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77
7
RC
(WL)
62
S4359146
7-16. Basic Wiring Diagram
Install wiring correctly
(incorrect wiring will damage
the equipment).
CAUTION
● Use shielded wires for inter-unit control wiring and
ground the shield on both sides. (Fig. 7-25)
Otherwise misoperation because of noise may
occur.
● Wiring procedure
Install the wiring according to the above wiring
diagram.
● The address setting is automatically ex-
ecuted after turning on the system.
An indoor unit address is assigned to each
indoor unit.
● Operation takes place successively at
intervals of 1 second, by using combinations
of the address setting of each unit.
Shielded wire
0797_M_I
ground
ground
Fig. 7-25
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
: Ground (earth)
Outdoor unit
Indoor unit
No. 8
Indoor unit
No. 3
Indoor unit
No. 2
Indoor unit
No. 1
1
2
Group
control
Connection wiring
for group control
Standard
remote control
Multiple
remote control
2036_M_I
1
2
1
2
1
2
Inter-unit control wiring
Terminal
3P
2031_M_I
Inter-unit wiring
Group-control wiring
(Main) (Sub)
Indoor
unit 8
Indoor
unit 7
Indoor
unit 2
Indoor
unit 1