PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT
33
ENGLISH
Header Method
Example : 6 Indoor Units connected
Ⓐ
: Outdoor Unit
Ⓑ
: Header
Ⓒ
: Indoor Units
Ⓓ
: Sealed piping
L 150m
H 50m
40m
• * : Assume equivalent piping length of Y branch to be 0.5m, that of header to be 1m, calcu-
lation purpose
• Indoor Unit should be installed at lower position than the header.
WARNING
Pipe length after header branching (a~f)
It is recommended that difference in length of the pipes connected to the Indoor Units is
minimized. Performance difference between Indoor Units may occur.
!
Total pipe length = A+a+b+c+d+e+f
≤
300m
L
Longest pipe length
Equivalent pipe length(*)
A+f
≤
150m
A+f
≤
175m
l
Longest pipe length after 1st branch
f
≤
40m
H
Difference in height (Outdoor Unit
÷
Indoor Unit)
H
≤
50m (40m : Outdoor Unit is lower than Indoor Units)
h
Difference in height (Indoor Unit
÷
Indoor Unit)
h
≤
15m
1,MFL67798018,영영 2018. 6. 15. 영영 2:28 Page 33