Daikin BRR9B1V1, Installation Manual

Page: 24 / 40

8 | Configuration
Installation manual
24
BRR9B1V1
Communication box
4P617761-1 – 2020.04
Procedure 7-segments display Remarks
Press BS2 to
select the
desired setting.
BS1 BS2 BS3
MODEMODE MODE MODE
No address set 0 is factory setting. If no setting
has been made, communication
cannot be established.
Address 1 Displays the total number of
button presses in the 7-segment
(center and right).
⁞ ⁞ ⁞
Address 63 An address can be setup to 63.
When BS2 is pressed after that,
the setting will change to
"Address not set".
Press BS3 once.
BS1 BS2 BS3
MODEMODE MODE MODE
When the value is determined,
the 7-segment display changes
from blinking to lit.
Press BS3 once.
BS1 BS2 BS3
MODEMODE MODE MODE
—
Press BS1 once.
BS1 BS2 BS3
MODEMODE MODE MODE
Returns to the initial indication.
8.3 To set the addresses of the indoor units
Refer to the installation manual of the controller.
8.4 Configuring the communication box
WARNING
▪
Do NOT turn ON the power when the communication box cover is open. An
electrical shock might occur.
▪
Before turning ON the power, make sure that the communication box cover is
closed.
8.4.1 To configure the communication box PCB for the indoor units
You can configure 3 different settings on the A1P PCB:
▪ the RS‑485 Modbus baud rate,
▪ the Modbus communication parity/stop bit,
▪ the Modbus slave address setting.
RS‑485 Modbus baud rate setting
Setting
DS1 pin 2: OFF 9600 bps