VAS 581 001A
8
Operation
A
NOTICE!
When the air conditioning system is being serviced, the engine and the
air conditioning unit must be switched off.
8.1
Shutdown in case of repair, emergencies and
malfunctions
1. To ensure that the device is disconnected from the power supply for
repairs, switch it off using the main switch and also pull out the power
plug.
2. To turn off the unit in an emergency or malfunction, turn off the main
switch.
8.2
Short selection
I
NOTE
A fully automatic air conditioning service is started using the "Short
selection" menu. You only have to enter the filling quantity as shown
on the label in the vehicle.
The following actions are performed automatically in succession in the
"Short selection" menu:
Performing the refrigerant analysis (see chapter "Analysing
refrigerant" on page 98)
Extraction of the refrigerant
Recycling the refrigerant (purity = SAE J 2099)
Pressure rise test
Draining the used oil
Evacuating the system
Before working on the vehicle air conditioner, a leak inspection must
be carried out. The air conditioner is filled with a sample refrigerant.
The pressure in the air conditioner must remain constant over a
period of 5 minutes. The air conditioning unit can only be completely
filled if this test has been successfully completed. The sample filling
is then drained and the air conditioner evacuated. The final filling
quantity is completely filled up to ensure high filling accuracy.
Leak test / vacuum check
Filling with new oil to the required quantity
Filling with UV additive
Filling of refrigerant
After each process has been performed, a service report is printed.
Subsequent actions are only initiated once the preceding action has
been completed successfully.
EN
Operation
103