ICM304 Heat Pump 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.

A high power output (1/2 HP fan @ 240 VAC) is available. Also included on the ICM304 are strip heat and reversing valve outputs (24 VAC, 1 amp).