Description
The Carrier EA52PH084 is a genuine OEM piston metering device designed to deliver accurate refrigerant flow control in compatible Carrier HVAC systems. Pistons serve as fixed-orifice metering devices that regulate the flow of liquid refrigerant entering the evaporator coil, playing a critical role in system efficiency and performance.
Product Overview
This #84 piston is manufactured to Carrier’s exact OEM specifications, ensuring a proper fit and reliable operation in systems originally equipped with this metering device. Using a genuine OEM replacement piston helps maintain the system’s rated efficiency and prevents issues associated with incorrect refrigerant metering, such as poor capacity, icing, or compressor damage.
Key Features
- Genuine Carrier OEM replacement piston
- Piston size #84 for precise refrigerant metering
- Fixed-orifice design for consistent, reliable refrigerant flow control
- Engineered to maintain original system efficiency ratings
- Direct OEM replacement — no modifications required
- Compatible with Carrier systems specifying the EA52PH084 piston
Application
This piston is intended for use in Carrier residential and light commercial HVAC systems that utilize a fixed-orifice metering device. Always verify compatibility with your specific equipment model before installation. Refer to your system’s service manual or the Carrier parts lookup tool to confirm the correct piston size for your application.
Installation Notes
- Ensure the system is properly recovered and depressurized before replacing the piston
- Inspect the piston housing and o-rings for wear or damage during replacement
- Verify refrigerant type and system design conditions are appropriate for this piston size
- Follow all applicable local codes and manufacturer guidelines during installation







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