LG ARUN Serie Manual De Instalación página 50

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Electrical Wiring
Transmission and Power Lines
1) Communication cable
• Types : shielding wire
•Use wires of size : over 1.25mm
• Maximum allowable temperature: 60°C
• Maximum allowable line length: under 1,000m(3,281ft)
2) Remote control cable
• Types : 3-core cable
3) Simple central control cable
• Types : 4-core cable (Shielding wire)
• Use wires of size : over 0.75mm
4) Separation of communication and power lines
• If communication and power lines 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
lines where these are to be run side by side
Current capacity of power line
100V or more
Note:
1. The figures are based on assumed length of parallel cabling up to 100m(328ft). For length in excess of
100m(328ft) 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.
CAUTION
I 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.
50
50
Outdoor Unit
Outdoor Unit
2
2
10A
50A
100A
Exceed 100A
Spacing
300mm(11-13/16 inch)
500mm(19-11/16 inch)
1,000mm(39-3/8 inch)
1,500mm(59-1/16 inch)

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