24
ENGLISH
When the 400 volt power supply is applied to “N” phase by mistake,
check damaged parts in control box and replace them.
Side panel
WARNING
The temperature sensor for outdoor air should not be exposed to
direct sunlight.
- Provide an appropriate cover to intercept direct sunlight.
!
5HP
※Pictures may differ depending on the model.
Terminal block
Main PCB
NOTE
• The figures are based on assumed length of parallel cabling up
to 100 m. For length in excess of 100 m the figures will have to
be recalculated in direct proportion to the additional length of
cable involved.
• If the power supply waveform continues to exhibit some
distortion the recommended spacing in the table should be
increased.
- If the cable are laid inside conduits then the following point
must also be taken into account when grouping various cable
together for introduction into the conduits.
- Power cable(including power supply to air conditioner) and
communication cables must not be laid inside the same
- In the same way, when grouping the power wires and
communication cables should not be bunched together.
Current capacity of power cable Spacing
100 V or more
10 A 300 mm
50 A 500 mm
100 A 1 000 mm
Exceed 100 A 1 500 mm
If apparatus is not properly earthed then there is always a risk of
electric shocks, the earthing of the apparatus must be carried out by
a qualified person.
Product type Cable type Diameter
ACP 2-core cable (Shielding cable) 1.0~1.5 mm
2
AC Smart 2-core cable (Shielding cable) 1.0~1.5 mm
2
AC Ez 4-core cable (Shielding cable) 1.0~1.5 mm
2
Communication and Power Cables
Communication cable
- Types : shielding cable
- Cross section : 1.0~1.5 mm
2
- Maximum allowable temperature: 60 °C
- Maximum allowable cable length: under 300 m
Remote control cable
- Types : 3-core cable
Central control cable
Separation of communication and power cables
- If communication and power cables are run alongside each other then
there is a strong likelihood of operational faults developing due to
interference in the signal wiring caused by electrostatic and
electromagnetic coupling.
The tables below indicates our recommendation as to appropriate
spacing of communication and power cables where these are to be
run side by side
CAUTION
!
CAUTION
!
Electric Characteristics
- Recommended circuit breaker is ELCB.
- MFA is used to select the circuit breaker and ground fault circuit
interrupter.
- Refer to the PDB about detail electric characteristics.
- After checking the rated current value of the model, use an
appropriate wire by referring to the table below.
ELCB : Earth Leakage Circuit Breaker
MFA : Maximum Fuse Amperes(A)
PDB : Product Data Book
Rated Current (A) Sectional Area (mm
2
)
≤ 0.2
Tinsel cord
> 0.2 and ≤3
0.5
> 3 and ≤6
0.75
> 6 and ≤10
1
> 10 and ≤16
1.5
> 16 and ≤25
2.5
> 25 and ≤32
4
> 32 and ≤40
6
> 40 and ≤63
10
Control box and connecting position of wiring
- Remove all of the screws at side panel and remove the panel by pulling it
forward.
- Connect communication cables between outdoor unit and indoor units
through the terminal block.
- When the central control system is connected to the outdoor unit, a
dedicated PCB must be connected between them.
- When connecting communication cable between outdoor unit and indoor
units with shielded cable, connect the shield ground to the earth screw.
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