McDonnell & Miller 63-B Low Water Cut Off 318973-401 Engineered for heavy-duty HVACR applications

Engineered for heavy-duty HVACR applications

Common Questions How do I verify if the B1225022S coil is faulty

it operates as a normally open contact that closes on temperature rise

The MCP-0455 features a rugged construction that handles high-force requirements for larger dampers

What is the purpose of the 16

McDonnell & Miller 63-B Low Water Cut Off 318973-401 Engineered for heavy-duty HVACR applicationsThe McDonnell & Miller 63 B (Part Number 142700) is a heavy duty, float operated mechanical low water cut off engineered for reliable performance in residential and commercial hot water and steam boilers. As a veteran grade boiler safety control, this unit features an automatic reset and a 1" NPT threaded connection, rated for a maximum pressure of 50 PSI. The integrated float block design ensures stable operation by reducing float movement caused by