The Lennox 11Y29 (104413-01) Thermal Expansion Valve is a precision-engineered 3-ton R-410A metering device designed to maintain optimal refrigerant flow and system performance in compatible Lennox air conditioning and heat pump systems. This OEM TXV ensures accurate superheat control, improved efficiency, and stable operation across varying load conditions. Ideal for restoring factory performance, preventing coil freeze-ups, and ensuring reliable long-term operation in residential and light commercial systems.

 

Features:

• Genuine Lennox OEM 3-ton thermal expansion valve for R-410A systems
• Provides precise refrigerant metering to optimize cooling efficiency
• Helps prevent coil flooding and maintain consistent superheat levels
• Ensures proper system operation under varying temperature and load conditions
• Durable construction for long-term reliability and system protection
• Direct replacement for Lennox part number 104413-01