LG multi V ARUB160BT3 Instruction Manual page 38

Refrigerant piping system
Pattern 7
• * : Serial connection of HR units : Capacity sum of indoor units ≤ 192 kBtu/h
Pattern 8
• * : Maximum indoor units per a branch are 8 indoor units
1 Indoor Unit
Low pressure Gas pipe
Outdoor
High pressure Gas pipe
Unit
• Pipe installation from outdoor units to HR units
: 3 pipes(Low pressure Gas pipe, High pressure Gas pipe, Liquid pipe)
• Pipe installation from HR units to indoor units
: 2 pipes(Gas pipe, Liquid pipe)
38 Outdoor Unit
A
HR1
1
48k
A
HR1
1
48k
Y Branch pipe
A
HR1
Liquid pipe
HR2
3
48k
2
48k
HR2
2
3 4
48k
12k 12k
B
Gas pipe
Indoor
Unit
Liquid pipe
HR3
4 5 6
48k 48k 48k
A
B
5 6 7
12k 12k 24k
Head Branch pipe
*
*
8
24k