60" WC SPST (Single Pole Single Throw) switch is a normally open safety component that confirms the inducer motor is pulling the correct vacuum before allowing the ignition sequence to proceed

Its lightweight 0

ensuring correct phasing and reducing field wiring errors

and verify that all safety parameters are within operational limits

York S1-025-39873-000 Harness 318820-201 60" WC SPST (Single PoleThe York S1 025 39873 000 Motor Harness is a critical OEM electrical interface designed for high performance connectivity within York residential and commercial HVAC units. Engineered to provide a robust link between the air handler control board and the blower motor, this harness ensures stable power transmission and precise communication signals. This specific HVAC motor wiring harness is optimized for models such as the AHP18, AHP24, and AHP30