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• After the installation work, confirm that refrigerant gas does
not leak. If refrigerant gas leaks into the room and flows near
a fire source, such as a cooking range, noxious gas may be
generated.
• 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 tightly and in a proper
manner.
Electrical wiring
• Only a qualified installer or qualified service person is allowed to
carry out the electrical work of the air conditioner. Under no circum
stances must this work be done by an unqualif ed 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 orunder
take other electrical jobs, wear gloves to provide protection for
electricians and from heat, 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 work) Incomplete grounding
causes an electric shock.
• Do not connect grounding wires to gas pipes, water pipes, and
lightning conductor or telephone grounding 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.
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• Install the circuit breaker where it can be easily accessed by the
agent.
• 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 cond itioner
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 disas ter 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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