LG GP-W500B6C, Руководство по установке

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REFRIGERANT PIPING
ENGLISH
25
REFRIGERANT PIPING
To meet the below requirements to make 40m above~90m or under of pipe length after the first
branch.
Requirements Examples
1
The diameter of the pipes
between the first branch and the
last branch should be one size big-
ger than normal.
It is not necessary to do so if the
diameter is identical with the one
of the main pipe.
40 m < B+C+D+e
≤
90 m
→
B, C, D diameter change
Ø6.35
→
Ø9.52, Ø9.52
→
Ø12.7,
Ø12.7
→
Ø15.88, Ø15.88
→
Ø19.05,
Ø19.05
→
Ø22.2, Ø22.2
→
Ø25.4,
Ø25.4
→
Ø28.58, Ø28.58
→
Ø31.8,
Ø31.8
→
Ø34.9, Ø34.9
→
Ø38.1
2
[Length of the pipe from outdoor
unit to the farthest indoor unit] -
[Length of the pipe from outdoor
unit to the closest indoor unit]
≤
40 m
(A+B+C+D+e)-(A+a)
≤
40 m
3
The length of the pipes described
above should be doubled when
calculating the total length of the
refrigerant piping.
A+Bx2+Cx2+Dx2
+a+b+c+d+e
≤
640 m
4
The length from each indoor unit to
the closest branch piping
≤
40 m
a,b,c,d,e
≤
40m
CAUTION
• If overall equivalent pipe length is more than 90m from outdoor unit to the farthest indoor
unit, the diameter of the main pipe must be increased.
• After first branch, If the diameter of the pipe(B) is greater than the diameter of the main
pipe(A), the diameter of the pipe(B) is the same size as the diameter of the main pipe(A) to
the installation.
!
Y Piping Precautions
• When the diameter of piping (B) (which is connected behind the first branch) is bigger
than the diameter of main piping (A), install B in the same way as A.
WARNING
!
Precautions during header branch piping
• It is recommended that the difference between the piping length(a~f) connected to the
indoor unit and the piping length after header branch be minimized.
• Performance difference between indoor units may occur.
• The Y branch and header branch cannot be used after header branch.
WARNING
!
l 40m (Conditional 90m)
L170m (Equivalent Length 200m)
E