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Always verify the specific pneumatic control sequence before swapping units
As a lock-up style gas regulator
this specific 1164280 assembly is designed for 90% (condensing) secondary heat exchanger systems
this HVAC blower motor features advanced electronics to maintain precise torque and speed control
including DR036 to DR072 models
Carrier EA52PH073 Metering Device 321142-301 Always verify the specific pneumaticThe 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
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