Product Overview

ICM292
GAS IGNITION CONTROL BOARD
LIS223-1
Replaces
Rheem: 62-24140-04
Features
• Direct Spark Ignition (DSI) control
board
• Microprocessor-based
• Controls inducer motors, air cleaner
(if equipped), humidifier (if equipped),
spark ignitor and the gas valve
• 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
Specifications
• Control voltage: 24 VAC (18-30 VAC), 60 Hz
• Line voltage: 115 VAC, 60 Hz
• Power consumption: 0.3A plus gas valve current at 24 VAC
• Operating temperature: -40°C (-40°F) to 75°C (176°F)
Timing
• Pre-purge: 30 seconds
• Trial for ignition: 7 seconds
• Retries: Two groups of two, 30 seconds delay within the
group and 3 minutes delay between groups
• Lockout: 1 hour
• Post-purge: 90, 120, 160 and 180 seconds
Inputs
• Power: 24 VAC and COM
• Thermostat interface: R, W, Y and G
• System switches: Vent Pressure and Limit switches
(Main and Over-temperature switches in series)
• Flame Sensing
• Heat blower OFF delay miniature slide switch set
Outputs
• Spark
• Gas Valve: GV
• Inducer draft motor: IDM
• Blower motor: FAN, COOL and HEAT speeds
• Electric Air Cleaner: EAC
• Humidier relay: HUM
• Heat/Cool relay: H/C
LED indicators
• Power, green LED: PWR
• Status, green LED: OK
• Flame status, yellow LED: FLAME
Low cost, form, fit and functional
replacement ignition control