2004 DACIA SOLENZA Repair Manual

62
AIR CONDITIONING
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Filter reservoir
Filter reservoir (1) is attached by means of a
support collar on the right longitudinal girder.
Its function in the AC unit operation is : -filtering the refrigeran t fluid;
-r etaining the humidity from the unit;
-f orming of a buffer stock of refrigerant
fluid.
The particles interception is necessary because
it might block the thermostatic expansion vale
operation or produce compressor mobile parts
wear or gripping. The filter reservoir is not to be repaired.
DISMOUNTIN G
Disconnect the battery.
Drain the AC unit.
Dism ount t he pi pi ng a nd pro t e c t wi t h
protection caps in order to avoid humidity
penetration. Dismount the filter reservoir off the support
collar and release it.
REMOU NT I NG
Perform the dismounting operations in the
reverse order. Fill the AC unit with refrigerant fluid HFC
134a (0,600 Kg) by means of the c harging
station.
Check for refrigerant fluid leaks.
When replacing the filter reservoir, fill in
the circuit with 15 ml of oil PA G S P 10 .
REMARK
The tightening required moment of
the pipes nuts at the filter reservoir is of
1,4 –2 daNm.
The required tightening moment of
the attachmen t screw of the filter
re servoir support is of 0,7 daNm.
1
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AIR CONDITIONING
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Unit piping
TIGHTENING MOMENTS(daNm)
Pipe attachment nut 3/4’’on condenser 1,8-2
Pipe attachment nut 5/8’’on condenser 1-1,4
P ipes attachment screw on compressor 1,2
Pipes attachment nut on evaporator 0,57
The AC unit piping is ensuring the refrigeran t
fluid circulation between the unit components.
When piping is replaced, check the existence
of the protective caps, the l ubrication of the
connections and gaskets with compressor oil.
The unit fillin g and draining valves are placed
on the c ompressor piping a nd they different
diameters, so that they can not be reversed.
COMPRESSOR – EVAPORATOR
LO W PRESSURE PIPE
DISMOUNTIN G
Disconnect the battery.
Drain the AC circ uit by means of the
charging unit.
Dismo unt :
-atta chme nt nu t ( 9) of t he pi pe s
tightening clamp on evaporator ( 8) (located in
DSAF); -attachment screw ( 6) of the pipes
tightening clamp on compressor ( 5);
- attachment screw (7) of pipes clamp.
Release the pipe ( 10) and mount protection
caps at its extremities, at evaporator and
compressor.
R EMOU NT I NG
Perform the dismounting operations in the
reverse order.
Replace the gaskets from pipe’s extremities.
Before m ounting, t he ga skets are to be
lubricated with oil PAG SP 10.
In case pipe ( 10) is replaced, add 10 ml of
oil PA G S P 10, and in case of its breaking,
100 ml.
COMPRESSOR – CONDENSER
HIGH PRESSURE PIPE
DISMOUNTIN G
Disconnect the battery.
Drain th e AC circu it by means of the
charging unit. Dismo unt :
- front grill;
-atta chme nt sc rew (6) of t he hi gh
pressure pipe (4) on compressor (5);
-pipe attachment nut on condenser ( 12);
-pipe att achment clamp ( 11) on
condenser.
7
1
10
9
13
3 4
12 6
5
11 8
2
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Unit piping
Release the pipe and mount protection caps
at its extremities, at compressor and condenser.
REMOU NT I NG
Perform the dismounting operations in the
reverse order. Replace the gaskets and lubricate them with
oil PA G S P 10.
When a pipe is replaced, add 10 ml of oil
P AG SP 10 and in case of its breaking, 100 ml.
AT T E N T I O N !
Aft e r m ount ing t he AC uni t pi pi ng,
check for refrigerant fluid leaks.
FILTER RESERVOIR –
EVAPORATOR HIGH PRESSURE
PIPE (DSAF)
DISMOUNTIN G
Disconnect the battery.
