Bedienungsanleitung Kaysun KRE (Seite 12 von 20) (Englisch)

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Communication wiring between the indoor unit and wired controller

The wired controller and the indoor unit can be connected in different manners, depending on the forms of communication.

1. For a bidirectional communication mode:

● Use 1 wired controller to control 1 indoor unit or 2 wired controllers (one master and one slave controller) to control 1 indoor unit.(see

Fig.4-4)

● Use 1 wired controller to control multiple indoor units or 2 wired controllers (one master and one slave controller) to control multiple

indoor units. The maximum number of connections is 16.(see Fig.4-5)

2. For single direction communication mode:

● Use 1 wired controller to control 1 indoor unit

● The X1/X2, D1/D2 ports on the sides of the main control board and single direction communication port are for different types of wired

controllers.

● For the specic connection method, refer to the instructions in the corresponding wired controller manual to carry out the wiring and

connections.

Handling the Electrical Wiring Connection Points

● Once the wiring and connections are done, use tie straps to secure the wiring properly so that the connection joint cannot be pulled apart

by external force. The connection wiring must be straight out so that the cover of the electrical box is level and can be closed tightly.

● Use professional insulation and sealing materials to seal and protect the perforated wires. Poor sealing may lead to condensation, and

entry of small animals and insects that may cause short circuits in parts of the electrical system, causing the system to fail.

X1 X2

X2 X1 D2 D1

X1 X2 X1 X2 X1 X2

XD1

TXR

PQX

ED2

EY EE D1

PQX

ED2

EY EE

PQX

ED2

EY EE

TXR

PQX

ED2

EY EE

Fig. 4-4

Indoor unit 1

Wired controller 1

Master wired controller

Wired controller 1 Wired controller 2

Master wired controller Slave wired controller

Indoor unit 1 Indoor unit 2 Indoor unit n(n<=16)

Slave wired controller

Wired controller 2

Fig. 4-5

Operatio Manual

There are two types of precautions as described below:

Warning: Failure to comply may lead to serious injury.

Caution: Failure to comply may lead to injury or damage of the

unit. Depending on the situation, this may also lead to serious injury.

Once the installation is completed, please keep the manual properly

for future reference. When this air conditioner is handed over to oth-

er users, make sure that the manual is included with the handover.

Warning

• Do not use this unit in locations where ammable gas may exist.

If ammable gas comes into contact with the unit, a re may

occur, which could result in serious injury.

• If this unit exhibits any abnormal behavior (such as emitting

smoke) there is a danger of serious injury. Disconnect the power

supply and contact your supplier or service engineer immediate-

ly.

• The refrigerant in this unit is safe and should not leak if the

system is designed and installed properly. However, if a large

amount of refrigerant leaks into a room, the oxygen concentra-

tion will decrease rapidly, which can cause serious injury. The

refrigerant used in this unit is heavier than air, so the danger is

greater in basements or other underground spaces. In the event

of a refrigerant leak, turn off any devices that produce a naked

ame and any heating devices, ventilate the room, and contact

your supplier or service engineer immediately.

• Toxic fumes may be produced if the refrigerant in this unit

comes into contact with naked ames (such as from a heater,

gas stove/burners, or electric appliances).

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