Description
Trane VAL8989 5-Ton Thermostatic Expansion Valve — R-410A
The Trane VAL8989 is an OEM thermostatic expansion valve (TXV) engineered for reliable refrigerant metering in 5-ton residential and light commercial cooling systems using R-410A refrigerant. Designed to maintain optimal evaporator superheat across varying load conditions, this TXV helps protect the compressor and maximize system efficiency.
Key Features
- Rated for 5-ton system capacity
- Compatible with R-410A refrigerant
- 3/8″ inlet x 1/2″ outlet sweat (solder) connections for straightforward installation
- Provides precise refrigerant metering to maintain proper evaporator superheat
- OEM Trane replacement part for reliable, factory-matched performance
- Helps safeguard compressor by preventing liquid refrigerant floodback
- Suitable for residential and light commercial split-system air conditioning applications
Specifications
- SKU: VAL8989
- Brand: Trane
- Capacity: 5 Ton
- Refrigerant: R-410A
- Inlet Connection: 3/8″ Sweat (ODF)
- Outlet Connection: 1/2″ Sweat (ODF)
- Valve Type: Thermostatic Expansion Valve (TXV)
Application
The VAL8989 is a direct OEM replacement TXV for Trane split-system air conditioners and heat pumps operating on R-410A. Installing a factory-matched TXV ensures proper superheat calibration, optimal energy efficiency, and long-term system reliability. Always verify compatibility with your specific equipment model before installation.







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