Leak Test And Vacuum Drying - LG multi V ARUV160DTS4 Installation Manual

Table of Contents

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• 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
1 0
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
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
1 0
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
Header
Models
ID12.7
4 branch
ARBL054
ID15.88
7 branch
ID12.7
ARBL057
ID15.88
ID12.7
4 branch
ID15.88
ARBL104
I.D6.35
7 branch
ID12.7
ARBL107
ID15.88
74
10 branch
ID12.7
I
D .
6
3 .
5
ID15.88
ARBL1010
74
10 branch
ID12.7
ID15.88
I.D12.7
ARBL2010
2
83
3
2

Leak Test and Vacuum drying

I.D15.88
2
Leak test
I.D12.7
96
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-
3
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
I.D6.35
with the service valves closed. Be also sure to pressurize liquid pipe,
gas pipe and high/low pressure common pipe)
The test result can be judged good if the pressure has not be reduced
after leaving for about one day after completion of nitrogen gas pres-
surization.
96
3
Slave 1 outdoor unit
I.D6.35
Nitrogen gas
cylinder
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 outdoor unit
Close
Close
Close
Close
19
[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
Gas side

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