Carrier EA36UC050 TXV

The Carrier EA36UC050 is a high-precision HVAC Thermal Expansion Valve (TXV) designed to optimize refrigerant flow in high-capacity cooling systems. Engineered for 5-ton residential and commercial HVAC applications, this R-410A TXV (also compatible with various legacy refrigerants depending on sub-cooling parameters) ensures the evaporator coil maintains a precise superhead, maximizing energy efficiency and preventing liquid slugging in the compressor. This OEM Carrier replacement part features a 5/8" x 7/8" ODF sweat connection, allowing for a reliable, leak-free installation in demanding environments.

Constructed with a bi-metal body for superior thermal response, the EA36UC050 utilizes a 5-foot capillary tube for flexible sensing bulb placement on the suction line. As a critical metering device, it dynamically adjusts the refrigerant orifice in response to heat load changes, ensuring stabilized system pressures. For veteran contractors performing a Carrier AC repair or evaporator coil service, this valve provides the exact factory specifications required to restore a system to its 5-ton nominal performance range without the hunting or starving issues common with generic aftermarket alternatives.

Key Benefits for Contractors:

• Precise Superheat Control: Maintains optimal evaporator efficiency to prevent coil freezing and ensure maximum heat transfer.
• OEM Compatibility: Specifically engineered for Carrier, Bryant, and Payne 5-ton air handlers and cased coils.
• Durable Construction: High-grade bi-metal design resists corrosion and maintains calibration over long-term thermal cycling.
• Streamlined Installation: Features standard 5/8" x 7/8" ODF connections for efficient brazing during TXV replacement.

Common Technical Questions:

What are the symptoms of a failing EA36UC050 TXV?
Technicians typically observe a starved evaporator (low suction pressure, high superheat) if the valve is stuck closed, or a flooded evaporator (high suction pressure, low superheat) if it is stuck open or hunting. Low amp draw on the compressor is also a common indicator of a restricted valve.

Is this valve compatible with R-410A systems?
Yes, this thermal expansion valve is specifically designed for R-410A refrigerant applications but can be utilized in various configurations where a 5-ton metering capacity is required.

Where should the sensing bulb be mounted?
For the 7/8" suction line typically paired with this 5-ton valve, the bulb should be securely strapped at the 12 o'clock position (or between 4 and 8 o'clock for larger lines) on a horizontal run, fully insulated to ensure accurate temperature sensing.

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.