© MAHLE
A/C system service | ACX2120H | 19
en
9.2
Manual cycles
t
Access to manual cycles is available through the main menu
by using
ª©
to select "
Fig. 19:
Manual mode screen options
9.2.1
Recovery process
1.
In the manual cycle menu, use
ª©
to select Recovery and
press
.
2.
Follow on screen instructions to begin recovery process.
t
If no pressure is detected in the system, this function will not
start. Technician should ensure couplers are open. If the sys -
tem is empty, operator must exit and select a vacuum process.
m
There is potential for unit to display an error during this
service for high internal pressure. This can occur due to high
operating temperatures or hot refrigerant gasses entering the
ACX2120H.
9.2.2
Vacuum process
1.
In the manual cycle menu use
ª©
to select Vacuum and
press
.
2.
The unit will display a screen for technician to enter the length
of vacuum time and vacuum test time. (press
ª
to display
Vacuum test time screen).
3.
Connect HP/LP coupler(s) to the vehicle A/C system, open
the couplers and select START.
t
Be sure recovery has been performed prior to running a
Vacuum cycle.
Fig. 20:
Vacuum setup screens
