773-113

This Trane and American Standard furnace pressure switch is a critical safety component designed for high-efficiency HVAC heating systems. Calibrated to 1.59 inches of water column (WC), this air proving switch monitors the negative pressure created by the inducer motor to ensure proper venting and combustion airflow. If a furnace is failing to ignite or displaying a pressure switch lockout error, this replacement part provides the reliable performance needed to restore consistent heating. Engineered for durability and precision, this differential pressure switch helps prevent hazardous conditions by verifying that the exhaust blower is operating correctly before the ignition cycle begins. Ideal for residential gas furnaces, this high-quality air pressure switch ensures your heating system operates safely and meets manufacturer performance standards.
Type: Air Pressure Switch
Size: Compact
Application: Used in residential gas furnaces and HVAC units to monitor combustion blower performance and exhaust venting safety.
Specifications: 1.59" WC (Water Column) set point; Air proving functionality; Differential pressure sensing.