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[ II Restrictions ]
39- 39 -
HWE08040 GB
[7] An Example of a System to which both MA Remote Controller and M-NET Remote Controller are connected
(1) Sample control wiring
(2) Cautions
1) Be sure to connect a system controller.
2) M-NET remote controller and MA remote controller can-
not both be connected to the same group of indoor units.
3) Assign to the indoor units connected to the MA remote
controller addresses that are smaller than those of the in-
door units that are connected to the M-NET remote con-
troller.
4) No more than 2 M-NET remote controllers can be con-
nected to a group of indoor units.
5) No more than 2 MA remote controllers can be connected
to a group of indoor units.
6) Do not connect the terminal blocks (TB5) on the indoor
units that are connected to different outdoor units with
each other.
7) Replace the power jumper connector of the control board
from CN41 to CN40 on only one of the outdoor units.
8) Provide an electrical path to ground for the S terminal on
the terminal block for centralized control on only one of
the outdoor units.
9) A transmission booster must be connected to a system
in which the total number of connected indoor units ex-
ceeds 20.
10) A transmission booster is required in a system to which
more than 16 indoor including one or more indoor units
of the 72 model or above are connected.
11) When a power supply unit is connected to the transmis-
sion line for centralized control, leave the power jumper
connector on CN41 as it is (factory setting).
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as [5] 3.
2) Transmission line for centralized control
Same as [5] 4.
3) MA remote controller wiring
Same as [5] 1.
4) M-NET remote controller wiring
Same as [5] 1.
IC
TB5 TB
15
1 2
01
IC
TB5 TB
15
1 2
02
IC
TB5 TB
15
1 2
06
106
IC
TB5 TB
15
1 2
05
A B
MA
A B
RC
A B
MA
IC
TB5
1 2
TB
15
IC
TB5 TB
15
1 2
0403
104
A B
RC
L11 L12
L21 L22
TB3
TB7
S
TB3
TB7
S
TB3
TB7
M1 M2 M1 M2 M1 M2
M1 M2 M1 M2 M1 M2
S
OC
TB3
TB7
S
54
OS1
TB3
TB7
S
55
OS2
TB3
TB7
M1 M2 M1 M2 M1 M2
M1 M2 M1 M2 M1 M2
S
56
L31
A B S
L32
S
M1 M2
S
M1 M2
S
M1 M2
SW2-1 OFF ON
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
Leave the male
connector on
CN41 as it is.
OCOS1OS2
515253
CN41 CN40 Replace
SW2-1 OFF ON
Group Group
GroupGroup
SW2-1 OFF ON
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
Leave the male
connector on
CN41 as it is.
Note1
System controller
Note1 When only the LM adapter is connected,
leave SW2-1 to OFF (as it is).
Note2 LM adapters require the power supply
capacity of single-phase AC 208/230V.
Connect
Not
connect
Not
connect
S
M1 M2
S
M1 M2
S
M1 M2
Not
connect
Not
connect
Not
connect