Correcting After Abnormal Completion Of The Test Run; Operating The Unit - Daikin VRV IV+ Installer And User Reference Manual

8 | Commissioning

8.6 Correcting after abnormal completion of the test run

8.7 Operating the unit

Installer and user reference guide
112
Steps during the automatic system test run procedure:
Step
Note: 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.
5 Check the test operation results on the outdoor unit 7‑segment display.
Completion
Normal completion
Abnormal completion
The test operation is only completed if there is no malfunction code displayed on
the user interface or outdoor unit 7‑segment display. 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
Refer to the installation manual of the indoor unit for detailed malfunction codes
related to indoor units.
Once the unit is installed and test operation of outdoor unit and indoor units is
finished, the operation of the system can start.
Description
Control before start up (pressure equalisation)
Cooling start up control
Cooling stable condition
Communication check
Stop valve check
Pipe length check
Refrigerant amount check
In case [2‑88]=0, detailed refrigerant situation check
Pump down operation
Unit stop
Description
No indication on the 7‑segment display (idle).
Indication of malfunction code on the 7‑segment display.
Refer to "8.6 Correcting after abnormal completion of
4
the test run" [ 112] to take actions for correcting the
abnormality. When the test operation is fully completed,
normal operation will be possible after 5 minutes.
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10