EN
Operation
VAS 6380B / VAS 6381B
108
8.9
Flushing the air conditioning system
I
1. First fit the connections of the AirConServiceCenter to the vehicle air
conditioning system and open them.
2. In the basic menu, use the cursor keys
or
to select
“Free selection”
:
3. Press
ENTER
to confirm.
4. If necessary, use the keypad (
7
) to enter the data and press
ENTER
to confirm. If no data is to be entered, press
ENTER
to switch to the
next program step.
5. Select
“Rec/Recycling phase ?”
(the setting flashes) and press
ENTER
to confirm.
6. For the
“Pressure increase test time”
, enter
1
minute and press
ENTER
to confirm.
7. Deselect
“Vacuum phase ?”
using
No
(the setting flashes) and
press
ENTER
to confirm.
8. Deselect
“Filling phase?”
using
No
(the setting flashes) and press
ENTER
to confirm.
9. Select
“Process start ?”
by pressing
ENTER
.
10. After the extraction process is complete, disconnect the station from
the vehicle.
11. Disconnect the system components which cannot be flushed from
the refrigerant circuit. These components include:
– Compressor
– Line filter
– Fixed choke
– Collection containers
– Filter drying units
– Expansion valve
NOTE
The
“Flushing”
menu is used to flush the vehicle air conditioning
system with fresh refrigerant. Flushing is especially suitable for
replacing old compressor oil or removing most metallic residue from the
system.
Before flushing, the refrigerant must first be extracted from the air con-
ditioning system. Afterwards, the system components which cannot be
flushed must be disconnected from the refrigerant circuit (for example,
the compressor or filter). After that, the components to be flushed are
connected to the service ports of the AirConServiceCenter using
special adapters to form a flushing circuit.
S h o r t s e l e c t i o n
□
F r e e s e l e c t i o n
■
O t h e r s e l e c t i o n s
□
E N T E R - O K
⬍
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