Daikin VRV 5-S - Refrigerant Leak Detection System

25 | Troubleshooting
Installer and user reference guide
165
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
Main
code
Sub
code
Cause Solution SVEO
(a)
SVS
(b)
Mismatch between wiring path and
piping path during test run
Mistake detected during SV unit and
indoor unit connection check (see
"22.7To perform a SV/indoor unit
connection check"[4151]). Confirm
wiring between indoors and SV units.
Refer to SV unit manual for correct
way of wiring.
Auto address malfunction
(inconsistency)
Check if interconnected unit amount
matches with powered unit amount
(by monitor mode) or wait until
initialisation is finished.
Maintenance warning (ventilation fan) SV unit ventilation needs maintenance
check. Refer to the SV unit manual for
more information.
In case other error codes appear, contact your dealer.
(a)
The SVEO terminal provides an electrical contact that closes in case the indicated error occurs.
(b)
The SVS terminal provides an electrical contact that closes in case the indicated error occurs.
(c)
The error code is only shown on the user interface of the indoor unit where the error occurs.
25.4 Refrigerant leak detection system
Normal operation
During normal operation, the alarm only and supervisor remote controller have no
functionality. The screen of the remote controller in alarm only and supervisor
mode will be off. Operation of the remote controller can be checked by pushing
the button to open the installer menu.
c
a
d
e f
d
c c
d
e
g
h
b
d
e
a Heat pump outdoor unit
b SV unit
c Refrigerant piping
d VRV direct expansion (DX) indoor unit
e Remote controller in normal mode
f Remote controller in alarm only mode
g Remote controller in supervisor mode (mandatory in some situations)
h Centralised controller (optional)
Note: During start-up of the system, the mode of the remote control can be
verified from the screen.