Haier AU242FHBHA Installation Manual page 15

Installation Procedures
Electrical wiring
The air conditioner must use special power supply line.
Electric wiring should be conducted by authorized personnel. Fixed wiring should be conducted according to wiring
rules of national standards.
Ground wire and fire wire should be strictly separated. It is wrong to connect them together.
A circuit breaker is necessary when an air conditioner must be installed.
Depending on the place of installation, a circuit breaker may be necessary.
Only use copper conductor as electric wire. When conducting wiring, power wire and communication wire can
use the same threading pipe. It may cause signal trouble so the air conditioner cannot operate properly.
Power supply: connecting from outside.
Connecting type is Y. If the flexible wire is damaged, it could be only replaced by manufacturer, maintenance service
or authorized personnel.
Specification for selecting wiring and circuit breaker in job site:
Parameter
Type
Spec.
AU242FHBHA AU282FHAHA
AU242FHBIA AU282FHAIA
AU342FHAIA
AU482FIAIA AU482FIBIA
AU482FIBHA
AU522FIAIA AU522FIAKA
AU48NFIAIA AU48NFIBJA
AU48NFIBIA AU52NFIAKA
AU55NFIAIA AU60NFIAKA
Notice: In keeping the maximal running circuit, the voltage drop of the power wire is less than 2% of rated voltage.
Connecting method
1. Connecting method of annular terminal
For the connecting wiring with an annular end, connecting method of wiring is shown
right in figure. Detach the screw of connecting wire, let screw pass through the annular
of the end of connecting wiring, then connect the screw to terminal row and tighten it.
2. Connecting method of straight terminal
For the connecting wiring with a non-annular end, connecting method of wiring is: Detach
the screw of connecting wire, then fully insert the wire end to terminal row and tighten
the screw. Pull the wire slightly out to make sure its tightness.
3. Connecting method without terminals
Connect the electric wiring
D o n o t c o n n e c t t h e
with the same diameter to
electric wiring with the
both sides of connecting
same diameter to each
wiring terminal.
other.
Wire pressing method of power wire and connecting wire
After connecting wire, it is necessary to use wire clamp to press the
power wire and connecting wire closely. Be careful to press on the
outside of the connecting wire. As shown in right figure above
Notice:
When connecting wiring from indoor and outdoor, check the number
on the terminal of indoor and outdoor wiring. Use one wire to connect
terminals with same number and color. Wrong connection may cause
air conditioner controller damage or system malfunction.
Item
Power supply
---------
1PH, 220-230V~,50Hz
1PH, 220-230V~,50Hz
3N~, 380-400V,50Hz
Do not connect the
electric wiring with
different diameter.
Power wire
Power wire
(connecting to unit)
H05RN-F H05RN-F
2 ~
3 x 6mm
3x(1 1.5mm
2
~
3 x 16mm
3x(1 1.5mm
H07RN-F
~
3x(1 1.5mm
2
5 G 4mm
Connecting method for the power supply is 1PH.220-230V~ .50Hz
When installing several sets of air conditioner, the power
wire of air conditions should connect to different phase of
three-phase electric and distribute equally as far as possible.
Otherwise it may cause excessively strong current in one
phase so as to lead fires, etc.
Air conditioner1
Dangerous!
Connecting method for the power supply is 3N~.380-400V .50Hz
14
Electrical wiring
Signal wire
(connecting to unit)
circuit protector
Shielding wire
~ 2
2 2x(0.5 1mm )
)
2 ~ 2
) 2x(0.5 1mm )
~
2 2
) 2x(0.5 1mm )
1 (
L )
Good pressing
Terminal row
Wire clamp
L1Phase
L2Phase
L3Phase
zero line
Air conditioner2 Air conditioner3 Air conditioner1 Air conditioner2 Air conditioner3
Right
L1Phase
L2Phase
L3Phase
zero line
Air conditioner1 Air conditioner2 Air conditioner3
Right
Short
---------
30A
75A
20A
Connecting method
of Annular terminal
Wrong pressing
L1Phase
L2Phase
L3Phase
zero line