York Parts S1-02427634001 Gas Furnace Air Pressure SwitchGas Furnace Air Pressure Switch plays a critical safety role by monitoring furnace draft and confirming inducer operation before ignition. The York Parts S1 02427634001 Gas Furnace Air Pressure Switch is a direct replacement that delivers reliable pressure sensing for compatible York systems and other furnaces. It is designed as a dependable HVAC replacement part for technicians and DIY homeowners. Set at 0. 65 Iwc, this switch ensures proper

5 PSI spring for reliable sequencing

delivering steady low-voltage power for control circuits and ignition systems

Performance: Consistent response for zone valve operation and damper position control

The PVC construction resists cracking in cold weather and stays flexible in heat

Quiet performance: Designed for quiet operation during furnace cycles

As part of HVAC replacement parts

Built with a forged brass body

092 in male pin

22V DC coil enables dependable activation

Use this blower scroll as a trusted replacement part to extend system life and protect overall comfort

Porting: 90 Degree Right

humidity 5–95%