29
OCH634C
• Name, Symbol, and the Maximum Units for Connection
Permissible
Length
Prohibited
items
• Longest length via outdoor units : L
1
+L
2
+L
3
+L
4,
L
1
+L
2
+L
3+
L
5,
L
1
+L
2
+L
6
+L
7
[
500 m (1.25 mm²)
• Longest transmission cable length : L
1,
L
3
+L
4
, L
3+
L
5
, L
2
+L
6
, L
7
[
200 m (1.25 mm²)
• Remote controller cable length :
R
1
,
R
2
,
R
2
+
R
3
,
R
4
[
10 m (0.5 to 1.25 mm²)
If the length exceeds 10 m, use a 1.25 mm² shielded wire. The length of this section (L
8
)
should be included in the calculation of the maximum length and overall length.
• Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected to
different outdoor units (OC).
• Set all addresses to ensure that they are not overlapped.
• M-NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wiring
together.
A
B
C
E
D
IC
(51)
TB5
(01)
IC
TB5
(03)
IC
TB5
(02)
IC
TB5
(04)
IC
TB5
(05)
IC
TB5
(07)
IC
TB5
(06)
(101)
(105)
(104)
(155)
OC
(53)
OC
Power Supply
Unit
A
: Group
B
: Group
C
: Group
D
: Shielded Wire
E
: Sub Remote Controller
( ): Address example
TB7
TB3
M1 M2 S
TB7
M1 M2 S
M1 M2 S
TB3
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
M1 M2 S
A B
A B
A B
A B
M1 M2 S
System
controller
D
NO
NO
M-NET RC
M-NET RC M-NET RC
M-NET RC
