LG MULTI V S ARUV060GSD0 - Refrigerant Piping System

PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
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ENGLISH
Y branch method
Example : 5 Indoor Units connected
Ⓐ : Outdoor Unit
Ⓑ : 1st branch (Y branch)
Ⓒ : Indoor Units
L150m
H 50m
l 40m
Refrigerant piping system
• * : Assume equivalent pipe length of Y branch to be 0.5m, that of header to be 1m, calcu-
lation purpose
Outdoor unit capacity (HP) 2.5 3456
T
Total pipe length (m)
50 80 85 100 100
A+B+C+a+b+c+d+e
L
Longest pipe length (m) (Equivalent pipe length)
30 40 50 50 50
A+B+C+D+e
l
Longest pipe length after 1st branch (m)
20 30 30 30 30
B+C+D+e
H
Difference in height (m) (Outdoor Unit ÷ Indoor Unit)
15 15 15 15 15
H
h
Difference in height (m) (Indoor Unit ÷ Indoor Unit)
7.5 7.5 7.5 7.5 7.5
h