CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
ALL TYPES
291
CHECKING PRESSURES
TOOLS : 1 Charging station and 2 Thermometers.Observing the
preliminary conditions, as well as vehicle equipment and checks
(see page 287) :After the air conditioning has been operating for
three minutes, record the following parameters :
- The temperature of the air coming out of the central vents See the table on
page 290).
- The High Pressure.
- The Low Pressure.Compare the values recorded with the table below, or
the graphs.
Exterior temperature in °C
40 35 30 25 20 15
Vehicles
XANTIA (1)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
XANTIA (2)
XM
SYNERGIE
24 ± 3 21 ± 3 18 ± 3 14 ± 3
4 ± 3
2.5 ± 3 4 ± 0.3
21 ± 3 16 ± 3 14 ± 3
1.9 ± 3 1.4 ± 0.3
24 ± 0;3 19 ± 3 17 ± 3 15 ± 3
4 ± 0.3 3 ± 0.3 2.5 ± 0.3 1.8 ± 0.3
16 ± 3
13 ± 3
2.1 ± 0.3 1.8 ± 0.3
(1) SANDEN Compressor (Petrol engines : all types) - (2) = HARRISON Compressor (Diesel engines : all types).
If the parameters recorded do not correspond to those in the above table, refer to the table (see page 290).
Vehicle using R134.a fluid (Compressor with variable capacity)
AIR
CONDITIONING
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