Product Description
ICM Controls Fan Blower Control Board Part Number ICM291.
This board is a replacement for the following numbers:
Carrier: LH33WP003, LH33WP003A
Features:
- Low cost form, fit and functional replacement for Carrier: LH33WP003A
- Direct Spark Ignition (DSI) control board
- Microprocessor-based
- Controls combustion, blower and indoor fan motors; spark ignitor; and the gas valve
- Monitors timing, trial for ignition, flame sensing and lockout
- 100% lockout safety feature
- Compatible with LP or Natural Gas
- Status LED for fault
Specifications:
- Control Voltage: 24 VAC (18-30 VAC), 60Hz
- Line Voltage: 208/230 VAC, 60Hz
Timing:
- - Pre-Purge: 45 seconds
- - Trial for Ignition: 5+2 seconds
- - Retry Period: Every 20 seconds for 15 minutes
- - Lockout: Manual reset
- - Post-Purge: 45 seconds
LED Indicators:
- - Red LED: Steady ON-normal operation;
Flashing-fault codes Inputs:
- - Power: RT and C
- - Thermostat Interface: R,W, and G
- - Safety Switches: RS, LS, and CS
- - Combustion Motor Hall Effect Sensor
Flame Sensing Outputs:
- - Spark - Gas Valve: GV
- - Combustion Motor: CM
- - Blower Motor: BM
- - Indoor Fan Motor: IFO
Complete with installation guide. Please see all pictures.
