Lennox 60L36 Expansion Valve

The Lennox 60L36 Expansion Valve is a critical OEM replacement thermostatic expansion valve engineered for precision refrigerant metering in high-efficiency residential and light commercial HVAC systems. This TXV effectively replaces discontinued part number 60L3601, providing the necessary modulation to maintain evaporator superheat across varying load conditions. Constructed from heavy-duty brass, this valve features a 3/8-inch inlet and 1/2-inch outlet configuration, making it compatible with a wide range of R-410A Lennox packaged units and split system central air conditioners. As a primary metering device, it reacts to internal pressure and temperature changes to optimize heat exchange, directly preventing common failure modes such as evaporator coil icing or liquid slugging of the compressor. For HVAC professionals, this 3-ton capacity valve ensures restored system equilibrium and peak energy efficiency after a restricted or stuck expansion valve is identified during diagnostic manifold gauge readings.

• Precision Refrigerant Control: Maintains exact superheat levels to maximize system cooling capacity and prevent compressor damage.
• OEM Compatibility: Designed specifically for Lennox equipment to replace the legacy 60L3601 expansion valve without field modifications.
• Durable Brass Construction: Resists corrosion and mechanical wear in high-pressure environments typical of modern cooling systems.
• Optimized Energy Consumption: Regulates the flow of refrigerant to ensure the unit operates at its rated SEER performance.

What are the symptoms of a failing Lennox 60L36 expansion valve?
Technicians typically observe low suction pressure combined with high superheat, or visible evaporator coil icing even when airflow is unobstructed. If the valve is stuck open, you may see floodback to the compressor.

Is this TXV compatible with R-22 or R-410A systems?
This specific Lennox 60L36 model is optimized for R-410A high-pressure systems. Always verify the refrigerant type and tonnage on the unit nameplate before installation.

Should I replace the filter drier when installing this valve?
Yes. To ensure long-term performance and prevent debris from clogging the new metering device, a new liquid line filter drier is required during any refrigerant circuit repair.

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.