LG ARUV025GSD0 Engineering Product Data Book page 48

7. Refrigerant Piping System
Combination of Y branch/header method
Example : 5 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Y branch
Ⓓ : Indoor Unit
Ⓔ : Header
Ⓕ : Sealed piping
Outdoor unit capacity (HP)
Total pipe length (m)
T
A+B+C+a+b+c+d+e
Longest pipe length (m) (Equivalent pipe length)
L
A+B+b
Longest pipe length after 1st branch (m)
B+b
Difference in height (m) (Outdoor Unit ÷ Indoor Unit)
H
H
Difference in height (m) (Indoor Unit ÷ Indoor Unit)
h
h
L
Branch pipe can not be used after header
2.5
50
30
20
15
7.5
R410A(50/60Hz)
3 4
80 85
40 50
30 30
15 15
7.5 7.5
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