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9-5. SYSTEM SWITCH SETTING
In order to identify the destinations of signals to the outdoor units, indoor units, and remote controller of the MULTI-S series,
each microprocessor must be assigned an identification number (address). The addresses of outdoor units, indoor units, and
remote controller must be set using their settings switches. Please consult the installation manual that comes with each unit for
detailed information on setting procedures.
9-6. EXAMPLE EXTERNAL WIRING DIAGRAM FOR A BASIC SYSTEM
■ Example of system when using a M-NET controller
Breaker for Wiring
Power supply
and Current Leakage
3 phase 4 wire
380/400/415 V, 50 Hz
Breaker for Wiring
Power supply
and Current Leakage
single phase
220/230/240 V, 50 Hz
■ Example of system when using a Branch Box
<When power is supplied separately>
Breaker for Wiring
and Current Leakage
3N 380/400/415 V, 50 Hz
～
Breaker for Wiring
and Current Leakage
/N 220/230/240 V, 50 Hz
～
/N 220 V, 60 Hz
～
<When power is supplied from outdoor unit>
Breaker for Wiring
and Current Leakage
3N 380/400/415 V, 50 Hz
～
Breaker for Wiring
and Current Leakage
/N 220/230/240 V, 50 Hz
～
/N 220 V, 60 Hz
～
OCH576
Outdoor
unit
Pull box
1.25mm
2
× 2
Indoor unit
Outdoor
unit
Pull box
Transmission cable
1.25 mm
2
or more
(Shield cable)
M-NET control
MA-RC cable
0.3–1.25 mm
2
(0.75–1.25 mm
2
)
B1
Outdoor
B2
unit
;
Pull box
Transmission cable
1.25 mm
2
or more
(Shield cable)
MA-RC cable
0.3–1.25 mm
2
(0.75–1.25 mm
2
)
Grounded
Grounded
M-NET control
M-NET control
indoor unit
indoor unit
indoor unit
MA
MA
MA
RC
RC
RC
Grounded
M-NET control
M-NET control
indoor unit
indoor unit
MA
MA
A-control
RC
RC
indoor unit
MA
RC
135
Group operation
Remote controller wire
Branch Box
A-control
A-control
A-control
indoor unit
indoor unit
indoor unit
MA
MA
MA
RC
RC
RC
Branch Box
Branch Box
A-control
A-control
A-control
indoor unit
indoor unit
indoor unit
indoor unit
MA
MA
MA
RC
RC
RC
A-control
MA
RC
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