LG MULTI V PLUS ARUV Series Installation Manual page 31

Refrigerant piping system
Y branch method
Example : 5 indoor units connected
: Outdoor unit
: 1st branch (Y branch)
: Indoor units
Example : 5 indoor units connected
: Outdoor unit
: 1st branch (Y branch)
: indoor units
: Connection branch pipe
between outdoor units:
ARCNN30
: Connection branch pipe
between outdoor units:
ARCNN20
CAUTION
Piping length from outdoor branch to outdoor unit ≤10m, equivalent length:max 13m
(for 16HP or more)
Refrigerant piping installation
10m or
less
L150m
l 40m
L150m
l 40m
Installation Manual 31