air conditioning DACIA SUPERNOVA 2004 Owner's Manual

Mechanisms and accesoires5
Climatisation6
Garnishing and tack room7
Electr ic equipment8
57 LOWER INTERNAL ACCESSORIESDashboard..................................................... 57-1
Dashboard upper part ................................... 57-3
Central console............................................. 56-4
Documents compartment.............................. 57-5
Ste ering whee l axle hal f-cases...................... 57-6
Inside rear view mirror.................................. 57-7
S un visors...................................................... 57-8
Turning handles............................................ 57-9
Handbrake case............................................. 57-10
59 SAFETY ELEMENTS Front safety belts........................................... 59-1
Re ar safety belts............................................ 59-2
61 HEATING Climat e control asse mbly.............................. 61-1
Housing manifold.......................................... 61-2
Heating radiator............................................. 61-3
C limat e control blower.................................. 61-4
Diagnosis....................................................... 61-5
62 AIR CONDITIONING Generalities.................................................. 62-1
AC unit operating diagram........................... 62-4
Evaporator.................................................... 62-5
Comp ressor................................................... 62-7
Condenser..................................................... 62-8
Pr essure controller........................................ 62-9
Dryer filter tank............................................ 62-10
Unit piping.................................................... 62-11
C limat e control unit...................................... 62-12
Diagnosis....................................................... 62-13
65 SEALING OPENING ELEMENTS Carriage body se aling................................... 65-1
66 SEALING WINDOWS AND SCREENS Glasses sealing............................................. 66-1
Insi de wipers ............................................... 66-2
Outside wipers.............................................. 66-3
71 INTERNAL BODY TRIM Carriage body coverings.............................. 71-1
Fr ont door threshold covering...................... 71-2
Upper front pillar covering........................... 71-3
Re ar door threshold covering....................... 71-4
Mi ddle pillar covering.................................. 71-5
Re ar passa ge covering.................................. 71-6
Re ar wheel passage covering........................ 71-7
Mi ddle pillar lower covering........................ 71-8
Re ar side panel covering............................... 71-9
R oof gasket .................................................... 71-10 Carpets
......................................................... 71-11
Cowl panel noise absorbent ......................... 71-12
72 SIDE OPENING ELEMENTS TRIM Front door panel........................................... 72-1
Re ar door panel............................................ 72-2
74 BACK SEAT TABLES AND PARCEL SHELVES Upper back panel replacement...................... 74-1
75 FRONT SEATS FRAMES AND RUNNERS Front seats.................................................... 75-1
Fr ont seat slides guides................................ 75-2
Fr ont seat armature...................................... 75-3
76 REAR SEATS FRAMES AND RUNNERS Rear bench................................................... 76-1
B ench seats .................................................. 76-2
77 FRONT SEAT TRIM Seats upholstery dismounting...................... 77-1
Back rest upholstery dismounting................ 77-2
78 REAR SEAT TRIM Seats upholstery dismounting...................... 78-1
Back rest upholstery dismounting................ 78-2
80 BATTERY - FRONT HEADLIGHTS Battery... ...................................................... 80-1
Head lamp asse mb ly..................................... 80-4
F og lamps.................................................... 80-5
Bulbs r eplacement....................................... 80-6
Headlamps adjustment................................. 80-7
81 REAR AND INTERIOR LIGHTING Bulbs r eplacement........................................ 81-1
Bulbs ............................................................ 81-2
Diagnostic.................................................... 81-3
Cockpit fuse box.......................................... 81-6
82A HORN - ENGINE IMMOBILISER Gene ralities.................................................. 82A-1
Key head repla ceme nt.................................. 82A-6
E.C.U. decoder repla ceme nt........................ 82A-7
Antistarting bushing replaceme nt................ 82A-8
RF remote control for blocking/unlocking
t he doors...................................................... 82A-9
Electric control unit injection repla cement... 82A-10
Pr ocedures.................................................... 82A-11
Diagnostic..................................................... 82A-17
vnx.su

HEATING
61
61 - 5
CLI
MATE CONTROL BLOWER DOES NOT WORKING
Check fuse F 01.
F01 good. Check F09.
F09 good. Check blower supply.
F01 blown. Replace the fuse.
The blower is not supplied.
Check R2 relay. The blower is supplied.
Check the air conditioning switch.
Relay R2 is damaged.
Replace the relay.The relay is not da
maged.
Broken or disconnected
relay switch wiring. Good switch.
Ma
ss wire
disconnected or brok en.Damaged switch.
Replace the switch.
DIAGNOSIS
vnx.su

AIR CONDITIONING
62
62 - 1
GENERALITIES
GENERALITIES
The purpose of the a ir conditioning unit i s to produce a decrease of t he temperature in the
passengers compartment a nd to obtain a l ower value t emperature compared to the external
environment one, reducing in the same time the air moisture.
MAINTENANCE
For a vehicle equipped with air conditioning, it is recommended a frequent checking of the
refrigerating agent level. 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 t he air conditioning circuit, the dryer filter tank is to be replaced
and the unit draining is to be performed. The same is valid also in case the conditioning circuit
remains open without protection covers more than 10 minutes.
IMP ORTANT
Duri ng winter, it is recommended the frequent start of the system, in order to pro-
long the lifetime of the compressor and of the whole system.
The vehicle equipped with an air conditioning 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 the refrigerating agent and compressor oil type prescribed
by the manufacturer. It is absolutely forbidden to perform welding on the elements of the air condition
circ uits. The filling of the air conditioning system can be pe rformed only by m eans of charging
units and observing the instructions of the manufacturer. For mechanical or body
operations it is recommended pi ping protection in order to avoid their disconnection
by accident. Avoid the drip of the oil compressor on the painted vehicle body.
For component replacement implying the circuit draining, it is absolutely necessary
the use of new parts and of a special oil for compressor.
vnx.su

