Spring Return Fail-Safe: Automatically transitions to the default position during electrical interruptions

00" WC trip point to meet factory safety tolerances

or the outdoor unit failing to engage despite receiving 24V from the board

ensuring a leak-proof seal at the valve stem interface

York S1-029-24485-000 Knob 326058-755 Spring Return Fail-Safe: Automatically transitionsThe York S1 029 24485 000 is a specialized OEM replacement part engineered for high cycle reliability in residential and light commercial furnace and air handler enclosures. This Quarter Turn Knob functions as a primary access panel fastener, ensuring a secure mechanical lock that prevents cabinet rattling and air bypass during high static blower operation. Constructed from high grade, heat resistant composite material, the S1 029 24485 000 is built