Mitsubishi Electric CITY MULTI CMB-WM108V-AA Manuel D'installation page 8

5
[Fig. 5.2.1]
C
B
A
D
F
E
[Fig. 5.2.2]
Total down-stream indoor
unit capacity
W/WP/WL10–50
W/WP/WL51–125
[Fig. 5.2.3]
Total down-stream indoor unit capacity
W/WP/WL10–100
W/WP/WL101–200
W/WP/WL201–300
W/WP/WL301–400
W/WP/WL401–500
W/WP/WL501–525
A
C
B
J
K
J
H
J
E E
M
1 2 3 4 5
Fig. A
M
1
Fig. B
[Fig. 5.2.4]
A
B C D
8
A Locally procured insulating material
for pipes
B Bind here using band or tape.
C Do not leave any opening.
D Lap margin: more than 40 mm
E Insulating material (field supply)
F Unit side insulating material
Connection size
Water inlet Water outlet
I.D. ≥ 20 mm
O.D. 22 mm O.D. 22 mm
I.D. ≥ 30 mm
Pipe size between Main-HBC controller and Sub-HBC controller
D
F
J
I
E E E E
G
L M L
6 7 8 9 10 11 12 13 14 15 16
L
2 3 4 5 6 7 8
A HBC controller
B Water pipe
C Pressure gauge (field supply)
E F G
D Check valve (field supply)
E Shutoff valve (field supply)
F Pressure reducing valve (field supply)
G Strainer (field supply)
5.2
Pipe size
Water out Water return
I.D. ≥ 20 mm
I.D. ≥ 30 mm
I.D. ≥ 20.0 mm
I.D. ≥ 25.8 mm
I.D. ≥ 30.0 mm
I.D. ≥ 33.3 mm
I.D. ≥ 36.2 mm
I.D. ≥ 36.8 mm
A To outdoor unit
B End connection (brazing)
C Main-HBC controller
D Sub-HBC controller
E Indoor unit
F Branch joint (field supply)
G Up to three units for 1 branch hole; total capacity: below 80 (but in same mode,
cooling/heating)
H Shutoff valve (field supply)
I Pressure control valve (field supply)
J Auto air vent valve (Highest point on the water pipe for each branch)
(field supply)
K Water pipework
L Pump 1 circuit
M Pump 2 circuit
* For other indoor units, refer to the indoor unit installation manual.
* The pipe diameter depends on the capacity of indoor units.
Refer to the indoor unit installation manual for details.