Carrier EA36UZ031 Expansion Valve

The Carrier EA36UZ031 Expansion Valve is a Factory Authorized Parts thermostatic expansion valve (TXV) engineered specifically for R-410A refrigerant systems. This 3-ton capacity metering device utilizes a 3-foot capillary tube and a precision-charged sensing bulb to modulate refrigerant flow into the evaporator coil, maintaining a constant superheat across varying thermal loads. Professionals recognize the EA36UZ031 for its robust bi-metal construction, which provides superior corrosion resistance and reliable performance in both residential and light commercial air conditioning applications. By accurately responding to suction line temperature changes, this thermostatic expansion valve prevents liquid slugging and optimizes compressor longevity. Designed as a direct OEM replacement, it ensures a perfect fit in Carrier, Bryant, and Payne units, maintaining the exact pressure-drop characteristics required for high-efficiency operation. For technicians performing a system overhaul or resolving TXV failure, this valve provides the precise mechanical metering necessary to restore factory-spec cooling performance.

• Precise Superheat Control: The 3ft capillary and sensing bulb respond rapidly to load variations, ensuring the evaporator coil is properly fed without over-saturation.
• OEM Compatibility: This is a genuine Carrier part, ensuring seamless integration with existing liquid lines and distributor assemblies.
• R-410A Optimized: Factory-calibrated for the unique pressure-temperature relationship of R-410A refrigerant systems.
• Durable Bi-Metal Design: Constructed to withstand high-vibration environments and prevent internal refrigerant bypass.
• Efficiency Protection: Prevents compressor damage by ensuring only vapor returns to the suction line, even during low-ambient cooling cycles.

Is the Carrier EA36UZ031 compatible with older R-22 systems?
No, this valve is specifically designed and calibrated for R-410A refrigerant pressures. Using it with R-22 will lead to incorrect superheat and potential system failure.

What is the tonnage rating for this specific TXV?
The EA36UZ031 is a 3-ton expansion valve. Always verify the tonnage of the outdoor unit and the matching indoor coil before installation.

Does this valve require an external equalizer line?
Technical specifications for this OEM series typically utilize an internal or external equalizer depending on the specific coil header; technicians should verify the existing configuration on the Carrier or Bryant evaporator before brazing.

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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.