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10-8. System Control
System control refers to the link wiring connection for control of simultaneous-operation multi systems, group con-
trol, and main-sub remote controller control.
10-8-1. Basic wiring diagram 1
Single type and simultaneous-operation multi system
GB
●
Simultaneous-operation multi system
Up to 4 (Double-Twin) indoor units can be connected to 1 outdoor unit for operation.
(However, coordinate the outdoor unit capacity and the total capacity of the indoor units.)
(It is not possible to connect individual remote controllers for independent operation.)
FR
●
Be careful to avoid miswiring when connecting the wires. (Miswiring will damage the units.)
(for single-phase outdoor unit)
DE
Leakage breaker
IT
Leakage breaker
PT
GR
ES
DC̲Inverter̲Eng.indd 70
DC̲Inverter̲Eng.indd 70
System address rotary switch
(Set to "0" at the time of shipment.)
Ground
Outdoor unit
L
N
1 2
Inter-unit control wiring
L
N
Indoor
U1
unit
U2
1
2
Ground
WHT
BLK
Remote controller wiring
1 2
(Optional)
Wired remote
controller
For a simultaneous-operation multi
system, a maximum of 4 indoor units
can be connected to 1 outdoor unit.
L
N
Indoor
U1
unit
U2
1
2
Ground
Remote controller crossover
wiring for group control
Fig. 10-5-1
70
L
N
Indoor
U1
unit
U2
1
2
Ground
2007/07/25 13:21:49
2007/07/25 13:21:49
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