ClimateMaster 33B0002N05 Thermal Expansion Valve (TXV)

The ClimateMaster 33B0002N05 Thermal expansion valve is an essential component of HVAC systems, namely heat pumps and air conditioners. This valve controls the flow of the refrigerants that enter the evaporator section or coil. This however functions by measuring the temperature and pressure of the refrigerant that is leaving the evaporator. If the refrigerant is too warm, meaning the cooling is inadequate, more refrigerant flows into the evaporator because the TXV has opened wider. This precise control enables the system to achieve maximum efficiency and at the same time avoids the circumstances that may lead to the liquid refrigerant damaging the compressor.