Description
The York S1-025-26392-003 SPST Rollout Switch is a control component used to detect heat conditions in gas-fired heating equipment. It is calibrated to open the electrical circuit at approximately 145F Open and reset when temperatures drop to about 105F Close, helping protect the burner area from flame rollout or overheating. In HVAC systems, it is commonly installed in furnaces and rooftop heating units where combustion safety monitoring is required. As part of the ignition safety circuit, it supports equipment protection, safe shutdown during fault conditions, and reliable heating performance in residential and commercial applications.
