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17| ACX2281 | A/C System service
7.3 Setup
From the SETUP menu, it is possible to enable/disable and set
certain parameters prior to performing A/C system service. To
access SETUP from the main menu, press,
and
the
SETUP menu will be displayed.
Parameter
Description
Wi-Fi
Allows connection to wireless internet access
Provide print options
Update
Allows software updating
Brightness
Adjustment of screen backlight
Maintenance
Counters
Displays historical unit information
Units of
measurement
Allows metric and empirical unit changes for all
unit parameters
Account
User information definitions
Language
Allows adjustment of user language on display
Remote Control
Used for remote tech service diagnostics
System Information
Displays all internal system information
Date and Time
Adjustment of date and time
Settings
Allows enable and disable for selected
functions
Configure
Password protected service information
7.4
Checking type of connection of external
refrigerant bottle
Check the type of source tank, 2 types are available:
—
Refrigerant cylinder with plunger (typically 2
valves):
Connect to the liquid valve and keep tank in the upright
position to transfer refrigerant.
—
Refrigerant cylinder without plunger (single valve):
Connect to the available valve and invert tank to
transfer refrigerant.
Fig. 14: Virgin refrigerant cylinder tank types
The LP (blue) gauge indicates the pressure inside the
external cylinder
7.5
Internal Bottle Fill
Warning – Risk of frostbite from
escaping refrigerant
Refrigerant causes severe frostbite
on the skin.
Check the service hoses for damage.
Firmly connect the service quick-release
couplings to the service hoses.
Wear protective goggles.
Wear protective gloves.
Before the ACX2281 can be used, the internal refrigerant
bottle must be filled with liquid refrigerant. Use only R1234yf
refrigerant.
A menu-driven refrigerant check is performed before filling
the internal refrigerant bottle.
The refrigerant can be obtained from your gas supplier. It can
be stored normally and transported in bottles with connection
fittings.
To ensure a reliable procedure, it is advisable to use the
optimum quantity of refrigerant. The optimum quantity of
refrigerant for the ACX2250 is 4kg – 9.5kg.
An inadequate quantity may make efficient filling of the
vehicle air conditioning system impossible. Also, if there is an
insufficient quantity, the ACX2250 may not be able to operate
efficiently. In the event of an excessive quantity, there may
not be sufficient space for the refrigerant recovered from the
vehicle air conditioning system.
Generally speaking, the actual quantity of refrigerant added
exceeds the set quantity by approx. 200g as there is no
refrigerant in the internal refrigerant circuit. Add 200g to the
set quantity when filling with refrigerant for the first time.
1. Select "Maintenance>>Internal bottle fill".
2. Follow the menu prompting.
The current pressure inside the external refrigerant bottle is
indicated on the low-pressure gauge.
Any amount of refrigerant between 200g and 10500g can be
added.
Do not interrupt the automatic filling process prior to
automatic termination by the ACX2281.
Press the Home key to check the quantity of refrigerant in the
internal refrigerant bottle upon completion of the filling
operation.
