Daikin VRV IV RKXYQ5T8Y1B Series, Инструкция для установки и пользователя

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20 | Commissioning
Installer and user reference guide
133
R R8T7V1B
VRV IV heat pump for indoor installation
4P499898-1A – 2020.10
Completion Description
Normal
completion
Abnormal
completion
Refer to "Correcting after abnormal completion of the
test run" [
4
134] to take actions for correcting the
abnormality. When the test operation is fully completed,
normal operation will be possible after 5 minutes.
20.4.3 To perform a test run (7-segment display)
(in case of 8 HP)
1 Make sure all field settings you want are set; see "19.2 Making field
settings" [ 4 107].
2 Turn ON the power to the compressor unit, heat exchanger 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 "To access mode 1 or
2" [ 4 110]. Push BS2 for 5 seconds or more. The unit will start test operation.
Result: The test operation is automatically carried out, the compressor 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 compressor unit 7‑segment display.
Completion Description
Normal
completion No indication on the 7‑segment display (idle).