White-Rodgers 47D40-801 Heat Pump Defrost Demand Control Board, Replacement for Rheem WRSX built-in magnetic mount and a

built-in magnetic mount and a large easy-to-read display

13mm JOINT THICKNESS: 0

4 - 113 kg)

Klein Tools VDV770-850 Test + Map™ Remotes (#2 - #6) Upgrade Kit for Scout® Pro 3 Tester

(1) M18™ & M12™ Rapid Charger(48-59-1808)

White-Rodgers 47D40-801 Heat Pump Defrost Demand Control Board, Replacement for Rheem WRSX built-in magnetic mount and aWhite 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