Lennox 52W74 Thermal Expansion Valve is a genuine OEM R-410A replacement component for select Lennox air conditioning and heat pump systems.
Designed to regulate refrigerant flow at the evaporator coil, this valve helps maintain proper superheat, improve heat transfer, and support consistent cooling performance.
Also known as part number 100679-28, it is an OEM service replacement part for compatible equipment requiring precise refrigerant metering, correct fit, and dependable operation.
The Lennox 52W74 helps restore balanced system performance and reliable operation in compatible R-410A HVAC applications.
Capacity
Up to 10 Tons
Type
Brass construction, threaded connection, includes sensing bulb
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