DACIA SOLENZA 2004 Repair Manual

61
HEATING
61 - 9
Control cables
DISMOUNTING
Dismounting of the control cables ( 1) may be performed without dashboard dismounting .
Dismo unt :
- ashtray;
- switches of the front doors electric windows;
- control panel as well as cables ( 1) attached to this one by screws.
Dismount the maintaining clips (2) in the cockpit lower part.
Release the cables.
1 2
R
EMOU NT I NG
Perform the dismounting operations in the reverse order.
Check the good operation of the controls.
Remount the control panel on the dashboard and central console.
continuity and resistance against vehicle’s mass,
front wiring between:
- cockpit fuse F 14 exit pin 7 climate control panel
- pin 9 climate control panel vehicle mass.
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HEATING
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Motor fan control resistance
DISMOUNTING (Climate control unit being already di smounted)
Dismount the resistance attachment screw (1).
Extract the resistance (2).
Disconnect the connector ( 3).
REMOU NT I NG
Perform the dismounting operations in the reverse order.
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HEATING
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CLI
MATE CONTROL BLOWER NOT WORKING
Replace fuse F 17. Check the fuse F 17 from cockpit. Is it ok?
Re pl a c e ve nt i l a -
tion-climate control
air distributor Check the continuity of the speeds switch of the climate control
panel for:
S
tep 1 – between pins A4 or A5 pin B5;
S tep 2 – between pins A4 or A5 pin B4;
S tep 3 – between pins A4 or A5 pin B1;
S tep 4 – between pins A4 or A5 pins A1 or A2.
Are they corresponding ?
Replace the front wiring. Is there 12 V between vehicle mass and pins A4 or A5 of the
connector (6) of the climate control panel ?
Check the continuity and resistance against vehicle’s mass
between:
- pin B5 climate panel pin 3 blower connector
- pin B4 climate panel pin 4 blower connector
- pin B1 climate panel pin 5 blower connector
- pin A1 climate panel pin 12 blower connector
- pin A2 climate panel pin 13 blower connector
- pin 15 blower connector vehicle mass
- pin 14 blower connector vehicle mass
Are they corresponding ?
Replace the cold air
blowing device.
No
No
No
No Yes
Dia gnose
Yes
Yes
Yes
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HEATING
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CLI
MATE CONTROL PANEL LIGHTING NOT WORKING
Re p lace fuse F14.
Replace front wirin g. Check in cockpit fuse 14. Is it OK ?
Check the continuity and resistance against vehicle between:
- cockpit fuse F 14 exit pin 7 climate control panel
- pin 9 climate control panel vehicle mass.
Are they corresponding ?
Replace the ventilation-climate
control air distributor.
No
No Ye s
Ye s
Dia gnose
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62
AIR CONDITIONING
62 - 1
General
The purpose of the air conditioning unit is to produce a decrease of the tempera ture in t he
passengers compartment a nd to obt ain a l ower value tempera ture c ompare d to the e xterna l
environment one, reducing in the same time the air moisture.
MAINTENANCE
For a vehicle equipped with air conditioning, during the year it is recommended:-the checking of the refrigerant fluid filling;
- the cleaning and the air-blowing of the condenser and the cooling radiator fins;
- the checking of the condensation removal pipe on order not to be clogged.
For important leakage repair, for any components replacement (compressor, condenser, etc)
and if moisture was noticed in the air conditioning circuit, replace the dryer filter tank and drain
the unit; the same is valid also in case the conditioning circuit remains open without protection
covers more than 10 minutes.
IMPORTANT !
During winter, it is recommended the frequent start of the system, in order to prolong
the lifetime of t he compressor and of the whole system.
T he vehicle equipped with an air c onditioning system shall be not exposed for more
than 20 minutes i n painting c abin where there are temperatures higher than 80 °C.
It is obligatory the use of t he refrigerating agent and compressor oil type prescribed
by the manufacturer.
It is absolutely forbidden to perform welding works on the elements of the ai r condition
circ uits.
The fi lling of the air c onditioning system c an be pe rformed only by means of c harging
units and observing the instructions of the manufacturer. For mechanical or body
operations it is recommended piping protection in order to avoid t heir disconnection
by accident.
Avoid the drip of the oil compressor on the painted vehicle carriage body.
