replacing an aged or drifting thermistor with this OEM spec component prevents compressor cycling issues and maintains system efficiency

verify that the orifice is clear of oil and debris to maintain flow coefficients

What happens if the 1

A failed heater allows refrigerant to mix with the oil

Will this work with non-Lochinvar equipment

McDonnell & Miller 343400 Float and Gasket Els PW 17895 replacing an aged or driftingWhen you are performing an annual teardown on a McDonnell & Miller Series 63 low water cut off, the 343400 Float and Gasket assembly (Model SA63 30) is a standard replacement for maintaining system integrity. This OEM kit includes the precision engineered float, the CO 12 head gasket, and the necessary rod component to ensure accurate liquid level sensing in high demand steam and hot water boiler applications. Designed for a maximum boiler pressure of