LG Multi V ARUB Series Installation Manual page 67

2. Settings of sub outdoor unit
1) The sequence of sub unit : 1
1 2 3
ON
OFF
2) The sequence of sub unit : 2
1 2 3
ON
OFF
3) The sequence of sub unit : 3
1 2 3
ON
OFF
4) Backup operation 1 : In case of constant speed compressor 1 damaged.
1 2 3
ON
OFF
5) Backup operation 2 : In case of constant speed compressor 2 damaged.
1 2 3
ON
OFF
6) Backup operation 3 : In case of both compressors damaged.
1 2 3
ON
OFF
st
sub unit
4 5 6 7 8
nd sub unit
4 5 6 7 8
rd sub unit
4 5 6 7 8
4 5 6 7 8
4 5 6 7 8
4 5 6 7 8
Main unit and Sub unit PCB
st
At the 1 sub unit, set dip switch
as the left side.
Setting before applying the power.
nd
At the 2 sub unit, set dip switch
as the left side.
Setting before applying the power.
rd
At the 3 sub unit, set dip switch
as the left side.
Setting before applying the power.
Setting before applying the power
Set at the unit of the inverter(constant
speed comp.1) failure
In case of inverter failure, backup
operation is possible when 110k or more
indoor units are ON.
Setting before applying the power
Set at the unit of the constant speed
comp.2 failure.
Setting before applying the power
Set at the disabled unit.
Installation Manual 67