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ENGLISH
Installation Manual 57
Electrical Wiring
Communication and Power Lines
1) Communication cable
• Type : shielding wire
• Use wires of size : over 1.0~1.5mm
2
• Maximum allowable line length: under 1,000m(3,281ft)
2) Remote control cable
• Type : 3-core cable(shielding wire)
3) Central control cable
4) Separation of communication and power lines
• If communication and power lines 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
lines where these are to be run side by side
Note:
1. The figures are based on assumed length of parallel cabling up to 100m(328 ft). For length in excess of
100m(328 ft) the figures will have to be recalculated in direct proportion to the additional length of line
involved.
2. If the power supply waveform continues to exhibit some distortion the recommended spacing in the
table should be increased.
• If the lines are laid inside conduits then the following point must also be taken into account when grouping
various lines together for introduction into the conduits
• Power lines(including power supply to air conditioner) and signal lines must not be laid inside the same
• In the same way, when grouping the lines power and signal lines should not be bunched together.
Current capacity of power line Spacing
10A 300mm(11-13/16inch)
50A 500mm(19-11/16inch)
100A 1,000mm(39-3/8inch)
Exceed 100A 1,500mm(59-1/16inch)
100V or more
CAUTION
■
If apparatus is not properly earthed then there is always a risk of electric shocks, the earthing job of the
apparatus must be carried out by a qualified person.
Product type Wire type Diameter
ACP&AC Manager (2-shielding wire,2-core wire) 1.0~1.5mm
2
AC Smart (2-shielding wire,2-core wire) 1.0~1.5mm
2
Simple central controller (2-shielding wire,2-core wire) 1.0~1.5mm
2
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