V6R VRF 50/60Hz
173
Part 3 - System Design and Installation
Example of communication wiring:
Figure 3-9.6: Communication wiring example
Notes:
1. One port of the MS04‐12 box allows for connection of up to five IDUs in series.
2. One port of the MS01 box allows for connection of up to eight IDUs in series.
3. L1+L2≤1200 m; L3≤1200 m; L4≤1200 m; L5+L6+L7+L8+L9≤1200 m
P Q E
No.1 MS box
Outdoor unit
L1
L2
L3
L3
L3
P Q
Indoor unit 1#
Indoor unit 3#
P Q
Indoor unit 2#
L3
Indoor unit 5#
Indoor unit 4#
L4
L5
No.2 MS box
P Q
P Q
P Q
P Q
Indoor Unit
L7
L8
L9
Indoor Unit
Indoor Unit
I
n
d
o
o
r
U
n
i
t
Indoor Unit
Indoor Unit
#6
P Q E
P
Q E
P
Q E
P
Q E
P
Q E
P
Q E
P
Q E
P
Q E
P
Q E P Q E
(P Q E) (P Q E)
L6
Indoor Unit
#7
Indoor Unit
#8
Indoor Unit
#9
(P Q E)
(P Q E)
(P Q E)
Indoor Unit
#10
(P Q E)
(P Q E)
(P Q E)
(P Q E)
(P Q E)
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