Watchdog Low Water Cutoff

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.

Watchdog low water cutoff.

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. Hydrolevel safgard 550 electronic low water cutoff with manual reset 120v water hydrolevel low water cut offs are electrically operated. Features and benefits the rb 24e low water cut off offers several features.

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. Mcdonnell miller s patented self cleaning probe minimizes scale build up and extends the recommended cleaning interval to 5 years. When water is in contact with the probe the circuit is. 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.

The taco low water cutoff provides accurate and dependable protection for all types of boilers from small residential hot water boilers to large industrial steam units. A probe is installed in the boiler shell or external manifold and is connected to the control unit. Made in united states. Water is used as a conductor to complete the circuit between the probe and the boiler shell.