773-232

Ensure your heating system operates safely and efficiently with this premium air pressure switch. Designed as a critical safety mechanism for gas furnaces and HVAC units, this air proving switch monitors the negative pressure generated by the draft inducer motor. It confirms that the exhaust system is clear and that there is sufficient airflow for safe combustion before allowing the ignition process to begin. If your furnace is experiencing startup failures or shutting down unexpectedly, this calibrated pressure switch is an essential replacement part to restore reliable performance. Engineered for precision, it responds to a specific pressure threshold of -0.80" WC, helping to prevent the accumulation of hazardous flue gases and ensuring your residential heating equipment maintains optimal functionality throughout the winter.
Type: Air Pressure Switch
Size: Compact
Application: Used in gas-fired furnaces and HVAC draft inducer assemblies to prove airflow and ensure safe combustion sequences.
Specifications: Pressure Setting: -0.80" WC (Water Column)