ICM2910-205-015-MCS Fenwall OEM Replacement DSI Control

The ICM2910-205-015 replaces the Fenwall 35-725205-015 3. When the thermostat initiates a “Call for Heat”, the ICM2910 will perform a hardware check. After the hardware check, the ICM2910 will start a pre-purge where applicable. Once the pre-purge has ended, the spark source and the gas valve relay are energized simultaneously for the duration of the trial for ignition period. A flame rectification circuit confirms the presence of the flame. Upon flame detection, the spark source is turned off. If flame is not sensed, the control will turn off the spark source and gas valve and start an inter-purge where applicable before the next trial for ignition. If flame is not detected after the trial(s) for ignition, the control will enter a hard lockout. To clear the hard lockout, remove the input voltage to the control or recycle the thermostat’s heat call.

• Direct Spark Ignition (DSI) control modules
• Microprocessor-based
• Controls spark ignitor and gas valve
• Monitors timing, trial for ignition, flame sensing and lockout
• Compatible with LP or natural gas
• Redundant Gas valve design conforms to ANSI Z21.20
• Conforms to UL STDs 60730-1 and 60730-2-5.
• Certified to CSA STD E60730-1 and CSA STD C22.2#60730-2-5