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Refrigerant circuit, function - GF83.40-P-2001GI

MODEL 163 as of 1.9.01 with code (580a) Automatic air conditioning 

Fig 1: Identifying Refrigerant Circuit, Function (Model 163 As Of 1.9.01 With Code (580A) Automatic Air Conditioning)
G04608940Courtesy of MERCEDES-BENZ USA

The refrigerant compressor driven by the motor compresses the gaseous refrigerant, which is thereby heated up and routed to the condenser.

The refrigerant's compression heat is then withdrawn on the surface of the condenser. While cooling down, the refrigerant liquefies.

When the refrigerant flows through the fluid reservoir it is cleansed of any chemical and mechanical impurities. The water contained in the refrigerant is separated and collected.

The expansion valve sprays the cooled and liquefied refrigerant into the evaporator, which is located in the fresh-air flow. Here the refrigerant is vaporized. Through this evaporation process heat is extracted from the fresh air flowing past from outside over the tube and fin system so that air cools down.

The air humidity carried along is converted to condensed water, which escapes into the open. The air dries out.

The refrigerant compressor aspirates the refrigerant which has turned gaseous on account of the heat absorption and then compresses it yet again.

When the engine is running and the blower switched on, the interior can be supplied with cooled air through the various air outlets. Cooling intensity is dependent upon the preset in-car temperature and blower setting.

  Auxiliary fan, location/purpose/function Engine 111.977, 112.942, 112.970 with code 580 up to 31.08.01
Engine 112.942, 112.970 with code 580a as of 01.09.01
GF83.40-P-2162GH 
  Engine and AC electric suction fan with integrated control, location/purpose/function Engine 113.942 with code 580a up to 31.08.01
Engine 113.981, 113.965, 612.963, 628.963 with code 580a as of 01.09.01
GF83.40-P-2172GI 
  Condenser, location/purpose/function   GF83.40-P-2152GC 
  Evaporator location/purpose/design/function   GF83.40-P-2121GC 
  Fluid reservoir, location/purpose/function   GF83.40-P-2153GI 
  Expansion valve, location/purpose/design/ function   GF83.40-P-2123GC 
  Refrigerant pressure and temperature sensor, location/purpose/function   GF83.40-P-2171GI 
  Refrigerant compressor, location/purpose/ design/function   GF83.55-P-2100P 
  Control valve, location/purpose/function   GF83.55-P-2102P 
  Belt pulley, location/purpose/design/function   GF83.55-P-2103P 
  Pressure relief valve, location/purpose/function   GF83.55-P-2104P