Daikin VRV 5-S Series, Инструкция по установке и эксплуатации, Страница: 39 / 48

19 Troubleshooting
Installation and operation manual
39
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1A – 2020.01
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 outdoor unit 7‑segment
display.
Completion Description
Normal
completion No indication on the 7‑segment display (idle).
Abnormal
completion Indication of malfunction code on the
7‑segment display.
Refer to "18.6 Correcting after abnormal
completion of the test run" [
4
39] to take
actions for correcting the abnormality. When
the test operation is fully completed, normal
operation will be possible after 5 minutes.
18.6 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.
19 Troubleshooting
19.1 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.
19.1.1 Error codes: Overview
In case other error codes appear, contact your dealer.
Main code Cause Solution SVEO
(a)
SVS
(b)
The R32 sensor in one of the indoor units has
detected a refrigerant leak
(c)
Possible R32 leak. The system will automatically start
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.
/ Safety system error (leak detection)
(c)
An error related to the safety system occurred.
Refer to the service manual for more information.
R32 sensor malfunction in one of the indoor
units
(c)
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.
R32 sensor end of lifetime in one of the indoor
units
(c)
One of the sensors is at the end of lifetime and must be
replaced.
Refer to the service manual for more information.
▪ The stop valve of an outdoor unit is left closed.
▪ Refrigerant overcharge
▪ Open the stop valve on both the gas and liquid side.
▪ Recalculate the required amount of refrigerant from the
piping length and correct the refrigerant charge level
by recovering any excessive refrigerant with a
refrigerant recovery machine.
▪ The stop valve of an outdoor unit is left closed.
▪ Insufficient refrigerant
▪ Open the stop valve on both the gas and liquid side.
▪ Check if the additional refrigerant charge has been
finished correctly. Recalculate the required amount of
refrigerant from the piping length and add an adequate
amount of refrigerant.
Electronic expansion valve malfunction
(Y1E) - A1P (X21A)
(Y3E) - A1P (X23A)
Check connection on PCB or actuator.