Watchdog Low Water Cutoff

When water is in contact with the probe the circuit is.

Watchdog low water cutoff.

Integrated wrench flats enable secure installation without damage to the housing. Hydrolevel safgard 550 electronic low water cutoff with manual reset 120v water hydrolevel low water cut offs are electrically operated. Mcdonnell miller is a leader in engineering and manufacturing boiler controls liquid level controls low water cutoffs and flow switches for steam and hot water boilers in industrial commercial and building trade applications. Mcdonnell miller 144692 rb 24e guarddog electronic 24v low water cut off water features benefits.

Specifically designed to shut off the burner if there is a unsafe water loss for residential applications compact size easy to install and wire automatic reset feature resumes operation after a power outage when water is on probe. Manufactured by mcdonnell miller. This probe style low water cutoff features patented dualvision technology external led s and simplified wiring for easy installation and testing and automatic manual reset mode and are available in 24vac or 120vac models. Brass threads provide a metal to metal seal that ensures a leak free installation.

Mcdonnell miller s patented self cleaning probe minimizes scale build up and extends the recommended cleaning interval to 5 years. Water is used as a conductor to complete the circuit between the probe and the boiler shell. A probe is installed in the boiler shell or external manifold and is connected to the control unit. Rb 24e mcdonnell miller mcdonnell miller low water cut off patented self cleaning probe mcdonnell miller mcdonnell miller mcdonnell miller low water cut off patented self cleaning probe.