Description
Carrier 331709-753 Thermal Expansion Valve — R-22, 5 Ton
The Carrier 331709-753 is an OEM thermal expansion valve (TXV) engineered for reliable refrigerant metering in R-22 air conditioning and refrigeration systems rated at 5 tons. Designed to Carrier’s exacting standards, this direct-replacement TXV ensures your system maintains the precise superheat control needed for efficient, stable operation — protecting the compressor and maximizing system performance.
Key Features
- OEM Carrier replacement thermal expansion valve
- Rated for R-22 refrigerant systems
- 5-ton system capacity
- Provides accurate refrigerant metering and superheat control
- Helps protect the compressor from liquid slugging
- Direct drop-in replacement for compatible Carrier equipment
- Built to Carrier OEM quality and performance specifications
Why TXV Quality Matters
A properly functioning thermal expansion valve is critical to system efficiency and longevity. By modulating refrigerant flow in response to evaporator load, the TXV maintains optimal superheat at the evaporator outlet — preventing refrigerant flooding back to the compressor and ensuring the evaporator coil is fully utilized. Using a genuine Carrier OEM replacement like the 331709-753 eliminates compatibility guesswork and helps restore system performance to factory specifications.
Specifications
- Part Number: 331709-753
- Brand: Carrier
- Type: Thermal Expansion Valve (TXV)
- Refrigerant: R-22
- Capacity: 5 Ton
Application
Ideal for HVAC technicians and contractors performing service or replacement on Carrier residential and light commercial R-22 air conditioning systems. Always verify compatibility with your specific equipment model before installation.







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