LG MULTI V PLUS ARUV Series Installation Manual page 34

Refrigerant piping installation
Combination of Y branch/header method
Example : 5 indoor units connected
: Outdoor unit
: 1st branch (Y branch)
: Y branch
: Indoor unit
: Header
: Sealed piping
Example : 5 indoor units connected
: Outdoor unit
: 1st branch
: Y branch
: Indoor unit
: Connection branch pipe
between outdoor units:
ARCNN30
: Connection branch pipe
between outdoor units:
ARCNN20
: Header
: Sealed piping
34 Outdoor Unit
Branch pipe can not be used after header
10m or
less
Branch pipe can not be used after header
L150m
40m
L150m
40m