McDonnell & Miller 150S-MD Controller Els PW 29614 precision-engineered to maintain optimal CFM

precision-engineered to maintain optimal CFM output and heat exchanger efficiency

outdoor installations require proper insulation and protection to prevent the condensate from freezing within the body

while the screw terminals ensure secure electrical connections for 22 to 14 AWG wiring

eliminating high-frequency interference and mitigating voltage spikes that can trace back to sensitive semiconductor components

McDonnell & Miller 150S-MD Controller Els PW 29614 precision-engineered to maintain optimal CFMThe 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