Installation Manual
‒
26
‒
26-EN
EN
FR
ES
Wiring between indoor unit and outdoor unit
1
Figure below shows the wiring connections between the indoor and outdoor units and
between the indoor units and remote controller. The wires indicated by the broken lines or
dot-and-dash lines are provided at the locally.
2
Refer to the both indoor and outdoor unit wiring diagrams.
3
The power of the indoor unit is supplied from the outdoor unit.
Wiring diagram
q
Single system
q
Simultaneous twin system
A B
/
S
/
/
S
/
Remote controller
Remote controller wiring
Indoor side
Outdoor side
System interconnection
wires
Power supply
A B
A B
/
S
/
/
S
/
/
S
/
Remote controller
Remote controller
inter-unit wiring
Remote controller wiring
Indoor side
Outdoor side
System interconnection wires
Power supply
Indoor power
inter-unit wiring
Indoor
side
q
Simultaneous triple and double twin system
A B
A B
A B
A B
/
S
/
/
S
/
/
S
/
/
S
/
/
S
/
Indoor side
Outdoor side
Remote controller
Remote controller
wiring
System
interconnection
wires
Power supply
Indoor
side
Indoor
side
Indoor
side
Indoor power
inter-unit wiring
Indoor power
inter-unit wiring
Indoor power
inter-unit
wiring
Remote
controller
inter-unit
wiring
Remote
controller
inter-unit
wiring
Remote
controller
inter-unit
wiring
Triple
Double twin
* Use 2-core shield wire (MVVS AWG20 to AWG16) for the remote controller wiring in the simultaneous
twin, simultaneous triple and simultaneous double twin systems to prevent noise problems. Be sure to
connect both ends of the shield wire to earth leads.
* Connect earth wires for each indoor unit in the simultaneous twin, simultaneous triple and simultaneous
double twin systems.
Wired remote controller wiring
• As the wired remote controller wire has non-polarity, there is no problem if connections to indoor unit
terminal blocks A and B are reversed.
q
Wiring diagram
A
B
A
B
Terminal block for
remote controller
wiring of indoor unit
Wired remote controller wire
(Procured locally)
Terminal block
Wired remote
controller unit
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14/1/2565 BE 16:50
14/1/2565 BE 16:50