The Carrier EA03XC389 Electronic Expansion Valve is a precision refrigerant control component designed for compatible Carrier HVAC systems. It regulates refrigerant flow into the evaporator coil through electronically controlled adjustments based on system operating conditions. This precise metering helps maintain proper refrigerant distribution, optimize heat transfer, and support ef... https://www.partshnc.com/ea03xc389-carrier-electronic-expansion-valve