Copeland 910-0347-03 Demand Cooling Valve
The Copeland 910-0347-03 Demand Cooling Valve Kit is a liquid injection valve assembly used in demand cooling, the system that protects a compressor from excessive discharge temperature. Distributors catalogue it as a 4D demand cooling valve kit and describe it as a demand cooling valve kit for scroll or semi-hermetic compressors. The photo shows the assembly: a copper tube with a brass flare nut, a brass valve body, and the valve stem end.
Demand cooling is a controlled form of liquid injection. When a compressor runs at a high compression ratio, such as low-temperature refrigeration, discharge gas temperature can climb past a safe level, which breaks down oil and shortens valve and bearing life. Demand cooling responds by metering a small amount of liquid refrigerant into the compressor to hold the temperature down. The valve assembly in this kit is the part that does the injecting, so a failed valve can leave the compressor running hot with no protection.
Demand cooling parts come in several numbers, so match the one on your system. Copeland also lists the 910-0349-05, 910-0351-03 and 910-0361-03 demand cooling valve kits, so compare your original assembly to the photo and the part number before you order. Work with the system pumped down and de-energized, use proper brazing practice for the copper connections, protect the valve body from heat, and pressure-test and evacuate before restoring the charge. Confirm compatibility with your compressor model before you order. A system that has been running hot should be checked for the cause as well as the valve.
Key Benefits
- Liquid Injection Protection: The valve assembly meters refrigerant into the compressor to hold discharge temperature in check.
- Copeland OEM Part: A genuine Copeland kit rather than a generic valve.
- Copper and Brass Construction: The photo shows a copper tube with a brass flare nut and a brass valve body.
- Part of a Documented Family: Sits with the 910-0349-05, 910-0351-03 and 910-0361-03 demand cooling valve kits.
Common Questions
- What does the 910-0347-03 do? It is the liquid injection valve assembly in a Copeland demand cooling system, which controls discharge temperature.
- Which compressors use demand cooling? Distributors catalogue this kit as a 4D demand cooling valve kit for scroll or semi-hermetic compressors. Confirm your compressor model before ordering.
- Is the kit a complete demand cooling system? It is catalogued as a valve kit. Confirm what your system needs before you order.