Mitsubishi P288T(Y)SJMU-A PUHY-P312 User Manual

Page of 334
- 40 -
II  Restrictions ]
GB
HWE09120
[7] An Example of a System to which both MA Remote Controller and ME Remote Controller are connected
(1) Sample control wiring
(2) Cautions
1)   Be sure to connect a system controller.
2)   ME remote controller and MA remote controller cannot 
both be connected to the same group of indoor units.
3)   Assign to the indoor units connected to the MA remote 
controller addresses that are smaller than those of the in-
door units that are connected to the ME remote control-
ler.
4)   No more than 2 ME remote controllers can be connected 
to a group of indoor units.
5)   No more than 2 MA remote controllers can be connected 
to a group of indoor units.
6)   Do not connect the terminal blocks (TB5) on the indoor 
units that are connected to different outdoor units with 
each other.
7)   Replace the power jumper connector of the control board 
from CN41 to CN40 on only one of the outdoor units.
8)   Provide an electrical path to ground for the S terminal on 
the terminal block for centralized control on only one of 
the outdoor units.
9)   A transmission booster must be connected to a system 
in which the total number of connected indoor units ex-
ceeds 20.
10)  A transmission booster is required in a system to which 
more than 16 indoor including one or more indoor units 
of the 72 model or above are connected.
11)  When a power supply unit is connected to the transmis-
sion line for centralized control, leave the power jumper 
connector on CN41 as it is (factory setting).
(3)  Maximum allowable length
1)   Indoor/outdoor transmission line
Same as [5] 3.
2)   Transmission line for centralized control
Same as [5] 4.
3)   MA remote controller wiring
Same as [5] 1.
4)   M-NET remote controller wiring
Same as [5] 1.
5)   Maximum line distance via outdoor unit 
(1.25 mm
2
 [AWG16] min. ) 
Same as [5] 4.
IC 
TB5 TB15 
1 2 
01 
IC 
TB5 TB15 
1 2 
02 
IC 
TB5 TB15 
1 2 
06 
106 
IC 
TB5 TB15 
1 2 
05 
A B 
MA 
A B 
RC 
A B 
MA 
IC 
TB5 
1 2 
TB15 
IC 
TB5 TB15 
1 2 
04 
03 
104 
A B 
RC 
L11 L12 
L21 L22 
TB3 
TB7 
TB3 
TB7 
TB3 
TB7 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
OC 
TB3 
TB7 
54 
OS1 
TB3 
TB7 
55 
OS2 
TB3 
TB7 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
56 
L31 
A B S 
L32 
M1 M2 
M1 M2 
M1 M2 
SW2-1 OFF    ON 
Leave the male 
connector on 
CN41 as it is. 
SW2-1 OFF    ON 
Leave the male 
connector on 
CN41 as it is. 
OC 
OS1 
OS2 
51 
52 
53 
Move the male connector 
from CN41 to CN40.
SW2-1 OFF    ON
Group
Group 
Group 
Group 
SW2-1 OFF    ON 
Leave the male 
connector on 
CN41 as it is. 
SW2-1 OFF    ON 
Leave the male 
connector on 
CN41 as it is. 
SW2-1 OFF    ON 
Leave the male 
connector on 
CN41 as it is. 
Note1 
System controller 
Note1 When only the LM adapter is connected, 
           leave SW2-1 to OFF (as it is). 
Note2 LM adapters require the power supply 
           capacity of single-phase AC 208/230V. 
To be connected
To be left 
unconnected
To be left 
unconnected
To be left 
unconnected
To be left 
unconnected
To be left 
unconnected
M1 M2 
M1 M2 
M1 M2