Description
The Lennox 42W34 Expansion Valve which is an essential part of the Lennox HVAC systems. This valve is made of brass and is rather small, only 3/8 Inches long by 1/2 Inch wide, but it is responsible for controlling the temperature in your building. This is facilitated by what scientists refer to as a metering device through which refrigerant circulation in the system is accurately regulated. Refrigerant is a high-pressure liquid that circulates inside the building and extracts heat then expels it outside.
