Installation Manual

BU Module

ordinary polychloroprene sheathed cords. If the working condition changes, they should be

modified according to the related national standard.

 The specifications of the air switch listed in the table above are applied to the breaker with the

working temperature at 40 . If the working conć dition changes, they should be modified

according to the related national standard.

 The length of the recommended power cable should be less than 15 meters; otherwise, the

diameter of the power cable is not enough.

 Mentioned power cable and transmission line length is just a reference value. It may be

different depending on the condition of installation, humidity or materials, etc.

 An all-pole disconnection switch having a contact separation of at least 3mm in all poles should

be connected in fixed wiring.

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6.3 Ground Requirements

 The air conditioner is classified into the Class I appliances, so its ground ways must be reliable.

 The ground wire must be fixed on the screw hole with the sign as the right figure.

 The yellow-green wire of the air conditioner is the ground wire and must be fixed

by the tapping screw. And it cannot be used for other purpose or cut off. Otherwise, it will cause

the hazard of electric shock.

 The reliable earth terminal should be provided and the ground wire cannot be connected to any

of the following places: a. Water pipe; b. Coal gas pipe; c. Sewage pipe; d. Lightning rod

e. Telephone line f. Other unreliable places considered by a professional.

6.4 Precautions on the Electrical Wiring Work

 The ground connection should be reliable and the ground wire should be connected to the

dedicated device of the building by the professional.

 The electric installation should be carried out by the professional as instructed by the local laws,

regulations and also this manual.

 The air switch coupled with the leakage current protection switch must be equipped in the

circuits, which is of enough capacity and of both magnetic and thermal tripping functions in

case of the short circuit and overload.

 The electrical work should use a cable length enough to cover the entire distance with no

connection. If it is unavoidable, please make sure the connection should be reliable and the

external forces will not act on the wires. Otherwise it will cause electrical shock or fire etc.

 The power cable with the rated voltage and exclusive circuit for the air conditioner should be

used.

 Do not pull the power cable by force.

 The diameter of the power cable should be large enough and once it is damaged, it must be

replaced by the dedicated one.

 The multi-wire copper cable should be used for the power cable and the transmission line.

6.5 Precaution of Laying Wires

1) Use a wire stripper to strip off a length of the insulation layer at the end of the wires;

2) Loosen the screws on the terminal block of the air conditioner;

3) Press the ends of the cable tightly onto the round terminals corresponding to the size of the

screws.