Operation
VAS 581 001A
30
8
Operation
A
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
NOTICE!
When the air conditioning is serviced, the engine and the air
conditioning must be switched off.
NOTE
Fully automatic air conditioning service is started with 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 “Analyzing refriger-
ant” on page 25)
Extraction of the refrigerant
Recycling the refrigerant (purity = SAE J 2099)
Pressure rise test
Draining of 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
for this. The pressure in the air conditioner must remain constant
over a period of 5 minutes. The air conditioning unit can only be com-
pletely filled if this test has been successfully completed. The sample
filling is then drained and the air conditioner evacuated. The final fill-
ing quantity is completely filled up to ensure high filling accuracy.
Leak test / vacuum check
Filling with new oil to the required quantity
Filling UV additive
Filling 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.
VAS-581-001A--O-US.book Seite 30 Montag, 17. Februar 2020 8:25 20