Lennox 60L27 TXV

The Lennox 60L27 Thermal Expansion Valve (TXV) is a critical metering component designed for high-tonnage residential and light commercial cooling systems. This 5-ton expansion valve is engineered to provide precise refrigerant control, ensuring optimal superheat levels across varying evaporator loads. Built with a durable brass body, the 60L27 features a 3/8" ODF inlet and a 1/2" ODF outlet, facilitating a robust braze-in connection that eliminates common leak points found in flare-style fittings. The integration of a 30-inch capillary tube allows for flexible sensing bulb placement on the suction line, which is essential for accurate thermal feedback and system hunting prevention. For field technical support, note that the Lennox 60L27 is functionally identical to the 60L2701, making it a direct drop-in for R-410A refrigerant applications where thermal stability and seasonal efficiency are priorities. This OEM part ensures seamless integration with Lennox indoor coils, maintaining the structural integrity of the refrigeration circuit during high-demand cycles.

• Precise Superheat Regulation: Maintains the exact refrigerant flow needed to protect the compressor from liquid slugging while maximizing evaporator efficiency.
• OEM Compatibility: Replaces 60L2701 and fits a wide range of Lennox 5-ton cased and uncased indoor coils.
• Enhanced Durability: The heavy-duty brass construction resists corrosion and provides a reliable seal for high-pressure R410A systems.
• Flexible Installation: The 30" capillary lead provides sufficient length to reach the ideal sensing location on the suction header.

Is the 60L27 compatible with both R-22 and R-410A?
This specific TXV is optimized for R-410A systems. Using it with older R-22 equipment is not recommended as the pressure curves and orifice sizing differ significantly.

What is the difference between 60L27 and 60L2701?
There is no functional difference. Both part numbers represent the same 5-ton Lennox TXV with 3/8" x 1/2" ODF connections.

Why is my system hunting after installing a new TXV?
Ensure the sensing bulb is securely mounted at the 4 or 8 o’clock position on the suction line and properly insulated. Check for non-condensables or a restricted liquid line filter drier which may mimic expansion valve failure.

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.