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eliminating the need for additional external air flow restriction components
eliminating common hunting issues in DDC systems
commonly found on 2-1/2 to 6-inch valve bodies
each stage can be configured independently for heating or cooling modes
immediately de-energizing the gas valve for maximum protection
McDonnell & Miller 7-BM Switch THPU32HP7Y eliminating the need for additionalThe 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