Mitsubishi Electric PURY-P200 Service Handbook page 38

3. System where MA remote controller and M-NET remote controller coexist
CN41→CN40 Replace
SW2-1 OFF→ON
Leave CN41 as it is.
SW2-1 OFF→ON
Prohibited items
1. Make sure to connect the system controller.
2. M-NET and MA remote controllers can not be connected to-
gether to the indoor unit within a same group.
3. M-NET remote controller of 3 units or more can not be con-
nected to the indoor unit within a same group.
4. MA remote controller of 3 units or more can not be connected
to the indoor unit within a same group.
5. Do not connect together the terminal blocks (TB5) of the in-
door unit connected to different outdoor units.
6. Replacement of the power supply selecting connector (CN41)
on the outdoor unit should be done only on one outdoor unit.
7. Grounding work is required for S-terminal of the centralized
control transmission block (TB7) on one outdoor unit only.
8. When the total number of indoor units exceeds 20 sets, trans-
mission line booster is required.
9. When the total number of indoor units exceed 16 sets and
they include Type 200 or above, the transmission line booster
is required.
Control wiring example
L1
Note1
OC
✻2
BC
51
55
TB3
TB7 TB02
M1M2 S M1M2 M1M2 S
Connect
M1M2 S
TB02
52
✻2
BS
L21
Note1
OC
✻2
BC
53
54
TB3
TB7 TB02
M1M2 S M1M2 M1M2 S
NO
Note 2
System controller
M1M2 S
L2 L3
Group
Group
IC IC
01 02
TB5 TB15 TB5
M1M2 S M1M2 S
1 2
A1 B2
MA
L22 L23
Group
IC IC
03 05
TB5 TB5
TB15
M1M2 S M1M2 S
1 2
A1 B2
A1 B2
105
MA
RC
Notes:
1. Leave SW2-1 as "OFF" when connecting LM adapter only.
2. LM adapter requires the power source of 1-phase AC 230V.
Allowable length
a. Indoor/outdoor transmission line
The same as 1. (3)
b. Centralized control transmission line
The same as 1. (4)
c-1. MA remote controller wiring
The same as 1. (1)
c-2. M-net remote controller wiring
The same as 2. (1)
- 35 -
L4
IC
04
TB15 TB5 TB15
M1M2 S
1 2 1 2
A1 B2
104
RC
NO
L24
Group
IC
06
TB15 TB5 TB15
M1M2 S
1 2 1 2
– Example to use shielded wire –