Dacia Pick-Up 1304/1305/1307. Manual - part 119

AIR  CONDITIONING

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For important leakage removal, for any components replacement (compressor,

condenser, etc )  and if moisture was noticed in the air  conditioning circuit, the dryer  filter tank is
to be replaced and the unit draining is to be done. The same is valid also when the conditioning
circuit still open without protection covers more than 10 minutes.

For component replacement implying the circuit draining, it is absolutely necessary the use of

new parts and of a special oil for compressor.

ATTENTION !

The new components must be obligatory provided with protection covers. In order to

avoid the moisture penetration, protect with protection covers the parts dismounted
from the unit.

The vehicle equipped with an air conditioning system will be not exposed for more

than 20 minutes in painting cabin where there are temperatures higher than 80 grd C.

It is absolutely forbidden to perform welding on the elements of the air condition

circuits.

It is essential using the type of the refrigerating agent and of the compressor oil

prescribed by the producer.

The filling of the conditioning system can be performed only in authorized service

stations, observing the producer’s instructions.

For mechanical or body operations it is recommended piping protection in order to

avoid their disconnection by accident.

Avoid the drip of the oil compressor on the painted vehicle body.
Avoid the contact between  the refrigerant liquid and the body skin because this can

produce a refrigerant effect ( temp. of  – 26 dgr C).

The filling up with oil for different repairs is to be performed by adding in the

charging  equipment container, the recovered oil quantity, plus  an oil quantity, as  per

following:

- Condenser replacement ......................................30 g
- Evaporator replacement......................................30 g
- Dryer filter replacement......................................10 g

MAINTENANCE

AIR  CONDITIONING

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In order to detect the refrigerant liquid leakage, the detector INFICON type HDL 300 (or

similar) may be used, calibrated to detect leakage of aprox. 9gr./an.

Start the engine and switch on the air conditioning unit. Check through the sight glass of the

dryer filter tank if there are any air bubbles; if through the sight glass air bubbles can not be seen,
the unit is in good operation, but if air bubbles are occurring and they remain during operation,
this shows the lack of refrigerant fluid.

If there are not air bubbles and the air conditioning system is not operating, the refrigerant

fluid must be checked.

The lack of refrigerant fluid can be confirmed by measuring the circuit pressure, at a filling

station.

IMPORTANT :

When starting each time the compressor, air bubbles appearance through the sight

glass, for few seconds, is normal.

DETECTION OF  REFRIGERANT FLUID LEAKAGE

AIR  CONDITIONING

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Condenser has the purpose to achieve the second heat exchange, where the refrigerant fluid

by condensation, is transmitting outside the abstracted heat. When coming out from the con-
denser, the refrigerant fluid is liquid, at high pressure.

The condenser is made of aluminum, Harrison type, with parallel flows.
It is mounted in front of the vehicle’s radiator in the front part of the vehicle and is ensuring the

abstraction of  heat of  the refrigerant fluid.

In order to grant the optimum condenser operation, its outside surfaces must be always clean

and air penetration not to be stopped. Also, the condenser pipes must not show deformations.

    

D

ISMO UNTING

Disconnect the battery.
Drain the cooling circuit.
Dismount the radiator.
Drain the refrigerant circuit.
Dismount the pipes (1) and (2) connected to the condenser.
Disconnect the electric connector of the cooling GMV.
Dismount the condenser attachment screw (3) on the upper crossbar.
Detach the condenser.
Separate the GMV from the condenser.

ATTENTION : Avoid the possible deformation of the ducts and finned plates.

R

EMOUNTING

Perform the dismounting operations in  the reverse order.
Tighten at the required moment (1,6 daNm ) the refrigerant fluid pipes attached at the con-

denser.

Tighten at the required moment   (1,1 daNm) the condenser attachment screw on the upper

crossbar.

CONDENSER

AIR  CONDITIONING

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The dryer filter tank is mounted by means of a support, on the front wing lining and it has a

triple purpose in the air conditioning system:

- filtering the refrigerant fluid from the system;
- absorbing the moisture from the system;
- it is a buffer storage tank of refrigerant fluid.

FILTER TANK REPLACEMENT

D

ISMO UNTING

Disconnect the battery.
Drain the refrigerant circuit.
Dismount the refrigerant fluid pipes (1) and (2).
Disconnect the electric connector of the pressure controller.
Dismounting the pressure controller (3).
Loosen the attachment ring of the tank filter (4).
Replace the receiver tank filter.

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EMOUNTING

Perform the dismounting operations in  the reverse order.
Tighten at the required moment (0,4 daNm) the tank filter attachment nut.
Tighten at the required moment (1,6 daNm) the refrigerant fluid pipes connections.
Fill the refrigerant circuit and check the good operation of the unit.

ATTENTION ! Do not mount dryer filter tanks which do not have protection covers.

DRYER FILTER TANK