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[
II
Restrictions ]
5. An example of an R2 system to which multiple BC controllers are connected
(a system in which a system controller is connected to the transmission line for centralized control).
Sample control wiring
Don'ts
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 units with each other.
4. Replacement of male power supply switch connector
(CN41) must be performed only on one of the outdoor units.
5. Provide grounding to S terminal on the terminal block for
transmission line for centralized control (TB7) on only one of
the outdoor units.
(1) Indoor/outdoor transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
L1+L2+L3+L4+L5+L6+L7+L8+L9+L10 200m [656ft]
L21+L22+L23+L24+L25+L26+L27 200m [656ft]
(2) Transmission line for centralized control
Maximum line distance via outdoor unit
(1.25mm
2
[AWG16] or larger)
L32+L31+L1+L2+L3+L4
+L5+L6+L7+L8+L9+L10 500m [1640ft]
L32+L21+L22+L23+L24+L25+L26+L27 500m [1640ft]
L1+L2+L3+L4+L5+L6+L7+L8+L9+L10+L31
+L21+L22+L23+L24+L25+L26+L27 500m [1640ft]
(3) MA remote controller wiring
Same as [4] 1.
*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 208/230V.
CN41 CN40
Replace
SW2-1 OFF ON
Leave the male connector
on CN41 as it is.
SW2-1 OFF ON
IC
TB5
M1M2 S
TB15
1 2
01
IC
TB5
M1M2 S
TB15
1 2
02
IC
TB5
M1M2 S
TB15
1 2
04
IC
TB5
M1M2 S
TB15
1 2
06
A1 B2
MA
A1 B2
MA
A1 B2
MA
IC
TB5
M1M2 S
1 2
TB15
IC
TB5
M1M2 S
TB15
1 2
05
03
Group
Group
Group
Group
L2
L22
L3
IC
TB5
M1M2 S
TB15
1 2
07
IC
TB5
M1M2 S
TB15
1 2
08
A1 B2
MA
Group
L6
L5
L7
IC
TB5
M1M2 S
TB15
1 2
09
IC
TB5
M1M2 S
TB15
1 2
10
A1 B2
MA
Group
L26
L27
L4
L23
L24
L25
A1 B2
MA
System controller
M1M2 S
L31
L32
*2
OC
TB3
TB7
M1M2
M1M2 S
51
BC
BC
TB02
M1M2 S
52
57
OC
TB3
TB7
M1M2
M1M2 S
53
TB02
M1M2 S
BS
TB02
M1M2 S
BS
TB02
M1M2 S
L1
L21
*1
Connect
*1
NO
1
1
2
1
2
2
2
1
2
1
1
2
4
4
3
2
3
4
Numbers in the indicate port numbers.
Connection to BC controllers
54
59
IC
TB5
M1M2 S
TB15
1 2
11
IC
TB5
M1M2 S
TB15
1 2
12
A1 B2
MA
Group
L9
L10
61
BS
TB02
M1M2 S
1
2
1
2
L8
Содержание PUHY-P168
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Страница 366: ... 357 IX Troubleshooting ...
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Страница 368: ... 359 X LED monitor display on the outdoor unit board 1 How to read the LED on the service monitor 361 ...
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