LG MULTI V 5 ARUM120LTE5 - Page 22

22
ENGLISH
Refrigerant pipe diameter from outdoor unit to first
branch. (A)
Y branch, Header and HR unit connection pattern
* If available on site, select pipe size according to upper table.
Otherwise it doesn’t need to be increased
Pattern 1
HR1
48 k 48 k
1 2
HR2
48 k 48 k
3 4
B
• Impossible installation : Head branch pipe HR unit
Pattern 2
HR1
1
234567
7 k 7 k 7 k 7 k 7 k 24 k 24 k
• Impossible installation : HR unit Head branch
pipe Y and Head branch pipe.
B
A
ODU.
Capacity
(hp)
Standard Pipe Diameter
Pipe diameter when pipe length is ≥
90 m (295 ft) or when height differential
(ODU÷IDU) is > 50 m (164 ft)
Liquid Pipe
mm (inch)
Low pressure
gas pipe
mm (inch)
High pressure
gas pipe
mm (inch)
Liquid Pipe
mm (inch)
Low pressure
gas pipe
mm (inch)
High pressure
gas pipe
mm (inch)
8 Ø 9.52 (3/8) Ø 19.05 (3/4) Ø 15.88 (5/8) Ø 12.7 (1/2) Not increased Not increased
10 Ø 9.52 (3/8) Ø 22.2 (7/8) Ø 19.05 (3/4) Ø 12.7 (1/2) Not increased Not increased
12 Ø 12.7 (1/2) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Ø 15.88 (5/8) Not increased Not increased
14~16 Ø 12.7 (1/2) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Ø 15.88 (5/8) Not increased Not increased
18~20 Ø 15.88 (5/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Ø 19.05 (3/4) Not increased Not increased
22 Ø 15.88 (5/8) Ø 28.58 (1-1/8) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Not increased Not increased
24 Ø 15.88 (5/8) Ø 34.9 (1-3/8) Ø 28.58 (1-1/8) Ø 19.05 (3/4) Not increased Not increased
26~34 Ø 19.05 (3/4) Ø 34.9 (1-3/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Not increased Not increased
36 Ø 19.05 (3/4) Ø 41.3 (1-5/8) Ø 28.58 (1-1/8) Ø 22.2 (7/8) Not increased Not increased
38~60 Ø 19.05 (3/4) Ø 41.3 (1-5/8) Ø 34.9 (1-3/8) Ø 22.2 (7/8) Not increased Not increased
62~64 Ø 22.2 (7/8) Ø 44.5 (1-3/4) Ø 41.3 (1-5/8) Ø 25.4 (1) Not increased Not increased
66~96 Ø 22.2 (7/8) Ø 53.98 (2-1/8) Ø 44.5 (1-3/4) Ø 25.4 (1) Not increased Not increased
Pattern 3
HR1
48 k 48 k 48 k 48 k
1 2 3 4
• The maximum total capacity of indoor
units is 56.4kW(192 kBtu/h).
Pattern 4
12 k 12 k 12 k 12 k
1 2 3 4
• The maximum total capacity of a branch
pipe of HR unit is 14.1kW(48 kBtu/h).
HR1
B
Pattern 5
HR1
48 k 48 k
A
1 2
HR2
48 k 48 k
3 4
HR1
24 k 24 k 24 k
12 k 12 k
B
Pattern 6
A
A
A
12 345