EN
13.8.5 After ending the air conditioning service
After the air conditioning service has finished, you are prompted to disconnect the hoses of the A/C service unit
from the vehicle air conditioning system.
1. Disconnect the service hoses and press
The service hoses will now be drained. the A/C service unit is then ready for further use.
2. Screw the valve caps of the air conditioning system back on the connections.
13.9 Flushing the air conditioning system
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 vehicle air conditioning system. Af
terwards the system components which cannot be flushed must be disconnected from the refrigerant cir
cuit (for example, the compressor or filter). After that the components to be flushed are connected to the
service ports of the A/C service unit using special adapters to form a flushing circuit.
1. Fit the connections of the A/C service unit to the vehicle air conditioning system, and open them.
2. In the basic menu use the cursor keys or to select Free selection.
Short selection
Free selection
Other selections
ENTER‐OK
3. Press
ENTER
4. If necessary, use the keypad to enter the data and press
press
ENTER
5. Select Rec/Recycling phase (the setting flashes) and press
6. For the Pressure increase Test time, enter 1 min and press
7. Deselect Vacuum phase using No (the setting flashes) and press
8. Deselect Filling phase using No (the setting flashes) and press
9. Select Process start by pressing
10. After the extraction process is complete, disconnect the A/C service unit 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
12. Connect the components for flushing to the service ports of the A/C service unit using special adapters and in
accordance with the manufacturer's specifications to form a flushing circuit.
Note Observe the guidelines on repairs from the vehicle manufacturer.
13. In the basic menu use the cursor keys or to select Other selections.
Short selection
Free selection
Other selections
ENTER‐OK
14. Press
ENTER
15. Use the cursor keys or to select Flushing.
28
ENTER
to confirm.
to switch to the next program step.
ENTER
to confirm.
to confirm.
ENTER
to confirm. If no data has to be entered,
ENTER
to confirm.
ENTER
ENTER
ENTER
.
to confirm.
to confirm.
to confirm.