White-Rodgers 47D40-801 Heat Pump Defrost Demand Control Board, Replacement for Rheem Size_1/2 HP Easy operation

Easy operation

Unlike other detectors you’ll find on the market

Multi-Cable Cutter (Cat

inverter-driven

White-Rodgers 47D40-801 Heat Pump Defrost Demand Control Board, Replacement for Rheem Size_1/2 HP Easy operationWhite Rodgers 47D40 801 Heat Pump Defrost Demand Control Board, Replacement for Rheem The 47D40 801 control is a microprocessor based demand defrost controller intended for Rheem heat pump systems. This controller uses basic differential temperature means to detect degradation of system performance due to ice build up on the outdoor coil. The controller uses self calibrating principles to calibrate to the heat pump system. The defrosting is performed