The Carrier EA02DZ454 is a thermostatic expansion valve designed for precise refrigerant metering in high-capacity residential and commercial cooling systems. This R22 expansion valve is also fully compatible with R407C refrigerant, making it a critical component for retrofits and repairs on older equipment. Featuring a 5/8 x 7/8 ODF connection, the EA02DZ454 serves as the direct Carrier EA02DZ450 replacement, ensuring seamless integration into existing liquid and suction lines without extensive piping modifications. As a balanced port HVAC TXV, it maintains stable superheat across wide variations in head pressure, protecting the compressor from liquid slugging while maximizing evaporator coil efficiency. For technicians troubleshooting Carrier AC TXV symptoms or performing a full system recharge, this valve provides the reliability required for long-term operational stability. Ensure proper bulb placement and insulation on the suction line to maintain accurate thermal sensing and optimal system performance.

• Multi-Refrigerant Compatibility: Engineered for use with both R22 and R407C, ideal for maintenance on legacy Carrier and Bryant systems.
• Drop-in Replacement: Specifically designed to replace the legacy EA02DZ450 part number with the same footprint and TXV connection size.
• Precision Superheat Control: Maintains consistent evaporator loading to prevent compressor floodback or overheating.
• Rugged Construction: Built for high-pressure environments, ensuring thermal stability and leak resistance in the field.

What are the symptoms of a failing Carrier TXV?
Common indicators include high suction pressure with high superheat, frost formation on the evaporator coil, or the system failing to reach the desired setpoint despite correct refrigerant levels.

Is the EA02DZ454 compatible with R410A?
No, this specific valve is calibrated for the pressure-temperature profiles of R22 and R407C. Using it with R410A will result in improper metering and potential system damage.

Does this valve come with the sensing bulb and mounting hardware?
This Carrier OEM part includes the integrated sensing bulb required for accurate temperature measurement at the evaporator outlet.

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.