Flushing The Air Conditioning System - Waeco AirCon Service KSS Pingo R134a Bedienungsanleitung

Operation
9.9

Flushing the air conditioning system

I
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
conditioning 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 A/C service unit using
special adapters to form a flushing circuit.
1. First 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":
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
104
Short selection
Free selection
Other selections
ENTER-OK
Pingo
EN