York S1-025-22273-001 Limit Switch 318423-701 reliable air volume regulation

reliable air volume regulation

Solid-State Reliability: Built with high-grade soldered relays and trace paths to resist moisture and carbon build-up common in older furnace cabinets

Advanced Protection: Integrated internal break thermal protection prevents motor burnout during high-load or phase-loss scenarios

the coupling provides superior thermal conductivity and corrosion resistance

York S1-025-22273-001 Limit Switch 318423-701 reliable air volume regulationThe 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