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To ensure accurate sensing
OEM Durability: Constructed to York technical specifications for better resistance to thermal fatigue compared to generic after-market switches
For use with 5" and 8" MP953A
Common Technician Questions: Where is the best location to install the HFO-0015 for accurate TESP
York S1-026-34027-000 Roll Out Switch To ensure accurate sensingThe York S1 026 34027 000 Roll Out Switch is a critical furnace safety limit designed to detect abnormal combustion conditions. As a specialized bimetal flame rollout limit switch, it monitors the burner area for escaping flames or "rollout" caused by heat exchanger failure, restricted venting, or flue blockages. Rated for 300 degrees Fahrenheit, this manual reset switch terminates the electrical circuit to the gas valve when thermal thresholds are