The Carrier EA03SC221 TXV is a high-precision thermostatic expansion valve engineered for R-410A systems, serving as the official OEM direct replacement for EA03XC480. Designed for heavy-duty HVACR applications, this thermal expansion valve operates within a 0-600 PSIG pressure range and a temperature envelope of -40°F to 140°F. It utilizes an ODF solder connection to ensure leak-free integration into the liquid line. For technicians troubleshooting superheat issues, this valve provides the necessary modulation to prevent evaporator coil freezing and protect the compressor from liquid slugging. When performing a Carrier TXV replacement, ensure the sensing bulb is mounted at the 3 or 9 o'clock position on the suction line and properly insulated to prevent false readings. This HVAC expansion valve is a critical component for maintaining target subcooling and optimizing refrigerant flow across varying thermal loads in 39T series and other compatible Carrier/Bryant/Payne evaporators.

• Precise Superheat Control: Maintains consistent refrigerant flow to maximize heat transfer efficiency and prevent compressor floodback.
• Direct OEM Compatibility: Specifically designed as the EA03SC221 replacement for discontinued part EA03XC480, ensuring exact fitment and factory-spec performance.
• R-410A Optimized: Built to handle the high-pressure demands of R-410A systems with a rugged 600 PSIG rated body.
• Reliable Solder Joints: Features ODF solder connections for a permanent, vibration-resistant seal in commercial or residential split systems.

What refrigerant is the Carrier EA03SC221 compatible with?
This valve is designed specifically for R410A refrigerant systems. Always verify the refrigerant type on the unit data tag before installation.

Can I use this to replace an EA03XC480 valve?
Yes, the EA03SC221 is the manufacturer-designated direct replacement for the EA03XC480. Internal tolerances and capacities are matched to the original specifications.

Why is my new TXV causing high superheat?
High superheat often indicates the valve is starving the evaporator. Before assuming a defective valve, check for liquid line restrictions, ensure the sensing bulb is tightly strapped/insulated, and verify that the system has the proper subcooling charge.

Item is Non Cancelable / Non Returnable

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.