This sensor utilizes a high-accuracy NTC thermistor curve to relay resistance data

As a direct replacement for S1-029-20423-043

The TF5 electrical rating signifies that this unit requires a 200/230V

High-Grade Construction: Manufactured from heavy-duty brass to resist corrosion and thermal warping during furnace operation

The York S1-029-25456-000 Burner Orifice is a precision-engineered component designed for high-efficiency gas furnace manifolds

York S1-026-34027-000 Roll Out Switch This sensor utilizes a high-accuracyThe 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