Carrier EA52PH049 Piston

The Carrier EA52PH049 Piston is a precision-engineered fixed-orifice metering device designed to regulate refrigerant flow within the evaporator coil of Carrier, Bryant, and Payne systems. Featuring a critical 1.249mm internal orifice diameter, this component is essential for maintaining the specific pressure drop required for efficient phase change and heat absorption. For contractors performing a piston-to-TXV conversion or replacing a fouled metering piston, this OEM part ensures your system hits the exact superheat requirements specified by the manufacturer.

Constructed for high-duty cycles, the EA52PH049 handles high-pressure environments common in R-410A systems and older R-22 units. The low friction coefficient of the brass piston body prevents sticking, ensuring consistent refrigerant flow control and preventing liquid slugging in the compressor. When troubleshooting an AC not cooling or an evaporator coil freezing, verifying the piston size against the outdoor unit’s charging chart is a standard diagnostic step. This 0.5-inch HVAC piston is compatible with a wide range of fan coils and cased coils where a fixed orifice is required for optimal HVAC system performance.

• Precise Metering: Delivers a consistent 1.249mm aperture to ensure accurate refrigerant expansion.
• OEM Compatibility: Authentic Carrier replacement part designed for seamless integration into residential HVAC systems.
• Durability: Engineered to withstand extreme temperature fluctuations and high-pressure differentials without degradation.
• System Efficiency: Optimizes heat exchange to maintain the SEER2 rating of the overall cooling system.

• How do I confirm if the EA52PH049 is the correct size? Always refer to the rating plate on the outdoor condensing unit; the required piston size is typically listed next to the refrigerant type to ensure proper matching with the indoor coil.
• Can this piston be used with R-410A refrigerant? Yes, this metering device is rated for the pressures associated with R-410A, provided the orifice size matches the tonnage of the outdoor unit.
• What are the signs of a failing HVAC piston? Common indicators include irregular superheat readings, frost on the liquid line, or a noticeable drop in cooling capacity due to debris clogging the orifice.

This item is not eligible for free shipping.

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.