Lennox Thermal Expansion Valve (TXV)

Lennox thermal expansion valves (TXVs), also called thermostatic expansion valves or A/C expansion valves, control how much refrigerant flows into the evaporator coil in residential and light commercial HVAC systems. Each valve meters refrigerant in response to system conditions. This helps the system run efficiently and keeps cooling output steady.

Key Features:

• Precise refrigerant metering: a temperature-sensing element reads conditions at the evaporator outlet. The valve then adjusts refrigerant flow to maintain proper superheat.
• Efficiency and performance: matching refrigerant flow to the load helps the system cool consistently and use energy efficiently.
• Compressor protection: controlled refrigerant feed helps keep the evaporator from being overfed. This reduces the risk of liquid refrigerant returning to the compressor.
• OEM replacement design: built for Lennox systems, so the fit and function match the original equipment.
• Durable construction: made with brass and other corrosion-resistant materials for long service life.
• Range of options: Lennox offers TXVs in a variety of capacities, refrigerant types and connection styles to suit different system designs.

A failing TXV can cause inconsistent cooling or an iced evaporator coil. Replacing it with a genuine Lennox TXV helps restore system performance. Installation should be done by a qualified HVAC technician. Choose the valve that matches your system's specifications.