McDonnell & Miller 193D Controller R-22 With an amperage rating of

With an amperage rating of 3

Common issues include a restricted pilot orifice or a weak thermocouple signal

saving time on field retrofits

Multi-Speed Versatility: Features 3-speed taps to allow for field-adjustable airflow tuning based on the specific fan coil unit installation

McDonnell & Miller 193D Controller R-22 With an amperage rating ofThe 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