For technicians diagnosing a locked out furnace or system short-cycling

It utilizes a 1/2" x 5 1/2" flatted shaft and high-grade sleeve bearings designed for continuous duty in residential or light commercial applications

Direct Replacement: Matches existing mounting footprints for faster furnace repair and installation

Can I adjust the cut-in or cut-out pressure on this model

For maximum reliability and to meet OEM specifications

McDonnell & Miller 7-BM Switch Refrigerant For technicians diagnosing a lockedThe 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