Mcdonnell Miller 7B Manual

Slowly lower boiler water level. Order online now from boilerwarehouse.com. Continue with verification procedure to determine operation. 1 single pole, double break switch.

Mcdonnell Miller No 7B Wiring Diagram Wiring Diagram Schemas

This switch features a single pole. Order online now from boilerwarehouse.com. Web if pointer is on white insulator, the 7b switch may have been adjusted in the field.

Web Mcdonnell & Miller Model Number 7B Is An Automatic Reset Proportioning Switch Assembly For Model Number 93, 193, 94, And 194 Controls.

7b switch (135ohm proportional control signal) to maintain constant boiler water level; Combination low water cut off and pump controller with potentiometer switch for steam boilers with 250 psi max pressure (part number. Web replacement head mechanism with switch assembly: