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

8.5 To perform a test run

RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
INFORMATION
▪
When [2‑88]=0, the test operation time can take up to 4 hours.
▪
When [2‑88]=0 and the test operation was aborted before the end, the
warning code will be visible on the user interface. It is possible to operate the
system. Leak detection function will NOT be available. It is recommended to re-
execute the test operation.
▪
If the autocharge function was used, the unit informs the user in case
unfavourable ambient conditions are present to gather detailed refrigerant
situation data. When this is the case, the accuracy of leak detection operation will
drop. It is recommended in such a case to perform the test operation again on
another more favourable moment. In case no "
displayed during the autocharging procedure, it is possible to have reliable data
gathering during the test operation. See ambient limitations in the information
table on "6.7.7 Step 6b: To manually charge
In case Hydrobox units or RA DX indoor units are present in the system, the pipe
length check and the refrigerant situation check will not be performed.
In case Hydrobox units or RA DX indoor units are present in the system, the pipe
length check will not be performed.
▪ Make sure to carry out the system test operation after the first installation.
Otherwise, the malfunction code
normal operation or individual indoor unit test run cannot be carried out.
▪ 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" [ 84].
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" [ 86]. 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.
refrigerant" [
will be displayed on the user interface and
" and the indication "Test operation" and "Under
8 Commissioning
|
" or " " information was
4
73].
"7.2 Making field
"7.2.4 To access mode 1
Installer and user reference guide
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