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Installation
• Follow the instructions in the Installation Manual to install the air
conditioner. Failure to follow these instructions may cause the
product to fall down or topple over or give rise to noise, vibration,
water leakage or other failure.
• The designated bolts (M12) and nuts (M12) for securing the
outdoor unit must be used when installing the unit.
• Install the outdoor unit property in a location that is durable
enough to support the weight of the outdoor unit. Insufficient
durability may cause the outdoor unit to fall, which may result in
injury.
• Install the unit in the prescribed manner for protection against
strong wind and earthquake. Incorrect installation may result in
the unit falling down, or other accidents.
• Be sure to fix the screws back which have been removed for
installation or other purposes.
Refrigerant piping
• Install the refrigerant pipe securely during the installation
work before operating the air conditioner. If the compressor
is operated with the valve open and without refrigerant pipe,
the compressor sucks air and the refrigeration cycles is over
pressurized, which may cause a injury.
• Tighten the flare nut with a torque wrench in the specified
manner. Excessive tighten of the flare nut may cause a crack in
the flare nut after a long period, which may result in refrigerant
leakage.
• Ventilate the air if the refrigerant gas leaks during installation.
If the leaked refrigerant gas comes into contact with fire, toxic
gas may be produced.
9-EN
– 5 –
• 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, it may ignite the
R32 refrigerant and so noxious gas may be generated. For
prevention, install according to the section "Installation conditions
for each equipment".
• 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.
• If refrigerant gas leaked during the installation work, ventilate
the room immediately. If the leaked refrigerant gas comes in
contact with fire, it may ignite the R32 refrigerant and so noxious
gas may be generated. For prevention, Install according to the
section "Precautions of equipment using R32".
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.
• 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 electrical control 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.
10-EN
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