McDonnell & Miller 7-BM Switch THPU32HP7Y at which point it breaks

at which point it breaks the circuit to shut down heating

Rugged Construction: Designed to withstand vibration and environmental stressors common in commercial boiler plants

commonly found on 2-1/2 to 6-inch valve bodies

eliminating common hunting issues in DDC systems

each stage can be configured independently for heating or cooling modes

McDonnell & Miller 7-BM Switch THPU32HP7Y at which point it breaksThe McDonnell & Miller 7 BM Switch (Part Number 110900) is a heavy duty, potentiometer proportional low water cut off switch specifically built for Series 93, 193, 94, and 194 pump controllers. Designed for boiler systems requiring modulated feedwater control, this manual reset switch utilizes a 0 135 ohm slide wire resistor to provide a continuous signal to a proportional domestic or industrial modulating water valve. The single pole double break