Specifications

Furnace Controls
Furnace Control Modules
ICM Control Features and Applications Specifications Replaces
ICM289
• Controls inducer fan motor, blower fan and monitors
limit switches
• Microprocessor based design
• Functions with all 24 VAC thermostats
• Voltage Range: Line (98-132 VAC) @ 60 Hz
• Cool blower: 20A @ 120 VAC
• Heat blower: 20A @ 120 VAC
• Inducer motor: 5A @ 120 VAC
• Cool blower On Delay: 1 second
• Cool blower Off Delay: 1 second
• Heat blower On Delay: 45 seconds
• Heat blower Off Delay: 90, 150, 210, 270 sec.
• Lennox:
Replaces all BCC1,
BCC2 and BCC3 circuit
boards, including 48K98
and 45K48.
ICM291
• Direct Spark Ignition (DSI) control board
• Microprocessor-based
• Controls combustion, blower and indoor 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 codes to aid in troubleshooting
• Control voltage: 24 VAC (18-30 VAC), 60 Hz
• Line voltage: 208/230 VAC, 60 Hz
• Power cons: 0.3A plus gas valve current @ 24 VAC
• Operating temp: -40°C (-40°F) to 75°C (176°F)
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
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
LED indicators
• Red LED: Steady ON- normal operation
Flashing – fault codes
• Carrier:
LH33WP003/3A
ICM292
• Direct Spark Ignition (DSI) control board
• Microprocessor-based
• Controls Induced Draft and indoor blower motors;
humidifier output, spark ignitor and gas valve
• Monitors timing, trial for ignition, flame sensing and
lockout
• 100% lockout safety feature
• Compatible with LP or Natural Gas
• Status LEDs for fault codes to aid in troubleshooting
• Control voltage: 24 VAC (18-30 VAC), 60 Hz
• Line voltage: 115 VAC, 60 Hz
• Power cons: 0.3A plus gas valve current at 24 VAC
• Operating temp: -40°C (-40°F) to 75°C (176°F)
Timing
• Pre-purge: 30 seconds
• Trial for ignition: 7 seconds
• Retries: 2 groups of 2, 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: SW1 toggle switch
Outputs
• Spark: SE
• Gas Valve: GV
• Inducer draft motor: IDM
• Electric Air Cleaner: EAC
• Humidifier relay: HUM
• Heat/Cool relay: H/C
• Blower motor: FAN, COOL and HEAT speeds
LED indicators
• Power, green LED: PWR
• Status, green LED: OK
• Flame status, yellow LED: FLAME
• Rheem: 62-24140-04
ICM2801
• Controls vent motor, blower control, hot surface ignitor
and gas valve
• Monitors timing, trial for ignition, flame sensing and
lockout
• Microprocessor-based
• Reverse polarity protection
• 100% lockout safety feature
• Compatible with LP or Natural Gas
• Twinning compatible with another ICM2801 control
• Status LED for fault codes to aid in troubleshooting
• Line voltage: 98-132 VAC @ 60 Hz
• Ignitor: 5A, 120 VAC
• Cool blower: 10A, 2 HP, 240 VAC
• Heat: 5A, ½ HP, 250 VAC
• Inducer blower: 4A, 120 VAC
• Gas valve: 1A, 24 VAC
• York/Evcon:
7990-319P
315.233.5266
Phone
All features and specifications subject to change without notice.
Customer Service Fax
315.233.5282
Application Assistance
800.365.5525
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