Description
The York S1-024-39479-000 is an authentic OEM-grade air pressure switch designed to ensure safe and correct operation of furnaces and HVAC combustion systems. Reliable and built to original equipment standards, this switch monitors air flow and vacuum pressure — activating or shutting down the unit if the required negative pressure isn’t reached. That helps prevent unsafe combustion and ensures your HVAC system vents properly and operates efficiently.
Key Features
- Genuine OEM Part: Manufactured by York — guaranteeing compatibility with original York and affiliated HVAC systems, compliance with factory specifications, and consistent performance.
- Precise Pressure Setting: Rated around –0.33" W.C. (water column) — calibrated to trigger at the proper vacuum level for safe combustion and venting.
- Safety-Critical Component: Helps confirm that the inducer motor and flue venting are functioning properly — preventing hazards related to improper venting or flame instability.
- Easy Replacement / Maintenance Part: Designed as a drop-in replacement for original pressure switch configurations — ideal when refurbishing older furnaces or replacing a failed safety switch.
- Durable & Reliable: Built for the harsh operating environment typical in furnace units — engineered for long-term reliability and consistent pressure detection.
