Mitsubishi Heavy Industries FDTC50ZHXV Technical Manual page 360

■ The indoor_outdoor piping length differences among indoor units are 3m or more. (In case of model 250, the
application that the indoor_outdoor piping length differences among indoor units are 3m or more is prohibited.)
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Gas line
Outdoor unit
�
L
�
Liquid line
Item
Liquid pipe
Indoor unit
combinations Main pipe Branch pipe Main pipe Branch pipe
Model
FDC140 50+50+50
Note (1) When 50 model of indoor unit is applied to this combination, the reducer 3 supplied with the branch piping set should be used in order to reduce the liquid piping size
from φ9.52mm to φ6.35mm at indoor unit side (flare connection). Accordingly be sure to select the liquid piping size φ9.52mm from branch to indoor unit.
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DIS-WB1
Gas line
Outdoor unit
L
Liquid line
Item
Indoor unit
combinations Main pipe Branch pipe Main pipe Branch pipe
Model
FDC200 71 � 71 � 71
Note (1) For model FDC200, when the length of the main piping "L" exceeds 30m, φ12.7mm liquid pipe should be used. If φ9.52mm liquid pipe is used instead of φ12.7mm,
it may cause performance degradation and/or leakage of condensate from indoor unit.
Indoor unit
�
�
�
�
�
�
Gas pipe
�
�
�
�
DIS-WA1
Liquid pipe Gas pipe
22.22 1.6
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��� ���� ������
ID15.88
ID15.88
11 �
24
ID15.88
Notes (1) Symbol 1 to 4 in the drawing shows the symbols of branch piping parts in the
chart respectively.
(2) Branch piping should always be arranged to have level or perpendicular position.
(Refer to the 348 page for details)
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��� ����
Indoor unit
ID25.4
19
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��� ����
ID15.88
11
Notes (1) Symbol � to � in the drawing shows the symbols of
350
- -
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ID9.52
ID9.52
ID9.52
�
8
ID9.52
210 OD15.88
������ ������ ����
ID9.52
ID15.88
ID9.52
�
10
ID9.52
39 190
ID15.88
������ ������ ����
ID15.88 ID9.52
ID9.52
�
8
ID9.52
24 210
ID15.88
branch piping parts in the chart respectively.
(2) Branch piping should always be arranged to have level
or perpendicular position. (Refer to the 348 page for
details.)
������� ������
50
8 �
105
2 piece
ID12.7
�
10
80
2 piece
������ ������� ������
OD12.7 ID9.51
� �
10
80
������ ������� ������
ID9.52
8 50 �
105
2 piece
�
OD15.88 ID12.7
�
10
80
2 piece