Table of Contents
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.
31 21
Electrical requirement
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
*1
2
Cable
Cable size (mm
)
Type
Remarks
Type 60245
2 cable + Earth (Ground),
Power supply cable
4.0
IEC 66
1 Ø 230V
Type 60245
3 cable + Earth (Ground),
Connection cable
1.5
IEC 57
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.
*2
Breaker
Specification
Circuit breaker (over current)
Current : 25 (A)
*3
Earth leakage breaker
Leakage current : 30mA 0.1sec or less
*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.
31 21
Unit wiring
•
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.
Power supply cable
Earth (Ground) wire
Connection cable
Earth (Ground) wire
How to connect wiring to the terminal
Caution when wiring cable
(1)
Use crimp-type terminals with insulating sleeves as shown in the figure to
connect to the terminal block.
(2)
Securely clamp the crimp-type terminals to the wires using an appropriate tool
so that the wires do not come loose1
(3)
Use the specified wires, connect them securely, and fasten them so that there is
no stress placed on the terminals1
(4)
Use an appropriate screwdriver to tighten the terminal screws. Do not use a
screwdriver that is too small, otherwise, the screw heads may be damaged and
prevent the screws from being properly tightened.
(5)
Do not tighten the terminal screws too much, otherwise, the screws may break.
(6)
See the table below for the terminal screw tightening torques1
Strip : 10mm
Crimp-type
terminal
Sleeve
Screw with
Screw with special washer
special washer
Crimp-type terminal
Wire
Crimp-type
terminal
Terminal blocks
Wire
Tightening torque [N·m (kgf·cm)]
M4 screw
1.2 to 1.8 (12 to 18)
31 41
Connection diagrams
OUTDOOR UNIT
INDOOR UNIT
Connection cable
1
1
2
2
D
D
3
3
Connection cable
1
1
C
2
2
C
3
3
Connection cable
Power cable
1
1
2
2
B
B
230V
3
3
50 Hz · 1ø
L
Connection cable
POWER
N
1
1
2
2
A
EARTH
A
3
3
(GROUND)
31 31
Outdoor unit
Hook
(3 places)
(1)
Service panel removal
•
Remove the two mounting
screws.
•
Remove the service panel
by pushing downwards.
Direction of the
service panel
removal
Service
panel
Power cable
UNIT D
connection
cable
(2)
Connect the power supply
UNIT C
cable and the connection
connection
cable
cable to terminal.
UNIT B
connection
cable
UNIT A
connection
cable
(3)
Fasten the power supply
cable and connection
cable with cable clamp.
UNIT A
UNIT B
UNIT C
UNIT D
En-6
Hide quick links:
Table of Contents
