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[ II Restrictions ]
[6] An Example of a System to which an ME Remote Controller is connected
(1) Sample control wiring
(2) Cautions
1) ME remote controller and MA remote controller cannot both
be connected to the same group of indoor units.
2) No more than 2 ME remote controllers can be connected to
a group of indoor units.
3) Do not connect the terminal blocks (TB5) on the indoor units
that are connected to different outdoor units with each other.
4) Replace the power jumper connector of the control board
from CN41 to CN40 on only one of the outdoor units.
5) Provide an electrical path to ground for the S terminal on the
terminal block for centralized control on only one of the out-
door units.
6) When the number of the connected indoor units is as shown
in the table below, one or more transmission boosters (sold
separately) are required.
To connect two transmission boosters, connect them in par-
allel. (Observe the maximum number of connectable indoor
units that are listed in the specifications for each outdoor
unit.)
When the 200 and 250 models
are not included in the connected
indoor units
When the 200 and 250 models
are included in the connected in-
door units
HWE10020
Move the male connector
from CN41 to CN40.
SW2-1 OFF ON
OC
BC
51
53
TB3
TB02
S
M1M2
M1M2
TB7
M1 M2S
To be connected
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
OC
BC
55
57
TB3
TB02
M1M2
M1M2
S
TB7
To be left
M1M2
S
unconnected
Note1
System controller
A B S
*1 When only the LM adapter is connected, leave SW2-1 to OFF (as it is).
*2 LM adapters require the power supply capacity of single-phase AC 220 - 240V.
Number of transmission booster
(sold separately) required
1 unit
2 units
3 units
15 - 34
35 - 50
-
units
units
11 - 26
27 - 42
43 - 50
units
units
units
L11
Group
Group
IC
IC
01
02
TB5
TB15
TB5
TB15
S
1 2
M1M2
S
1 2
M1M2
A1 B2
A1 B2
101
102
RC
RC
L21
Group
IC
IC
04
05
TB5
TB5
TB15
TB15
M1M2
S
1 2
M1M2
S
1 2
A1 B2
A1 B2
154
104
RC
RC
The left table shows the number of transmission boosters
that is required by the system with three BC controllers. For
each BC controller that is subtracted from the above-men-
tioned system, two additional indoor units can be connected.
7) When a power supply unit is connected to the transmission
line for centralized control, leave the power jumper connec-
tor 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) ME remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
m1 10m [32ft]
m2+m3 10m [32ft]
If the standard-supplied cable must be extended, use a
cable with a diameter of 1.25mm
of the cable that exceeds 10m [32ft] must be included in
the maximum indoor-outdoor transmission line distance
described in (1).
When connected to the terminal block on the Simple re-
mote controller, use cables that meet the following cable
size specifications: 0.75 - 1.25 mm
4) Maximum line distance via outdoor unit
2
(1.25 mm
[AWG16] or large)
Same as [5] 4.
- 42 -
Interlock operation with the ventilation unit
Group
LC
IC
03
07
TB5
TB15
TB5
M1M2
S
1 2
M1M2
S
A1 B2
103
RC
Group
LC
IC
06
08
TB5
TB5
TB15
M1M2
M1M2
S
S
1 2
A1 B2
106
RC
2
[AWG22 to 16])
2
[AWG16]. The section
2
[AWG18-16].
GB
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