Daikin RXYSQ-TAV User Manual

8 Troubleshooting
Installation and operation manual
27
RXYSQ8~12TMY1B
VRV IV-S system air conditioner
4P400263-1F – 2017.02
INFORMATION
During the test operation, it is not possible to stop the unit
operation from a user interface. To abort the operation,
press BS3. The unit will stop after ±30 seconds.
4 Check the test operation results on the outdoor unit 7‑LEDs
display.
Completion Description
Normal
completion
Abnormal
completion
Refer to "7.3.4Correcting after abnormal
completion of the test run"on page27 to take
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation will be possible after 5 minutes.
7.3.3 To perform a test run (7-segments
display)
Use this procedure in case of RXYSQ10+12.
1 Make sure all field settings you want are set; see "6.1Making
field settings"on page19.
2 Turn ON the power to the outdoor unit and the connected
indoor units.
NOTICE
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.
3 Make sure the default (idle) situation is existing; see "6.1.4To
access mode 1 or 2"on page20. Push BS2 for 5 seconds or
more. The unit will start test operation.
Result: The test operation is automatically carried out, the
outdoor unit display will indicate " " and the indication "Test
operation" and "Under centralised control" will display on the
user interface of indoor units.
Steps during the automatic system test run procedure:
Step Description
Control before start up (pressure equalisation)
Cooling start up control
Cooling stable condition
Communication check
Stop valve check
Pipe length check
Pump down operation
Unit stop
INFORMATION
During the test operation, it is not possible to stop the unit
operation from a user interface. To abort the operation,
press BS3. The unit will stop after ±30 seconds.
4 Check the test operation results on the outdoor unit 7‑segment
display.
Completion Description
Normal
completion
No indication on the 7‑segment display (idle).
Completion Description
Abnormal
completion
Indication of malfunction code on the
7‑segment display.
Refer to "7.3.4Correcting after abnormal
completion of the test run"on page27 to take
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation will be possible after 5 minutes.
7.3.4 Correcting after abnormal completion of
the test run
The test operation is only completed if there is no malfunction code
displayed. In case of a displayed malfunction code, perform
correcting actions as explained in the malfunction code table. Carry
out the test operation again and confirm that the abnormality is
properly corrected.
INFORMATION
If a malfunction occurs:
▪ In case of RXYSQ8: The error code is displayed on the
user interface of the indoor unit.
▪ In case of RXYSQ10+12: The error code is displayed
on the outdoor unit's 7‑segments display and on the
user interface of the indoor unit.
INFORMATION
Refer to the installation manual of the indoor unit for
detailed malfunction codes related to indoor units.
7.3.5 Operating the unit
Once the unit is installed and test operation of outdoor unit and
indoor units is finished, the operation of the system can start.
For operating the indoor unit, the user interface of the indoor unit
should be switched ON. Refer to the indoor unit operation manual for
more details.
8 Troubleshooting
8.1 Solving problems based on error
codes
In case of a displayed malfunction code, perform correcting actions
as explained in the malfunction code table.
After correcting the abnormality, press BS3 to reset the malfunction
code and retry operation.
INFORMATION
If a malfunction occurs:
▪ In case of RXYSQ8: The error code is displayed on the
user interface of the indoor unit.
▪ In case of RXYSQ10+12: The error code is displayed
on the outdoor unit's 7‑segments display and on the
user interface of the indoor unit.
In case of RXYSQ10+12: The error code on the outdoor unit will
indicate a main malfunction code and a sub code. The sub code
indicates more detailed information about the malfunction code. The
main code and sub code will be displayed intermittent (with an
interval of 1second). Example:
▪ Main code:
▪ Sub code:

Daikin RXYSQ-TAV Specifications

General

Brand	Daikin
Model	RXYSQ-TAV
Category	Air Conditioner
Language	English