LG ARUM080LTE5 Engineering Product Data Book page 728

Multi V 5
7. Refrigerant piping system
■ Y branch, Header and HR unit connection pattern
Pattern 1
HR1
1
48k 48k
• Impossible installation : Head branch pipe
Pattern 3
• The maximum total capacity of indoor
units is 67.4kW(230 kBtu/h).
Pattern 5
A
Note
• If the large capacity(76kBtu/h and 96kBtu/h unit) indoor units are installed, two neighboring outlets of one HR
unit are linked by Y branch pipe and connected to one indoor unit.
B
HR2
2 3 4
48k 48k
HR unit
HR1
1 2 3 4
54k 54k 54k 54k
HR1 HR2
1 2 3 4
48k 48k 48k 48k
Pattern 2
HR1
B
1
2 3 4
7k 7k 7k 7k
• Impossible installation : HR unit
pipe Y and Head branch pipe.
Pattern 4
1
15k
• The maximum total capacity of a branch
pipe of HR unit is 17.5kW(60 kBtu/h).
Pattern 6
HR1
A
B
1 2 3
Installation of Outdoor Units
A
5 6 7
7k 24k 24k
Head branch
HR1
B
2 3 4
15k 15k 15k
A
A
4 5
17