6
5
5.1
F
F
F
F
A
B
L
K
J
J
J
C
E
H
K
D
D
D
E
E
E
E
G
E
E
H
I
[Fig. 5.1.5]
[Fig. 5.1.6]
A
Connection pipe from Sub-HBC
B
Connection pipe from indoor unit
C
Auto air vent
D
T-joint
E
Piping for Sub-HBC or indoor unit side
F
Piping for Main-HBC side
Total down-stream indoor unit capacity
Pipe size between Main-HBC and Sub-HBC *1
Pipe size between Main-HBC and indoor unit *1
Pipe size between Sub-HBC and indoor unit *1
Max 20 m *2
Max 40 m *2
Max 60 m *2
W/WP/WL10
I.D.
≥
12 mm
I.D.
≥
12 mm
I.D.
≥
12 mm
W/WP/WL11 - W/WP/WL15
I.D.
≥
12 mm
I.D.
≥
12 mm
I.D.
≥
15.5 mm
W/WP/WL16 - W/WP/WL25
I.D.
≥
15.5 mm
I.D.
≥
15.5 mm
I.D.
≥
15.5 mm
W/WP/WL26 - W/WP/WL32
I.D.
≥
15.5 mm
I.D.
≥
19.9 mm
I.D.
≥
19.9 mm
W/WP/WL33 - W/WP/WL50
I.D.
≥
19.9 mm
I.D.
≥
19.9 mm
I.D.
≥
19.9 mm
W/WP/WL51 - W/WP/WL63
I.D.
≥
19.9 mm
I.D.
≥
25.2 mm
I.D.
≥
25.2 mm
W/WP/WL64 - W/WP/WL80
I.D.
≥
25.2 mm
I.D.
≥
25.2 mm
I.D.
≥
25.2 mm
W/WP/WL81 - W/WP/WL100
I.D.
≥
25.2 mm
I.D.
≥
25.2 mm
I.D.
≥
32.6 mm
W/WP/WL101 - W/WP/WL150
I.D.
≥
32.6 mm
I.D.
≥
32.6 mm
I.D.
≥
32.6 mm
W/WP/WL151 - W/WP/WL250
I.D.
≥
32.6 mm
I.D.
≥
32.6 mm
II.D.
≥
39.6 mm
W/WP/WL251 - W/WP/WL300
I.D.
≥
32.6 mm
I.D.
≥
39.6 mm
I.D.
≥
50.8 mm
W/WP/WL301 - W/WP/WL750
I.D.
≥
50.8 mm
I.D.
≥
50.8 mm
I.D.
≥
50.8 mm
A
To outdoor unit
B
End connection (brazing)
C
Main-HBC: Maximum total capacity of connected indoor units: W/WP/WL170
D
Sub-HBC: Maximum total capacity of connected indoor units: W/WP/WL250
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
Auto air vent valve (Top position of piping on Main-HBC) (field supply)
L
Joint (field supply)
M
Pump 1 circuit
N
Pump 2 circuit
Fig. B
Fig. A
Fig. C
N
M
N
M
N
M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
M
6
5
4
3
2
1
N
B
F
C
E
D
A
*1 When connecting CMB-WM108/1016V-AA and CMB-WM108/1016V-BB, refer to the installation manual for CMB-WM108/1016V-AA about pipe size.
*2 Piping length from Main-HBC to the farthest indoor unit
01_WT09805X01_en.book 6 ページ 2021年11月1日 月曜日 午前8時47分