120-699

This high-performance HVAC air pressure switch is a vital safety component designed for residential furnace and heating systems. Acting as an air proving switch, it monitors the differential pressure created by the draft inducer motor to ensure proper venting and combustion airflow before allowing the ignition sequence to begin. If your furnace is experiencing startup failures or air circulation errors, this replacement pressure control ensures your system operates within safe parameters. Featuring precise calibrated set points, it is engineered for reliability and long-term durability in high-efficiency heating environments.
Type: Air Pressure Switch
Size: Compact
Application: Gas-fired furnaces, high-efficiency residential HVAC systems, and draft inducer monitoring applications.
Specifications: Opening Point: 0.50 inches WC; Closing Point: 0.71 inches WC; Type: Air Proving Switch