Description
The Carrier 331709-751 is an OEM thermal expansion valve (TXV) engineered specifically for R-22 refrigerant systems rated at 3 tons of cooling capacity. Designed as a direct factory replacement, this valve delivers precise refrigerant metering to maintain optimal evaporator performance, protect the compressor from liquid slugging, and maximize overall system efficiency.
Thermal expansion valves are the heart of a properly functioning refrigeration circuit. By continuously modulating refrigerant flow in response to superheat conditions at the evaporator outlet, the Carrier 331709-751 ensures your system operates at peak capacity across a wide range of load conditions — reducing energy consumption and extending equipment life.
Key Features
- OEM Carrier replacement part — ensures fit, form, and function compatibility
- Designed for R-22 refrigerant systems
- Rated for 3-ton cooling capacity
- Precise superheat control for optimized evaporator performance
- Helps protect the compressor from liquid refrigerant slugging
- Supports consistent system efficiency across varying load conditions
- Direct drop-in replacement for simplified installation
Application
- Compatible with Carrier residential and light commercial air conditioning systems using R-22 refrigerant
- Ideal for service technicians performing TXV replacement on existing 3-ton Carrier equipment
Specifications
- Part Number: 331709-751
- Brand: Carrier
- Refrigerant Type: R-22
- Capacity: 3 Ton
- Component Type: Thermal Expansion Valve (TXV)
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