Mitsubishi Electric PUHY-(E)P300, Service Handbook

Page: 37 / 302

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[
II
Restrictions ]
GB HWE07010
[5] An Example of a System to which an MA Remote Controller is connected
1. System with one outdoor unit (automatic address setup for both indoor and outdoor units)
(1) Sample control wiring
(2) Cautions
1) M-NET remote controller and MA remote controller can-
not 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 200 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. Refer to "[5] 2. Manual address setup for
both indoor and outdoor units".(page 30)
5) To connect more than 2 LOSSNAY units to indoor units
in the same system, refer to the next section "[5] 2. An
example of a system with one outdoor unit to which 2 or
more LOSSNAY units are connected".(page 30)
(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]
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
M1M2 M1M2 M1M2
M1M2 M1M2 M1M2
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.
SW2-1 OFF
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Leave the male
connector on
CN41 as it is.
SW2-1 OFF
Group Group
Group Group
L2 L1