System In Which A System Controller Is Connected To Transmission Line - Mitsubishi Electric CMB-WP1016V-GA1 Service Handbook

[ II Restrictions ]
2. 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
L11
Move the male connector
Leave the male from CN41 to CN40.
connector on SW2-1 OFF
CN41 as it is.
SW2-1 OFF
Note 3
OS
52
TB3 TB3
M1M2 M1M2
TB7 TB7
M1M2
S M1M2
To be left
unconnected
L21
Leave the male Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
Note 3
SW2-1 OFF SW2-1 OFF
OS
55
TB3 TB3
M1M2 M1M2
TB7 TB7
M1M2 S M1M2
To be left
unconnected
(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.
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 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) 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.)
HWE1410A
OC HB
51 53
TB02 TB02
M1M2 S M1M2
S
To be connected
OC HB
54 56
TB02 TB02
M1M2 S M1M2
To be left
S
unconnected
Note1
System controller
A B S
L12
Group
HS
IC
57
01
TB5 TB15
S M1M2
S 1 2
A B
1 2
MA
L22
Group
HS
IC
58
04
TB5 TB5
TB15
S
M1M2
S 1 2 M1M2
A B
1 2
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 capacity of single-phase AC 220 - 240V.
Note3 The figures above show a system to which two outdoor units are connected,
but only a single outdoor unit can be connected in an HVRF system.
When the P200 and P250 models
are not included in the connected
indoor units
When the P200 and P250 models
are included in the connected in-
door units
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
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
Same as [3] 1.
4) Maximum line distance via outdoor unit
(1.25mm
L32+L31+L12(L11)
L32+L22(L21)
L12(L11)+L31+L22(L21)
- 26 -
Interlock operation with
the ventilation unit
Group Group
IC IC
02 07
TB5 TB15 TB5 TB15
M1M2 M1M2
S 1 2 S 1 2
A B A B
1 2 1 2
MA MA
Group
IC
IC
05
08
TB15
TB5 TB15
S 1 2 M1M2 S 1 2
A B
1 2
MA
Number of transmission booster
(sold separately) required
1 unit
27 - 50 units
21 - 39 units
2
[AWG16] or larger)
200m [656ft]
2
[AWG16] or larger)
500m [1640ft]
500m [1640ft]
500m[1640ft]
LC
10
TB5
M1M2
S
LC
09
TB5
M1M2 S
2 units
-
40 - 50 units
GB