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BCFurnace
773-345
773-345
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$158.39 CAD
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Ensure your heating system operates safely and efficiently with this premium Lennox Pressure Switch. As a critical air proving safety component, this Single Pole Single Throw (SPST) switch is designed to monitor the negative pressure generated by the inducer draft motor. With a precise factory setpoint of -0.36" WC, it verifies that the combustion blower is moving sufficient air through the heat exchanger before allowing the furnace ignition sequence to proceed. This pressure sensor acts as a vital fail-safe, preventing the burner from firing if it detects a blocked vent, a failing blower motor, or restricted airflow. Built for durability and high-performance reliability, it is an essential replacement part for maintaining the safety standards of residential gas furnaces and HVAC units.
Type: Air Pressure Switch
Size: Compact
Application: Residential gas furnaces, forced-air heating systems, and HVAC induced draft assemblies for air proving and combustion safety monitoring.
Specifications: Pressure Setting: -0.36" WC; Contact Configuration: SPST (Single Pole Single Throw); Function: Normally Open, closes on pressure rise; Application: Air Proving.
Type: Air Pressure Switch
Size: Compact
Application: Residential gas furnaces, forced-air heating systems, and HVAC induced draft assemblies for air proving and combustion safety monitoring.
Specifications: Pressure Setting: -0.36" WC; Contact Configuration: SPST (Single Pole Single Throw); Function: Normally Open, closes on pressure rise; Application: Air Proving.
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