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8. Electrical Wiring
8.1.2 Communication and Power Cables
1) Communication cable
- Types : shielding cable
- Cross section : 1.0~1.5mm
- Maximum allowable temperature: 60°C
- Maximum allowable cable length: under 300m
2) Remote control cable
• Types : 3-core cable
3) Central control cable
Product type
ACP
AC Smart
AC Ez
4) Separation of communication and power cables
• If communication and power cables are run alongside each other then there is a strong likelihood of opera-
tional 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
100V or more
Note:
• The figures are based on assumed length of parallel cabling up to 100m. For length in excess of 100m the fig-
ures 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 togeth-
er.
CAUTION
• 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.
• Use a power wire pipe for the power wiring.
2
2-core cable (Shielding cable)
2-core cable (Shielding cable)
4-core cable (Shielding cable)
Current capacity of power cable
Exceed 100A
Cable type
10A
50A
100A
Diameter
1.0~1.5mm
2
1.0~1.5mm
2
1.0~1.5mm
2
Spacing
300mm
500mm
1,000mm
1,500mm
_ 23
R410A(50/60Hz)
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