Correcting After Abnormal Completion Of The Test Run - Daikin VRV IV+ RYYQ14U7Y1B Series Installer And User Manual

21 | Commissioning

21.6 Correcting after abnormal completion of the test run

Installer and user reference guide
150
2 Make sure all field settings you want are set; see
4
settings" [ 122].
3 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.
4 Make sure the default (idle) situation is existing; see
4
2" [ 125]. 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 "
centralised control" will display on the user interface of indoor units.
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.
" and the indication "Test operation" and "Under
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 "21.6 Correcting after abnormal completion of
4
the test run" [ 150] to take actions for correcting the
abnormality. When the test operation is fully completed,
normal operation will be possible after 5 minutes.
"20.2 Making field
"To access mode 1 or
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1B – 2020.10