Hitachi RPC-3.0FSN3 - Details of Electrical Wiring Connection

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7.2.2 Details of Electrical Wiring Connection
The electrical wiring capacity of the outdoor unit should be referred according to “Installation & Maintenance
Manual” of the outdoor unit. Setting Dip Switch may be required depending on the combination with the
outdoor unit.
NOTE:
When installing the unit in Australia, connect the both ends of shielded twist pair cable (remote control
switch cable and control cable) to the earth. (Refer to the item 7.3 (8) for details.)
(1) For UTOPIA Series
Select wiring capacity according to the table 7.1. Install the ELB and the main switch to each as
shown in the following gures.
Use CASE B method wiring for Australia.
The control cable length between the outdoor unit and the indoor unit shall be less than 75m.
< Case A >
Power Source Type: 3 Phase 4 Wires Power Source Type: 3 Phase 3 Wires
AB12
Indoor Unit
Remote
Control Switch
(Option)
Remote Control
Switch 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
12
Earth
Wiring
Outdoor Unit
L1
AB12
Indoor Unit
Remote
Control Switch
(Option)
Remote Control
Switch 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
12
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