2004 Citroen XSARA PICASSO Workshop Manual

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AIRCON
23 ± 2 22,5 ± 2 20 ± 2 17 ± 2 15,5 ± 2 14,5 ± 2
3,8 ± 0,2 3,6 ± 0,2 3,5 ± 0,2 3,1 ± 0,2 3 ± 0,2 2,9 ± 0,2
24,5 ±221,5 ±2 18,5 ± 2 17 ± 2 15,5 ± 2
4 ±0,2 3,8 ± 0,2 3,5 ± 0,2 3,2 ± 0,2 3 ± 0,2
21,5 ± 2 22,5 ± 2 20 ± 2 18 ± 2 16,5 ± 2 15,6 ± 2
3,2 ±0,23,3 ±0,23 ±0,22,8 ± 0,2 2,6 ± 0,2
25,5 ±320,5 ±318 ± 3 20 ± 3 13,5 ± 3 11 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
25 ± 3 22,5 ± 3 20 ± 3 17 ± 3 15 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Checking pressures
Tools. 1
charging station. 2thermometers.
Once the preliminary conditions, vehicle equipment and checks havebeen fulfilled
(see table). After the air conditioning has been on for
three minutes, record the following parameters: The temperature of the air coming from the central vents
(see table).
The High Pressure. The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Ambient temperature in °C40 35 30 25 20 15
VehiclesEngines
XSARA
XSARA
PICASSOTU
EW
High pressure (Bars)
Low pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)DWVehicle using R134.a fluid
(Compressor with variable capacity)
High pressure (Bars)
XSARA XSARA PICASSO
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
TU
EW
DW

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AIRCONAIRCON
(1)High pressure valve.
(2)Low pressure valve.
(3)Pressostat.
(4)Filter.
Tightening torques (m.daN).
(a) : 0,6
(b) : 0,6
(c) : 0,6
(d) : 0,6
(e):0,6
(f) : 0,7
C5HP19UP
C2AIR CONDITIONING SYSTEM R 134.a

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AIRCON
AIR CONDITIONING SYSTEM R 134.a
(1)High pressure valve.
(2) Low pressure valve.
(3) Filter.
(4)Pressostat.
Tightening torques (m.daN).
(a) : 0,6
(b) : 0,6
(c) : 0,6
(d) : 0,6
(e):0,6
(f) : 0,6
C5HP17SP
C3 C3 PLURIEL

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AIRCONAIRCON
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP1A5D
Key.
T/P
= Average temperature (°C)at the air vents/
high pressure (Bars).
P= Low pressure (Bars).
Te= Exterior temperature (C°).
HP= Pressure at compressor outlet (Bars).
BP= Pressure at compressor inlet (Bars).
TA = Average temperature (°C)of air blown from the
central vents.
C3 C3 PLURIEL BVA KFV

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AIRCON
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP18GD
Key.
T/P
= Average temperature(°C ) at the air vents/
high pressure(Bars).
P = Low pressure(Bars).
TE = Exterior temperature(C°).
HP = Pressure at compressor outlet(Bars).
BP = Pressure at compressor inlet(Bars).
TA = Average temperature(°C) of air blown from
the central vents.
C3 C3 PLURIEL NFV

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ELECTRICAL
SYSTEM
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP1A8D
Key.
T/P
= Average temperature(°C ) at the air vents/
high pressure(Bars).
P
= Low pressure(Bars).
TE = Exterior temperature(C°).
HP = Pressure at compressor outlet (Bars).
BP = Pressure at compressor inlet(Bars).
TA = Average temperature(°C) of air blown from
the central vents.
C3 C3 PLURIEL BV MECANIQUE 8HX 8HW

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ELECTRICAL
SYSTEM
Plan of air conditioning system.
Two solutions:
1/ «MANULLI»
, with «NON EUROCLIM» compressor (Oring seals).
2/
«EATON», with «EUROCLIM»compressor (quadrilobe seals).
(1)High pressure valve.
(2)Low pressure valve.
(3)Pressostat.
(4)Dryer.
Tightening torques (m.daN).
(a): 0,8
(b):4 ± 0,4
(c) : 0,8
A
Right hand drive.
XSARA KFW NFU TU TT AIR CONDITIONING SYSTEM R 134.a
C5HP16RP

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Plan of air conditioning system.
Solution:
1/ «EATON»
, with «EUROCLIM»compressor and buffer capacity (quadrilobe
seals)
.
(1)High pressure valve.
(2)Low pressure valve.
(3)Buffer capacity.
Tightening torques (m.daN).
(a):0,8
(b):4 ±0,4
(c) : 0,8
A
Right hand drive.
XSARA RFNAIR CONDITIONING SYSTEM R 134.a
C5HP17WP
AIRCONAIRCON