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Built to meet stringent OEM specifications
Always verify the specific pneumatic control sequence before swapping units
Pressure Integrity: Restores factory-spec operating pressure differentials for consistent fluid control
specialized seals and housing materials should be verified before installation
this specific 1164280 assembly is designed for 90% (condensing) secondary heat exchanger systems
Carrier EA52PH073 Metering Device 321142-301 Built to meet stringent OEMThe Carrier EA52PH073 Metering Device is a precision engineered fixed orifice piston designed for accurate refrigerant flow control in residential and light commercial AC and heat pump systems. This Carrier OEM replacement part ensures consistent pressure drops across the evaporator coil, maintaining peak thermodynamic efficiency. Built from high grade brass to resist corrosion and withstand high pressure fluctuations, the EA52PH073 piston is critical
