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each stage can be configured independently for heating or cooling modes
commonly found on 2-1/2 to 6-inch valve bodies
at which point it breaks the circuit to shut down heating
this motor is designed for durability in grueling outdoor environments
McDonnell & Miller 7-BM Switch THPU32HP7Y each stage can be configuredThe 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