Setting The Master User Interface - Daikin RXYQ6BRY16 Installation Manual

6.4 Setting the master user interface

1
8
2
1 Outdoor unit
2 Refrigerant piping
3 VRV indoor unit
4 Branch Provider unit (required to connect
Mini-split indoor units)
5 Mini-split indoor units
6 User interface (dedicated depending on
indoor unit type)
7 User interface (wireless, dedicated
depending on indoor unit type)
8 Cool/Heat selector
When the system is installed as shown in the
figure above, it is necessary to designate one of
the user interfaces as the master user interface.
The displays of slave user interfaces show "
(changeover under centralized 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.
Indoor unit master allocation is determined as
follows in special cases:
• In case of VRV indoor units combined with RA
indoor units, the operation mode is by default
selected by the master user interface of the RA
indoor unit. Contact your installer if you wish to
know which indoor unit type received the master
allocation.
How to designate the master user interface
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In case only VRV indoor units are connected to
the VRV system:
Press the operation mode selector button of
1
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. The display showing "
(changeover under centralized control) of all
slave user interfaces connected to the same
outdoor unit flashes.
Press the operation mode selector button of
2
the controller that you wish to designate as
the master user interface. Then designation is
completed.
This user interface is designated as the
master user interface and the display showing
" " (changeover under centralized
control) vanishes. The displays of other user
interfaces show "
centralized control).
In case VRV indoor units and RA indoor units
are connected (or only RA indoor units):
Depending on field setting which was executed on
the outdoor unit, the right for master selection lies
"
with the VRV indoor unit or the RA indoor unit
(see below).
1. I n case the VRV indoor unit is assigned as
master selector, the same procedure as above
can be followed.
2. I n case the RA indoor unit is assigned as
master selector, following procedure can be
followed.
Procedure: stop all indoor units (VRV indoor+RA
indoor units).
When the system is not operating (all indoor units
thermo OFF), you can define the master RA indoor
unit by addressing that unit with infrared user
interface (instruct thermo ON in desired mode).
The only way to change the master unit is by
repeating the previous procedure.
A cool/heat switchover (or opposite) is only
possible by changing the operation mode of the
define master indoor unit.
In case you want to keep the VRV indoor unit user
interface as master, contact your installer.
"
" (changeover under
11/01/2023 16:40:17