and particulate matter from entering high-precision fuel lines and burner controls

Quiet Operation: Designed for low-vibration performance and smooth ramping to minimize startup noise in residential ductwork

Optimized Efficiency: Advanced ECM technology reduces electrical load and lowers utility costs for the end-user

Durable Galvanized Construction: Built to withstand commercial duty cycles

making it suitable for standard high-temperature hydronic loops

Lennox 69W55 Pressure Switch Els PW 29614 and particulate matter from enteringThe Lennox 69W55 is a critical two stage pressure switch engineered for precision airflow monitoring in high efficiency gas furnaces. Specifically designed as a Lennox OEM replacement part, this 102737 03 switch features dual set points to support staged heating operations: a high pressure set point of 0. 55" W. C. and a low pressure set point of 0. 20" W. C.. As a furnace safety switch, it functions by verifying that the inducer motor is creating