York S1-025-31835-000 Limit Switch Versatile Application: Fits a broad

Versatile Application: Fits a broad range of Lennox and Allied Air platforms

the BDHE-136 is the official direct replacement valve pin for the ADFA-20 and ADFA-20-1

While often documented in manufacturer bulk packs

System Stability: Facilitates coordinated action between motors and valves by ensuring consistent signal flow from thermostats and sensors

allowing the damper

York S1-025-31835-000 Limit Switch Versatile Application: Fits a broadThe York S1 025 31835 000 Limit Switch is an essential safety component specifically engineered for York furnace and air handling systems. This automatic reset limit switch is calibrated with a 140F opening threshold and a 110F closing threshold, functioning as a primary thermal safeguard for the heat exchanger. When temperatures exceed the safe operating range, the switch interrupts the burner circuit to prevent equipment damage and potential safety