AIR CONDITIONING
62
62 - 2
AIR COND
ITIONING UNIT
DISMOUNTING
Make the unit functioning for at least 10 minutes (if the unit permits).
Drain the circuit at the filling 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.
REMOUNTING
P ut special c ompressor oil on the new elements thread and on the gaskets.
AT TENT ION
The new components must be obligatory provided with protection c overs.
Remove t he protection covers, connect the new component on t he free connection,
and tighten it by hand.
Place the component correctly.
Tighten it at couple.
Refill with refrigerant fluid and oil.
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 100ml
- condenser replacement 30 ml
- evaporator replacement 30 ml
- dryer filter replacement 15 ml
- pipe replacement 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.
62
GENERALITIES
!
vnx.su

AIR CONDITIONING
62
62 - 3
DRAINING /FILLING THE REFRIGERANT CIRCUIT
DRAINING
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.
FILLING
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 (0,590kg).
Observe the filling instructions prescribed by the equipment producer.
62GENERALITIES
vnx.su

AIR CONDITIONING
62
62 - 4
AC UN
IT OPERATING DIAGRAM
vnx.su

AIR CONDITIONING
62
62 - 5
Basically, the air conditioning unit is formed of a closed circuit, composed by the following main
elem ents:
- ev aporator
- compre ssor
- c ondenser
- thermo static expansion valve
- conn ection pipes.
The evaporator is the component that ex t racts the heat from the passengers compartment and
is generally placed in the passengers compartment. In order to cool the passengers compartment
the hot air must be absorbed, the heat extracted and the “cooled” air redistributed. The hot air is
pa ssing through the evaporator to who is giving part of the temperature reducing so, its own
temperature. The cooled air is so conveyed in the passengers compartment, progressively reducing
the temperature.
In the same time, the refrigerant fluid which goes into the evaporator, is absorbing the heat, from
ai r pa ssing through the evaporator and at the same temperature, is transforming it from liquid into
va pors. At the evaporator exit, the refrigerant fluid is in vapor condition.
The evaporator is placed in the climate control unit and is protected by cases.
EVAPORATOR
EVAPORATOR CASES ASSEMBLY REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the refrigerant circuit.
Dismount the sealing gaskets on the climate box outliner.
Dismount the thermostatic expansion valve.
Dismount the climate case locking plate.
Di sconnect the pipes evaporator – compressor and evaporator – tank filter.
Dismount the evaporator cases attachment nuts, on the right side.
Release the evaporator cases.
Replace the assembly .
vnx.su

AIR CONDITIONING
62
62 - 6
REMOUNTING
Perform the dismounting
operations in the reverse order.
Fill the refrigerant circuit and check the good operation of the climate control system.
NOTE
Ensure that evaporator finned plates are not deformed and they are not excessive
dirty.
The tightening nuts for the climate and conditioning assembly, the connections for piping,
condenser and filter tank, must have the following tightening moments:
- thread 3/4” – 16 pitch/l” – at t he moment 18-20 Nm;
- thread 5/8” - 18 pitch/l” – at the m oment 14-20 Nm.
The tightening moment of the compressor flange attachment screw -12+/-1,2 Nm.
The tightening moment of the thermostatic probe attachment screw -5,7+/-0,5 Nm.
The tightening moment of the pressure capture - 20,7+/-2 Nm.
NOTE
After each operation that implies t he disconnection of t he battery, at its reconnection,
introduce the radio code that is written on the vehicle-selling invoice. EVAPORATOR
vnx.su

AIR CONDITIONING
62
62 - 7
The compressor is absorbing the vapors coming from the evaporator at low pressure and
temperature, is compressing them and convey the gas at high temperature and pressure. The refrigerant fluid in high pressure and temperature vapor condition is entering in the second
he at exchanger, which by condensation is transmitting the heat to the external environmental.
At the exit from the condenser, the refrigerant fl uid is in liquid condition, at a high pressure and temperature.
Type of compressor: SD 7Y15
Compressor oil : PAG SP 10 or SP20, volume –135 cmc.
Refrigerant: HFC 134 a, quantity of refrigerant : 0.590 kg
C OMPRESSOR REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the refrigerant circuit.
Disconnect the compressor’s connection.
Disconnect the pipes from the compressor.
Dismount the belt tensioning screw and release the belt.
Dismount the compressor attachment screws.
Dismount the compressor.
Replace the compressor.
REMOUNTING
Perform in the reverse order the dismounting operations.
T ension the belt and tighten at the required moment the tightening attachment screw.
Fill the refrigerant circuit and check the good operation of the climate control system.
COMPRESSOR
vnx.su

AIR CONDITIONING
62
62 - 8
THE CONDENSER
The condenser is placed on the cooling radiator, in the front part of the vehicle and is ensuring
the exhaust of the refrigerant heat accumulated at compression.
In order to grant the optimum condenser operation, frequently check if its outside surfaces are
always clean and the air penetration is not stopped. Also, check the condenser pipes in order not
to show deformations. CONDENSER
CO
NDENSOR REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the cooling circuit.
Dismount the pipes connected to the condenser.
Dismount the radiator-condenser assembly.
Separate t he cooling radiator from the condenser.
ATTENT ION:
A void the possible deformation of t he ducts and fi nned plates.
Replace the condenser.
REMOUNTING
Perform the dismounting operations in the reverse order.
vnx.su