LG MULTI V IV ARUB080BTE4 Installation Manual page 17

Pattern 2
HR1
A
B
1
2 3 4 5
7k 7k 7k 7k 7k
• Impossible installation : HR unit Head branch
pipe Y and Head branch pipe.
Pattern 3
HR1
1 2
48k 48k 48k
• The maximum total capacity of indoor
units is 56.4kW(192 kBtu/h).
Pattern 4
HR1
B
1 2 3
12k 12k 12k
• The maximum total capacity of a branch
pipe of HR unit is 14.1kW(48 kBtu/h).
Pattern 5
A
HR1
1 2
48k 48k
Pattern 6
HR1
A
A
B
1 2 3
24k 24k
12k 12k
6 7
24k 24k
3 4
48k
4
12k
HR2
3 4
48k 48k
A
4 5
24k
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
Outdoor
High pressure Gas pipe
Unit
Liquid pipe
• 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)
Keep the 40m distance from the first branch to the farthest indoor.
1) under 40m
Indoor Indoor
Y branch
Unit Unit
Keep the sum of indoor capacity under 56.4kW(192 kBtu/h).
1) under 40m
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
17
*
*
8
24k