Mcdonnell Low Water Cut-Off Manual
The reset button will need. 1 single pole, double throw switch for low water. 1 single pole, single throw switch for pump control. 7b switch (135ohm proportional control signal) to maintain constant boiler water.
McDonnell & Miller 67M Low Water CutOff w. Manual Reset
mcdonnell low water cut off manual McDonnell & Miller PS851M120 Electric 120V Low Water CutOff w 149700 Mcdonnell & Miller 149700 67M, 67 Float Type Low Water Cut
For Commercial And Industrial Low Or High Pressure Steam.
Web for commercial and industrial low or high pressure steam boilers. Web when water drops off the probe for a continuous ten seconds, an electronic “stop” signal goes to the burner, shutting it down and protecting the boiler from a low water condition. 3 low normal with boiler water level at lower mark on gauge glass, the pointer should be in this.
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Web if the control is in a low water condition when there is an interruption of power, the control will remain in a low water condition when power is restored. Web shop low water cutoffs for residential, commercial, and industrial boiler applications. The control unit has a red led light to alert personnel to a low water condition and a green led to indicate normal.
Web Ensure Valve Is Completely Closed When Water Level Is At The Upper Mark.
Web snap action switches for high temperature service. Burner on.feed valve or alarmo n. This control features adenine technical reset over dual 120v switches for lwco additionally.
A Second Switch Is Located Between Terminals Marked “3” And “4”.
Mcdonnell & miller lwco instruction manual features: This can be used to operate a low water alarm or a mcdonnell & miller electric water feeder.
