Daikin VRV 5 - To Designate the Master User Interface; About Control Systems

7 | Operation
Installer and user reference guide
36
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A – 2024.02
When the system is installed as shown in the figure above, it is necessary to – for
each subsystem – designate one of the user interfaces as the master user
interface.
The displays of slave user interfaces show (changeover under centralised
control) and slave user interfaces automatically follow the operation mode
directed by the master user interface.
Only the master user interface can select heating or cooling mode (cooling/heating
masterhood).
7.6.2 To designate the master user interface
1 Press the operation mode selector button of the current master user interface
for 4 seconds. In case this procedure was not yet performed, the procedure
can be executed on the first user interface operated.
Result: The display showing (changeover under centralised control) of all
slave user interfaces connected to the same outdoor unit flashes.
2 Press the operation mode selector button of the controller that you wish to
designate as the master user interface.
Result: Designation is completed. This user interface is designated as the
master user interface and the display showing (changeover under
centralised control) vanishes. The displays of other user interfaces show
(changeover under centralised control).
Refer to the operation manual of the user interface.
7.7 About control systems
This system provides two other control systems beside individual control system
(one user interface controls one indoor unit). Confirm the following if your unit is
of the following control system type:
Type Description
Group control system One user interface controls up to 10 indoor
units. All indoor units are equally set.
Two user interface control
system
Two user interfaces control one indoor unit (in
case of group control system, one group of
indoor units). The unit is individually operated.
NOTICE
Contact your dealer in case of changing the combination or setting of group control
and two user interface control systems.