Mcdonnell & Miller 51-2 Water Feeder / Low Water Cutoff 135000

Mcdonnell & Miller (176234) 120volt Manual Reset Hot Water Boiler Low Water Cutoff. The Series 751 probe type LWCOs provide protection against low water conditions for commercial and industrial applications. These controls are fully CSD-1 compliant and are primarily used as LWCOs on hot water heating boilers. Green LED indicates power OnRed LED indicates Low WaterTest buttonMeets requirements of ASME Standards CSD-1No lock out with loos of power if probe is in water 20,000 ohms probe...

Mcdonnell & Miller 24volt Hot Water Boiler Low Water Cutoff.

The Series PSE-800 probe type LWCO uses patented technology to monitor changes in water conductivity. When defined parameters are exceeded the new PSE-800 makes a decision to shut the burner off based on the volatility/variability of the resistance readings. This new patented technology provides the best protection possible without turning off the boiler unless a low water condition exists. As an added measure of safety, the control will turn off the boiler if it recognizes an out-of-water...

Mcdonnell & Miller (153828) PSE-801-U-120 Steam Boiler Low Water Cutoff 120volt with Extended Probe. The Series PSE-800 probe type LWCO uses patented technology to monitor changes in water conductivity. When defined parameters are exceeded the new PSE-800 makes a decision to shut the burner off based on the volatility/variability of the resistance readings. This new patented technology provides the best protection possible without turning off the boiler unless a low water condition...