Description
The Trane VAL19939 is an OEM thermostatic expansion valve (TXV) engineered for reliable, precise refrigerant metering in R-410A residential and light-commercial cooling systems rated at 3 tons. Designed as a direct Trane replacement, this valve maintains optimal evaporator superheat across varying load conditions, protecting the compressor and maximizing system efficiency.
Key Features
- OEM Trane replacement TXV for assured fit and performance
- Rated for 3-ton system capacity
- Compatible with R-410A refrigerant
- 3/8″ liquid line inlet connection
- 1/2″ suction line outlet connection
- Maintains consistent evaporator superheat under varying load conditions
- Protects compressor from liquid slugging and refrigerant flooding
- Engineered for long service life and minimal maintenance
Application
The VAL19939 TXV is ideal for use in Trane split-system air conditioners and heat pumps utilizing R-410A refrigerant. It meters liquid refrigerant into the evaporator coil in direct response to superheat, ensuring the evaporator operates at peak capacity while preventing liquid refrigerant from returning to the compressor. Always verify compatibility with your specific Trane equipment model before installation.
Installation Notes
- Intended for use by licensed HVAC/R technicians
- Follow all applicable local codes and Trane installation guidelines
- Ensure system is properly evacuated and charged with R-410A per manufacturer specifications
- Secure the sensing bulb per Trane instructions for accurate superheat control
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