Mitsubishi Electric PURY-HP144, Service Handbook

Page: 55 / 398

[2-8 Example System with an ME Remote Controller ]
HWE18220_GB 26
- chapter 2
2 Restrictions
2-8 Example System with an ME Remote Controller
2-8-1 System with a Connection of System Controller to Centralized Control
Transmission Line
(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 ME 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) Replace the power jumper connector of the control board
from CN41 to CN40 on only one of the outdoor units.
5) Provide an electrical path to ground for the S terminal on the
terminal block for centralized control on only one of the out-
door 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 par-
allel. (Observe the maximum number of connectable indoor
units that are listed in the specifications for each outdoor
unit.)
Œ
The table above shows the number of transmission boost-
ers that is required by the system with three BC controllers.
For each BC controller added or subtracted, subtract or add
two indoor units.
Œ
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-
tor on CN41 as it is (factory setting).
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Same as 2-7-3
2) Transmission line for centralized control
Same as 2-7-4
3) ME remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
2
[AWG22 to 16])
m1 10m [32ft]
m2+m3 10m [32ft]
If the standard-supplied cable must be extended, use a
cable with a diameter of 1.25mm
2
[AWG16]. The section
of the cable that exceeds 10m [32ft] must be included in
the maximum indoor-outdoor transmission line distance
described in 1).
When connected to the terminal block on the Simple re-
mote controller, use cables that meet the following cable
size specifications: 0.75 - 1.25 mm
2
[AWG18-16].
4) Maximum line distance via outdoor unit
(1.25 mm
2
[AWG16] or large)
Same as 2-7-4
IC
TB5
S
TB15
1 2
01
IC
TB5
S
TB15
1 2
02
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
IC
TB5
S
TB15
1 2
06
A1 B2
RC
101
A1 B2
RC
102
A1 B2
RC
103
Group
Group
Group
Group Group
To be connected
M1M2 M1M2 M1M2
M1M2 M1M2 M1M2 M1M2
L31
A B S
L32
OC
m1
TB3
TB7
M1 M2S
51
OS
TB3
TB7
M1M2
M1M2 M1M2
S
52
OC
TB3
TB7
S
55
OS
TB3
TB7
S
56
To be left
unconnected
Interlock operation with the ventilation unit
*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 220 - 240V.
System controller
Note1
SW5-1 OFF ON
Leave the male
connector on
CN41 as it is.
SW5-1 OFF ON
Leave the male
connector on
CN41 as it is.
SW5-1 OFF ON
Move the male connector
from CN41 to CN40.
SW5-1 OFF ON
Leave the male
connector on
CN41 as it is.
M1M2
M1M2 M1M2
M1M2 M1M2
To be left
unconnected
To be left
unconnected
104
A1 B2
RC
154
A1 B2
RC
m3
106
A1 B2
RC
m2
S
BC
TB02
53
S
BC
TB02
57
L12
L11
L22 L21
M1M2
M1M2
Number of transmission booster
(sold separately) required
1 unit 2 units 3 units
When the P72 and P96 models are not
included in the connected indoor units 15 - 34
units 35 - 50
units
-
When the P72 and P96 models are in-
cluded in the connected indoor units 11 - 26
units 27 - 42
units 43 - 50
units