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9-EN
10-EN
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected tightly and in a proper
manner.
Electrical wiring
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to carry out the electrical work of the air conditioner. Under
no circumstances must this work be done by an unqualified
individual since failure to carry out the work properly may result in
electric shocks and/or electrical leaks.
• To connect the electrical wires, repair the electrical parts or
undertake other electrical jobs, wear gloves to provide protection
for electricians, insulating shoes and clothing to provide protection
from electric shocks. Failure to wear this protective gear may result
in electric shocks.
• Use wiring that meets the specifications in the Installation Manual
and the stipulations in the local regulations and laws. Use of wiring
which does not meet the specifications may give rise to electric
shocks, electrical leakage, smoking and/or a fire.
• Be sure to connect earth wire. (Grounding work)
Incomplete earthing causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning
conductor or telephone earth wires.
• After completing the repair or relocation work, check that the earth
wires are connected properly.
• Install a circuit breaker that meets the specifications in the
installation manual and the stipulations in the local regulations and
laws.
• Install the circuit breaker where it can be easily accessed by the
agent.
• When installing the circuit breaker outdoors, install one which is
designed to be used outdoors.
• Under no circumstances, the power supply wire or the indoor and
outdoor connecting wire must be connected in the middle
(Connection using a solderless terminal etc.).
Connection trouble in the places where the wire is connected in the
middle may give rise to smoking and/or a fire.
• Electrical wiring work shall be conducted according to law and
regulation in the community and installation manual.
Failure to do so may result in electrocution or short circuit.
Test run
• Before operating the air conditioner after having completed the
work, check that the electrical control box cover of the indoor unit
and service panel of the outdoor unit are closed, and set the circuit
breaker to the ON position. You may receive an electric shock if the
power is turned on without first conducting these checks.
• If there is any kind of trouble (such as check code display has
appeared, smell of burning, abnormal sounds, the air conditioner
fails to cool or heat or water is leaking) has occurred in the air
conditioner, do not touch the air conditioner yourself but set the
circuit breaker to the OFF position, and contact a qualified service
person. Take steps to ensure that the power will not be turned on
(by marking “out of service” near the circuit breaker, for instance)
until qualified service person arrives. Continuing to use the air
conditioner in the trouble status may cause mechanical problems
to escalate or result in electric shocks or other trouble.
• After the work has finished, use an insulation tester set (500V
Megger) to check the resistance is 1 M
Ω
or more between the
charge section and the non-charge metal section (Earth section).
If the resistance value is low, a disaster such as a leak or electric
shock is caused at user’s side.
• Upon completion of the installation work, check for refrigerant leaks
and check the insulation resistance and water drainage. Then
conduct a test run to check that the air conditioner is operating
properly.
