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while the screw terminals ensure secure electrical connections for 22 to 14 AWG wiring
outdoor installations require proper insulation and protection to prevent the condensate from freezing within the body
and retail spaces where HVAC system security is a priority
restoring factory-spec static pressure performance and quiet operation
McDonnell & Miller 150S-MD Controller Els PW 29614 while the screw terminals ensureThe 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
