Iveco daily euro 4, Repair Manual

Page: 919 / 1132

FILLING THE SYSTEM WITH
REFRIGERANT
Before refilling, it is wise to be aware of some important rules:
-
know the quantity of refrigerant to use (it is normally
written on an adhesive plate affixed on the vehicle);
-
the filler cylinder is equipped with a minimum level check
that prevents introducing incondensable gas into the
system.
This is why the last approx. 600 g of refrigerant it contains
cannot be used;
-
therefore, before filling, check that the cylinder contains
a sufficient quantity for filling (maximum quantity that can
be used 3800 g);
- if the pressure inside the filler cylinder indicated on the
pressure gauge (2) is greater than as required, which can
be seen on the filler cylinder window approx. 10 bar max,
discharge the excess pressure through the valve (1) on
the pressure gauge assembly to bring it down to the right
level, reading the value on the pressure gauge.
2
1
50640
To transfer refrigerant from an external bottle to
the filler cylinder and vice versa, refer to the
equipment manual.
Considering that the amount of refrigerant depends
on its pressure, to know the actual weight it is
necessary to turn the outside of the filler cylinder so
the line of the diagram matches the level viewer. In
this way we can know the exact quantity of
refrigerant in the cylinder (starting weight).
When calculating the weight of the refrigerant, in
addition to the 600 g that cannot be used,
remember to increase the load by approximately
100 g (this is the weight of refrigerant contained in
the station-system connecting pipes). The right
quantity of refrigerant to introduce into the system
will therefore be given by: 600 g + 100 g + (quantity
referred to the system capacity).
Always check before filling that the indicator on the
”console” shows the refrigerant contains no
moisture, in which case the indicator will be bright
green. If this is not so, replace the filters in the station
as instructed in the equipment manual.
NOTE
Figure 21
CAB AIR-CONDITIONING
21
D
AILY
E
URO
4
Print 603.93.651 Base - March 2006
VEHICLE COMPRESSOR
R134 COULANT
QUANTITY PROVIDED
FOR IN SYSTEM
COULANT
QUANTITY CONTAINED
IN THE PIPINGS
(150 cm length)
THAT ARE USED FOR
RECHARGING
COULANT TOTAL
QUANTITY TO BE SET
ON CHARGING TOOL
OIL QUANTITY TO BE
ADDED INTO SYSTEM
AT EACH ND 8 TYPE
CHARGING
DAILY (8140 engine) :
WITH CAB, VAN, SPECIAL
ITEMS, 6+1
SC 08
OPT 6650
720 g
100 [g] for low pressure
pipe, 100 [g] for high
pressure pipe
1020 g 30 g
DAILY (8140 engine) :
WITH CAB, VAN, SPECIAL
ITEMS, 6+1
DENSO 10 PA 17
OPT 6652
720 g
100 [g] for low pressure
pipe, 100 [g] for high
pressure pipe
1020 g 40 g
DAILY (F1A engine) :
WITH CAB, VAN, SPECIAL
ITEMS, 6+1
DENSO 10 PA 17
OPT 6652
720 g
100 [g] for low pressure
pipe, 100 [g] for high
pressure pipe
1020 g 40 g
DAILY (F1A engine) :
COMBI
DENSO 10 PA 17
OPT 6652
1200 g
100 [g] for low pressure
pipe, 100 [g] for high
pressure pipe
1500 g 40 g
DAILY (F1C engine) :
WITH CAB, VAN, SPECIAL
ITEMS, 6+1
DENSO 10 PA 17
OPT 6652
440 g
100 [g] for low pressure
pipe, 100 [g] for high
pressure pipe
750 g 40 g