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Always verify the part number on your existing switch before installation
Direct 115V Operation: Plugs directly into existing wiring harnesses with standard 115-volt industrial-grade connections
While modules are available
ensuring consistent negative pressure for safer operation than positive-pressure systems
Heil Quaker ICP 1177927 Defrost Board 320788-703 Always verify the part numberThe Heil Quaker ICP 1177927 Defrost Board is a critical OEM replacement part designed for International Comfort Products (ICP) heat pump systems, including brands like Tempstar, Comfortmaker, and Heil. This defrost control board utilizes microprocessor technology to manage 30, 60, and 90 minute defrost cycles, ensuring the outdoor coil remains clear of ice buildup during low temperature operations. It effectively orchestrates the reversing valve