Porsche P-80 2005, Manual

Page: 62 / 108

Page 4.4
Climate Control Systems Diagnosis & Repair
Cayenne Model System
Refrigeration Circuit, Cayenne (V6)
The following illustration shows the refrigeration circuit of
the Cayenne with manual air conditioning.
The following section/components are installed and
listed in order of the refrigeration circuit:
1 - Adjustable air conditioning compressor (front of engine)
2 - Condenser (sandwich design with engine radiator)
3 - Mounting (pipe) for the drier cartridge (replaceable cartridge;
integrated)
4 - Service connector (high pressure)
5 - Pressure sensor is on high-pressure side
6 - Expansion valve (supply flow)
7 - Expansion valve (return flow)
8 - Service connector (low pressure)
9 - Pressure damper (low pressure side just in front of
compressor, near left wheel arch)
Refrigeration Circuit, 2-Zone Climate Control
The cold air circulation in the Cayenne is set up so that the
compressor and the expansion valve are the classic sepa-
rations between upper and lower pressure sides.
The following sections/components are built in and shown
in the direction of the cold air circulation:
1 - Compressor (front side of the motor)
2 - Condenser (sandwich design with radiator)
3 - Receptacle (pipe) for the drying cartridge (replaceable
cartridges, integrated on the right outside of the capacitor)
4 - Service connection (high pressure)
5 - Pressure sensor is on the high pressure side
6 - Expansion valve (flow)
7 - Evaporator (evaporator cannot be seen in diagram)
8 - Expansion Valve (return)
9 - Service connection (low pressure)
10 - Pressure damper (low pressure side right in front of the
compressor near the left wheel housing)