Haier AB072MRERA - Page 153

One way cassette
type indoor unit
145
6.9.6 Electrical wiring
WARNING
Attention
■ Electrical construction should be made with specic mains circuit by the qualied personnel according to the
installation instruction. Electric shock and re may be caused if the capacity of power supply is not sufcient.
■ During arranging the wiring layout, specied cables should be used as the mains line, which accords with the
local regulations on wiring. Connecting and fastening should be performed reliably to avoid the external force of
cables from transmitting to the terminals. Improper connection or fastness may lead to burning or re accidents.
■ There must be the ground connection according to the criterion. Unreliable grounding may cause electrical
shocks. Do not connect the grounding line to the gas pipe, water pipe, lightening rod and telephone line.
■ Only copper wire can be used. Breaker for electric leakage should be provided, or electric shock may occur.
■ The wiring of the mains line is of Y type. The power plug L should be connected to the live wire and plug N
connected to null wire while should be connected to the ground wire. For the type with auxiliary electrically
heating function, the live wire and the null wire should not be misconnected, or the surface of electrical heating
body will be electried. If the power line is damaged, replace it by the professional personnel of the manufacturer
or service center.
■ The power line of indoor units should be arranged according to the installation instruction of indoor units.
■ The electrical wiring should be out of contact with the high-temperature sections of tubing as to avoid melting the
insulating layer of cables, which may cause accidents.
■ After connected to the terminal tier, the tubing should be curved into be a U-type elbow and fastened with the
pressing clip.
■ Controller wiring and refrigerant tubing can be arranged and xed together.
■ The machine can't be powered on before electrical operation. Maintenance should be done while the power is
shut down.
■ Seal the thread hole with heat insulating materials to avoid condensation.
■ Signal line and power line are separately independent, which can't share one line. Signal line and power line
spacing greater than 100mm.
■ 5 butt lines (1.5mm) are equipped in the machine before delivery, which are used in connection between the
valve box and the electrical system of the machine. The detailed connection is displayed in the circuit diagram.
■ The power cord must go through the wire hole from the outside into the machine, the wire holes need to be
sealed with rubber ring to prevent the wear of the power line insulation sheath; the use of the process should pay
attention to the protection of the power cord. Prevent sharp objects from damaging the insulation of the power
cord. Damage to the power cord may cause fever, re and other accidents.
1. Connecting circular terminals:
The connecting method of circular terminal is shown in the Fig. Take off the screw,
connect it to the terminal tier after heading it through the ring at the end of the lead and
then tighten it.
2.Connecting straight terminals:
The connection methods for the circular terminals are shown as follows: loosen the screw before putting the line
terminal into the terminal tier, tighten the screw and conrm it has been clamped by pulling the line gently.
3.Pressing connecting line
After connecting line is completed, press the connecting line with clips
which should press on the protective sleeve of the connecting line.
Connecting
circular
terminals:
correct
pressing
wrong
pressing
terminal tier
pressing clip
Connecting