Mitsubishi Electric City Multi CMB-P1016NU-G, Service Handbook

Page: 33 / 349

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[
II
Restrictions ]
[4] An Example of a System to which an MA Remote Controller is connected
1. System with one outdoor (heat source) unit (automatic address setup for both indoor and outdoor (heat
source) units)
Sample control wiring
Notes Maximum allowable length
1. M-NET remote controller and MA remote controller cannot
both be connected to the same group of indoor units.
2. No more than 2 MA remote controllers can be connected to
a group of indoor units.
3. A transmission booster must be connected to a system to
which more than 26 indoor units including one or more in-
door units of 72 model or above are connected. Neither a BC
or BS can be connected on the TB3 side (expanded side) of
the transmission booster.
4. Automatic address setup is not available if start-stop input
(CN32, CN51, CN41) is used for a group operation of indoor
units, or if a sub BC controller is connected to the system.
Refer to "[4] 2. Manual address setup for both indoor and
outdoor (heat source) units".
5. To connect more than 2 LOSSNAY units to indoor units in
the same system, refer to the next section "[4] 2. An example
of a system with one outdoor (heat source) unit to which 2 or
more LOSSNAY units are connected".
(1) Indoor/outdoor (heat source) transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
(L1)* +L2+L3+L4 200m [656ft]
(L1)* +L2+L12+L13 200m [656ft]
*L1 is applicable only in the R2 or WR2 system.
(2) Transmission line for centralized control
No connection is required.
(3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
2
[AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
When connected to the terminal block on the MA simple remote
controller, use cables that meet the cable size specifications
0.75-1.25mm
2
[AWG18 to 14].
NO
NO
NO
IC
TB5
M1M2 S
TB15
1 2
00
IC
TB5
M1M2 S
TB15
1 2
00
A1 B2
MA
A1 B2
MA
A1 B2
RC
LC
TB5
M1M2 S
00
IC
TB5
M1M2 S 1 2
TB15
IC
TB5
M1M2 S
TB15
1 2
00 00
IC
TB5
M1M2 S
TB15
1 2
00
A1 B2
MA
A1 B2
MA
A1 B2
MA
Group Group
Group Group
A1 B2
MA
m1
L11
m2
L3 L4
L12 L13
m3
m5
m4
Interlock operation with
the ventilation unit
*1 BC and BS are found only in the R2 or WR2 system.
When BS is connected to the system, automatic address setup is not available.
OC
TB3 TB7
M1M2 M1M2 S
00
*1 BC
*1
TB02
M1M2 S
00
L1 L2
In the case of R2 or WR2
L2
OC
TB3 TB7
M1M2
M1M2 S
00
In the case of Y or WY
BS
TB02
M1M2 S
00