An Example Of A System To Which An M-Net Remote Controller Is Connected - Mitsubishi Electric PURY-P72 Service Handbook
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[ II Restrictions ]
[6] An Example of a System to which an M-NET Remote Controller is connected
(1) Sample control wiring
L11
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
OS
52
TB3
M1M2
TB7
M1M2
S
Not
Connect
L21
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
OS
56
TB3
M1M2
TB7
M1M2
S
Not
Connect
(2) Cautions
1) M-NET remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
2) No more than 3 M-NET 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 P72 and P96 models
are not included in the connected
indoor units
When the P72 and P96 models
are included in the connected in-
door units
HWE0803A
CN41 CN40 Replace
SW2-1 OFF ON
Group
OC
BC
51
53
TB3
TB02
S
M1M2
M1M2
M1M2
TB7
M1 M2S
Connect
A1 B2
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
Group
OC
BC
55
57
TB3
TB02
M1M2
M1M2
S
TB7
Not
M1M2
S
Connect
A1 B2
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
Interlock operation with the ventilation unit
L12
Group
IC
IC
01
02
TB5
TB15
TB5
TB15
S
1 2
M1M2
S
1 2
A1 B2
101
102
RC
RC
L22
Group
IC
IC
04
05
TB5
TB5
TB15
TB15
M1M2
S
1 2
M1M2
S
1 2
M1M2
A1 B2
A1 B2
154
104
106
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) M-NET remote controller wiring
Maximum overall line length
2
(0.3 to 1.25mm
[AWG22 to 16])
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
- 38 -
Group
LC
IC
03
07
TB5
TB15
TB5
M1M2
S
1 2
M1M2
S
A1 B2
103
RC
LC
IC
06
08
TB5
TB5
TB15
M1M2
S
S
1 2
RC
2
[AWG16]. The section
2
[AWG18-16].
GB
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