Lennox 25W22 Thermal Expansion Valve(Txv) Valve

The Lennox 25W22 Thermostatic Expansion Valve (TXV) is designed to provide accurate regulation of refrigerant based on current building occupancies in residential and light commercial HVAC systems. The TXV controls the amount of refrigerant allowed into the evaporator coil to enhance cooling both in performance and efficiency. The operation of the valve is based on the determination of the temperature of the refrigerant leaving the evaporator. At some given point when the temperature is low the TXV opens permitting more refrigerant to add to the system which will enhance its cooling capacity.