Lennox 47K22 TXV

For service technicians requiring a field-ready solution for refrigerant metering, the Lennox 47K22 TXV provides the tight superheat control necessary for modern high-efficiency systems. This thermal expansion valve features a 3-ton capacity and is engineered for broad compatibility with R-410A, R-404A, and R-134a. The assembly includes a 30-inch capillary tube designed for flexible mounting and bulb placement on the suction line. As the manufacturer's direct replacement for 1066007, this valve ensures seamless mechanical fitment in Lennox HVAC equipment, specifically supporting 3.5 to 5-ton system configurations depending on the evaporator coil match. The 3/8-inch x 1/2-inch ODF (Outside Diameter Flare) connections allow for standard brazing procedures, providing a secure, leak-free transition within the liquid line and evaporator inlet. This OEM Lennox part is critical for technicians troubleshooting flooded evaporators or hunting suction pressures, ensuring the HVAC expansion valve maintains optimal mass flow regardless of load variations.

• Precise Refrigerant Flow: Regulates liquid refrigerant into the evaporator to prevent liquid slugging of the compressor.
• Direct OEM Compatibility: Engineered as the exact replacement for Lennox 106600-07 to maintain original equipment performance.
• Multi-Refrigerant Versatility: Optimized for R-410A systems but compatible with multiple refrigerants for varied service applications.
• Durable Construction: High-grade 3/8 x 1/2 ODF TXV body designed to withstand high-side pressure spikes and extreme temperatures.
• Extended Capillary Reach: The 30-inch line allows for professional routing away from heat sources during installation.

Is the Lennox 47K22 compatible with R-22 systems?
This valve is primarily designed for high-pressure refrigerants like R-410A. While it supports other HFCs, it is not recommended for legacy R-22 retrofits without verifying power element compatibility.

Does this TXV include the internal check valve for heat pump applications?
Yes, this Lennox 47K22 thermal expansion valve is designed for standard cooling and heat pump configurations where bi-directional flow or internal bypass is required in the outdoor unit or indoor coil.

What are the connection sizes for the 47K22?
This unit features 3/8-inch ODF inlet and 1/2-inch ODF outlet connections, standard for 3-ton capacity TXVs.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.