Hydrolevel 24 Low Water Cut-Off 30067439-890 By sensing the negative pressure

By sensing the negative pressure generated by the inducer motor

The unit is balanced to minimize vibration and bearing wear on the condenser motor

5-inch bore is a standard size

What is the purpose of a 180-second delay on this relay

Hydrolevel 24 Low Water Cut-Off 30067439-890 By sensing the negative pressureThe Hydrolevel 24 Low Water Cut Off (Model 45 240) is a heavy duty, probe type safety control engineered specifically for hydronic heating professionals. Operating on 24 VAC, this electronic LWCO utilizes an EL1214 sensing probe to monitor water levels within hot water boilers. When a low water condition occurs, the control immediately interrupts the burner circuit to prevent dry firing and heat exchanger damage. The automatic reset functionality