McDonnell & Miller 150S-MD Controller Freon keeping your systems compliant and

keeping your systems compliant and operational

To avoid motor overheating

ensuring precise conductance-actuated monitoring

the AC solenoid coil can be serviced or replaced without disconnecting the valve body from the NPT piping

McDonnell & Miller 150S-MD Controller Freon keeping your systems compliant andThe McDonnell & Miller 150S MD (Part Number 171802) is a heavy duty combination low water cut off and pump controller designed specifically for commercial and industrial steam boiler applications. This model features a snap acting SPDT switch with Maximum Differential operation, which is critical for preventing rapid pump cycling in high demand systems. It is engineered to maintain precise water levels up to a maximum pressure of 150 psi (10. 5 kg