LG multi V ARUN Series Installation Manual page 117

3 Independent power module
The main PCB controls the EEV kit when the power is turn on.
The independent sub PCB controls the EEV kit when the power is turn off.
3 phase
400V
ODU
1 phase
220V
...
" If the power Cut-off, then product need to close EEV."
4th
Switch BOX
3rd
Main
A/C
Switch
Switch
Switch BOX
3rd
Main A/C
Switch Switch
independent power module (option)
power
Plug
2nd
1st
Each room
independent power module (option)
power
Plug
2nd
1st
Each room
New Function
Concept of independent
power module
Installation Manual 117