- 42 -
[
II
Restrictions ]
6. An example of a system in which a system controller is connected to the indoor-outdoor (heat source)
transmission line (except LM adapter)
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. Do not connect the terminal blocks (TB5) on the indoor units
that are connected to different outdoor (heat source) units with
each other.
4. Replacement of male power supply switch connector (CN41)
must be performed only on one of the outdoor (heat source)
units.
5. Provide grounding to S terminal on the terminal block for trans-
mission line for centralized control (TB7) on only one of the out-
door (heat source) units.
6. A maximum of 3 system controllers can be connected to the in-
door-outdoor (heat source) transmission line, with the exception
that only one G-50 may be connected.
7. When the total number of indoor units exceeds 26, it may not be
possible to connect a system controller on the indoor-outdoor
(heat source) transmission line.
8. In a system to which more than 18 indoor units including one or
more indoor units of 72 model or above are connected, there
may be cases in which the system controller cannot be connect-
ed to the indoor-outdoor (heat source) transmission line. Nei-
ther a BC or BS can be connected on the TB3 side (expanded
side) of the transmission booster.
(1) Indoor/outdoor (heat source) transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
(L1)* +L2+L3+L4 200m [656ft]
(L21)* +L22+L23+L24 200m [656ft]
L25 200m [656ft]
*L1 and L21 are applicable only in the R2 or WR2 system.
(2) Transmission line for centralized control
Maximum line distance via outdoor (heat source) unit
(1.25mm
2
[AWG16] or larger)
L25+L31+(L1)* +L2+L3+L4 500m [1640ft]
(L1)* +L2+L3+L4+L31
+(21)* +L22+L23+L24 500m [1640ft]
*L1 and L21 are applicable only in the R2 or WR2 system.
(3) MA remote controller wiring
Same as [4] 1.
IC
TB5
M1M2 S
TB15
1 2
01
IC
TB5
M1M2 S
TB15
1 2
05
A1 B2
MA
A1 B2
MA
LC
TB5
M1M2 S
07
IC
TB5
M1M2 S
1 2
TB15
IC
TB5
M1M2 S
TB15
1 2
04
03
LC
TB5
M1M2 S
06
A1 B2
MA
Group
Group
Group
L3
L4
L23
L24
Interlock operation with
the ventilation unit
NO
NO
NO
In the case of Y or WY
In the case of Y or WY
L2
L22
OC
TB3
TB7
M1M2
M1M2 S
51
OC
TB3
TB7
M1M2
M1M2 S
53
L31
OC
TB3
TB7
M1M2
M1M2 S
51
*1 BC
TB02
M1M2 S
52
OC
TB3
TB7
M1M2
M1M2 S
53
*1 BC
TB02
M1M2 S
54
L1
L2
L21
L22
Connect
Connect
System controller
M1M2 S
Note1
L25
CN41 CN40 Replace
SW2-1 OFF ON
CN41 CN40
Replace
SW2-1 OFF ON
TB02
M1M2 S
55
*1 BS
In the case of R2 or WR2
In the case of R2 or WR2
*1 BC and BS are found only in the R2 or WR2 system.
Note1 LM adapters cannot be connected to the
indoor-outdoor transmission line.
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.
Содержание City Multi CMB-P1016NU-G
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