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[
II
Restrictions ]
3. Group operation of units in a system with multiple outdoor units
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.
6. 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.
(1) Indoor/outdoor transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
(L1)* +L2+L3+L4 200m [656ft]
(L21)* +L22+L23+L24 200m [656ft]
*L1 and L21 are applicable only in the R2 system.
(2) Transmission line for centralized control
Maximum line distance via outdoor unit
(1.25mm
2
[AWG16] or larger)
(L1)* +L2+L3+L4+L31
+(L21)* +L22+L23+L24 500m [1640ft]
*L1 and L21 are applicable only in the R2 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
06
IC
TB5
M1M2 S
1 2
TB15
IC
TB5
M1M2 S
TB15
1 2
1 2
03
02
IC
TB5
TB15
M1M2 S
04
A1 B2
MA
Group
Group
Group
m2
m3
L3
L4
L23
L24
Interlock operation with
the ventilation unit
CN41 CN40
Replace
CN41 CN40
Replace
NO
NO
NO
In the case of Y
L2
L22
OC
TB3
TB7
M1M2
M1M2 S
51
OC
TB3
TB7
M1M2
M1M2 S
52
L31
OC
TB3
TB7
M1M2
M1M2 S
51
*1 BC
TB02
M1M2 S
53
OC
TB3
TB7
M1M2
M1M2 S
52
*1 BC
TB02
M1M2 S
54
L1
L2
L21
L22
Connect
Connect
TB02
M1M2 S
55
In the case of R2
*1 BS
In the case of Y
In the case of R2
*1 BC and BS are found only in the R2 system.
Leave the male
connector
on CN41 as it is.
Leave the male
connector on CN41 as it is.
Содержание PUHY-P168
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Страница 38: ... 29 II Restrictions ...
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Страница 54: ... 45 II Restrictions ...
Страница 58: ... 49 II Restrictions ...
Страница 75: ... 66 ...
Страница 99: ... 90 III Outdoor Unit BC Controller Components 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...
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Страница 126: ... 117 VI Refrigerant Circuit 1 Refrigerant Circuit Figure 119 2 Principal Parts and Functions 126 ...
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Страница 134: ... 125 VI Refrigerant Circuit 3 CMB P104 and P108NU GB sub TH25 TH22 LEV3a CP Solenoid valves Block Check valves Block ...
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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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