For component replacement implying t he circuit draining, it is absolutely necessary
the use of new parts and of a special oil for compressor.
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AIR CONDITIONING
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AIR COND
ITIONING UNIT
GENERAL METHOD OF O NE ELEMENT REPLACEMENT OF THE AIR CONDITONING UNIT
DISMOUNTIN G
Make the unit functioning for at least 10 minutes (if the unit permits).
Drain the circuit in the charging equipment.
Measure the quantity of recovered refrigerated fluid.
Release the access to the component that is needed to be changed.
Disconnect the connections.
In order to avoid the moisture infiltration, protect with protection covers.
Dismount the component.
REMOU NT I NG
Apply special compressor oil on the new e lements thread and on the gaskets.
AT TENTION !
T he new components must be obligatory provided with protection covers.
Remove the protection covers, connect t he new component on the free connection,
and tighten it by hand.
Place the component correctly.
Tighten it to the required moment.
Refi ll with refrigerant fluid and oil recommended by the manufacturer.
The filling up with oil for different repairs is to be performed as follows: add in the charging
equipment container, the recovered oil quantity, plus an oil quantity, as it follows:
- sudden damaged of one of the unit’s element or leakage...............................100 ml
- condenser re placement ............................................................................... 30 ml
- evaporator replacement............................................................................... 30 ml
- dryer filter replacement................................................................................ 15 ml
- pipe re placement......................................................................................... 10 ml
For compressor dismounting/remounting without replacement add 120 ml.
If there are signs of moisture in the air conditioning circuit, replace the dryer filter tank.
Compressor oil : PAG SP 10 135 cmc
Refrigerant fluid : HFC 134a 0.6 Kg
General
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AIR CONDITIONING
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Draining – filling the refrigerant circuit
DRA I NING
Connect the charging equipment piping to the filling-draining valves.
Perform the vacuuming of the air condition unit with the recovering of the oil and the refriger-
ant fluid. Close the hoses valves.
Disconnect the charging equipment piping and stop the equipment.
FILLIN G
Attach the draining – filling hoses of the equipment to the air conditioning unit valves.
Put compressor specific oil t ype SP 10 in the charging equipment vessel.
Set the quantity of the refrigerant fluid that must be charged (0,6 Kg).
Observe the filling instructions prescribed by the equipment producer.
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AIR CONDITIONING
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Air conditioning unit operating diagram
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AIR CONDITIONING
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Operating principle
The climate control assembly is enabling outside air penetration in the vehicle climate control
unit.
Climate controls:
A – air temperature adjustment
B – air distribution in the cockpit
C – air quantity adjustment in cockpit
Air temperature adjustment
Control knob (A) is enabling the obt aining of t he de sired tempera ture in t he cockpit. By
turning to the right the knob (A), the air temperature is increasing.
Air distribution in the cockpit
Ai r distribution in the cockpit is obtained by means of rotating t he knob (B) in the desired
position.
Position
Airflow is directed towards the dashboard air vents.
Position
Airflow is directed towards all dashboard air vents and passengers l egs.
Position
Airflow is directed towards passengers legs.
Position
Airflow is directed between all a ir vents, front side windows defrosting vents, windscreen
defrosting vent and passenger legs.
Position
Entire airflow is directed towards windscreen and side windows defrosting air vents. For a
more substantial efficiency, close the dashboard air vents.
A B
D EC
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AIR CONDITIONING
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Operating principle
Air quantity adjustment in c ockpit
The flow of circulating air in cockpit is adjusted by rotating the (C) knob in the correspondin g
positions for the four speed steps of the blower. The more speed step is bigger the more airflow
is bigger.
For a be tter effi ciency of the windscreen defrosting or de fogging, t he (C ) knob m ust 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 a ir temperature i n cockpit when the vehicle i s 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 operatio n,
for a better efficiency, all windows must be closed.
R ecycled air
When pushing the ( E) button, the climate maintenance unit is working with cockpit recycled
air, without outside air penetration.
Air recycli ng is enabling:
- isolation from outside atmosphere;
-f aster reaching the desired temperature in cockpit.
Prolonged use of this function may lead to glasses fogging. Normal operation returning, with
outside air, is t hen imposed, by pushing the (E) button stopping the cockpit air recycling.
A B
D EC
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