The Carrier EA36DC345 Expansion Valve is a precision-engineered thermostatic expansion valve (TXV) designed specifically for R-410A refrigerant systems. This direct replacement TXV ensures optimal superheat control across varying evaporator loads, maintaining high-side pressure stability while preventing liquid slugging in the compressor. As a critical metered flow component, the EA36DC345 features a balanced port design to handle rapid cycles in HVAC residential split systems and light commercial units. For technicians performing a Carrier AC repair, this valve provides the necessary modulation to maximize the SEER rating of the matching air handler or coil. The durable brass body and stainless steel power element are built to withstand the thermal stresses of high-capacity cooling cycles. When troubleshooting a stuck thermal expansion valve, replacing it with this OEM-spec component ensures refrigerant flow control aligns with the original manufacturer's factory settings, restoring system efficiency and preventing evaporator freeze-ups in high-humidity environments.

Key Performance Benefits

• Accurate Superheat Regulation: Maintains precise refrigerant metering to protect the compressor from liquid floodback.
• OEM Compatibility: Specifically engineered for Carrier, Bryant, and Payne evaporator coils utilizing R-410A.
• Pressure Equalization: Features internal equalization to simplify installation and ensure stable operation during startup.
• Optimized Heat Transfer: Prevents hunting and provides steady-state performance for improved indoor humidity control.

Common Questions

What are the symptoms of a failing Carrier EA36DC345?
Common indicators include evaporator coil icing, high discharge temperatures, or the compressor running constantly with low suction pressure. Technicians should check for a clogged internal screen or a lost charge in the power element.

Is this valve compatible with older R-22 systems?
No, this component is calibrated specifically for the pressure-temperature relationships of R-410A. It should not be used in systems utilizing different refrigerant types.

Does this TXV require a specific tailpipe orientation?
The sensing bulb must be securely strapped at the 12 o'clock, 4 o'clock, or 8 o'clock position on a horizontal suction line (depending on pipe diameter) and properly insulated to ensure accurate temperature readings.

Notes

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.