EN | 26 | ACX120/220 | Maintenance
© MAHLE
compressor infeed, including the dryer
filter leak test.
In case of failed leak test, it is necessary
to check the charge hoses conditions
and the quick couplers leak, and make
the possible repair and then repeat the
test.
14.4
Cylinder pressure
check
In the main menu select MAINTENANCE
and press “CYLINDER PRESSURE
CHECK”.
Inside the equipment the internal tank will
be connected to HP gauge to allow the
reading of the refrigerant pressure.
14.5
Cylinder refrigerant
view
In the main menu select MAINTENANCE
and press “CYLINDER REFRIGERANT
VIEW”.
The available refrigerant for next
recharging is 2 kg less than the total
contents of the cylinder.
Two kg is the minimum quantity that
should be always left in an operating
ACX120/220.
14.6
Air purge system
In the main menu select MAINTENANCE
and press “AIR PURGE SYSTEM”.
If the station detects non-condensable
gas in the tank, when it is necessary or
when not mandatory but accepted by the
user, it will automatically run the non-
condensable gas discharge procedure.
The procedure will take a few minutes,
and its duration may vary according to
the amount of non-condensable gas
within the tank.
14.7
Air purge
In the main menu select MAINTENANCE
and press “AIR PURGE”.
By selecting this function, you can check
the non condensable gas condition (high
level red area, low level green area ) and if
necessary you can start manually the
discharge.
14.8
Pressure zero
In the main menu select MAINTENANCE
and press “PRESSURE ZERO”.
This function allows to determine and
store the atmospheric pressure value.
We recommend running this procedure
every time the ACX120/220 will be moved
from a location to another with a different
altitude.
14.9
Counters
In the main menu select MAINTENANCE
and press “COUNTERS”.
In the COUNTERS page, at any time, the
vacuum pump and compressor hours of
life can be displayed; besides, remaining
time before replacement of vacuum pump
oil and dryer filter can also be displayed.
This is useful to understand if some
maintenance activity should be performed.
14.10
E³ pump - vacuum
pump oil change
The ACX120/220 is equipped with a
special function named E³ PUMP that
enables to optimize the vacuum pump oil
