McDonnell & Miller 61 Low Water Cut Off R-410A including R22 and R410A

including R22 and R410A

Utilizing a reliable Therm-O-Disc construction

This kit is a direct replacement for McDonnell & Miller 347100 and includes the necessary O-ring (Tetraseal) to ensure a gas-tight

and light oil with a high flow capacity of 3

Most failures result from moisture exposure in the blower compartment or electrical surges originating from the transformer

McDonnell & Miller 61 Low Water Cut Off R-410A including R22 and R410AThe McDonnell & Miller 61 Low Water Cut Off (Part Number 140100) is a heavy duty mechanical control designed for residential steam boiler applications. Engineered for systems with a 20 PSI maximum steam pressure, this float operated safety device prevents catastrophic boiler failure by interrupting the electrical circuit if the water level drops below the safe operating line. The unit features 1" NPT connections for a secure fit into the water column