To Perform A Test Run - Daikin VRV IV W+ Series Installer And User Reference Manual

21.5 To perform a test run

RWEYQ8~14T9Y1B
VRV IV water-cooled system air conditioner
4P452191-1B – 2020.10
In case Hydrobox units are present in the system, the pipe length check and the
refrigerant situation check will not be performed.
▪ Abnormalities on indoor units cannot be checked for each unit separately. After
the test operation is finished, check the indoor units one by one by performing a
normal operation using the user interface. Refer to the indoor unit installation
manual for more details (e.g., Hydrobox) concerning the individual test run.
INFORMATION
▪
It may take 10 minutes to achieve a uniform refrigerant state before the
compressor starts.
▪
During the test operation, the refrigerant running sound or the magnetic sound
of a solenoid valve may become loud and the display indication may change.
These are not malfunctions.
1 Close all front panels in order to not let it be the cause of misjudgement
(except the electrical component box inspection opening service cover).
2 Make sure all field settings you want are set; see
4
settings" [ 116].
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
or 2" [ 118]. 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.
" 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
Pump down operation
Unit stop
21 Commissioning
|
"20.2 Making field
"20.2.4 To access mode 1
Installer and user reference guide
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