LG multi V ARWB Series Installation Manual page 18

18
Pattern 3
• The maximum total capacity of indoor
units is 56.4kW(192 kBtu/h).
Pattern 4
1
12k
• The maximum total capacity of a branch
pipe of HR unit is 14.1kW(48 kBtu/h).
Pattern 5
A
1
48k
Pattern 6
HR1
A
B
1 2
24k 24k
HR1
1 2 3 4
48k 48k 48k 48k
HR1
B
2 3 4
12k 12k 12k
HR1 HR2
2 3 4
48k 48k 48k
A
A
3 4 5
24k
12k 12k
Pattern 7
A
HR1
1 2
48k 48k
• * : Serial connection of HR units : Capacity sum of indoor units ≤ 192 kBtu/h
Pattern 8
A
HR1
1 2
48k 48k
• * : Maximum indoor units per a branch are 8 indoor units
Indoor Unit Y Branch pipe
1
Low pressure Gas pipe
Outside
High pressure Gas pipe
Unit
Liquid pipe
• Pipe installation from outside 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)
Keep the 40m distance from the first branch to the farthest indoor.
1) under 40m(131ft)
Indoor Indoor
Y branch
Unit Unit
Keep the sum of indoor capacity under 56.4kW(192 kBtu/h).
1) under 40m(131ft)
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
Keep the sum of indoor capacity under 56.4kW(192 kBtu/h).
HR2 HR3
3 4 5 6
48k 48k 48k 48k
HR2
A
B
3 4 5 6 7
12k 12k 12k 12k 24k
Head Branch pipe
B
A
Gas pipe
Indoor
HR1
Unit
Liquid pipe
Indoor Indoor
Unit Unit
Indoor Indoor Indoor Indoor
Unit Unit Unit Unit
*
*
8
24k