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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25
Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
This switch is typically calibrated for high-pressure cut-out
or 240V) and purchase a compatible AM or ASC2 coil separately
Direct Fit Compatibility: Specifically engineered to replace the 5051-078BX
For technicians performing maintenance or repairs
Carrier 38CQ660029 Defrost Relay 321702-401 This switch is typically calibratedThe Carrier 38CQ660029 Defrost Relay is a specialized HVAC defrost control board designed for heat pump systems requiring precise field selectable timing. This genuine OEM replacement part manages the transition between heating and defrost modes by monitoring the defrost thermostat and cumulative compressor run time. Engineered for 208 240V configurations, the board supports a 10A current capacity and features adjustable intervals of 30, 45, or 90
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