Lennox R103366-24 OEM Thermal Expansion Valve (TXV) Replacement

The Lennox R103366-24 is an OEM replacement Thermal Expansion Valve (TXV) designed for use in Lennox HVAC systems. Also commonly referred to as a thermostatic expansion valve or TEV, this precision refrigeration component regulates the flow of refrigerant into the evaporator coil to maintain optimal system performance and efficiency.

The TXV monitors evaporator conditions and modulates refrigerant flow accordingly, preventing overfeeding of the evaporator coil, maintaining proper superheat levels, and protecting the compressor from damage caused by refrigerant flooding. Replacing a faulty TXV can resolve symptoms such as inconsistent cooling, evaporator coil icing, or reduced system efficiency.

Key Features:

• Genuine Lennox OEM replacement part number R103366-24
• Regulates refrigerant flow to maintain proper evaporator superheat
• Helps maximize system energy efficiency and extend equipment lifespan
• Precision-engineered for accurate and dependable refrigerant flow control
• Designed for compatibility with Lennox residential and light commercial HVAC equipment
• Professional installation by a certified HVAC technician recommended

The Lennox R103366-24 TXV valve is part of the 103366 series of Lennox expansion valves, engineered to OEM specifications to ensure a proper fit and reliable long-term operation in compatible Lennox systems.