McDonnell & Miller 67-LQHU Low Water Cut Off 30067439-890 this Robertshaw cold control ensures

this Robertshaw cold control ensures the evaporator is cleared of frost before initiating the next cooling cycle

The interface utilizes 96 captive trippers allowing for precise 15-minute interval scheduling throughout the day

Integrated Safety: Features an automatic reset thermal overload to protect windings from excessive heat or power fluctuations

Durable Bimetal Construction: Built to withstand high-cycle environments in residential and light commercial furnaces

The unit utilizes captive trippers for easy interval setting

McDonnell & Miller 67-LQHU Low Water Cut Off 30067439-890 this Robertshaw cold control ensuresThe McDonnell & Miller 67 LQHU (Part Number 149500) is a field proven mechanical low water cut off engineered specifically for residential and commercial steam boiler applications. Operating as a float type safety control, this unit is designed to interrupt the electrical circuit to the burner if water levels drop below the safe operating line, preventing catastrophic dry fire conditions. The 67 LQHU model is identical to the 149500 and features a 3