ICM (Obsolete/Legacy Products)
ICM2909
ICM (Obsolete/Legacy Products)
ICM2909
Direct Spark Ignition (DSI) Rheem OEM Replacement Control Board
The ICM2909 DSI control replaces the following Rheem models: 62-23599(-01,-02,-03,-04,-05). The ICM2909 has incorporated LED diagnostics to assist in troubleshooting. Fault code information can be found in the application guide.- Direct Spark Ignition (DSI) control board
- Microprocessor-based
- Monitors timing, trial for ignition, system switches, flame sensing and lockout
- 100% lockout safety feature
- Compatible with LP or Natural Gas
- LED indication for status and fault codes to aid in troubleshooting
Input
- Line voltage: 208-230 VAC, 50/60 Hz
- Control voltage: 18-30 VAC, 50/60 Hz
- System switches: Vent pressure, limit and MRLC (Manual Reset Limit Control)
Output
- Heat N.C.: 16FLA/30 LRA @ 277 VAC, 30K @ 85°C
- Cool N.O.: 15FLA/36 LRA @ 277 VAC, 100K @ 85°C
- Inducer: 9.8FLA/58.8LRA, 1/2HP @ 120 VAC, 6K @ 75°C
- Gas valve: 2.3 A PILOT DUTY @ 240 VAC, 6K @ 75°C
Heat Operation Timing
- Pre-purge: 3 seconds
- Heat blower ON delay: 30 seconds
- Post-purge: 5 seconds
- Heat blower OFF delay: 90 seconds
- Ignition trial: 7 seconds
- Inter-purge (retrial): 15 seconds
- Ignition activation period: 5 seconds
- Flame establishing period: 2 seconds
- Flame failure response time: 0.8 seconds (maximum)
Cooling Operation
- Cool blower On delay: 1 second
- Cool blower Off delay: 30 seconds
Lockout Timing
- Auto reset lockout: 60 minutes
Environmental
- Operating temperature: -40˚F to 175˚F (-40˚C to 80˚C)
- Storage temperature: -40˚F to 185˚F (-40˚C to 85˚C)
- Humidity: 5% – 95% R.H. (non-condensing) at +55˚C
Weight/Dimensions
- Height: 2.25″
- Width: 6.60″
- Length: 5.75″
Rheem: 62-23599-01, 62-23599-02, 62-23599-03, 62-23599-04, 62-23599-05




































































































