Lennox 57W79 Pressure Switch reducing the need for universal

reducing the need for universal truck stock

Durable Construction: Manufactured from high-grade metal to withstand the thermal stress of continuous pilot operation in liquid propane systems

Will this work as a door interlock switch

Technicians should inspect the existing gasket for cracks or compression sets and replace if necessary to ensure a hermetic seal

Lennox 57W79 Pressure Switch reducing the need for universalThe Lennox 57W79 Pressure Switch is a critical OEM safety component engineered for precise inducer draft monitoring in Lennox gas furnaces. Calibrated to a 0. 70" WC activation setpoint, this green pressure switch ensures the combustion blower is establishing sufficient static pressure before allowing the ignition sequence to proceed. As a direct furnace pressure switch replacement, it resolves common fault codes related to airflow verification and