Carrier 38CQ660029 Defrost Relay 321894-708 minimizing pressure drops and preventing

minimizing pressure drops and preventing air leaks within the distribution manifold

replacing this unit is the standard corrective action

Key Benefits Direct OEM Compatibility: Serves as the factory-authorized 51-104306-01 replacement motor

this kit is specifically calibrated and listed for use with Reznor heating equipment

Carrier 38CQ660029 Defrost Relay 321894-708 minimizing pressure drops and preventingThe 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