LG ARUN050GME0, Engineering Product Data Book

Page: 47 / 55

7. Electrical Wiring
17
MULTI V
Modular Heat Pump
Installation Guide
7.1.2 Communication and Power Lines
1. Communication cable
• Types: shielding cable
• Cross section: 1.0~1.5mm²
• Maximum allowable temperature: 60°C
• Maximum allowable cable length: under 300m
2. Remote control cable
• Types : 3-core cable
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 powerlines
where these are to be run side by side
Note
• 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.
• 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.
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.
Product type Cable type Diameter
ACP 2-core wire (shielding wire) 1.0~1.5mm²
AC Smart 2-core wire (shielding wire) 1.0~1.5mm²
AC Ez 4-core wire (shielding wire) 1.0~1.5mm²
Current capacity of power line Spacing
100V or more
10A 300mm
50A 500mm
100A 1,000mm
Exceed 100A 1,500mm