Drain the AC circuit.
Disconnect the pressure controller connector
(2). Dismou nt :
-attac hm e n t n u t ( 9) of th e p i pe s
tightening clamp on evaporator ( 8);
- attachment nut of the high pressure pipe
(1 ) on filter reservoir;
- attachment screw (7) of pipes clamp.
Release the pipe ( 1) and mount protection
caps at its extremities, at evaporator and
reservoir filter ( 13).
REMOU NT I NG
Perform the dismounting operations in the
reverse order.
Check the condition of the gasket and
lubricate them with oil PAG SP 10.
When re placing a pipe, add 10 ml of oil
P AG SP 10 and in case of its breaking, 100 ml.
The “ 0” rings from the pipe extremities are to
be replaced with new ones.
FILTER RESERVOIR – CONDENSER HIGH PRESSURE PIPE
DISMOUNTIN G
Disconnect the battery.
Drain the AC circuit.
Dismount the attachment nuts of the high-
pressure pipe ( 3) on filter re servoir and con-
denser. Release the pipe and mount protection caps
at pi pe’s e xtremities ( 3), at condenser a nd at
filter reservoir.
7
1
9
13
34 126
5
11 8
2
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REMOU NT I NG
Perform the dismounting operations in the reverse order.
The “ 0” rings from the pipe’s extremities are to be replaced with new ones. Before mounting,
these are to be lubricated with oil PA G S P 10.
When replacing a pi pe, add 10 ml of oil PA G S P 10 and in case of its breaking – 100 ml.
AT T E N T I ON !
After m ounting the AC unit piping, check for refrigerant fl uid leaks.
Unit piping
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A
C
B
Thermostatic expansion valve
Its function is to reduce the refrigerant fluid
pressure at the evaporator entrance, to a default
value. In this way, the fluid passing through the
evaporator may be suction by the compressor
in a complete gaseous condition.
DISMOUNTING
Drain the refrigerant circuit by means of the
charging station .
Dismou nt :
- attachment nut ( A) of the connection
pipes;
-two attachment screws ( B) of the
expansion valve ( C) on evaporator.
REMOU NT I NG
When remounting, replace the pipes sealing
gaskets. The require d tightening moment for B
screws is of 0,8 daNm.
The required tightening moment for A pipes
attachment nut is of 0,57 daNm
V acuum the unit then perform its filling with
refrigera nt fluid by means of the charging
station. REMARK:
Adj ust m e nt s of t he e xpansi on v al v e
spring are to be pe rform e d only by the
manufacturer.
The expansion valve is not to be
repaired and not adjustable.
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AIR CONDITIONING
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DISMOUNTING ( D.S.A.F. being already dis mounted)
Disconnect the connector ( 1).
Dismount the two attachment screws (2) of the climate control blower.
Swing over and extract carefully the blower from its seat ( 3).
Climate control blower
REMOU NT I NG
Perform the dismounting operations in the reverse order.
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DISMOUNTING ( D.S.A.F. being already dismounted)
Disconnect the c onnectors ( 1) and (4).
Dismount the resistance attachment screw (5).
Extract the resistance ( 6).
REMOU NT I NG
Perform the dismounting operations in the reverse order.
Blower control resistance
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DISMOUNTING (D.S.A.F. being already dis mounted)
The access to the recyclin g flap gear motor is it possible only after dismounting the air blowing
device (D.S.A.F.)
Disconnect the connector ( 4)
Dismount the gear motor attachment screw (7).
If necessary, supply the gear m otor with 12 V cc so t hat recycling flap i s enabling t he dis-
mounting of the gear motor attachment screw (8).
Dismount the gear motor attachment screw.
Extract from its place, carefully, the gear motor
R EMOU NT I NG
Perform the dismounting operations in the reverse order
The new gear motors are delivered in the recycling flap partially-open position are no special
cautions are needed.
Recycling flap motor fan
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