Non-Condensable Gas Discharge; Quick Mode And Zero Tolerance Charge Mode - MAHLE ACX120 Manual

Indeed the amount of oil to be charged is
that extracted during the refrigerant
recovery phase which is very small. In the
car A/C system you have to add only the
oil amount necessary to restore the
amount set by the car manufacturer
FEATURES
Your new A/C service station is equipped
with new E³ CONNECT quick couplers.
These new couplers offer the following
functions:
1. Avoid dispersion of the refrigerant,
allowing the recovery by the tool
(thus protecting the environment and
saving refrigerant).
2. Automatic leak test of the car A/C
system valve at the end of the
service.
After connecting the quick couplers to the
(high pressure) HP and (high pressure) LP
connectors of the vehicle, screw the
valves only when
messages on the tool display.
10.2 Non-condensable gas
discharge
The station is equipped with the AIR
PURGE SYSTEM function, which allows
automatically detecting and purging non-
condensable gas (mainly air) accumulated
within the tank.
Periodically, basically every week, the
station, the first time it is switched on that
day, will suggest running the AIR PURGE
SYSTEM procedure
Running this procedure is very important
to ensure the ideal working parameters
for the station operation. The presence of
non-condensable gas in the tank will
required by the
EN | 20 | ACX120/220 | A/C system charge
increase the pressure inside the tank and,
therefore, will slow down and reduce the
efficiency of charge cycle on the vehicle.
The procedure will take a few minutes,
and its duration may vary according to
the amount of non-condensable gas
within the tank.
NON-CONDENSABLE
GAS VENT VALVE
WARNING:
coupling taps closed when the
unit is not in use and at the end of
vehicle service operations.
WARNING: For the Air Purge
System procedure to be executed
manually, the station must have
been off for at least one hour.
10.3 Quick mode and zero
tolerance charge mode
ACX120/220 can apply two different
refrigerant charge modes; the first one is
called Quick mode and features the
opening of the charge valve by charging
refrigerant through the HP port. By the
Quick Mode part of the refrigerant
remains into
compensated by software calculation.
Leave the
the hoses and
quick
is
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