Dacia Solenza (engine E7J). Service manual — part 121
62
AIR CONDITIONING
62- 10
DISMOUNTING
Disconnect the battery.
Drain the air condiotioning unit to the station
by recovering the refrigerant fluid
Dismount it from screws (6) and release the
cold air-blowing device (2) from the climate con-
trol box (see D.S.A.F. dismounting-remounting)
Disconnect and release the two attachment
screws (3) of the air blower.
Dismount the resistance’s assembly (7)
Supply the gear motor in order to bring the
recycling control flap in vertical position.
Dismount the attachment screw (1) of the air
filter protection cap (9) and release the filter (8).
Dismount the attachment screws (4) of the
D.S.A.F. cases and release the evaporator (5).
REMOUNTING
Perform the dismounting operations in the
reverse order.
Vacuum then charge the air conditioning
circuit with refrigerant fluid HFc 134a by
means of the charging station.
Check the good operation of the air
conditioning system.
NOTÃ:
Garniturile autoadezive ale D.S.A.F.
vor fi înlocuite cu altele noi.
Evaporator
3
4
5
6
2
1
9
8
7
62
AIR CONDITIONING
62 - 11
Control panel
The dismounting – remounting operation has been described in chapter 61 “ Climate control”.
Connector (3)
Pin
Denomination
1
Free
2
Free
3
Free
4
Free
5
Free
6
Free
7
+ parking lights
8
Mass
9
Mass
10
Supply + after contact
11
Supply + after contact
12
Air conditioning control
13
Climate control blower speed signal
14
Control + air recycling
15
Control - air recycling
Connector (6)
Pin
Denomination
A1
Control + blower speed 4
A4
Supply + after contact
A5
Supply + after contact
B1
Control + blower speed 3
B4
Control + blower speed 2
B5
Control + blower speed 1
1
5
A
B
62
AIR CONDITIONING
62- 12
Compressor
FUNCTION
The compressor is suction the vapors com-
ing from evaporator at low temperature and
pressure, compress them and transmit the gas
at high temperature and pressure towards con-
denser.
The refrigerant fluid in entering in condenser
in vapors condition, at high temperature and
pressure, where, by condensing, is transmitting
in the external environment the abstracted heat.
At condenser exit, the refrigerant fluid is in
liquid condition, at high pressure and tempera-
ture.
DISMOUNTING
Drain the refrigerant circuit to a charging
station.
Disconnect the battery.
Disconnect the supply wiring connector of
the compressor clutch.
Dismount the screw of attachment clamp
of the refrigerant pipes on compressor.
Cover the open piping with protectors.
Dismount the compressor-driving belt.
Dismount the four compressor attachment
screws.
Extract the compressor.
REMOUNTING
In case compressor is replaced, this one is
delivered filled with oil.
Position the compressor with the filling cap
upwards.
Mount the compressor attachment screws.
Tighten the compressor attachment screws
to the required moment of 2,1 daNm.
Remount the two refrigerant pipes and
tighten the attachment clamp screw to the re-
quired moment of 1,2 daNm.
Mount the compressor-driving belt and ten-
sion it by acting upon the screw (1) according
to the method described in chapter 07 “ Ac-
cessories belts tensioning”.
The tensioning values are :
150 - 155 Hz - compressor belt;
214 – 230 Hz – DA pump/compressor belt.
Connect the supply wire connector of the
compressor clutch.
Vacuum and fill the circuit with refrigerant
fluid HFC 134a, by means of the charging sta-
tion (see chapter 62 “Draining – Filling unit
refrigerant circuit”).
REMARK :
Before mounting check the condition
of the gaskets and lubricate them with
compressor oil PAG SP 10.
62
AIR CONDITIONING
62 - 13
Condenser
SPECIAL TOOLS
MOT 453
Hoses clamp
MOT 1202-01
Elastic clips pliers
The condenser is placed on the cooling
radiator, ensuring the exhaust of the refrigerant
heat accumulated at compression.
DISMOUNTING
Disconnect the battery.
Drain the AC unit and recover the oil and
the refrigerant fluid at the charging station.
Dismount the front grill.
Dismount the air filter inlet pipe.
Dismount the engine fan off the radiator.
Disconnect the pipes from the condenser and
immediately close the disconnected pipes ends
and the condenser connections with protection
caps in order to avoid humidity and impurities
penetration in circuit.
Clamp the hoses from the radiator by means
of the MOT 453 device.
Dismount the hoses from the radiator by
means of the elastic clips pliers MOT 1202-01,
recovering the cooling fluid.
Dismount the radiator side attachment
supports on the radiator upper cross beam and
release the radiator together with the condenser.
Release the condenser from the four
attachment screws on the radiator.
REMOUNTING
Perform the dismounting operations in the
reverse order.
Tighten to the required moment the pipes
nuts.
- thread 3/4 “ 1,8 – 2,2 daNm
- thread 5/8 “ 1,0 – 1,4 daNm
Fill the AC unit with refrigerant fluid HFC
134a (0,600 Kg) by means of the charging unit.
Check for refrigerant fluid leaks.
Fill and purge the cooling circuit.
Check the good operation of the AC unit.
REMARK :
When mounting, line up the marks of
the hoses and mating parts.
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