Mitsubishi Electric CMB-WM108V-AA Service Handbook page 58

[ II Restrictions ]
-6- System with Multiple HBC Controllers
(1) Sample control wiring
Move the male connector
from CN41 to CN40
SW5-1 OFF ON
OC
HB
51
TB3
M1M2
TB7
M1M2 S
To be connected
Leave the male
connector on
CN41 as it is.
SW5-1 OFF ON
OC
HB
54
TB3
M1M2
TB7
M1M2 S
To be left
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.
When a PAR-CT01MA series, PAR-4"x"MA series, or PAR-3"x"MA
series ("X" represents 0 or later) is connected to a group, no other
MA remote controllers can be connected to the same group.
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 (not required if power to the
transmission line for centralized control is supplied from a controller
with a power supply function, such as GB-50ADA).
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.)
Number of transmission booster (sold separately) required
1 unit
25 - 50 units
The table above shows the number of transmission boosters that is
required by the system with four HBC controllers. For each HBC
controller added or subtracted, subtract or add two indoor units.
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 connector on CN41 as it
is (factory setting).
HWE1708A
Group Group
IC IC
2 1 1 2
01 02
53
TB02 TB5 TB15 TB5 TB15
M1M2 S M1M2 S 1 2 S 1 2
M1M2
m2
A1 B2
MA
m3
Group Group
IC IC
3 2 1 1 2
03 05
56
TB02 TB5 TB15 TB5 TB15
M1M2
M1M2 S M1M2 S 1 2 M1M2 S 1 2
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 220 - 240V.
) on the outdoor
2 units
–
System with Multiple HBC Controllers
L12
Group
HS
IC IC
2 2 1 1
04 07
57 57
TB5 TB15 TB02 TB5 TB15
S 1 2 S S 1 2
M1M2 M1M2 M1M2
A1 B2 A1 B2
MA MA
L22
Group
IC HS
IC
3 1 1
06
09
59
TB5 TB15
TB02 TB5 TB15
S 1 2
M1M2 S M1M2 S 1 2
A1 B2
MA
Numbers in the square indicate port numbers.
Connection to HBC controllers
Interlock operation with the ventilation unit
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L12 200m [656ft]
L22 200m [656ft]
*If the power-supply distance exceeds the distance limit
of 200 meters, a transmission booster (PAC-SF46EPA-
G) is required.
2) Transmission line for centralized control
L31+L32
3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
m1 200m [656ft]
m2+m3 200m [656ft]
*1 70m [229 ft] for PAR-CT01MA series (single remote
controller only)
*To wire PAR-CT01MA series, PAR-4"x"MA series,
PAR-3"x"MA series ("X" represents 0 or later), and Sim-
ple MA remote controller, use a wire with a diameter of
0.3mm
4) Maximum line distance via outdoor unit
(1.25mm
L32+L31+L12
L32+L22
L12+L31+L22
*1 If a given system includes one or more unit or remote
controller that does not support the maximum allow-
able cable distance of 1000 m [3280 ft], the maximum
allowable cable distance in the system will be 500 m
[1640 ft]. Refer to the latest catalog for information on
which units and remote controllers support the maxi-
mum allowable cable distance of 1000 m [3280 ft].
- 49 - 49
Group
HS
IC IC
2 2 1 1
08 11
61
TB5 TB15
TB02 TB5 TB15
S 1 2 S S 1 2
M1M2 M1M2 M1M2
A1 B2
MA
LC
IC
1
10 14
TB5 TB15 TB5
M1M2 S 1 2 M1M2 S
2
[AWG16] or larger)
200m [656ft]
2
[AWG22 to 16])
*1
2
[AWG22].
2
[AWG16] or larger)
1000 m [3280ft] (500 m [1640ft])
1000 m [3280ft] (500 m [1640ft])
1000 m [3280ft] (500 m [1640ft])
LC
IC
2
12 13
TB5 TB15 TB5
S 1 2 S
M1M2 M1M2
*1
*1
*1
GB