Lennox 34M77 Pressure Switch Els PW 17895 Each kit includes two porcelain

Each kit includes two porcelain wire nuts to simplify the splicing process for field service technicians

While the adjustment screw provides 0

Key Benefits Enhanced Wiring Access: The unique 3-piece design allows for easier mounting and provides more room to work compared to standard compact boxes

Whether you are replacing a worn balljoint connector or performing a new linkage adjustment on a Barber Colman MC-series actuator

Precision Thermal Safety: Fixed 150°F open and 120°F close (L150-30) ratings provide furnace high-limit protection

Lennox 34M77 Pressure Switch Els PW 17895 Each kit includes two porcelainEnsure reliable sequence of operation with the Lennox 34M77 Pressure Switch, a critical safety component designed for heating and cooling systems. This OEM Lennox furnace pressure switch is engineered to monitor draft pressure and confirm proper inducer motor performance before allowing the ignition process to begin. Featuring a precise 1. 00"wc SPST (Single Pole Single Throw) configuration, this switch actuates at 1. 00" W. C. and resets at 1. 15" W.