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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.
Electrical wiring
• Only a certifi ed installer or qualifi ed service person is allowed to
carry out the electrical work of the air conditioner.
• When connecting the electrical wires, repairing the electrical
parts or undertaking 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.
• When executing address setting, test run, or troubleshooting
through the checking window on the electric parts box, put on
insulated heat-proof gloves, insulated shoes and other clothing to
provide protection from electric shock. Otherwise you may receive
an electric shock.
• Use wiring that meets the specifi cations in the Installation Manual,
NEC and the local codes.
• Check that the product is properly grounded.
• Do not connect the ground line to a gas pipe, water pipe, lightning
conductor, or a telephone ground line.
• After completing the repair or relocation work, check that the
ground wires are connected properly.
• Install a circuit breaker that meets the specifi cations in the
Installation Manual, NEC and local codes.
• Under no circumstances must the power cable be extended.
Connection trouble in the places where the cable is extended may
give rise to smoking and/or a fi re.
• Do not supply power from the power terminal block equipped on
the outdoor unit to another outdoor unit. Capacity overfl ow may
occur on the terminal block and may result in fi re.
• Each outdoor unit should have its own power supply.
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Test run
• Before operating the air conditioner after having completed the
work, check that the electrical parts 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 fi rst conducting these
checks.
• If there is any kind of trouble (such as when a check code display
has appeared, there is a smell of burning, abnormal sounds
are heard, 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 qualifi ed 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 qualifi ed 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 failure.
• 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.
Explanations given to user
• Upon completion of the installation work, tell the user where the
circuit breaker is located. If the user does not know where the
circuit breaker is, he or she will not be able to turn it off in the
event that trouble has occurred in the air conditioner.
• If the fan grille is damaged, do not approach the outdoor unit but
set the circuit breaker to the OFF position, and contact a qualifi ed
service person to have the repairs done. Do not set the circuit
breaker to the ON position until the repairs are completed.
• After the installation work, follow the Owner's Manual to explain to
the customer how to use and maintain the unit.
Relocation
• Only a certifi ed installer or service person is allowed to relocate
the air conditioner.
• When the pump-down work is carried out shut down the
compressor before disconnecting the refrigerant pipe.
Disconnecting the refrigerant pipe with the service valve left open
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