Laars Heating Systems R0021901 Low Water Cut Out R-410A and COL11010

and COL11010

Does this board replace multiple Williams part numbers

System Protection: Minimizes "locked rotor" conditions

90" is unavailable

Laars Heating Systems R0021901 Low Water Cut Out R-410A and COL11010The Laars Heating Systems R0021901 Low Water Cut Out is a critical safety component designed for professional hydronic boiler maintenance and equipment protection. This LWCO safety device serves as the primary defense against dry fire conditions by monitoring real time fluid levels within the heat exchanger. When water levels drop below the required threshold, the low water cut out kit immediately interrupts the burner circuit, preventing catastrophic