Hydrolevel 400R Low Water Cut-Off R-410A Frequent tripping usually indicates airflow

Frequent tripping usually indicates airflow restrictions

Altering the factory dimensions can compromise the spark gap and signal strength

Wide Fuel Compatibility: Suitable for multi-gas environments

not a primary load-bearing member

you will need the equivalent 2-wire lead version rather than the threaded nut style

Hydrolevel 400R Low Water Cut-Off R-410A Frequent tripping usually indicates airflowThe Hydrolevel 400R (Part Number 45 402) is a professional grade 24VAC low water cut off designed specifically for steam boiler applications where a remote mounting configuration is required. As a primary safety control, the 400R utilizes a non cycling design, ensuring the burner circuit remains interrupted until a safe water level is restored. This model includes the EL1214 R sensing probe and a dedicated junction box, providing the flexibility