ACS 553, ACS 563 Service Manual
1 689 975 295 2021-04-13Robert Bosch GmbH
27
Diagnostics and Testing
Refer to Scale Calibration at
Replacement Scale Assembly in the Electrical
section, if necessary.
The Recover and Charge function tests must be
performed sequentially, in the order presented
here.
During the Recover process, the system will
inlet pressure check.
1. Empty the oil drain bottle before starting a
recovery.
2.
(blue) hoses to the test tank.
3. Open the coupler valves on the hoses by
turning the collars clockwise.
4. Select the icon from the main
menu.
5. The screen will message display: “Connect
both service hoses to AC system being
serviced and open both coupler valves”.
6. Select icon and unit perform:
• Inlet pressure check.
•
• Recovery stage.
7. Select icon to continue or icon to
cancel.
in the source tank to verify it is R1234yf and
not contaminated. The machine displays the
following screens:
INITIALIZING REFRIGERANT IDENTIFIER
ANALYZING REFRIGERANT SAMPLE
REFRIGERANT PURITY PASSED
9. The unit performs a self-cleaning cycle to
clean the internal hoses from refrigerant
traces, if any.
10. The function stops when the refrigerant is
fully recovered.
11. After the recovery, the machine performs an
oil drain procedure, which may take up to
90 seconds to be completed.
12. After the oil drain is complete, a summary
of the amount of refrigerant recovered and
oil drained is displayed. The unit displays:
13. Select icon to print out recovery
information and pre-recover diagnostics or
select icon to return the main menu.
The displayed recovered weight can vary
depending on ambient conditions and
should not be used as an indicator of
scale accuracy. The amount of oil that was
system after evacuation is complete.
• Use only oil to replace the oil removed
during the recycling process.
• Dispose of used oil according to government
laws and regulations.
Recovery is complete.
Or:
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