Rheem-Ruud 47-17719-01 Defrost Control Refrigerant Technicians should inspect existing flue

Technicians should inspect existing flue gaskets and seals

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

the Danfoss KVL 22 provides responsive pressure control and reliable protection for critical HVACR infrastructure

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

it is best practice to ohm out your current thermistor to ensure the entire defrost circuit is functioning within spec

Rheem-Ruud 47-17719-01 Defrost Control Refrigerant Technicians should inspect existing flueIf 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