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If the water temperature hits 170°F
helping older systems reach their maximum rated SEER performance
Integrating this genuine Lennox part restores the system's safety sequence and protects high-value components from excessive thermal stress
tight-fitting integration with existing pressure switch hoses
Lennox 80K28 Pressure Switch Els PW 17895 If the water temperature hitsThe Lennox 80K28 is a critical safety component designed for precise furnace pressure monitoring in high efficiency gas fired systems. This OEM Lennox replacement part, also identified as 80K2801, features a factory calibrated set point of . 43" WC (Water Column) to ensure the inducer motor is generating sufficient draft before allowing ignition. Built for durability in demanding HVAC ventilation systems, the switch utilizes a Single Pole Single Throw