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23| ACX2281| Maintenance
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10 Maintenance
Please contact an authorized technical service
center for purchasing factory replacement parts.
10.1
Maintenance interval
Make sure ACX2281 is disconnected from power before
removing plastic housing.
Never perform any maintenance work which is not expressly
recommended in this Section.
Contact customer service if components have to be replaced
other than in the course of maintenance work.
To access MAINTENANCE from the MAIN MENU, press
and s
croll to MAINTENANCE and then select.
Fig. 27: Maintenance screens
10.2 Filling internal refrigerant cylinder
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 cylinder must be filled with liquid refrigerant. Use
only R1234yf refrigerant.
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 ACX2281 is 4kg – 10.0kg.
An inadequate quantity of refrigerant may make
effectiveness of filling the vehicle air conditioning system
impossible. Also, if there is an insufficient quantity, the
ACX2281 may not be able to operate efficiently. In the
event of an excessive quantity, there may not be space for
the refrigerant recovered from the vehicle air conditioning
system.
Do not open coupler until unit prompts technician to open.
1. From the MAINTENANCE menu, scroll until INTERNAL
BOTTLE FILL is highlighted and press.
2. To adjust the charge amount, highlight the value and press to adjust
the value higher or lower.
3.
Press the
to accept
and begin process.
or the X to cancel
adjustment.
4. Follow the menu prompting.
The current pressure inside the external refrigerant bottle is
indicated on the low-pressure gauge.
Do not interrupt the automatic filling process prior to
automatic termination by the ACX2281.
Description
Period
Calibration of scales
1x per year to ensure accuracy
Vacuum pump oil replacement and
system leak test
After 1000 hours of service
Combo filter replacement and system
leak test
After 75kg of refrigerant
processed
System leak test
As required
