Mitsubishi Heavy Industries SRRM40HENG-L, Handbook, Page: 891 / 1106

FDC-HKX
889
¡
Branch pipe set shapes
(2) Table for selection of piping size
FDC 140 type
Model
Item
Outdoor unit
Main piping
No. 1 branch
Less than 101
101 to less than 180
180 or more
Gas line Liquid line Branch used
φ
19.05
φ
19.05
φ
19.05
φ
15.88
φ
19.05
φ
9.52
φ
9.52
φ
9.52
φ
9.52
DIS-2KX20-E
DIS-2KX10-E
DIS-2KX20-E
FDC 224 type
Gas line Liquid line Branch used
φ
25.4
φ
25.4
φ
25.4
φ
15.88
φ
19.05
φ
25.4
φ
12.7
φ
12.7
φ
12.7
φ
9.52
φ
12.7
DIS-2KX30-E
DIS-2KX10-E
DIS-2KX20-E
DIS-2KX30-E
DIS-2KX30-E
DIS-2KX10-E
DIS-2KX20-E
DIS-2KX30-E
FDC 280 type
Gas line Liquid line Branch used
φ
28.58
φ
28.58
φ
28.58
φ
15.88
φ
19.05
φ
25.4
φ
12.7
φ
12.7
φ
12.7
φ
9.52
φ
12.7
Model Item Mark Branch pipe Item Mark Reducer
DIS-2KX30-E
DIS-2KX20-E
DIS-2KX10-E
Gas line
Liquid line
Gas line
Liquid line
Gas line
Liquid line
Gas line
Liquid line
Gas line
Liquid line
Gas line
Liquid line
1
2
3
4
7
8
Notes
Notes
(1) If adjustment is required between the branch connection and the unit port, always make the adjustment on the branch connection side.
(2) The selection of piping size and branch piping, total all the indoor unit down flow capacity for that piping and branch piping.
(1)The gas side flow divider pipe is insulated.
(2)Cut piping in the center on site in the area it will be used.
Total indoor unit
down-flow capac-
ity after the sec-
ond branch.
5
6
70
ID
25.4 OD
19.05
70
ID
28.58
OD
25.4
424
94.5
ø
15.88
ø
12.7
ø
15.88
370
87
ø
9.52
ø
6.35
ø
9.52
370
87
ø
9.52
ø
6.35
ø
9.52
424
94.5
ø
12.7
ø
15.88
ø
12.7
ø
15.88
ø
19.05
ø
19.05
519
118
ø
15.88
ø
19.05
ø
12.7
ø
15.88
ø
19.05
ø
25.4
ø
25.4
ø
28.58
370
87
ø
9.52
ø
12.7
ø
9.52
ø
12.7
ø
6.35
ø
9.52
ø
12.7
ID
ID ID
ID
ID ID
ID
ID
ID
ID ID
ID
ID
ID
ID
Diameter is same as above dimensions
Diameter is same as above dimensions
Diameter is same as above dimensions