York S1-025-22273-001 Limit Switch 321894-708 The low differential pressure design—maintaining

The low differential pressure design—maintaining only a 3 PSI gap between opening and closing—minimizes hammering and system stress caused by flash steam

The Daikin Applied 4EPC9177 features standard foot-mount framing for direct mechanical compatibility

providing the thermal resistance required for continuous high-firing rate applications in hydronic heating systems

the AFS-228-165 provides reliable operation for filter monitoring

specifically within packaged rooftop units and large-scale condensing systems

York S1-025-22273-001 Limit Switch 321894-708 The low differential pressure design—maintainingThe York S1 025 22273 001 Limit Switch is a critical OEM safety component designed for precise thermal management within HVAC furnace systems. This SPST (Single Pole Single Throw) fixed temperature control operates on an auto reset logic, ensuring the burner circuit opens when temperatures reach the 150F trip point and automatically closes once the system cools to 110F. Engineered for York, Coleman, and Luxaire gas furnaces, this high limit switch