ICM (Obsolete/Legacy Products)
ICM278
ICM (Obsolete/Legacy Products)
ICM278
Carrier OEM Replacement Control
When power is applied, the ICM278 turns on the heat blower for the blower off delay. When a G call is issued, the blower turns on. When it is removed, the blower turns off after a fixed delay. When a W call is issued, the inducer fan turns on. When the W2 signal is received, the heat blower turns on after a delay. When the W2 signal is removed, the blower stays on for the variable heat delay- Controls blower motor and inducer
- Combines functionality of two boards into one
- Microprocessor-based precision
- Adjustable blower off delay
- Compatible with 24 VAC standard thermostat
Input:
- Voltage Terminals:
- N1-N5, S1-S5, H, L, L1, D1: 120/240 VAC
- Y, G, W, C, R, W2, X, HL, PS1, Ps2: 18-30 VAC
- Line Frequency: 60 Hz
Environment:
- Operating Temperature: -40ºF to +176ºF
- Maximum Operating Humidity: 95% R.H.Non-condensing @ 50ºC
Time Delay:
- Heat On: 60 Seconds
- Heat Off: 60-200 seconds
- Cool Off: 40 Seconds
Weight/Dimensions
- Weight: 0.4 lb.
- Height: 2″
- Width: 4.5″
- Length: 5.5″
Carrier: HH84AA017 and HH84AA018 (both boards together)
Recommended Alternative:
Function specific; No suggested alternative