About Test Run; To Perform A Test Run; Correcting After Abnormal Completion Of The Test Run; Operating The Unit - Daikin VRV W T Serie Manual De Instalación

8 Commissioning
Inspect the water strainer at the inlet piping of the outside
unit. Clean if it is dirty.
The piping work has been carried out according to this
document and the applicable legislation. Make sure that
following components are positioned at their correct
places:
▪ water strainer,
▪ air purge valve,
▪ automatic water supply valve, and
▪ expansion tank.
Water circuit
Make sure that the water circuit is filled.
Water flow
Make sure that the calculated water flow rate can be
reached.
Power supply voltage
Check the power supply voltage on the local supply panel.
The voltage must correspond to the voltage on the
nameplate of the unit.
8 .4

About test run

The procedure below describes the test operation of the complete
system. This operation checks and judges following items:
▪ Check for incorrect wiring (communication check with indoor
units).
▪ Check of the stop valves opening.
▪ Judgement of piping length.
▪ Make sure to carry out the system test operation after the first
installation. Otherwise, the malfunction code
on the user interface and 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 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.
8 .5

To perform a test run

1 Close all front panels in order to not let it be the cause of
misjudgement (except the control box inspection opening
service cover).
2 Make sure all field settings you want are set; see
field settings" on page 34.
3 Turn ON the power to the outside unit and the connected indoor
units.
NOTE
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.
Installation manual
40
4 Make sure the default (idle) situation is existing; see
access mode 1 or 2" on page
more. The unit will start test operation.
Result: The test operation is automatically carried out, the
outside unit display will indicate "
operation" and "central 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 outside unit 7-segment
display.
Completion
Normal completion No indication on the 7-segment display (idle).
Abnormal
completion
will be displayed
8 .6
The test operation is only completed if there is no malfunction code
displayed on the user interface or outside 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.
8 .7
Once the unit is installed and test operation of outside unit and
indoor units is finished, the operation of the system can start.
For operating the indoor unit, the user interface of the indoor unit
"7.2 Making
should be switched ON. Refer to the indoor unit operation manual for
more details.
35. Push BS2 for 5 seconds or
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
Description
Indication of malfunction code on the
7-segment display.
Refer to "8.6 Correcting after abnormal
completion of the test run" on page 40
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation will be possible after 5 minutes.
Correcting after abnormal
completion of the test run

Operating the unit

RWEQ96~432TATJU + RWEQ96~432TAYDU
VRV W T-Series water-cooled system air conditioner
"7.2.4 To
" and the indication "test
to take
4P484115-1A – 2017.10