2. Installing ACP
Before installing the ACP
ACP provides 4 RS485 ports to connect the indoor unit. Maximum of 16 units can be connected to
PI485 for outdoor unit in 1 RS385 port, and maximum of 31 units for SINGLE/Ventilator PI485.
256 indoor units at maximum can be connected to one ACP. All of 256 indoor units may be connected
to one RS485 port, which is the maximum number of units for the ACP to connect. But, in order to
improve the communication performce of the RS485, we recommend to distribute them to four ports.
Note: Change the number of connections of RS485
If it is inevitable to change the above specification, call the system air conditioner support division
By considering three following cases using the ACP, perform the installation after carefully considering
how to use.
• Install the single ACP to use as web server
• Connect the single ACP to the AC Manager to use
• Connect more than one ACP to the AC Manager via the hub to use
2-2
ACP