LG Multi V Plus II System - Connection of Outdoor Units

26 Outdoor Unit
Refrigerant piping installation
2 outdoor units
Connection of Outdoor units
3 Outdoor Units
Don't cut the pipe less
than 70mm
Main outdoor
gas pipe
Main pipe
Blow nitrogen
while brazing
Ø 31.8
Ø 28.58
Sub1 outdoor unit
Main outdoor unit
Ø 12.7
Ø 9.52
Ø 12.7
Ø 12.7
Ø 28.58
Ø 19.05
Ø 22.2
Ø 28.58
Ø 15.88
Ø 19.05
Ø 12.7
Ø 19.05
Ø 12.7
Ø 15.88
Ø 22.2 Ø 19.05
Main outdoor
liquid pipe
Main pipe
Main pipe
Ø 12.7
Ø 9.52
Ø 12.7
Ø 19.05 Ø 12.7
Ø 15.88
Ø 34.9
Sub1 outdoor
gas pipe
Ø 31.8
Ø 28.58
Ø 28.58
Ø 19.05
Ø 22.2
Ø 28.58
Main pipe
Ø 34.9
OD28.58
Ø19.05
Ø22.2
OD34.9
Ø38.1
Ø15.88
OD19.05
Don't cut the pipe less
than 70mm
Blow nitrogen
while brazing
Main outdoor
gas pipe
Ø 38.1
Ø 34.9
Ø 34.9
Ø 28.58
Ø 28.58
Ø 41.3
Don't cut the pipe less
than 70mm
Blow nitrogen
while brazing
OD28.58
Ø19.05
Ø22.2
Ø38.1
OD34.9
Ø15.88
OD19.05
OD12.7
Ø9.52
Ø22.2
OD19.05
OD28.58
Ø19.05
Ø22.2
Ø22.2
OD19.05
Ø9.52
OD12.7
Ø9.52
OD12.7
Connection of gas pipe Connection of liquid pipe
Connection of gas pipe
Connection of liquid pipe
Connection of gas pipe
Connection of liquid pipe
Model
ARCNN20
Model
ARCNN20
Model
ARCNN30
Y branch
A
B
To outdoor unit
To branch piping or indoor unit
A
B
Facing
upwards
Facing
downwards
Within ± 3° Within ± 3°
Viewed from point A
in direction of arrow
Within +/- 10°