Daikin BRC073A4 - System Integration and Interface Use; Wired Interface Limitations with Wireless

User reference guideBRC0731A4
3P422724-1
43
Reference Information
Caution
The MODE CONFLICT can also happen to units that are turned on by the setback
function. This means that due to priority, they will not run and consequently will not be
able to maintain the temperature in the room. Please consider the use of the setback
feature in a multi system carefully to avoid situations like these.
Caution
When a KRP928 Interface adapter for Room Air Conditioner is connected, the mode
conict message will not be shown on the user interface, but the indoor unit will go
into standby mode.
Combined use of the wired and wireless user interface
Avoid using the wired user interface and the standard wireless remote controller at the same time.
If you do so anyway, following phenomena may occur:
Phenomenon Explanation
On the wireless user
interface
An incorrect unit status
(e.g. on/off, operation
mode, setpoint, fan
speed/direction) may
appear on the wireless
user interface display.
The wireless user interface does not receive feedback from the unit.
When a setting is changed (manually or automatically by a schedule)
on the wired user interface, the change is not communicated to the
wireless user interface.
Example
In case on/off was set by the wired user interface, the on/off status
shown on the wireless user interface will be incorrect. In this situation,
the user will need to push the wireless user interface on/off button
twice to achieve the required on/off setting change on the indoor unit.
At the same time, the setpoint, operation mode, and fan speed/
direction will be overwritten by the wireless user interface status.
On the wireless user
interface
When pushing a button,
all statuses of the
wireless user interface
display will be sent to the
indoor unit.
The wireless user interface sends all settings at once (e.g. on/off,
operation mode, setpoint, fan speed/direction, …) to the unit in case of
a setting change by any button.
When any button is pushed on the wireless user interface, all settings
(e.g. on/off, operation mode, setpoint, fan speed/direction, …) are sent
to the unit and settings set by the wired user interface are overwritten.
Example
In case the setpoint was set by the wired user interface, the setpoint
status shown on the wireless user interface will be incorrect. In this
situation, the user will overwrite the setpoint with the wireless setpoint
when pushing the setpoint up button on the wireless user interface.
At the same time, the on/off setting, operation mode, and fan speed/
direction will be overwritten by the wireless user interface status.