EN | 23 | ACX120/220 | (
© MAHLE
POSSIBLE ERROR
INDICATION
Too high pressure in the A/C
service unit.
Valves or couplers closed or
system empty.
12.2
Vacuum
From the main menu select MANUAL
CYCLE and press VACUUM.
Connect the HP – LP couplers or the
single coupler to the vehicle system and
screw the couplers. Now set the time for
the vacuum and control phase, if different
from the default settings. The vacuum
phase is automatically followed by the
“vacuum test” phase.
Select and confirm START to start the
vacuum phase.
POSSIBLE ERROR
INDICATION
System pressurised
POSSIBLE ERROR
INDICATION
System not tight
12.3
Charge
In the main menu select MANUAL CYCLE
and then CHARGE.
This page is shown with the following
preset values (this below is an example):
Amount of refrigerant that will be
charged into the system and the
amount of refrigerant available in
the inner tank of the UNIT.
Charge type: It allows selecting
from which hose the service is
carried out, according to the
type of system.
o
Charge from HP hose
(red)
o
Charge from LP hose
(blue)
o
Charge from HP hose
(red) and LP hose (blue)
o
Charge from HP hose
(red) on the system low
pressure side. Specific
for some Renault
models.
Connect the couplers to the vehicle
fittings and follow the instructions on the
screen page.
Select and confirm START to begin the
refrigerant filling phase.
POSSIBLE ERROR
INDICATION:
The amount of refrigerant in the
A/C service units tank is less
than that required. Closed hoses,
charge impossible.
THIS PHASE HAS TO BE
CARRIED OUT EXCLUSIVELY
ON A/C SYSTEM UNDER
VACUUM (AFTER A VACUUM
PHASE HAS BEEN PULLED).
12.4
Flushing (with optional
accessories)
After performing a lot of charge cycle or
after replacing components or parts of
the /AC circuit on a vehicle it is advisable
to carry out a system flushing.
The system washing (Flushing) consists in
purifying the vehicle cooling system
through several R134a refrigerant flushes,
by recovering it each time, so that the
