LG multi v Installation Manual page 38

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
38
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)
A
HR1
1 2
48k 48k
A
HR1
1 2
48k 48k
Y Branch pipe
A
Gas pipe
HR1
Liquid pipe Liquid pipe
HR2
3 4 5
48k 48k 48k
HR2
B
3 4 5 6
12k 12k 12k 12k
B Head Branch pipe
Indoor
Unit
*
HR3
6
48k
*
A
7 8
24k 24k