Daikin BRR9B1V1, Installation Manual

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5 | About the communication box
Installation manual
11
BRR9B1V1
Communication box
4P617761-1 – 2020.04
5 About the communication box
Use the communication box only in combination with the following models
(outdoor unit and capacity up unit). Do NOT connect it to any other model.
Used terms Model name
Communication box BRR9B1V1
Outdoor unit LRYEN10A7Y1
Capacity up unit LRNUN5A7Y1
The communication box contains 2 PCBs (A1P and A2P). The A1P PCB makes
communication possible between the communication box and the indoor unit. The
A2P PCB makes communication possible between the communication box and the
outdoor unit and capacity up unit.
Communication settings (slave address, baud rate, parity and stop bits) MUST be
made for A1P and A2P, respectively.
In this chapter
5.1 Identification........................................................................................................................................................................... 11
5.1.1 Identification label: Communication box .............................................................................................................. 11
5.1 Identification
NOTICE
When installing or servicing several units at the same time, make sure NOT to switch
the service panels between different models.
5.1.1 Identification label: Communication box
Location