York S1-025-27747-017 Rollout Switch R-407C common in commercial lighting and

common in commercial lighting and HVAC circuits

This veteran-preferred Apollo 13 Series safety valve features a 3/4" Male NPT inlet and a 3/4" Female NPT outlet

this TXV valve is specifically calibrated for the pressure-temperature characteristics of R-410A refrigerant

Smith 100274781 valve installation

Broad Compatibility: Supports a range of Lochinvar and A

York S1-025-27747-017 Rollout Switch R-407C common in commercial lighting andThe York S1 025 27747 017 Rollout Switch is a critical OEM replacement part designed for high limit temperature monitoring in York, Coleman, and Luxaire gas furnaces. This rollout switch is precision calibrated to trip at 350F, effectively breaking the 24V safety circuit to the gas valve if flame rollout or heat exchanger compromise occurs. As a manual reset rollout switch, it requires a physical inspection of the combustion area by a technician