Description
Trane VAL3523 Thermostatic Expansion Valve Overview
The Trane VAL3523 is an OEM-quality Thermostatic Expansion Valve (TXV) engineered for 2-ton residential and light-commercial cooling systems. Featuring 3/8″ inlet and 1/2″ outlet connections, this valve precisely meters refrigerant flow into the evaporator coil, ensuring optimal system efficiency, consistent superheat control, and long-term equipment reliability.
Key Features
- OEM Trane replacement TXV for accurate, drop-in fitment
- 2-ton (24,000 BTU/hr) rated capacity
- 3/8″ liquid-line inlet x 1/2″ suction-line outlet connections
- Thermostatic design maintains consistent superheat across varying load conditions
- Helps prevent compressor flooding and ensures efficient evaporator performance
- Durable construction for long service life in residential and light-commercial applications
Application
Designed as a direct OEM replacement for compatible Trane and American Standard split-system air conditioners and heat pumps. Proper TXV operation is critical to maintaining system efficiency, protecting the compressor from liquid slugging, and achieving rated SEER performance.
Why Choose an OEM TXV?
Using a genuine Trane replacement valve ensures the correct bulb charge, superheat setting, and port sizing for your specific system. This eliminates guesswork, reduces callback risk, and helps maintain manufacturer warranty compliance.
Installation Notes
- Always recover refrigerant and follow EPA Section 608 regulations before replacing the TXV
- Secure the sensing bulb firmly to the suction line and insulate properly for accurate superheat control
- Verify system refrigerant type and charge after installation
- Consult the Trane equipment service manual for torque specifications and bulb placement guidelines
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