Refrigerant Line With Inner Heat EXCHANGER

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In this refrigerant pipe, the flowing fluid warm refrigerant on the high pressure side is delivered into the low pressure side as flowing, vapor, cold refrigerant to increase the efficiency of the A/C system.

Fig 1: Identifying Refrigerant Pipe With Inner Heat Exchanger

Courtesy of AUDI OF AMERICA, LLC

NOTE:

This illustration shows a refrigerant pipe with an inner heat exchanger that is installed in the Audi A4 from MY 2008 and on the Audi A5 Coupe from MY 2008. Refer to OVERVIEW - REFRIGERANT CIRCUIT (vehicle-specific repair information).

A - Refrigerant line with inner heat exchanger

B - Channel inside the refrigerant pipe through with the warm fluid refrigerant flows to the evaporator (refrigerant circuit high pressure side)

C - Channel inside the refrigerant pipe in which the vapor of cold refrigerant flow to the A/C compressor (refrigerant circuit low pressure side)