Mitsubishi Electric PURY-P200 Service Handbook page 32

1. System using MA remote controller
(5) Connecting (multiple) BC controllers in R2 systems (with the system controller connected to the transmission lines for centralized control
CN41→CN40 Replace
SW2-1 OFF→ON
L1 L2
Note 1
Group
OC
BC
51
2 1
52
TB7 TB3 TB02
M1M2 S M1M2 M1M2 S
Connect
Leave CN41 as it is.
SW2-1 OFF→ON
L21 L22
Group
OC
BC
53
3 2 1
54
TB3
TB7 TB02
M1M2 S M1M2 M1M2 S
Note 2
System controller
M1M2 S
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
L3 L4
Group
IC IC IC
1 2
01 02 04
TB5 TB15 TB5 TB15 TB5 TB15
M1M2 S 1 2 M1M2 S 1 2 M1M2 S 1 2
A1 B2 A1 B2
MA
L23 L24
Group
IC IC IC
1 2 3
03 05 06
TB5 TB5 TB15 TB5 TB15
TB15
M1M2 S
M1M2 S M1M2 S 1 2
1 2 1 2
A1 B2
A1 B2
MA MA
Numbers in the squares indicate pipe-end
connection number.
Connection to the BC controller
L5 L6 L7
Group
BS IC IC
2 2 1 1
07 08
57 57
TB02 TB5 TB15 TB5
M1M2 S M1M2 S 1 2 M1M2 S
A1 B2
MA MA
L25 L26 L27
Group
BS
IC IC
4 4
09 10
59
TB5 TB15 TB5
TB02
M1M2 S M1M2 S 1 2 M1M2 S
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
Farthest length (1.25mm
L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9 + L10
L21 + L22 + L23 + L24 + L25 + L26 + L27
b. Centralized control transmission line
Farthest length via outdoor unit (1.25mm
L32 + L31 + L1 + L2 + L3 + L4 + L5 + L6+ L7 + L8 + L9 + L10
L32 + L21 + L22 + L23 + L24 + L25 + L26 + L27
L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9 + L10
+ L31 + L21 + L22 + L23 + L24 + L25 + L26 + L27
c. MA remote controller wiring
The same as 1. (1)
- 29 -
L8 L9 L10
Group
BS IC
2 2 1 1
11
61
TB15 TB02 TB5 TB15 TB5
1 2 M1M2 S M1M2 S 1 2 M1M2
A1 B2
MA
4
TB15
1 2
– Example to use shielded wire –
Allowable length
2 or more)
2
or more)
IC
2
12
TB15
S 1 2
NO
≤
200m
≤
200m
≤
500m
≤
500m
≤
500m