Lennox 80K27 Pressure Switch Els PW 17895 Engineered for high-performance cycling

Engineered for high-performance cycling

and D-4073 series

or differential pressure by utilizing the appropriate NPT ports for the high and low-pressure sides

When troubleshooting short-cycling or furnace overheating codes

maintaining system efficiency while preventing pilot or main burner failure due to coil degradation

Lennox 80K27 Pressure Switch Els PW 17895 Engineered for high-performance cyclingThe Lennox 80K27 Pressure Switch is a critical safety and operational component designed for high performance Lennox HVAC systems. Engineered for precision, this furnace pressure switch features a 0. 34" wc setpoint, ensuring the draft inducer motor is moving exhaust gases safely before the ignition sequence begins. The SPST (Single Pole Single Throw) configuration provides a reliable normally open circuit that closes under proper pneumatic pressure,