Lennox R410A Thermal Expansion Valve

The Lennox R410A Thermal Expansion Valve (TXV), also called a thermostatic expansion valve or A/C expansion valve, is an OEM metering device for Lennox air conditioning and heat pump systems that use R-410A refrigerant. It controls how much liquid refrigerant enters the evaporator coil, so the system can match its cooling output to the load.

Key Features:

• Genuine Lennox OEM replacement TXV designed for R-410A systems
• Regulates refrigerant flow according to superheat at the evaporator outlet
• Helps protect the compressor and supports efficient, stable cooling
• Sweat-style ODF (outside diameter, female) connections for the refrigerant lines
• Durable copper-tube construction for long service life
• Suited to residential and light-commercial split systems

Using the correct factory-specified expansion valve helps keep refrigerant flow, superheat and system efficiency where Lennox designed them. Choose the variant that matches your system's rated capacity.