A10762300A-rev.1 
23
7.2.2 DetailsofElectricalWiringConnection
Theelectricalwiringcapacityoftheoutdoorunitshouldbereferredaccordingto“Installation&Maintenance
Manual”oftheoutdoorunit.SettingDipSwitchmayberequireddependingonthecombinationwiththe
outdoorunit.
NOTE: 
WheninstallingtheunitinAustralia,connectthebothendsofshieldedtwistpaircable(controllercableand
controlcable)totheearth.(Refertotheitem7.3(8)fordetails.)
(1) ForUTOPIASeries 
Selectwiringcapacityaccordingtothetable7.1.InstalltheELBandthemainswitchtoeachas
showninthefollowinggures.
UseCASEBmethodwiringforAustralia.
Thecontrolcablelengthbetweentheoutdoorunitandtheindoorunitshallbelessthan75m.
< Case A >
Power Source Type:  3 Phase 4 Wires Power Source Type:  3 Phase 3 Wires
A B 1 2
Indoor Unit
Wired
Controller
(Option)
Controller Cable
(Field-Supplied)
Shielded Twist Pair Cable 0.75mm
2
This cable does not need any polarity.
Do not apply an excessively high 
voltage to this cable. (Rated Voltage: 5V)
Shielded Twist Pair Cable 0.75mm
2
This cable does not need any polarity.
Do not apply an excessively high 
voltage to this cable. (Rated Voltage: 5V)
Control CablePower Source Cable
Pay attention to the phase 
of power source when wiring. 
1
220V / 50Hz
220V / 60Hz
1N
220V / 50Hz
240V / 50Hz
220V / 60Hz
Earth Wiring
*7
*4
*5
ELB
L2
N
1 2
Earth
Wiring
Outdoor Unit
L1
A B 1 2
Indoor Unit
Wired
(Option)
Controller Cable
(Field-Supplied)
Shielded Twist Pair Cable 0.75mm
2
This cable does not need any polarity.
Do not apply an excessively high 
voltage to this cable. (Rated Voltage: 5V)
Shielded Twist Pair Cable 0.75mm
2
This cable does not need any polarity.
Do not apply an excessively high 
voltage to this cable. (Rated Voltage: 5V)
Control CablePower Source Cable
Pay attention to the phase 
of power source when wiring. 
Earth Wiring
*7
*4
*4
*5
ELB
L2
N
1 2
Earth
Wiring
Outdoor Unit
L1
Refer to “Installation & Maintenance Manual” of connected outdoor unit for
details of wire, ELB and main switch.
*4
*8
Main
Switch
Main
Switch
*8
R
L1
S
N
R
L1
S
N