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System With Multiple Bc Controllers - Mitsubishi Electric PURY-HP72 Service Handbook

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[2-7 Example System with an MA Remote Controller ]
2-7-6

System with Multiple BC Controllers

(1) Sample control wiring
L11
Leave the male
Move the male connector
connector on
from CN41 to CN40
CN41 as it is.
SW5-1 OFF ON
SW5-1 OFF ON
OS1
OC
52
51
TB3
TB3
M1M2
M1M2
TB7
TB7
M1M2
S
M1M2
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.
SW5-1 OFF ON
SW5-1 OFF ON
OS1
OC
BC
55
54
TB3
TB3
M1M2
M1M2
TB7
TB7
M1M2
S
M1M2
S
To be left
To be left
unconnected
unconnected
System
controller
A B S
(2) Cautions
1)
ME remote controller and MA remote controller cannot both be con-
nected to the same group of indoor units.
2)
No more than 2 MA remote controllers can be connected to a group
of indoor units. It is not possible to connect a pair of PAR-30MAAU.
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 per-
formed only on one of the outdoor units.
5)
Short-circuit the S (shield) terminal of the terminal block for the cen-
tral control unit (TB7) and the ground terminal (
unit whose power jumper was moved from CN41 to CN40.
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 P72 and P96 models are not in-
cluded in the connected indoor units
When the P72 and P96 models are includ-
ed in the connected indoor units
The table above shows the number of transmission boost-
ers that is required by the system with three BC controllers.
For each BC controller that is subtracted from the above-
mentioned system, two additional indoor units can be con-
nected.
Refer to the DATABOOK for further information about how
many booster units are required for a given system.
7) When a power supply unit is connected to the transmission
line for centralized control, leave the power jumper connec-
HWE13080
Group
Group
BC
IC
IC
2
1
1
2
01
02
53
TB02
TB5
TB15
TB5
TB15
TB5
M1M2
S
M1M2
S
1 2
M1M2
S
1 2
M1M2
m2
A1 B2
MA
m3
Group
Group
IC
IC
3
2
1
1
2
03
05
06
56
TB5
TB5
TB15
TB5
TB02
TB15
M1M2
M1M2 S
M1M2
S
1 2
M1M2
S
1 2
S
m1
A1 B2
A1 B2
MA
MA
Note1
*1 When only the LM adapter is connected, leave SW5-1 to OFF (as it is).
*2 LM adapters require the power supply capacity of single-phase AC 208 - 230V.
) on the outdoor
Number of transmission
booster (sold separately)
required
1 unit
2 units
27 - 50
-
units
21 - 39
40 - 50
units
units
L12
Group
BS
IC
IC
IC
2
2
1
1
04
07
08
57
57
TB15
TB02
TB5
TB15
TB5
TB15
S
S
1 2
M1M2
M1M2
S
1 2
M1M2
S
A1 B2
A1 B2
MA
MA
L22
Group
IC
BS
IC
IC
3
1
1
09
10
59
TB15
TB02
TB5
TB15
TB5
TB15
1 2
M1M2
S
M1M2
S
1 2
M1M2
S
A1 B2
MA
Numbers in the square indicate port numbers.
Connection to BC controllers
Interlock operation with the ventilation unit
tor on CN41 as it is (factory setting).
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L11+L12 200m [656ft]
L21+L22 200m [656ft]
2) Transmission line for centralized control
L31+L32(L21)
3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
m1 200m [656ft]
m2+m3 200m [656ft]
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)
- 42 -
Group
BS
IC
IC
2
2
1
1
2
11
12
61
TB02
TB5
TB15
TB5
TB15
S
1 2
M1M2
M1M2
S
1 2
M1M2
S
1 2
A1 B2
MA
LC
1
14
TB5
1 2
M1M2
S
2
[AWG16] or larger)
200m [656ft]
2
[AWG22 to 16])
500m [1640ft]
500m [1640ft]
500m[1640ft]
LC
13
TB5
M1M2
S
GB

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