Branch Pipe Fitting - LG Multi V IV PRHR041 Installation Manual
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Also See for Multi V IV PRHR041:
- Service manual (12 pages) ,
- Installation manual (15 pages)
Table of Contents
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Branch pipe Fitting
Y branch
A
• Ensure that the branch pipes are attached horizontally or vertically
(see the diagram below.)
Horizontal
plane
A
Viewed from point A
in direction of arrow
• There is no limitation on the joint mounting configuration.
• If the diameter of the refrigerant piping selected by the procedures
described is different from the size of the joint, the connecting sec-
tion should be cut with a pipe cutter.
• Branch pipe should be insulated with the insulator in each kit.
Liquid and gas
Insulator
pipe joints
(included with kit)
Header
A
B
C
• When the number of indoor units to be connected to the branch
pipes is less than the number of branch pipes available for connec-
tion then cap pipes should be fitted to the surplus branches.
B
• Fit branch pipe lie in a horizontal plane.
Horizontal plane
View from point B in the direction of the arrow
Ⓐ To Branch Piping or Indoor Unit
B
Ⓑ To Outdoor Unit
Facing
Facing
downwards
upwards
Within +/- 10°
Within ±3°
Within ±3°
Tape
(field supply)
Insulator for
field piping
Ⓐ To Outdoor Unit
Ⓑ To Indoor Unit
• The indoor unit having larger ca-
pacity must be installed closer
to Ⓐ than smaller one.
• If the diameter of the refrigerant
piping selected by the proce-
dures described is different
from the size of the joint, the
connecting section should be
cut with a pipe cutter.
ⓒ Pipe cutter
• When the number of pipes to be
connected is smaller than the
number of header branches, in-
stall a cap to the unconnected
branches.
Pinched pipe
• Header should be insulated with the insulator in each kit.
• Joints between branch and pipe should be sealed with the tape in-
cluded in each kit.
Tape
Insulator
Insulator of field pipe
• Any cap pipe should be insulated using the insulator provided with
each kit and then taped as described above.
Insulator for cap pipe
Cap pipe
Y branch pipe
Models
Gas pipe
I.D12.7
I.D12.7
I.D15.88
ARBLN
I.D12.7
01621
281
292
I.D19.05
O.D15.88
70
70
I.D22.2
I.D19.05
I.D15.88
I.D19.05
1
I.D19.05
I.D25.4
I.D15.88
ARBLN
390
03321
413
I.D22.2
I.D28.58 O.D25.4
O.D19.0 5
O.D19.0 5
3
1
2
70
80
I.D19.05
I
D .
2
8
5 .
8
I
D .
2
2
2 .
1
I.D15.88
I.D31.8
I.D19.05
ARBLN
376
07121
40 4
I.D28.58
I.D31.8
I.D34.9 O.D31. 8
O.D19.0 5
2
1
3
O.D22.2
120
90
120
90
I.D34.9
I.D38.1
I.D41.3
I.D34.9
I.D28.58
I.D38.1
I.D34.9
ARBLN
471
517
14521
I.D19.05 I.D15.88
I.D41. 3
O.D38.1
O.D34.9
3
2
3
O.D22.2
120
90
I.D12.7
O.D28.58
3
2
O.D15.88
I.D.44.48
I.D.53.98
I.D41.3
I.D38.1
1
I.D.44.48
I.D.44.48
I.D41.3
420
ARBLN
490
23220
I.D.34.9
I.D31.8
I.D.53.98
I.D.28.58
O.D.44.48
O.D.38.1
O.D.28.58
2
3
X2
X2
2
3
175
100
I.D12.7
I.D.19.05
3
3
O.D15.88
O.D.22.2
70
120
Insulate the header using
the insulation
material attached to the
branch pipe kit
as shown in the figure.
Tape
[unit:mm]
Liquid pipe
I.D.6.35
I.D9.52
I.D15.88
I.D9.52
1
I.D.6.35
I.D15.88
74
I.D.9.52
281
292
1
O.D9.52
I.D12.7
70
I.D12.7
I.D12.7
2
I
D .
9
5 .
2
I.D9.52
83
I.D12.7
I.D12.7
I.D12.7
I.D9.52
I.D6.35
3
321
I.D22.2
I.D25.4
332
11 0
I D1905
I.D19.05
I.D15.88
I.D12.7
I.D15.88
I.D15.88
2
I.D12.7
96
I.D19.05
I.D15.88 I.D19.05
I.D12.7
371
3
394
I.D22.2
. O
1 D
2
7 .
I
D .
9
5 .
2
I.D6.35
O.D12. 7
I
D .
9
5 .
I.D28.58
3
2
120
11 0
70
120
I.D19.05
I.D28.58
I.D15.88
I.D19.05
I.D22.2
2
1
I.D15.88
I.D22.2
I.D19.05
125
I.D22.2
416
3
444
I.D38.1
I.D12.7
O.D19.0 5
I.D9.52
I.D41.3
O.D15.88
I.D9.52
I.D22.2
O.D12. 7
130
2
3
3
I.D22.2
11 0
11 0
I.D19.05
80
I.D.25.4
I.D25.4
I.D22.2
I.D.22.2
I.D.19.05
2
2
134
I.D38.1
I.D.25.4
I.D.22.2
I.D.19.05
3
346
379
I.D.25.4
I.D.22.2
3
I.D.15.88
I.D9.52
O.D.19.05
I.D.12.7
O.D12.7
115
I.D.15.88
2
3
X2
3
110
110
I.D6.35
74
I
D .
6
3 .
5
74
I.D12.7
2
83
3
2
I.D15.88
2
I.D12.7
96
3
I.D6.35
96
3
I.D6.35
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