Lennox 69W57 Pressure Switch 340793-762 reducing nuisance flame sensor lockouts

reducing nuisance flame sensor lockouts and maintaining seasonal efficiency

The 3/4" Union FNPT x FNPT connection allows for simplified installation in either vertical or horizontal orientations while maintaining a low pressure drop of approximately 5 psi at 15 GPM

The unit features a standard Rajah connector

a reading outside of the manufacturer's specified range usually indicates the element is nearing the end of its functional life

Lennox 69W57 Pressure Switch 340793-762 reducing nuisance flame sensor lockoutsThe Lennox 69W57 Pressure Switch is a critical OEM replacement part engineered for high efficiency, 2 stage HVAC systems. As a dual stage sensing component, it accurately monitors the differential pressure within the inducer housing to ensure the combustion process is safe before allowing ignition. This Lennox 102737 05 pressure switch features precise factory set parameters, with a high set point of 0. 68" W. C. and a low set point of 0. 30" W. C.,