Rheem-Ruud 47-17719-01 Defrost Control Refrigerant a factory-approved overpressure protection device

a factory-approved overpressure protection device (OPD) is mandatory to meet ANSI Z21

If the drive motor is running hot or stalling under load

Automatic Reset: Features a 100-160°F range with an automatic reset function (L160-30F)

providing the necessary thermal feedback to prevent unburned gas accumulation during startup sequences

Technicians should inspect existing flue gaskets and seals

Rheem-Ruud 47-17719-01 Defrost Control Refrigerant a factory-approved overpressure protection deviceIf you are battling iced up coils or mid winter compressor short cycling, the Rheem Ruud 47 17719 01 Defrost Control is the specific 230V mechanical time temperature replacement required for heritage Rheem and Ruud heat pump units. This board eliminates guesswork by integrating multiple selectable defrost intervals, allowing you to field tune the system to 30, 45, or 90 minute cycles based on local humidity and load conditions. Designed for absolute