To Perform A Test Run (7-Segment Display); Correcting After Abnormal Completion Of The Test Run; Troubleshooting; Solving Problems Based On Error Codes - Daikin VRV 5-S RXYSA4A7V1B Installation And Operation Manual

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.
19.5 To perform a test run (7-segment
display)
1 Make sure all field settings you want are set; see
settings" [ 4 35].
field
2 Turn ON the power to the outdoor unit and the connected
indoor units.
NOTICE
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
2" [ 4 36]. Push BS2 for 5 seconds or more.
access mode 1 or
The unit will start test operation.
Result: The test operation is automatically carried out, the
outdoor unit display will indicate "
operation" and "Under centralised control" will display on the
user interface of indoor units.
Steps during the automatic system test run procedure:
Step
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.
20.1.1

Error codes: Overview

In case other error codes appear, contact your dealer.
Main code
The R32 sensor in one of the indoor units has
detected a refrigerant leak
/ Safety system error (leak detection)
R32 sensor malfunction in one of the indoor
(c)
units
R32 sensor end of lifetime in one of the indoor
(c)
units
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1E – 2023.02
"18.1 Making
"18.1.4 To
" and the indication "Test
Description
Cause
Possible R32 leak. The system will automatically start
(c)
refrigerant recovery operation to store all refrigerant into
the outdoor unit. When refrigerant recovery operation is
finished, the system unit goes in locked status. Service is
needed to repair the leak and activate the system. Refer
to the service manual for more information.
(c)
An error related to the safety system occurred.
Refer to the service manual for more information.
Check connection on PCB or actuator.
The system will continue operation, but indoor unit in
scope will stop operating. Refer to the service manual for
more information.
One of the sensors is at the end of lifetime and must be
replaced.
Refer to the service manual for more information.
4 Check the test operation results on the outdoor unit 7‑segment
display.
Completion
Normal No indication on the 7‑segment display (idle).
completion
Abnormal Indication of malfunction code on the
completion 7‑segment display.
Refer to "19.6 Correcting after abnormal
completion of the test
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation will be possible after 5 minutes.
19.6 Correcting after abnormal
completion of the test run
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.
INFORMATION
Refer to the installation manual of the indoor unit for
detailed malfunction codes related to indoor units.
20

Troubleshooting

20.1 Solving problems based on error
codes
In case of a displayed malfunction code, perform correcting actions
as explained in the malfunction code table.
After correcting the abnormality, press BS3 to reset the malfunction
code and retry operation.
INFORMATION
If a malfunction occurs, the error code is displayed on the
outdoor unit's 7‑segments display and on the user interface
of the indoor unit.
Solution
20 Troubleshooting
Description
run" [ 4 39] to take
(a) (b)
SVEO SVS
Installation and operation manual
39