LG AC Smart - Before Installing AC Smart

2. AC Smart Installation
Installation/Owner's Manual
2-2
Before installing AC Smart
A single AC Smart can connect 64 units (indoor unit and ventilator) at maximum.
It can also connect 128 units via the extension kit.
For this, AC Smart must be connected to PI485, and PI485 must be connected to the outdoor unit
connected to the unit.
The following is the example of connecting AC Smart to the unit.
ON
L1 2 3 4
KSDO4H
ON
L1 2 3 4
KSDO4H
Multi V
Multi V
AC Smart
PI485
PI485
PI485
PI485
Multi V
Multi
ON
L1 2 3 4
KSDO4HON
L1 2 3 4
KSDO4H