Mitsubishi Electric R410A, Service Handbook

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[2-7 Example System with an MA Remote Controller ]
GB HWE14080
2-7 Example System with an MA Remote Controller
2-7-1 Single Refrigerant System (Automatic Indoor/Outdoor Address Startup)
(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 MA remote controllers can be connected
to a group of indoor units.
3) A transmission booster is required in a system to which
more than 32 indoor units (26 units if one or more indoor
units of the 72 model or above is connected) are con-
nected.
4) Automatic address setup is not available if start-stop in-
put (CN32, CN51, CN41) is used for a group operation of
indoor units or when multiple indoor units with different
functions are grouped in the same group. Refer to the fol-
lowing page(s). [2-7-2 Single Refrigerant System with
Two or More LOSSNAY Units](page 32)
5) For information about connecting two or more LOSSNAY
units to a system, refer to the following page(s). [2-7-2
Single Refrigerant System with Two or More LOSSNAY
Units](page 32)
(3) Maximum allowable length
1) Indoor/outdoor transmission line
Maximum distance (1.25mm
2
[AWG16] or larger)
L1 +L2+L3+L4 200m[656ft]
L1 +L2+L11+L12+L13 200m[656ft]
2) Transmission line for centralized control
No connection is required.
3) MA remote controller wiring
Maximum overall line length
(0.3 to 1.25mm
2
[AWG22 to 16])
m1 200m [656ft]
m2+m3 200m [656ft]
m4+m5 200m [656ft]
*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
[AWG18-14].
*When connecting PAR-30MAAU, use a 0.3mm
2
sheathed cable.
IC
TB5
S
TB15
1 2
00
IC
TB5
S
TB15
1 2
00
A B
MA
A B
MA
A B
RC
LC
TB5
S
00
IC
TB5
M1 M2 M1 M2 M1 M2
M1 M2 M1 M2 M1 M2
S 1 2
TB15
IC
TB5
S
TB15
1 2
00 00
IC
TB5
S
TB15
1 2
00
A B
MA
A B
MA
A B
MA
A B
MA
m1
L1
1
m2
L3 L4
L12 L13
m3
m5
m4
Interlock operation with
the ventilation unit
TB3
00 00
TB7
S
TB3
00
TB7
M1 M2 M1 M2 M1 M2 M1 M2 M1 M2 M1 M2 S
TB3 TB7
S
OC OS1 OS2
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Leave the male
connector on
CN41 as it is.
SW5-1 OFF
Group Group
Group Group
L2 L1