Waeco AirConServiceCenter ASC3500G Operating Manual page 92

Operation
8.7.1 Recovery phase
1. Enter the preferred settings and press ENTER to confirm.
2. If "Rec/Recycling phase" has been selected, enter the preferred
waiting time for the pressure increase (standard is 1 min.) in the fol-
lowing menu and press ENTER to confirm, otherwise continue with
chapter "Vacuum process" on page 92.
I
NOTE
The waiting time ensures that any residual refrigerant vaporises and
can then be extracted. The vaporising residual refrigerant triggers an
increase in pressure.
8.7.2 Vacuum process
1. Enter the preferred settings and press ENTER to confirm.
2. If "Vacuum phase" has been selected, enter the preferred vacuum
time (standard is 20 min.), otherwise continue with chapter "Filling
process" on page 93.
3. Use the cursor key  to enter the vacuum phase time.
4. Press ENTER to confirm both settings.
I
NOTE
The air conditioning system is drained completely by the vacuum pump.
This is used to remove any remaining carrier gases or moisture, and to
prepare the air conditioning system for the filling process. Any residual
refrigerant extracted which is still bonded in the refrigerant oil is col-
lected by the AirConServiceCenter and recycled.
92
Rec/Recycling
phase?
ENTER-OK STOP-EXIT
Pressure increase
Test time
ENTER-OK STOP-EXIT
Vacuum phase
ENTER-OK STOP-EXIT
Vacuum time
Vacuum test time
ENTER-OK STOP-EXIT
ASC2500G/ASC3500G
Yes
No
min. 1
Yes
No
min. 20
min. 4
EN