ICM3000
ICM3000
Demand Defrost Control
The control will begin the 3-minute time delay upon a Y call from the thermostat. After the time delay expires; the compressor contactor will be energized as long as the high- and low-pressure switches are closed. If either switch is open after the delay expires; the compressor will not energize and the respective fault code is displayed. If the high-pressure cutout (HPC) switch opens while the compressor is energized; the compressor will de-energize immediately and the 3- minute anti-short cycle delay begins.
The low-pressure cutout (LPC) switch is bypassed for the first 90 seconds of compressor run time; if the low-pressure switch remains open after the 90 second delay; the compressor will de-energize and the 3-minute anti-short cycle delay begins. The compressor will not be allowed to re-energize until the anti-short cycle delay expires and both pressure switches are closed. If either pressure switch opens 3 times during the same Y call; the control will enter a hard lockout and flash the respective code.
- Heat active (B) reversing valve logic
- Sensor input for defrost terminate
- Time and temperature terminate
- 14-minute fixed defrost time
- On-board test pins
- Input accumulates actual compressor run time
- Pin-selectable: 50°F, 60°F, 70°F (factory default), 80°F defrost terminate
- Integral short cycle protection
- Certified to UL 60730-1 and CSA E60730-1:15
Input
- Voltage: 18-30 VAC, 50/60Hz
- OAT (outdoor ambient sensor): 10kΩ @ 77°F
- OCT (outdoor coil sensor): 10kΩ @ 77°F
Output
- CC (compressor contactor): 1A, 24 VAC, pilot duty
- RV (reversing valve): 1A, 24 VAC, pilot duty
- D (auxiliary heat): 1A, 24 VAC, pilot duty
- Fan (outdoor fan): 2 FLA, 4 LRA, 120 VAC / 240 VAC
Time Delay
- Defrost: Fixed at 14-minutes
- Delay on make: 3-minutes
- Anti-short cycle delay: 3-minutes
- LPC (low pressure cutout):
- Bypassed during the defrost cycle
- Bypassed for the first 90 sec of compressor run time
- Bypassed for 90 seconds after the defrost cycle
- Operating temperature range: -22°F to 158°F (-30°C to 70°C)
- Storage temperature range: -40°F to 185°F (-40°C to 85°C)
Weight/Dimensions
- Length: 5.50”
- Height: 3.50″
- Width: 1.25″
Rheem: 1157-100, 1157-110, 1157-120, 1157-121, 47-102684-01, 47-102684-02, 47-102684-03, 47-102684-04, 47-102684-08, 47-102685-02, 47-102685-04, 47-102685-05, 47-102685-06, 47-102685-07, 47-21517-22, DDL-122131-2RH
White Rodgers: 47D43-101-90, 47D43-111-01, 47D43-111-02, 47D43-111-03, 47D43-111-04, 47D43-811