ICM Controls ICM304 ICP Heat Pump Control Board Defrost Timer

Ultra low cost heat pump defrost timer with high power relay outputs for 1/2 HP fan or strip heat. The ICM304 integrates multiple time and temperature defrost functions onto a low cost, conformally coated, open board package. Features Direct replacement for ICP 1069364 Ultra low cost High power relay outputs for 1/2 hp fan or strip heat Outdoor fan and reversing valve relay integrated into design Anti-banger feature energizes the reversing valve 10 seconds after the outdoor fan relay allowing for pressure equalization On-board test pins reduce test time by 256X Sensor input for defrost terminate Time and temperature terminate 10 minute fixed defrost time Pin selectable intervals: 30/60/90 minutes Y input tracks compressor run times Integral short cycle protection Cool active reversing valve The ICM304 provides a selectable time interval between defrost cycles. It will allow heat for the selected 30/60/90 minute period and provide a 10 minute defrost.