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saving time on field retrofits
Common issues include a restricted pilot orifice or a weak thermocouple signal
60" WC (Water Column) set point
Does this unit lock out if power is lost
McDonnell & Miller 193D Controller R-22 saving time on field retrofitsThe McDonnell & Miller 193D is a heavy duty combination low water cut off and pump controller designed for commercial and industrial steam boilers. Engineered for high demand environments, this float operated control manages pump activation while providing critical low water protection to prevent boiler dry firing. The 193D model features alternate tappings, specifically 1" NPT connections for equalizing pipes and integrated ports for gauge glass and