White-Rodgers 3L09-18 Limit Switch The York S1-025-27773-700 Flame Sensor

The York S1-025-27773-700 Flame Sensor is a critical OEM component designed for precise flame rectification in high-efficiency York gas furnaces and HVAC units

Are these gaskets compatible with both bronze and cast iron headers

System Efficiency: Maintains evaporator pressure to prevent coil icing and compressor liquid slugging

Built with a durable brass construction and designed to withstand a maximum working pressure of 450 psig

ensure that the set screws on the crank arm or ball joint are seated firmly against the rod

White-Rodgers 3L09-18 Limit Switch The York S1-025-27773-700 Flame SensorThe White Rodgers 3L09 18 is a high performance 1 2" bimetal disc limit switch engineered for board mounted applications requiring precise thermal regulation. This fixed temperature control is designed with an open on rise switch action, functioning as a critical safety limit in residential and commercial furnace systems. With a 7. 12" insertion length, the sensing element extends deep into the air stream to ensure rapid response times and accurate