LG Hydro Kit ARNH30GK1A4, Руководство по установке, Страница: 39 / 111

39
PIPING AND WIRING FOR INDOOR UNIT
ENGLISH
Connecting Cables
Types of the cables
The distance between communication cable and power cable
- If the power cable and communication cable are tied together, system malfunction may occur
with electrostatic, electromagnetic combination effect causing the interference signal. If
communication cable is connected along with power cable, secure at least 50 mm distance
between indoor unit power cable and communication cable.
It is the value with the assumption of the length of the parallel cable as 100 m. If it is longer
than 100 m, it shall be calculated again with proportional to the added length.
If the distortion in the waveform of the power still occurs despite securing the distance,
increase the distance.
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When several power cables are inserted into the transmission line, or tied together, make
sure to consider the following issues.
- Power cables and communication cable shall not be in the same transmission line.
- Power cables and communication cable shall not be tied together.
WARNING
!
• Are all of the indoor units and outdoor units grounded?
• If grounding is not properly done, there is a risk of electric shock. Grounding must be done
by a qualified technician.
• Consider the surrounding conditions(surrounding temperature, direct sunlight, rain water,
etc.) when wiring the cable.
• The thickness of the power cable is the minimum thickness of metal conductor cable. Use
thicker cable considering the voltage drop.
Classification Types Cables cross section
Power cable(CV) mm
2
x cores 4.0 x 3
Power cable(H07RN-F) mm
2
x cores 1.5 x 3
Communication cable(VCTF-SB) mm
2
x cores 1.0~1.5 x 2