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Installation
• Install the air conditioner securely in a location where the base can sustain
the weight adequately. If the strength is not enough, the unit may fall down
resulting in injury.
• 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 trouble.
• If refrigerant gas has leaked during the installation work, ventilate the room
immediately. If the leaked refrigerant gas comes in contact with fire, noxious
gas may generate.
• Use forklift to carry in the air conditioner units and use winch or hoist at
installation of them.
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.
Over tightening of the flare nut may cause a crack in the flare nut after a long
period, which may result in refrigerant leakage.
• 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 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 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.
7-EN
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Installation Manual
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