773-196

This York Air Pressure Switch is an essential safety component for residential and commercial gas furnaces and HVAC systems. As an air proving switch, it is designed to monitor the negative pressure generated by the inducer motor, ensuring that flue gases are being properly vented before the ignition process begins. Rated at -0.50" WC (Water Column), this switch acts as a critical fail-safe, preventing the furnace from operating under unsafe venting conditions. Whether you are performing routine maintenance or troubleshooting a heating system that won't ignite, this high-quality replacement part offers the precision and reliability needed to restore your HVAC unit to peak performance and ensure safe operation.
Type: Air Pressure Switch
Size: Compact
Application: Commonly used in gas-fired furnaces, air handlers, and HVAC systems to verify inducer blower operation and flue venting.
Specifications: Pressure Rating: -0.50" WC (Water Column); Type: Air Proving/Safety Cutoff; Function: Monitors vacuum/negative pressure in combustion chambers.