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Installation
Electrical Connection
The power supply must be cut off before any electrical work is carried out. Do not conduct electrical work when the
power is on; otherwise, it may cause serious personal injury.
The air conditioning unit must be grounded reliably and must meet the requirements of the local country/region. If
the grounding is not reliable, serious personal injury due to electric leakage may occur.
Avoid bonding and connecting the communication line. If doing so is unavoidable, at the very least, ensure a
reliable connection by crimping or soldering and make sure the copper wire at the connection is not exposed;
otherwise, communication failure may occur.
The power cable and communication line must be routed separately, with a distance of over 5 cm. Otherwise,
communication failure may occur.
Keep the vicinity of the air conditioning unit as clean as possible to avoid small animals from nesting and biting the
cables. If a small animal touches or bites the cables, short circuiting or electric leakage may occur.
Do not connect the ground wire to the gas pipe, water pipe, lightning rod ground wire or telephone ground wire.
Gas pipe: Risk of explosion and fire when gas leaks.
Water pipe: If rigid plastic pipes are used, there will be no grounding effect.
Lightning rod ground wire or telephone ground wire: In the event of lightning strikes, abnormal ground potential may
rise.
After all wiring is completed, check carefully before turning on the power supply.
Installation, inspection or maintenance operations must be completed by professional technicians. All parts and
materials must comply with the relevant regulations of the local country/region.
The air conditioning unit must be equipped with a special power supply, and the power supply voltage should
conform to the nominal working voltage range of the air conditioning unit.
The power supply of the air conditioning unit must be equipped with a power disconnect device that conforms to
the requirements of relevant local technical standards for electrical equipment. The power disconnecting device
must be equipped with short circuit protection, overload protection and electric leakage protection. The clearance
between open contacts of the power disconnecting device shall be at least 3mm.
The core of the power cable must be made of copper, and the wire diameter should meet the current-carrying
requirements. For details, refer to the "Power Cable Diameter and Electric Leakage Protector Selection". A wire
diameter that is too small may cause the power cable to heat up, resulting in a fire.
The power cable and the ground wire should be secured reliably to avoid stress on the terminals. Do not pull the
power cable forcibly; otherwise, the wiring may become loosened or the terminal blocks may be damaged.
Strong current wires such as power cables cannot be connected to weak current wires such as communication
lines; otherwise, the product may be seriously damaged.
Do not bond and connect the power cable. Bonding and connecting the power cable may cause it to heat up,
resulting in a fire.
Danger
Caution
Warning
6
Summary of Contents for KSEF-22 DN5.0
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