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30
Refrigerant pipe installation
H/R
(A)
(B)
16Ton
12Ton
(D)
(E)
(F)
(C)
(3)
(2)
(1)
6Ton
Ex.) 34 Ton
Ton
No.
Pipe size (O.D)
Liquid
Gas
High pressure Gas
mm
inch
mm
inch
mm
inch
10
(1)
15.88
5/8
28.58
1 1/8
28.58
1 1/8
28
(2)
19.05
3/4
34.92
1 3/8
28.58
1 1/8
34
(3)
19.05
3/4
41.28
1 5/8
34.92
1 3/8
Size of the pipe connected to the outdoor unit (A)
Select the size of the pipe according to the below table.
Outdoor unit
capacity
Main pipe length within 90m (295.3ft)
Size up(Main pipe length over 90m (295.3ft))
Ton MBH
KW
Liquid
Gas
High pressure
Gas
Liquid
Gas
High pressure
Gas
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
6
72
21.1
9.52
3/8
19.05
3/4
15.88
5/8
12.7
1/2
19.05
3/4
15.88
5/8
8
96
28.1
9.52
3/8
22.22
7/8
19.05
3/4
12.7
1/2
22.22
7/8
19.05
3/4
10
120 35.2
12.7
1/2
28.58
1 1/8
22.22
7/8
15.88
5/8
28.58
1 1/8
22.22
7/8
12
144 42.2
12.7
1/2
28.58
1 1/8
22.22
7/8
15.88
5/8
28.58
1 1/8
22.22
7/8
14
168 49.2
15.88
5/8
28.58
1 1/8
22.22
7/8
19.05
3/4
28.58
1 1/8
22.22
7/8
16
192 56.3
15.88
5/8
28.58
1 1/8
28.58
1 1/8
19.05
3/4
28.58
1 1/8
28.58
1 1/8
18
216 63.3
15.88
5/8
28.58
1 1/8
28.58
1 1/8
19.05
3/4
28.58
1 1/8
28.58
1 1/8
20
240 70.3
15.88
5/8
28.58
1 1/8
28.58
1 1/8
19.05
3/4
28.58
1 1/8
28.58
1 1/8
22
264 77.4
19.05
3/4
34.92
1 3/8
28.58
1 1/8
22.22
7/8
34.92
1 3/8
28.58
1 1/8
24
288 84.4
19.05
3/4
34.92
1 3/8
28.58
1 1/8
22.22
7/8
34.92
1 3/8
28.58
1 1/8
26
312 91.4
19.05
3/4
34.92
1 3/8
28.58
1 1/8
22.22
7/8
34.92
1 3/8
28.58
1 1/8
28
336 98.4
19.05
3/4
34.92
1 3/8
28.58
1 1/8
22.22
7/8
34.92
1 3/8
28.58
1 1/8
30
360 105.5 19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
32
384 112.5 19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
34
408 119.5 19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
36
432 126.6 19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
38
456
133.6
19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
40
480
140.7
19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
42
504
147.7
19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
44
528
154.7
19.05
3/4
41.28
1 5/8
34.92
1 3/8
22.22
7/8
41.28
1 5/8
34.92
1 3/8
❋
For HR model, only increase the size of the liquid pipe If pipe length exceeds 90m
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