifications:

Replaces: