Daikin VRV 5 RXYA8A7Y1B, Инструкция по установке и эксплуатации

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25 | Troubleshooting
Installer and user reference guide
179
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Main
code
Sub code Cause Solution SVEO
(a)
SVS
(b)
Master Slave 1
R32 sensor malfunction in one of
the indoor units
(c)
Check connection on PCB or
actuator.
The system will continue operating,
but the 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.
R32 sensor end of
lifetime<6 months in one of the
indoor units
(c)
One of the sensors is almost at the
end of lifetime and must be
replaced.
Refer to the service manual for
more information.
Waiting for indoor unit R32 sensor
replacement input
(c)
Refer to the service manual for
more information.
Waiting for SV unit replacement
input Refer to the service manual for
more information.
R32 sensor malfunction in one of
the SV units Check connection on PCB or
actuator.
The system will continue operation,
but SV unit in scope will stop
operating. Refer to the service
manual for more information.
R32 sensor end of lifetime less than
6 months in one of the SV units One of the sensors is at the end of
lifetime (for CH-22: almost) and
must be replaced.
Refer to the service manual for
more information.
R32 sensor end of lifetime in one of
the SV units
Earth leakage detector activated Restart the unit. If the problem
reoccurs, contact your dealer.
Earth leakage detector malfunction:
open circuit) - A1P (X101A) Check connection on PCB or
actuator.
High pressure switch was activated
(S1PH) – main PCB (X2A) Check stop valve situation or
abnormalities in (field) piping or
airflow over air cooled coil.
▪ Refrigerant overcharge
▪ Stop valve closed
▪ Check refrigerant amount
+recharge unit.
▪ Open stop valves
Stop valve closed (liquid) Open liquid stop valve.
▪ Refrigerant overcharge
▪ Stop valve closed
▪ Check refrigerant amount
+recharge unit.
▪ Open stop valves.