16
ENGLISH
- When the number of indoor units to be connected to the branch
pipes is less than the number of branch pipes available for connection
then cap pipes should be fitted to the surplus branches.
- Fit branch pipe lie in a horizontal plane.
Pinched pipe
B
Horizontal plane
View from point B in the direction of the arrow
Y branch
Header
A
B
Facing
upwards
Facing
downwards
Within ±3°
Within ±3°
Viewed from point A
in direction of arrow
Horizontal
plane
Within ±10°
A
A
B
C
Ⓐ
To Branch Piping or Indoor Unit
Ⓑ
To Outdoor Unit
- Ensure that the branch pipes are attached horizontally or vertically
(see the diagram below.)
Ⓐ
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 connect-
ing 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.
Branch pipe Fitting
- 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.
- Any cap pipe should be insulated using the insulator provided with
each kit and then taped as described above.
h
For example. Indicated Ø9.52 is the outer diameter(O.D..) of field
jointed piping
Insulate the header using
the insulation
material attached to the
branch pipe kit
as shown in the figure.
Insulator
Insulator of field pipe
Tape
Tape
Cap pipe
Insulator for cap pipe
Y Branch
Models
Gas pipe
Liquid pipe
ARBLN
01621
I.D19.0 5
O.D15.88
I.D12. 7
I.D15.88
I.D12. 7
I.D15.88
I.D15.88
I.D12. 7
292
281
74
70
I.D12. 7
O.D9.52
I.D6.35
I.D9.52
I.D.9.52
I.D.6.35
I.D9.52
I.D.6.35
292
281
74
70
1
1
ARBLN
03321
I.D25.4
413
390
83
I.D15.88
I.D19.0 5
I.D12. 7
I.D12. 7
I.D19.0 5
I.D15.88
I.D19.0 5
I.D22.2
I.D28.58
O.D25.4
I.D22.2
O.D19.0 5
O.D19.0 5
I.D22.2
I.D25.4
70
80
11 0
1
2
3
3
1
2
I.D9.52
I.D12. 7
5
3
.
6
D
.
I
2
5
.
9
D
.
I
I.D9.52
I.D12. 7
I.D6.35
I.D12. 7
332
321
74
ARBLN
07121
376
404
96
I.D34.9
O.D31. 8
I.D22.2
O.D22.2
I.D28.58
I.D31. 8
O.D19.0 5
I.D28.58
120
90
120
I.D31. 8
2
.
2
2
D
.
I
8
5
.
8
2
D
.
I
I.D19.0 5
I.D15.88
I.D12. 7
I.D19.0 5
I.D15.88
2
3
1
2
1
3
2
5
.
9
D
.
I
2
5
.
9
D
.
I
7
.
2
1
D
.
O
I.D15.88 I.D19.0 5
I.D12. 7
I.D12. 7
I.D19.0 5
I.D15.88
I.D12. 7
I.D19.0 5
O.D12. 7
I.D6.35
I.D15.88
371
394
83
11 0
70
2
3
3
2
ARBLN
14521
471
517
125
120
130
I.D19.0 5
I.D15.88
I.D12. 7
I.D19.0 5
I.D22.2
I.D41. 3
I.D38.1
I.D41. 3
O.D34.9
I.D34.9
I.D34.9
I.D22.2
I.D28.58
I.D28.58
I.D38.1
I.D41. 3
I.D34.9
I.D38.1
O.D22.2
O.D38.1
O.D15.88
O.D28.58
90
2
3
3
3
2
2
3
416
444
96
O.D15.88
I.D9.52
I.D12. 7
O.D12. 7
I.D6.35
I.D9.52
I.D15.88
I.D19.0 5
I.D22.2
I.D22.2
I.D19.0 5
I.D15.88
I.D12. 7
I.D15.88
I.D19.05
I.D22.2
O.D19.0 5
80
11 0
11 0
2
3
1
2
3
3
[unit:mm]
Selection of Y Branch and Header
Содержание ARUN40GS2A
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