Mitsubishi Electric CMB-WP1016V-GA1 Service Handbook page 37

[ II Restrictions ]
3. An example of a system in which a system controller is connected to the indoor-outdoor transmission line (except
LM adapter)
(1) Sample control wiring
L11
CN41 CN40 Replace
Leave the male
SW2-1 OFF ON
connector on
CN41 as it is.
SW2-1 OFF ON
Note2
OS OC
52 51
TB3 TB3
M1 M2 M1 M2
TB7 TB7
M1 M2
S M1 M2
Not
Connect
L21
Leave the male Leave the male
connector on connector on
CN41 as it is. CN41 as it is.
SW2-1 OFF ON SW2-1 OFF ON
Note2
OS OC
55 54
TB3 TB3
M1 M2
M1 M2
TB7 TB7
M1 M2
M1 M2 S
Not
Connect
(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) Provide grounding to S terminal on the terminal block for transmis-
sion line for centralized control (TB7) on only one of the outdoor
units.
6) A maximum of 3 system controllers can be connected to the indoor-
outdoor transmission line, with the exception that only one G(B)-50A
may be connected.
7) When the total number of indoor units exceeds 20 (12 if one or more
indoor units of the 200 model or above is connected), it may not be
possible to connect a system controller to the indoor-outdoor trans-
mission line.
8) 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
HB HS
53 57
TB02 TB02
M1 M2 S M1 M2 S
S
Connect
HB HS
56 58
TB02 TB02
M1 M2 S M1 M2 S
S
Not Note1
Connect
System controller
A B S
L12
Group Group
IC IC
01 02
TB5 TB15 TB5 TB15
M1 M2 S 1 2 M1 M2 S
A B
1 2
MA
L22
Group
IC IC
04 05
TB5 TB5 TB15
TB15
M1 M2 S 1 2 M1 M2 S 1 2
A B
1 2
MA
m3
Note1 LM adapters cannot be connected to the indoor-outdoor transmission line.
Note2 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 in-
cluded in the connected indoor units
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
L11+L12 200m [656ft]
L21+L22 200m [656ft]
L25 200m [656ft]
2) Transmission line for centralized control
L31+L21 200m [656ft]
3) MA remote controller wiring
Same as [3] 1.
4) Maximum line distance via outdoor unit
2
[AWG16] or larger)
(1.25mm
L25+L31+L12(L11) 500m [1640ft]
L12(L11)+L31+L22(L21) 500m [1640ft]
- 28 -
Interlock operation with
the ventilation unit
Group
IC
07
TB5 TB15 TB5
1 2 M1 M2 S 1 2 M1 M2
A B A B
1 2 1 2
MA MA
Group
LC
IC
08 09
TB5 TB15 TB5
M1 M2 M1 M2 S
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)
LC
10
S
2 units
-
40 - 50
units
GB