LG Multi V ARUB Series Installation Manual page 46

Electrical Wiring
Transmission and Power Lines
1) Transmission cable
• Types : shielding wire CVVS or CPEVS
• Diameter : over 1.25mm
• Insulation material : PVC
• Maximum allowable temperature: 60°C
• Maximum allowable line length: under 220m
2) Remote control cable
• Types : 3-core cable
3) Simple central control cable
• Types : 4-core cable (Shielding wire)
• Diameter : over 0.75mm
• Insulation material : PVC
4) Separation of transmission and power lines
• If transmission and power lines are run alongside each other then here is a strong likelihood of operational
faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic cou-
pling.
The tables below indicates our recommendation as to appropriate spacing of transmission 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. For length in excess of 100m
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
conduit
• In the same way, when grouping the power lines 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.
I Use a power wire pipe for the power wiring.
46 Outdoor Unit
2
2
10A
50A
100A
100A or more
Spacing
300mm
500mm
1000mm
1500mm