the professional-grade solution for restoring critical system logic in light commercial and residential heating units

Designed with a Single Pole Single Throw (SPST) switch action

ensuring that heating equipment remains compliant with safety regulations

or warping that affects the flame envelope

Carrier EA03XC389 Expansion Valve 322055-301 the professional-grade solution for restoringThe Carrier EA03XC389 Electronic Expansion Valve is a high precision OEM metering component designed to optimize refrigerant flow in high efficiency Carrier and Bryant HVAC systems. As the direct replacement for EA03XC383, this EXV ensures seamless compatibility with existing evaporator coils and control boards, eliminating the calibration drift common in aging mechanical thermostatic valves. Built for R 410A applications, the EA03XC389 utilizes step