Haier AU282FHAHA Service Manual page 24

5.7 Electric wiring
Electric wiring
Note:
The air conditioner must use special circuit (over 45A), and wiring by the qualified
electrician according to the wiring rules specified in national standard.
The grounding wire and the neutral wire shall be strictly separated. Connect the neutral
wire with grounding wire is incorrect.
The electric leakage breaker must be installed.
All the electric wire must be copper wire.When wiring,there shall keep a proper distance
between the power line and communication wire to avoid twist together.Otherwise,signal
disturbance will occur,and the air conditioner can not operate normally.
Power supply:1PH,220-230V~,50Hz, the power supply connects from the outdoor side.
The wiring method of power line is Y connection. If the power line is damaged,in order
to avoid risk of electric shock, it must be replaced by the manufacturer or its repair center
or other similar qualified person.
Specification of wire and short circuit protector in site wiring:
Fuse: T.45A/250VAC
Type
Power line
Contents
Specificat on i H07RN-F
Parameter
3G6mm
Note:The signal wire must be shielded .
Wiring method
1. Wiring method of orbicular terminals
For the connection wire with orbicular terminals, its wiring method
is as shown in the right figure: remove the connecting screw, put the
screw through the ring on the end of the wire, then connect to the
terminal block and fasten screw.
2. Wiring method of straight terminals
For the connection wire without orbicular terminals, its wiring
method is: loosen the connection screw, and insert the end of
the connection wire completely into the Termina l block, then
fasten the screw. Slightly pull the wire outwards to confirm it is
firmly held
3. Crimp connection method for wires without terminals
Connect the wire with
same diameter to the
two sides of the terminal
Crimp connection method for connection wire
After connection,the wire must be fastened by wire cover. The wire cover shall press on the
protection coat of the connection wire,as shown in right top figure.
Note:When connecting the wiring,confirm the terminal number of indoor and outdoor units
carefully. The terminals with same number and color connect with a same wire. Incorrect
wiring will damage the controller of air conditioner or the unit can not operate.
Commercial Air Conditioner
Connection wire Connection signal wire
H05RN-F
2 2
3G(1~1.5mm
Do not connect the
wire with same diameter
to the same side
- 23 -
2
) 2x(1.0~1.5mm )
Correct Pressing
Do not connect the
wire with different
diameters
Model: AU282FHAHA
Short circuit
protector
45A
Wiring Method for
Ring Terminal Block
Wrong Pressing
Terminal
block
Pressing
Clamps