Mitsubishi Electric PURY-RP200 Service Handbook page 43

[ II Restrictions ]
3. Group operation of units in a system with multiple outdoor units
(1) Sample control wiring
(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) Provide grounding to S terminal on the terminal block for
transmission line for centralized control (TB7) on only
one of the outdoor units.
6) When the number of the connected indoor units is as
shown in the table below, one or more transmission
boosters (sold separately) are required.
To connect two transmission boosters, connect them in
parallel. (Observe the maximum number of connectable
indoor units that are listed in the specifications for each
outdoor unit.)
When the 200 and 250 models
are not included in the con-
nected indoor units
When the 200 and 250 models
are included in the connected
indoor units
HWE10140
Move the male connector
from CN41 to CN40.
SW2-1 OFF
OC BC
51 53
TB3 TB02
M1 M2 M1 M2 S
TB7
M1 M2 S
To be connected
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
OC BC
55 57
TB3 TB02
M1 M2 M1 M2
S
TB7
M1 M2 S
To be left
unconnected
Number of transmission boost-
er (sold separately) required
1 unit 2 units
27 - 50 units -
21 - 39 units 40 - 50 units
L11
Group Group
IC IC
01 03
TB5 TB15 TB5 TB15
M1 M2 S M1 M2 S
1 2 1 2
A1 B2 A1 B2
MA MA
L21
Group
IC IC
02 04
TB5 TB5
TB15
M1 M2 S
1 2 M1 M2 S
The left table shows the number of transmission boost-
ers that is required by the system with three BC control-
lers. For each BC controller that is subtracted from the
above-mentioned system, two additional indoor units
can be connected.
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L11 200m [656ft]
L21 200m [656ft]
2) Transmission line for centralized control
L31+L21 200m [656ft]
3) MA remote controller wiring
Same as [5] 1.
4) Maximum line distance via outdoor unit
2
(1.25mm [AWG16] or larger)
L11+L31+L21 500m [1640ft]
- 34 -
Interlock operation with
the ventilation unit
Group
LC
IC
06 07
TB5 TB15 TB5
S M1 M2 S
M1 M2 1 2
A1 B2
MA
IC
05
TB15 TB5 TB15
M1 M2 S
1 2 1 2
A1 B2
MA
2
[AWG16] or larger)
GB