Weil McLain 511-624-402 Pressure Switch Els PW 17895 Common Questions What units are

Common Questions What units are compatible with the Lennox X0444

As a versatile direct spark ignition component

providing superior resistance to oxidation and physical handle-shock

professional HVAC repair

Common Questions What causes a T&P valve to drip or weep

Weil McLain 511-624-402 Pressure Switch Els PW 17895 Common Questions What units areThe Weil McLain 511 624 402 Pressure Switch is an essential safety component specifically engineered for induced draft combustion systems. Calibrated to a 1. 48" WC setpoint, this SPST (Single Pole Single Throw) switch monitors the differential pressure across the inducer motor to ensure the venting system is clear of obstructions before ignition. This HVAC pressure switch features a dual 1 4" barb connection for easy integration with standard