Hydrolevel 650 Low Water Cut-Off Els PW 17895 Using the integrated access ports

Using the integrated access ports

indicating a low refrigerant charge or flash gas in the liquid line

though range limiting typically depends on the specific control board it is interfaced with

When the pilot flame is lost

Hydrolevel 650 Low Water Cut-Off Els PW 17895 Using the integrated access portsThe Hydrolevel 650 Low Water Cut Off is a professional grade solution for protecting residential and light commercial hot water boilers from hazardous dry fire conditions. Operating on 120Vac, this unit offers immediate power interruption to the burner circuit when water levels drop below the EL1214 sensing probe. Designed for high reliability hydronic systems, the Safgard 650 series utilizes a stationary probe that uses water as a conductor,