haier AE122BCAAA (H2EM-18H03) - Manual (Page 25)

24
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 manual 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 same 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 null line of the receptacle must be
strictly separated. It is incorrect to connect the null 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 orbicular
terminal, 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 theterminal
block, and then tighten screw. Pull the wire
outwards slightly to confirm it is held tightly.
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:
The wiring method of orbicular terminal
Correct pressing
Wrong pressing
Terminal block
Wire holding clamp
(Sketch map)
P
Q
OK NO
P
Q
P
Q
P
Q
1 2 3 4
Outdoor unit 1PH, 220V~,50Hz
The indoor units connected with the same outdoor unit, its creepage breaker and switch shall be
connected to the same power circuit.
The communication wire of indoor and outdoor unit is 2-core twisted-pair with polarity. (as right
figure shown)
The indoor and outdoor unit shall respectively use special power circuit.
The indoor and outdoor unit shall respectively use special power circuit.