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• When the air conditioner has been installed or relocated, follow the
instructions in the Installation Manual and purge the air completely
so that no gases other than the refrigerant will be mixed in the
refrigerating cycle. Failure to purge the air completely may cause the
air conditioner to malfunction.
• Nitrogen gas must be used for the airtight test.
• The charge hose must be connected in such a way that it is not slack.
Electrical wiring
• Only a qualified installer or qualified service person 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.
• Connect earth wire. (grounding wire) Incomplete grounding causes
an electric shock.
• Do not connect grounding wires to gas pipes, water pipes, and
lightning conductor or telephone earth wires.
• After completing the repair or relocation work, check that the
grounding 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.
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• Under no circumstances the power wire must not be extended.
Connection trouble in the places where the wire is extended 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 an error 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 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 1MΩ or more between the
charge section and the non-charge metal section (Earth/Ground
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.
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