Description
Direct Spark Ignition (DSI) control board
ICM2909
Direct Spark Ignition (DSI) control board
DETAILS:
- 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
WEIGHT/DIMENSIONS:
Height: 2.25
Width: 6.60
Length: 5.75
SPECIFICATIONS:
■ Inputs
- 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)
■ Outputs
- Relay contact ratings:
- Heat/cool:
- – N.C.: 10A @ 240 VAC
- – N.O.: 20A @ 240 VAC
- Inducer: 2.2 FLA-3.5, LRA @ 208 VAC
- Gas valve: 1.7 A @ 31 VAC pilot
■ 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 failure response time: 0.8 seconds (max)
■ Cooling Operation Timing
- 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
Replaces:
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