F 002 DG9 448
2018-02-01
|
Bosch Limited
14 | ACS 151 | Program description
en
6.
Program description
6.1
Preparations for A/C service
!
The ACS 151 should not be used for servicing a vehi-
cle A/C system that has been repaired with a chemi-
cal sealant. The sealant could damage the ACS 151
and the vehicle A/C system. Non-compliance invali-
dates the warranty.
!
Do not attempt to shut off the valves on the R134a
tank when the ACS 151 is in operation.
Before servicing the vehicle A/C system, execute the
following preparatory procedure:
1.
Move the ACS 151 to a flat vibration-free surface
close to the vehicle.
2.
Apply the brakes to prevent the ACS 151 from rolling
away.
Caution!
Hot engine parts can cause severe burns to
the hands.
¶
Allow the engine to cool down before
work.
3.
Connect the power cable to the mains supply.
4.
Turn on the master switch.
6.2
Performing vehicle A/C service
The default values of the parameters in each stage are
listed in the following table:
Service phase
Parameter
Default value
Recovery
Pressure increase time
2 min
Vacuum
Vacuum time
20 min
Vacuum hold time
5 min
Tab. 1:
Default values of parameters
6.2.1
Recovery phase
To execute the recovery phase, press the
REC
button
on the keypad and skip to step 3 in the following pro-
cedure. Else, start from the main menu and execute all
the steps in the following procedure.
Step Press
key...
To...
Remarks
1
1
Select
A/C SER-
VICES
--
2
1
Select
BASIC
--
3
1
Select
REC
The message
CHECK
OIL BOTTLE
AVAILABILITY
is
displayed. Check if the
oil bottle is fixed.
4
Enter
Execute the instruc-
tion on the screen.
The message
OPEN HP
& LP VALVES
is dis-
played.
5
Enter
Execute the instruc-
tion on the screen.
The message
ENSURE
OIL VALVE IS
CLOSED
is displayed.
6
Enter
Start recovery
Quantity of the refriger-
ant is displayed.
"
You have successfully completed the recovery phase.
Press Enter to return to the main menu.
6.2.2
Vacuuming phase
i
Ensure that you perform recovery before vacuuming.
To execute the vacuuming phase, press the
VAC
button
on the keypad and skip to step 3 in the following proce-
dure.
i
Upon pressing the
VAC
button, the fields
VAC CREA
(vacuum creation time) and
VAC HOLD
(vacuum
hold time) are displayed. Set the values and proceed
to step 3 in the following procedure.
Else, start from the main menu and execute all the
steps in the following procedure.
Step Press
key...
To...
Remarks
1
1
Select
A/C SERVICES
--
2
1
Select
BASIC
--
3
2
Select
VAC.
Set values for
VAC CREA
&
VAC HOLD
The fields
VAC
CREA
(vacuum
creation time) and
VAC HOLD
(vac-
uum hold time) are
displayed.
4
Enter
Execute the instruction
on the screen.
--
5
Enter
Execute the instruction
on the screen.
--
6
Enter
Vacuuming starts. Once
the vacuuming is com-
plete, the vacuum hold
starts. Then execute the
instruction on the screen.
Observe the vacu-
um pressure on the
screen.
"
You have successfully completed the vacuuming phase.
