ENGLISH-30
Refrigerant pipe installation
HR (AM072/096/120/144HXWA
✴
)
(A)
(B)
(D)
(E)
(C)
(3)
(2)
(1)
(F)
8 Ton
8 Ton
16 Ton
Ex.) 32 Ton
Outdoor unit
capacity (Ton)
No.
Pipe size (O.D)
Liquid pipe
Low pressure
gas pipe
High pressure
gas pipe
mm
inch
mm
inch
mm
inch
8
(1)
9.52
3/8
22.22
7/8
19.05
3/4
16
(2)
15.88
5/8
28.58
1 1/8
28.58
1 1/8
32
(3)
19.05
3/4
41.28
1 5/8
34.92
1 3/8
The pipe that connects between outdoor unit (1)(2) and the main pipe (3)
Select the size of the pipe according to the below table.
Outdoor unit
capacity
When the pipe length is shorter than 90 m (295.3 ft)
Note1)
When the pipe length is 90 m (295.3 ft) or longer
Note1)
Liquid pipe
Low pressure
gas pipe
High pressure
gas pipe
Liquid pipe
Low pressure gas
pipe
High pressure
gas pipe
Ton
MBH
kW
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
6
72
22.1
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
48
576
168.8
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
Note 1) When the pipe length between the outdoor unit and the last indoor unit is 90 m (295.3 ft) or longer, increase the size
of the main pipe (3) by one grade.
❋
For HR model, only increase the size of the liquid pipe If pipe length exceeds 90 m (295.3 ft)
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