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
3
4
5
6
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
1,MFL67798026,영영 19. 3. 14. 영영 4:48 Page 31