Description
The Trane VAL11978 is an OEM thermostatic expansion valve (TXV) engineered for 5-ton R-410A refrigerant systems. Designed to deliver precise refrigerant metering, this TXV maintains optimal superheat levels across a wide range of operating conditions, protecting the compressor and maximizing system efficiency.
Key Features
- OEM Trane replacement TXV for reliable, factory-spec performance
- Rated for 5-ton system capacity
- Compatible with R-410A refrigerant
- Provides accurate superheat control to protect compressor integrity
- Helps maintain peak system efficiency and comfort levels
- Direct drop-in replacement minimizes installation time and labor
What Is a TXV?
A thermostatic expansion valve (TXV) is a precision refrigerant metering device that regulates the flow of liquid refrigerant into the evaporator coil. By maintaining the correct superheat at the evaporator outlet, the TXV ensures the compressor receives only fully vaporized refrigerant — preventing liquid slugging and extending equipment life.
Application
- Designed for use in Trane residential and light commercial split-system air conditioners and heat pumps
- Suitable for 5-ton R-410A refrigerant circuit applications
- Ideal for service replacement of failed or underperforming TXVs
Why Choose OEM?
Using a genuine Trane OEM TXV ensures compatibility with your existing equipment, preserves manufacturer warranties, and delivers the performance specifications your system was designed around. The VAL11978 is the correct factory part for applicable Trane 5-ton R-410A equipment.
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