Volkswagen Polo Service & Repair Manual: A/C System Operation
The temperature in the passenger compartment depends on the
amount of heat radiated through the windows and conducted by the
metal parts of the body. In hot weather it is possible to
achieve a more comfortable temperature for the passengers by
pumping off some of the heat. |
As heat spreads into cooler areas, the passenger compartment
is equipped with a unit for generating low temperatures. In the
unit, refrigerant is constantly evaporated. The heat required
for this is extracted from the air flowing through the
evaporator. |
After absorbing heat, the refrigerant is pumped off through
the compressor. The action of the A/C compressor increases the
heat content and temperature of the refrigerant. Its temperature
is then substantially higher than that of the surrounding air. |
The warm refrigerant flows to the condenser. There, the
refrigerant dissipates its heat through the condenser to the
surrounding air due to the temperature difference between the
refrigerant and air. |
The refrigerant thus acts as a heat transfer medium. As it
is to be reused, the refrigerant is returned to the evaporator. |
For this reason all air conditioning systems are based on
the refrigerant circulation principle. There are however
differences in the combination of aggregates. |
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Being comfortable while driving leads to better
concentration and safe driving. Air conditioning makes drivers
and passengers more comfortable when temperatures or hu ...
General Safety Precautions
As per VBG 20, German industrial liability insurance
association.
Follow th ...
Other materials:
Commercial Names and Designations
Refrigerant R134a is currently available under the following
trade names:
H-FKW 134a
SUVA 134a
KLEA 134a
Note
Different trade names may be us ...
Silicone Remover, Long -LLS MAX 008
Definition:
Silicone Remover, Long -LLS MAX 008-
Edition 10/2008
Product Description
The Silicone Remover, Long -LLS MAX 008- is a cleaning agent
that is rich in active ingre ...
Preserving Wax (Spray Can)
Definition:
Preserving Wax -D 308 SP5 A1-
Edition 04/2009
Product Description
The Preserving Wax -D 308 SP5 A1- provides optimal corrosion
protection for areas in the body th ...
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