Daikin SV1A25AJV1B - 20 Maintenance and Service; Before the Maintenance and Service of the SV Unit; Unit Maintenance and Service Label

20 | Maintenance and service
Installer and user reference guide
117
SV1A25AJV1B+SV4~8A14AJV1B
VRV 5 safety valve unit
4P749917-1 – 2023.09
20 Maintenance and service
In this chapter
20.1 Before the maintenance and service of the SV unit .............................................................................................................. 117
20.2 SV unit maintenance and service label .................................................................................................................................. 117
20.1 Before the maintenance and service of the SV unit
Before starting the maintenance and service, field setting must be applied on the
VRV 5 heat pump outdoor unit. For more information, see the installation and
operation manual of the outdoor unit.
If field setting is applied, the shut-off valves of the SV unit will close. The
compressor, outdoor fan and indoor unit will stop operating and the 7-segment
display will show code " ".
To confirm the full closure of the shut-off valves, " " will be shown on the 7-
segment display of the outdoor unit.
The system power supply must be turned off for maintenance.
20.2 SV unit maintenance and service label
WARNING
Never power off the unit for maintenance and service before the shut-off valves are
closed.
2
1
4
3P736525-1
3
2'
ba
dc
fe
a Caution for maintenance and servicing of SV unit
b Consult the installation manual or service manual
c Apply the field setting on the outdoor unit
d Wait for two minutes to allow the system to close the valves
e Turn off the system power
f Perform maintenance and servicing on the SV unit