57
• Name, Symbol, and the Maximum Units for Connection
Permissible Length
Prohibited items
• Max length via outdoor units : L
1
+L
2
+L
3
+L
4
+L
5
+L
6
+L
7
+L
9
L
1
+L
2
+L
3
+L
4
+L
5
+L
6
+L
8
+L
9
[
500 meters (1.25mm
2
)
• Max transmission cable length : L
1
+L
2
+L
3
+L
4
, L
5
+L
6
+L
7
, L
5
+L
6
+L
8
, L
7
+L
8
[
200 meters (1.25mm
2
)
• Remote controller cable length :
R
1
,
R
2
,
R
3
,
R
4
[
10 meters (0.5 to 0.75mm
2
)
If the length exceeds 10 meters, use a 1.25 mm
2
shielded wire. The length of this sec-
tion (L
8
) should be included in the calculation of the maximum length and overall length.
• The terminal S on the terminal block (TB7) for the central control panel should be connected to the ground terminal
;
of the electric components box for one outdoor unit only.
• Never connect together the terminal blocks (TB5) for transmission wires for indoor units (IC) that have been connected to
different outdoor units (OC).
• M-NET remote controller and MA remote controller cannot be connected with the indoor unit of the same group wring
together
M1 M2 S
TB7
IC
(051)
M1 M2 S 1 2
1 2
1 2
TB5 TB15
1 2
TB15
TB15
TB15
MA
Shielded wire
(001)
IC
M1 M2 S
TB5
(002)
IC
M1 M2 S
TB5
(004)
IC
M1 M2 S
TB5
(003)
IC
M1 M2 S
TB5
(005)
IC
M1 M2 S
TB5
(007)
IC
Group 1
Group 3
Group 5
M1 M2 S
TB5
(006)
MA
MA
MA
CN40
OC
M1 M2 S
TB7
(052)
OC
M1 M2 S
TB3
M1 M2 S
TB3
1 2
1 2
TB15
TB15
1 2
TB15
OC183E--2.qxp 10.5.6 0:47 PM Page 57
