Bedienungsanleitung Kaysun KHPI-BI-16VR2XL (Seite 21 von 44) (Englisch)

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A main switch or other means of disconnection, having a contact separation in all poles, must be incorporated in the

fixed wiring in accordance with relevant local laws and regulations. Switch off the power supply before making any

connections. Use only copper wires. Never squeeze bundled cables and make sure they do not come in contact with

the piping and sharp edges. Make sure no external pressure is applied to the terminal connections. All field wiring and

components must be installed by a licensed electrician and must comply with relevant local laws and regulations.

The field wiring must be carried out in accordance with the wiring diagram supplied with the unit and the instructions

given below.

Be sure to use a dedicated power supply. Never use a power supply shared by another appliance.

Be sure to establish a ground. Do not ground the unit to a utility pipe, surge protector, or telephone ground. Incomplete

grounding may cause electrical shock.

Be sure to install a ground fault circuit interrupter (30 mA). Failure to do so may cause electrical shock.

Be sure to install the required fuses or circuit breakers.

This unit is equipped with an inverter. Installing a phase advancing capacitor not only will reduce the power factor

improvement effect, but also may cause abnormal heating of the capacitor due to high-frequency waves. Never install a

phase advancing capacitor as it could lead to an accident.

Fix cables so that cables do not make contact with the pipes (especially on the high pressure side).

Secure the electrical wiring with cable ties as shown in figure so that it does not come in contact with the piping, particularly

on the high-pressure side.

Make sure no external pressure is applied to the terminal connectors.

When installing the ground fault circuit interrupter make sure that it is compatible with the inverter (resistant to high

frequency electrical noise) to avoid unnecessary opening of the ground fault circuit interrupter.

NOTE

The ground fault circuit interrupter must be a high- speed type breaker of 30 mA (<0.1 s).

7.1 Precautions on electrical wiring work

7 FIELD WIRING

WARNING

Equipment must be grounded.

All high-voltage external load, if it is metal or a grounded port, must be grounded.

All external load current is needed less than 0.2A, if the single load current is greater than 0.2A, the load must be controlled

through AC contactor.

7.2 Precautions on wiring of power supply

Use a round crimp-style terminal for connection to the power supply terminal board. In case it cannot be used due to

unavoidable reasons, be sure to observe the following instructions.

Do not connect different gauge wires to the same power supply terminal. (Loose connections may cause overheating.)

When connecting wires of the same gauge, connect them according to the figure below.

NOTE

Maximum length of communication wirings is 50m.

Power cords and communication wiring must be laid out separately, they can not be placed in the same conduit.

Otherwise, it may lead to electromagnetic interference. Power cords and communication wirings should not come in

contact with the refrigerant pipe so as to prevent the high temperature pipe from damaging the wires.

Communication wirings must use shielded lines.Including indoor unit to outdoor unit PQE line ,indoor unit to controller

ABXYE line.

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