© MAHLE
24 | ACX2120H | Maintenance
en
10.10
Replace filter dryer
Warning - Risk of frostbite from escaping
refrigerant
Refrigerant causes severe frostbite on the
skin.
X
Check the service hoses for damage.
X
Firmly connect the service quick-release cou -
plings to the service hoses.
X
Wear protective goggles.
X
Wear protective gloves.
t
Unit operation is disabled at the end of the ter service life.
Each ter is marked with a unique code. This code must be
entered when replacing the ter. It is not possible to operate
the ACX2120H if the same code is re-used. It is advisable to
keep a supply of ters in stock to avoid downtimes due to
the unit being disabled.
t
The ACX2120H is disabled once 75kg of R134a refrigerant
has passed through the ter. A new ter must be installed
and its unique code entered in the ACX2120H before vehicle
A/C service can be performed.
1.
To begin the ter replacement process, from the
MAINTE
-
NANCE
menu, press
ª©
until
FILTER REPLACEMENT
highligh
is
ted and press
.
2.
Inser
ter code using the keypad.
Fig. 30:
Filter code entry
3.
Disconnect the HP and LP couplers and hoses and allow the
hose drain process to run to completion.
4.
Disconnect
Turn front locking latch using a flathead screwdriver and
carefully open the front housing.
ACX2120H from power supply.
5.
6.
Unscrew the 2 connection nuts from top and bottom of the ter
using a 17mm open-ended wrench to prevent the ter from
spinning and a 24mm open-ended wrench to loosen the nuts.
7.
Remove the straps
ter in place.
8.
Install new ter paying attention to the position of the gaskets
and ensure arrow faces downward.
Fig. 31:
Replacing filter
1 Filter
dryer
2 Connection
nuts
9.
Tighten the 2 connection nuts t
ter.
10.
Close front housing and secure latch.
11.
Connect unit to power and turn on.
12.
Allow unit to perform the automatic leak test requested by
the software when unit loads.
m
Take care not to damage any hoses or electrical connec -
ter.
m
Never r
ter.
10.11
Multipass
t
Run this procedure to circulate refrigerant within the ACX2120H.
This allows the unit to further purify the refrigerant and remove
any dirt/other impurities.
10.12
System info
t
In the Info page, the software version and serial number can
be displayed.
1.
From the
MAINTENANCE
menu, press
ª©
until
SYSTEM
INFO
is highlighted and press
.
Fig. 32:
System information screen
1
2
2
ACX2120H
