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Connecting Cables
Types of the cables
Classification
Power cable(CV)
Communication cable(VCTF-SB)
The distance between communication cable and power cable
- If the power cable and communication cable are too close 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 50mm(Minimum 2
inches) distance between indoor unit power cable and communication cable.
- Cut the cable 1.5m longer than the pipe length.
It is the value with the assumption of the length of the parallel cable as 100 m. If it is longer than
It is the value with the assumption of the length of the parallel cable as 100 m. If it is longthan 00m,
100m, it shall be calculated again with proportional to the added length.
it shall be calculated again with proportional to the added length.
If the distance is secured as the previous page, and the distortion in the waveform of the power still
If the distortion in the waveform of the power still occurs despite securing the distance, increase
occurs, increase the distance.
the distance.
※ When several power cables are inserted into the transmission line, or tied together, make sure to
h When several power cables are inserted into the transmission line, or tied together, make
consider the following issues.
sure to consider the following issues.
- Power cables and communication lines shall not be in the same transmission line.
- Power cables and communication cable shall not be in the same conduit.
- Power cables and communication lines shall not be tied together.
- Power cables and communication cable shall not be too close 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.
Oversize cable as necessary to maintain the power supply at the unit within ±10% of
nameplate voltage.
types
Cable cross section
mm
2
mm
2
Hydro Kit Installation Manual 23
Installation
2.5
1.0~1.5
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