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specialized seals and housing materials should be verified before installation
Built to meet stringent OEM specifications
including DR036 to DR072 models
this specific 1164280 assembly is designed for 90% (condensing) secondary heat exchanger systems
Does this thermostat require a common wire
Carrier EA52PH073 Metering Device 321142-301 specialized seals and housing materialsThe 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
