Leak Test And Vacuum Drying - LG ARWB200LAS4 Installation Manual

22
- 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 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 I
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
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
Header
Models
ID12.7
4 branch
ARBL054 ID15.88
7 branch
ID12.7
ARBL057
ID15.88
ID12.7
4 branch
ID15.88
ARBL104
7 branch
ID12.7
ARBL107
ID15.88
10 branch ID12.7
ID15.88
ARBL1010
10 branch ID12.7
I.D6.35
ID15.88
ARBL2010
74

Leak Test and Vacuum drying

D . 6 3 . 5
Leak test
74
Leak test should be made by pressurizing nitrogen gas to 3.8
2
MPa(38.7kgf/cm ). If the pressure does not drop for 24 hours, the sys-
tem passes the test. If the pressure drops, check where the nitrogen
leaks. For the test method, refer to the following figure. (Make a test
with the service valves closed. Be also sure to pressurize liquid pipe,
I.D12.7
2
gas pipe and high/low pressure common pipe)
83
The test result can be judged good if the pressure has not be reduced
3
after leaving for about one day after completion of nitrogen gas pres-
surization.
2
Slave 1 outside unit
I.D15.88
2
I.D12.7
96
3
Nitrogen
gas
cylinder
I.D6.35
Nitrogen
gas
cylinder
96
3
I.D6.35
Gas pipe Liquid pipe
360
120
ID12.7
ID6.35
ID15.88
150
120 ID9.52
ID15.88
ID19.05
ID15.88
ID19.05
540
120
ID12.7
ID15.88 150
120
ID15.88
ID19.05
400
160
ID15.88
ID6.35
ID19.05
150
120
ID9.52
ID22.2
ID28.58 ID25.4
580
160
ID15.88
ID6.35
150
ID19.05
ID9.52
120
ID28.58 ID25.4 ID22.2
760
160
ID15.88
ID12.7
150
ID19.05
120
ID15.88
ID28.58 ID25.4 ID22.2
775
182
ID15.88
ID6.35
ID19.05 150
120 ID9.52
ID31.8 ID34.9 ID28.58
Master outside unit
Close
Close
Close
Close
Close
Close
[unit:mm]
360
120
ID6.35
ID9.52
150
120
ID12.7 ID9.52
ID12.7 ID9.52
540
120
ID6.35
ID9.52
120 150
ID9.52
ID12.7
360
120
ID6.35
ID9.52
150
120
ID9.52
ID12.7
700
120
ID6.35
150
ID9.52
120
ID12.7 ID9.52
760
160
ID15.88
150
ID19.05
120
ID28.58 ID25.4 ID22.2
700
60*9=540 107
ID6.35
150
120
ID15.88 ID19.05
ID9.52
Liquid side
Indoor unit
HR unit
Gas side