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Mitsubishi Electric PURY-P200 Service Handbook page 30

City multi r410a
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1. System using MA remote controller
(4) In the case of connecting system controller to centralized control transmission line
CN41→CN40 Replace
SW2-1 OFF→ON
Note 1
Connect
Leave CN41 as it is.
SW2-1 OFF→ON
Note 1
✻1.
BC and BS are found only in the R2 system.
Prohibited items
1. M-NET and MA remote controllers can not be connected to-
gether to the indoor unit within the same group.
2. MA remote controller of 3 units or more can not be connected
to the indoor unit within the same group.
3. Do not connect together the terminal blocks (TB5) of the in-
door unit connected to different outdoor units.
4. Replacement of the power supply selecting connector (CN41)
on the outdoor unit should be done only on one outdoor unit.
5. Grounding work is required for S-terminal of the centralized
control transmission block (TB7) on one outdoor unit only.
6. When the total number of indoor units exceeds 26 units In-
cluding that above Type 200, a transmission booster is re-
quired.
Control wiring example
L1
L2
Group
OC
✻ 1
BC
51
55
TB7
TB3
TB02
M1M2
S
M1M2
M1M2
S
M1M2
M1M2
S
TB02
52
✻ 1
BS
L21
L22
Group
OC
✻ 1
BC
53
54
TB7
TB3
TB02
M1M2
S
M1M2
M1M2
S
M1M2
NO
Note 2
System controller
M1M2
S
L3
Group
IC
IC
01
02
TB5
TB15
TB5
TB15
S
1 2
M1M2
S
A1 B2
A1 B2
MA
L23
IC
IC
03
04
TB5
TB5
TB15
TB15
S
1 2
M1M2
S
1 2
A1 B2
MA
Notes:
1. Leave SW2-1 as "OFF" when connecting LM adapter only.
2. LM adapter requires the power source of 1-phase AC 230V.
a. Indoor/outdoor transmission line
The same as 1. (3)
b. Centralized control transmission line
Farthest length via outdoor unit (1.25mm
L32 + L31 + L1 + L2 + L3 + L4
L32 + L21 + L22 + L23 + L24
L1 +L2 + L3 + L4 + L31 + L21 + L22 + L23 + L24
c. MA remote controller wiring
The same as 1. (1)
- 27 -
Interlocking with ventilation
L4
LC
05
TB5
M1M2
S
1 2
MA
NO
L24
LC
06
TB5
M1M2
S
– Example to use shielded wire –
Allowable length
2
or more)
≤
500m
≤
500m
≤
500m
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