Lennox 59W20 Thermal Expansion Valve(TXV) 3/8" X1/2" ODF 30" Cap 1/4"

The Lennox 59W20 is a Thermal Expansion Valve, it is a brass component in HVAC systems. This is essential in controlling the flow of refrigerant about the temperature inside the evaporator coil. Through the temperature changes, the TXV controls the flow of the refrigerant that goes to the coil to avoid icing and improve the cooling capacity. This translates to several benefits for HVAC systems including better system efficiency, better temperature control, and less chances of evaporator icing. The TXV prevents too much refrigerant from entering the evaporator coil thus preventing ice formation on the coil, which reduces the system’s cooling capability.