En-6
CAUTION
The static electricity that is charged to the human body can damage the control PC
Board when handling the control PC Board for address setting, etc.
Please keep caution to the following points.
Provide the grounding of Indoor unit, Outdoor unit and Option equipment.
Cut off the power supply (breaker).
Touch the metal section (such as the unpainted control box section) of the indoor or
outdoor unit for more than 10 seconds. Discharge the static electricity in your body.
Never touch the component terminal or pattern on the PC Board.
Electrical requirement
31 21
CAUTION
Be sure to install a breaker of the specified capacity.
Regulation of cables and breaker differs from each locality, refer in accordance with
local rules.
Voltage rating
1Φ 230V (50Hz)
Operating range
198-264V
Cable
Cable size (mm
2
)
*1
Type
Remarks
Power supply cable
4.0
Type 60245
IEC 66
2 cable + Earth (Ground),
1 Ø 230V
Connection cable
1.5
Type 60245
IEC 57
3 cable + Earth (Ground),
1 Ø 230V
*1
Selected sample: Select the correct cable type and size according to the country or
region’s regulations.
Max. wire length: Set a length so that the voltage drop is less than 2%. Increase the
wire diameter when the wire length is long.
Breaker
Specification
*2
Circuit breaker (over current)
Current : 25 (A)
Earth leakage breaker
Leakage current : 30mA 0.1sec or less
*
3
*2
Select the appropriate breaker of the described specification according to the national
or regional standards.
*3
Select the breaker that enough load current can pass through it.
Before starting work check that power is not being supplied to all poles of the indoor unit
•
and outdoor unit.
Install all electrical works in accordance to standard.
•
Install the disconnect device with a contact gap of at least 3mm in all poles nearby the
•
units. (Both indoor unit and outdoor unit)
Wiring size must comply with the applicable local and national code.
•
Unit wiring
31 21
When stripping off the coating of a lead wire, always use a special tool such as a wire
•
stripper. If there is no special tool available, carefully strip the coating with a knife etc.
Earth (Ground) wire
30 mm
100 mm or more
Power supply cable
Earth (Ground) wire
15 mm
60 mm or more
Connection cable
How to connect wiring to the terminal
Caution when wiring cable
Use crimp-type terminals with insulating sleeves as shown in the figure to
(
1
)
connect to the terminal block.
Securely clamp the crimp-type terminals to the wires using an appropriate tool
(
2
)
so that the wires do not come loose1
Use the specified wires, connect them securely, and fasten them so that there is
(
3
)
no stress placed on the terminals1
Use an appropriate screwdriver to tighten the terminal screws. Do not use a
(
4
)
screwdriver that is too small, otherwise, the screw heads may be damaged and
prevent the screws from being properly tightened.
Do not tighten the terminal screws too much, otherwise, the screws may break.
(
5
)
See the table below for the terminal screw tightening torques1
(
6
)
Strip : 10mm
Wire
Terminal blocks
Crimp-type
terminal
Sleeve
Wire
Crimp-type
terminal
Screw with
special washer
Screw with special washer
Crimp-type terminal
Tightening torque [N·m (kgf·cm)]
M4 screw
1.2 to 1.8 (12 to 18)
Connection diagrams
31 41
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
OUTDOOR UNIT
Power cable
EARTH
(GROUND)
D
D
C
C
B
B
A
L
N
A
POWER
230V
50 Hz · 1ø
INDOOR UNIT
Connection cable
Connection cable
Connection cable
Connection cable
Outdoor unit
31 31
Service panel removal
(
1
)
Remove the two mounting
•
screws.
Remove the service panel
•
by pushing downwards.
Hook
(3 places)
Service
panel
Direction of the
service panel
removal
Connect the power supply
(
2
)
cable and the connection
cable to terminal.
Power cable
UNIT D
connection
cable
UNIT C
connection
cable
UNIT B
connection
cable
UNIT A
connection
cable
Fasten the power supply
(
3
)
cable and connection
cable with cable clamp.
UNIT A
UNIT B
UNIT C
UNIT D
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