Carrier EA36UC040 Expansion Valve

The Carrier EA36UC040 Expansion Valve is a critical OEM HVAC part engineered specifically for high-efficiency refrigerant metering in Carrier residential air conditioning and heat pump systems. As a genuine Thermostatic Expansion Valve (TXV), it utilizes a precision sensing bulb and internal diaphragm to modulate R-410A refrigerant flow into the evaporator coil, maintaining a constant superheat and protecting the compressor from liquid slugging. When you are diagnosing a system with poor subcooling or erratic suction pressures, replacing a restricted or failed valve with this Carrier replacement TXV ensures the system operates within its original factory specifications. Designed for high-pressure R-410A environments, this valve features durable construction to handle the thermal stresses of modern high-SEER equipment. For contractors, using this HVAC expansion valve eliminates the compatibility issues common with universal aftermarket kits, ensuring the mechanical connections and bulb placement align perfectly with the original cabinet design.

• Precise Superheat Control: Maintains optimal evaporator efficiency to prevent compressor floodback and ensure maximum heat transfer.
• OEM Compatibility: Exact physical fit for Carrier EA36UC040 installations, reducing field labor time and brazing complications.
• System Efficiency: Restores factory-rated SEER performance by accurately regulating refrigerant mass flow during varying load conditions.
• Durable Construction: Engineered to withstand the specific operating pressures and temperatures of residential R-410A systems.

Is the Carrier EA36UC040 compatible with R-22 systems?
No, this Thermostatic Expansion Valve (TXV) is specifically calibrated for R-410A refrigerant pressures and properties. Using it in an R-22 system will result in improper metering and potential system damage.

What are the symptoms of a failing EA36UC040 TXV?
Technicians typically observe high discharge pressure, low suction pressure, and high superheat levels at the evaporator outlet, often indicating a restricted or "stuck closed" valve.

Does this valve require an external equalizer line?
The Carrier EA36UC040 is designed to match specific Carrier evaporator coils; you must verify if your existing header assembly includes an external equalizer port before brazing the new component.

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.