you can toggle between normally open and normally closed states based on your zoning system requirements

the unit provides the necessary durability to handle frequent cycling and high-temperature flue gas environments

Can I use this for both 50Hz and 60Hz systems

this elastomeric seal ensures a leak-proof interface under varying pressure differentials and thermal cycles

all-in-one approach to mechanical ventilation and HVAC fresh air intake

York S1-025-22273-001 Limit Switch 323613-751 you can toggle between normallyThe 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