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2FAN_IM_DB04307201-04_EN.book Page 6 Tuesday, December 17, 2019 6:34 PM
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 has leaked during the installation work, ventilate the
room immediately. If the leaked refrigerant gas comes in contact with
fire, noxious gas may be generated.
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.
• When connecting the electrical wires, repairing the electrical parts
or undertaking 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.
• When executing address setting, test run, or troubleshooting
through the checking window on the electric parts box, put on
insulated gloves to provide protection from electric shock.
Otherwise you may receive an electric shock.
• 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.
• Check that the product is properly earthed. (grounding work)
Incomplete earthing may cause electric shock.
• Do not connect the earth line to a gas pipe, water pipe, lightning
conductor, or a telephone earth line.
• After completing the repair or relocation work, check that the
ground wires are connected properly.
• Install a circuit breaker that meets the specifications in the installation
EN-11
manual and the stipulations in the local regulations and laws.
• Install the circuit breaker where it can be easily accessed by the
qualified service person.
• When installing the circuit breaker outdoors, install one which is
designed to be used outdoors.
• 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 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.
• Do not supply power from the power terminal block equipped on
the outdoor unit to another outdoor unit. Capacity overflow may
occur on the terminal block and may result in fire.
• When carrying out electric connection, use the wire specified in the
Installation Manual and connect and fix the wires securely to
prevent them applying external force to the terminals. Improper
connection or fixing may result in fire.
• If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in
order to avoid a hazard.
Installation of earth leakage circuit breaker
• Install the earth leakage circuit breaker that meets the stipulations
in the local regulations and laws.
• The earth leakage circuit breaker needs to have over-current
protection and leakage prevention function that can be manually reset.
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 first conducting these checks.
• When you have noticed that some kind of trouble (such as when an
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Installation Manual
EN-12
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