McDonnell & Miller 199030 Boiler Low Water Cutoff is a safety device that monitors boiler water level and shuts off the boiler when the water drops below a preset point. It provides automatic low-water protection in steam and hot-water boiler systems by interrupting the boiler’s control circuit when low-water conditions are detected. The 199030 model is a boiler protection component from McDonnell & Miller designed for integration into standard boiler safety interlocks.
