Dacia Solenza (engine E7J). Service manual — part 120
62
AIR CONDITIONING
62- 6
Operating principle
Air quantity adjustment in cockpit
The flow of circulating air in cockpit is adjusted by rotating the (C) knob in the corresponding
positions for the four speed steps of the blower. The more speed step is bigger the more airflow
is bigger.
For a better efficiency of the windscreen defrosting or defogging, the (C) knob must be
placed on the last position.
In order to complete closing of the cold air penetration, rotate the knob on “0” position.
Air conditioning AC
When pushing the (D) button, the starting / stopping of the air conditioning is ensured. If (D)
button is not pushed, the air conditioning is not working, ventilation being identical to the one of
a vehicle without air conditioning.
The use of air conditioning is enabling:
- lowering the air temperature in cockpit when the vehicle is driven in sunny places or
when the vehicle is stopped in the sunshine;
- reducing the humidity in cockpit (event facilitated by defogging).
Air conditioning can not be used at low outside temperatures. During air conditioning operation,
for a better efficiency, all windows must be closed.
Recycled air
When pushing the (E) button, the climate maintenance unit is working with cockpit recycled
air, without outside air penetration.
Air recycling is enabling:
- isolation from outside atmosphere;
- faster reaching the desired temperature in cockpit.
Prolonged use of this function may lead to glasses fogging. Normal operation returning, with
outside air, is then imposed, by pushing the (E) button stopping the cockpit air recycling.
A
B
D
E
C
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AIR CONDITIONING
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Particles filter
DISMOUNTING
Dismount the protector of the climate con-
trol box.
Remove from clips the wiring towards
blower casing from the D.S.A.F.
Dismount then the particles filter protec-
tion cap from the attachment screw by slid-
ing it towards front of the vehicle.
Extract the particles filter, by easy folding
it.
REMOUNTING
Remount in its place the particles filter per-
forming the same dismounting operations.
REMARK :
Pay attention at the mounting direction
of the filter the two arrows (A) must be
lined up.
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AIR CONDITIONING
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Cold air blowing device (DSAF)
TIGHTENING MOMENTS (daNm)
Attachments screws of the expansion vale on the evaporator 0,6
Pipes attachment nut on evaporator
0,57
Tightening screw of the pipe attachment clamp on compressor 1,2
Pipes attachment nut on filter reservoir
1,4 – 2
Pipe attachment nut on condenser ∫ “
1,8-2,2
Pipe attachment nut on condenser 5/8 “
1 – 1,4
Pressure controller
0,9 ± 0,1
DSAF is the heat-extracting component
from cockpit and is mounted in the climate
maintenance box.
In order to cool the cockpit, the warm air
must be absorbed and redistributed the
“cooled“ air. The warm air is going over the
evaporator to, which is transmitting part of the
temperature, this one being gradually reduced.
In the same time, the refrigerant fluid which
is passing through the evaporator piping is
absorbing the heat from the air going over the
evaporator and at the same pressure, is
transformed from fluid to vapors. When coming
out from evaporator, the refrigerant fluid is in
vapor condition.
DISMOUNTING
Drain the AC unit.
Disconnect the battery.
Dismount:
- climate control protector;
- climate control box gasket;
- expansion vessel;
- engine air filter
Detach the front wiring from attachment clips
on the climate maintenance box closing plate.
Dismount the climate maintenance box
closing plate.
Dismount the nut (1) of the pipes attachment
clamp (2) on thermostatic expansion valves (3).
Mount protectors at the dismounted pipes.
Dismount the attachment screws (6) of the
thermostatic expansion valve.
Release the thermostatic expansion valve
and mount protectors.
Extract the sealing gasket (7).
Mount protectors at the evaporator’s pipes (8).
2
3
1
4
9
10
7
5
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AIR CONDITIONING
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Cold air blowing device (DSAF)
Disconnect the climate maintenance blower
connector (11) (pull the red part towards arrow
A).
Dismount the attachment screws of the
steering wheel half-case and release from clips
detaching.
Dismount the upper part dashboard and
release it from clips.
Dismount the radio-cassettes player.
Disconnect the central locking switch
connector (if the vehicle is provided with central
locking).
Dismount the right air vent.
Dismount the DSAF attachment screws on
cowl panel and attachment screws on climate
maintenance box and release it.
Dismount the attachment screws (9) of the
connection pipe (10) on the distributor of RACV
AC-ventilation air and release it.
REMOUNTING
Perform the dismounting operations in the
reverse order, taking into consideration that filter
reservoir is to be mounted the last.
Fill the air conditioning unit with refrigerant
fluid HFC 134a (0,600 Kg).
8
6
11
Connector
Pin
Denomination
1
Control + air recycling
2
Control + air recycling
3
Blower control speed 1
4
Blower control speed 2
5
Blower control speed 3
9
Climate control blower speed signal
10
Supply + after contact
11
Supply + after contact
12
Blower control speed 4
14
Mass
15
Mass
9
15
5
1
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