Installation procedure
Electric wiring
Note:
All the wires should be copper core wires.
The power cable of indoor unit should be equipped according to the operation manua of indoor unit.
Before finishing vacuumizing the refrigerant pipe system, do not supply power to indoor unit.
When connecting the indoor & outdoor wire, check the number of the indoor & outdoor terminals, the terminals with the same number connected together with one wire.
Incorrect wiring will damage the controller of the air conditioner or make the unit work abnormally.
The air conditioner must use special power circuit and special air switch (40A), groundign wire. The wiring work should be done by a qualified electrician according to the national wiring rule.
The creepage breaker must be installed. The grounding line and the neutral line of the receptacle must be strictly separated. It is incorrect to connect the neutral line with the grounding line.
The connection type of power cord is Y connection. If the soft power cord is damaged, to avoid risk, it must be replaced by the manufacturer or their specific repair department or similar professional worker.
Wiring method
1.The wiring method of orbicular terminal
For the connection wire which end is orbicularterminal, its wiring method is as the right figure shown.
Dismantle the screw and put it through the ring at the end of the connection wire, then connect it to the terminal block and tighten the screw.
2.The wiring method of straight terminal For those connection wires whose end are not orbicular terminals, their wiring method is: Loosen the connecting screw, insert the end of the wire directly into the terminal block, and then tighten screw. Pull the wire outwards slightly to confirm it is held tightly.
The wiring method of orbicular terminal
Correct pressing | Wrong pressing |
| |
| Terminal block |
| Wire holding clamp |
| (Sketch map) |
3.Pressing method of connection wire:
After wiring, the connection wire must be pressed with wire holding clamp. The wire holding clamp should press on the out cover of the connection wire. As the right figure shown:
Connect wire between indoor & outdoor unit
Terminal block of |
| |||
indoor unit |
| Y/G | ||
1 | 2 | 3 | ||
| ||||
1 2 3 
Y/G
Terminal block of outdoor unit
Power supply: 
L1 L2 L3 N
Terminal block of outdoor unit
As the wiring diagram show to arrange the connection wire.
Note: The terminal block's mark at the two ends of the connection wire should be corresponding one by one, otherwise the air conditioner cannot work normally.
The power cable and connecting cable are self- provided. The power cable shoule be 5x6.0mm2; the connecting cable should be 4x1.0mm2.
Selection of size of power supply and interconnecting wires.
Item |
| Circuit | breaker |
|
|
| |
Model | Phase | Switch breaker | Overcurrent protector |
| (A) | rated capacity (A) | |
3 | 40 | 30 | |
|
|
|
|
Power source
wire size
(minimum)
6.0mm2
Earth leakage breaker
Switch | Leak |
breaker | current |
40 | 30mA |
|
|
26