For contractors servicing Carrier air conditioning and fan coil units, the Carrier 99CC502453 Piston Body is a critical OEM replacement part designed to regulate refrigerant flow with precision. This fixed orifice metering device facilitates the necessary pressure drop for efficient heat exchange, ensuring the evaporator coil receives the correct saturation levels for optimal cooling. Engineered from high-grade, corrosion-resistant brass, this mechanical component is built to withstand the high-pressure cycles common in commercial HVAC systems, maintaining system balance and reducing the risk of compressor slugging or liquid bypass. As a genuine Carrier part, it guarantees exact fitment in assemblies like the 40YR-030-300, eliminating the performance variability often found in aftermarket substitutes. Utilizing a piston body that meets original factory tolerances is essential for technicians looking to re-establish a unit's AHRI-rated efficiency and operational reliability. This specialized part is vital for preventing common issues like low superheat or improper refrigerant metering during demanding cooling cycles.

• Precision Refrigerant Control: Fixed orifice design ensures consistent flow rates to the evaporator, maintaining system thermal equilibrium.
• Rugged Durability: Constructed from heavy-duty brass to resist chemical oxidation and mechanical wear in high-pressure refrigeration circuits.
• OEM Fitment: Designed specifically for Carrier 40YR series and compatible fan coils to ensure a leak-free mechanical connection.
• System Efficiency: Restores factory-spec performance, preventing high energy consumption caused by improper metering.

• What does the 99CC502453 piston body do? It serves as a fixed metering device that regulates the amount of refrigerant entering the evaporator, creating the pressure drop needed for heat absorption.
• Is this part compatible with R-410A systems? Yes, this piston body is designed to handle the pressures associated with standard Carrier residential and commercial refrigerant applications.
• Which direction should the piston face? The conical end must face the distributor/inlet to ensure the Teflon ring seats correctly and prevents refrigerant bypass.

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.