MAHLE ACX1281, Operation Manual

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Operation | ACX1281 | 23 ACX1281 | 23 | 23 en
6.8 Draining service hoses
1. Select " Maintenance >> Hose drain ".
2. Follow the menu prompting.
6.9 Setting service parameters
1. Select " Settings >> A/C service parameters ".
2. Alter the parameters with the input keys.
t
The parameters can be pre-set at the start of the correspond-
ing service phase in manual and automatic A/C service.
Service parameters
Aut
omatic vehicle
A/C ser
vice
Manual
vehicle A/C serv-
ice
Recover
y
V
acuum
Rechar
ge
Vacuum time x – x –
Vacuum hold time
x
– x –
R1234yf refrigerant
x
– – x
Tab. 2: Setting parameters
m
Used oil must be disposed of in accordance with local regu-
lations!
6.10 Non-condensable gases
t
Purging takes place automatically in the ACX1281 on the
basis of a pressure and temperature algorithm. The purged
non-condensable gases are routed to the built-in ventilation
fan and removed from the ACX1281.
6.11 System leak test
t
The ACX1281 performs a system leak test to check that none
of the components carrying refrigerant are leaking. Every 24
hours, after 150kg of refrigerant has been processed, after
combo filter replacement or after 60 hours of vacuum time,
the operator is requested to perform a "system leak test".
The operator can conduct a "system leak test" at any time on
completion of a process phase.
t
The system leak test takes roughly 30 minutes.
h Select " Maintenance >> System leak test ".
”
The leak test process is started.
The following action must be taken if the system leak test is
unsuccessful:
1. Check the service hoses and filter connections for leaks.
2. The valves of the service quick-release couplings must be
closed.
3. Repeat the system leak test.
t
Contact customer service if the system leak test is again unsuc-
cessful.