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Legacy Cross-Reference: Consolidates multiple older part numbers into a single reliable service solution for veteran contractors
and Coleman furnace assemblies
always cross-reference your specific serial number before installation
this valve offers the reliability required to maintain proper superheat and system efficiency under varying thermal loads
McQuay Daikin 803005073 Circuit Board 30067439-890 Legacy Cross-Reference: Consolidates multiple olderThe McQuay Daikin 803005073 is a 24VDC Auxiliary Relay Circuit Board engineered for precision control within commercial and industrial HVAC systems. This OEM replacement part is specifically designed to facilitate reversing valve conversion from DC to AC solenoid coils, making it a critical component for technicians performing upgrades or repairs on McQuay Water Source Heat Pump (WSHP) units. By integrating with high performance Mark IV control
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