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Mitsubishi Electronics PUHY-P144 User Manual

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[
II  Restrictions ] 
33
- 33 -
HWE08040
GB
4.  A system in which a system controller is connected to the transmission line for centralized control and which is pow-
ered from an outdoor unit
(1) Sample control wiring
(2) Cautions
1)   M-NET remote controller and MA remote controller can-
not 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 jumper connector (CN41) 
must be performed only on one of the outdoor units.
5)   Short-circuit the shield terminal (S terminal) and the 
earth terminal ( 
 ) on the terminal block for transmission 
line for centralized control (TB7) on the outdoor unit 
whose power jumper connector is mated with CN40. 
6)   A transmission booster is required in a system to which 
more than 32 indoor units (26 units if one or more indoor 
units of the 72 model or above is connected) are con-
nected.
7)   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
Maximum line distance via outdoor unit 
(1.25mm
2
 [AWG16] or larger)
L32+L31+L12(L11) 500m 
[1640ft]
L32+L22(L21) 500m 
[1640ft]
L12(L11)+L31+L22(L21) 500m[1640ft]
3)   MA remote controller wiring
Same as [5] 1.
IC
TB5
S
TB15
1 2 
01
IC
TB5
S
TB15
1 2 
02
A B 
MA 
A B 
MA 
LC
TB5
S
07
IC
TB5
S
1 2 
TB15
IC
TB5
S
TB15
1 2 
05
04
LC
TB5
S
08
IC
TB5
S
TB15
1 2 
03
A B 
MA 
IC
TB5
S
TB15
1 2 
06
A B 
MA 
A B 
MA 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
L12
L11 
L22
L21
m3
L31
A B S 
L32
Note1
System controller 
OC
TB3
TB7
S
51
Connect
Not
connect
Not
connect
m2
m1
OS1
TB3
TB7
S
52
OS2
TB3
TB7
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
S
53
OC
TB3
TB7
S
54
OS1
TB3
TB7
S
55
OS2
TB3
TB7
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
M1 M2 
S
56
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. 
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
SW2-1 OFF    ON 
CN41    CN40 Replace
Group Group 
Group 
Group
Group
Interlock operation with 
the ventilation unit 
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. 
Not
connect
Not
connect
Not
connect