Checking Pressures - CITROEN XANTIA User Manual

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
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 :
Exterior temperature in °C
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
(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).

CHECKING PRESSURES

Vehicle using R134.a fluid (Compressor with variable capacity)
40
Vehicles
24 ± 3
XANTIA (1)
4 ± 3
21 ± 3
XANTIA (2)
1.9 ± 3
24 ± 0;3
XM
4 ± 0.3 3 ± 0.3
SYNERGIE
- 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.
35 30 25
21 ± 3
2.5 ± 3
16 ± 3
19 ± 3
2.5 ± 0.3
16 ± 3
291
ALL TYPES
20 15
18 ± 3 14 ± 3
4 ± 0.3
14 ± 3
1.4 ± 0.3
17 ± 3 15 ± 3
1.8 ± 0.3
13 ± 3
2.1 ± 0.3 1.8 ± 0.3