Description
The Xylem-McDonnell & Miller 157S-RL-M LWCO & Pump Controller monitors boiler water level and controls pump operation through an integrated float-actuated switching mechanism. As the water level changes, the internal assembly opens or closes electrical contacts to manage pump activity and interrupt burner operation when low-water conditions are detected. In boiler applications, HVAC systems rely on this controller to coordinate water level management and operating sequences. It is mounted on the boiler at the specified connection point and wired to the pump, burner, and control circuit for continuous operation.
