Mitsubishi Electric PUHY-RP200 Service Handbook page 45

[ II Restrictions ]
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
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
OS2
53
TB3
M1 M2
TB7
M1 M2 S
To be left
unconnected
Leave the male
connector on
CN41 as it is.
SW2-1 OFF ON
OS2
56
TB3
M1 M2
TB7
M1 M2 S
To be left
unconnected
(2) Cautions
1) ME remote controller and MA remote controller cannot
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 200 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).
HWE10130
L11
Move the male connector
Leave the male
connector on from CN41 to CN40.
CN41 as it is.
SW2-1 OFF ON
SW2-1 OFF ON
OS1 OC
52 51
TB3 TB3
M1 M2 M1 M2
TB7 TB7
M1 M2 S M1 M2 S
To be left
unconnected
To be connected
L21
Leave the male Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
SW2-1 OFF ON SW2-1 OFF ON
OS1 OC
55 54
TB3 TB3
M1 M2 M1 M2
TB7 TB7
M1 M2 S M1 M2 S
To be left
unconnected
To be left
unconnected
System controller
A B S
L12
Group Group
IC IC
01 02
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S 1 2
A B A B
MA
L22
Group
IC IC
04 05
TB5 TB5 TB15
TB15
M1 M2 S 1 2 M1 M2 S 1 2
A B
MA
m3
Note1 When only the LM adapter is connected,
leave SW2-1 to OFF (as it is).
Note2 LM adapters require the power supply
Note1
capacity of single-phase AC 208/230V.
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as [5] 3.
2) Transmission line for centralized control
L31+L32(L21)
3) MA remote controller wiring
Same as [5] 1.
4) Maximum line distance via outdoor unit
2
(1.25mm [AWG16] or larger)
L32+L31+L12(L11)
L32+L22(L21)
L12(L11)+L31+L22(L21)
- 36 -
Interlock operation with
the ventilation unit
Group
IC
03 07
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B
MA MA
Group
LC
IC
08
06
TB5 TB15 TB5
M1 M2 S 1 2 M1 M2 S
A B
MA
200m [656ft]
500m [1640ft]
500m [1640ft]
500m[1640ft]
LC
GB