Mitsubishi Electric MSZ-EF25-50VG Installation Manual

SPLIT-TYPE AIR CONDITIONERS
INSTALLATION MANUAL
1. BEFORE INSTALLATION
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
WARNING
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1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
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■ Do not install the unit by yourself (user).
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■ Perform the installation securely referring to the
installation manual.
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■ When installing the unit, use appropriate protective
equipment and tools for safety.
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■ Install the unit securely in a place which can bear
the weight of the unit.
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experienced electrician, according to the installation
manual. Be sure to use an exclusive circuit. Do not
connect other electrical appliances to the circuit.
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■ Earth the unit correctly.
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■ Do not damage the wires by applying excessive
pressure with parts or screws.
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■ Be sure to cut off the main power in case of setting
up the indoor P.C. board or wiring works.
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the terminal block connecting sections so the stress
of the wires is not applied to the sections. Do not
extend the wires, or use intermediate connection.
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gas may leak.
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■ Do not use intermediate connection of the power
cord or the extension cord and do not connect many
devices to one AC outlet.
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■ Install an earth leakage breaker depending on the
installation place.
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■ Perform the drainage/piping work securely ac-
cording to the installation manual.
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REFRIGERANT
Model names are indicated in 1-3.
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for the installation work.
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■ When plugging the power supply plug into the
outlet, make sure that there is no dust, clogging,
or loose parts in both the outlet and the plug. Make
sure that the power supply plug is pushed com-
pletely into the outlet.
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■ Attach the electrical cover to the indoor unit and the
service panel to the outdoor unit securely.
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■ When installing, relocating, or servicing the unit,
make sure that no substance other than the speci-
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■ Do not discharge the refrigerant into the atmos-
phere. If refrigerant leaks during installation, ven-
tilate the room. Check that the refrigerant does not
leak after installation has been completed.
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■ Use appropriate tools and piping materials for instal-
lation.
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the outdoor unit.
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■ Do not install the outdoor unit where small animals
may live.
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WARNING
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■ When pumping down the refrigerant, stop the com-
■ When installing the unit, securely connect the re-
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■ The unit shall be installed in accordance with na-
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■ Do not use means to accelerate the defrosting pro-
■ The appliance shall be stored in a room without
■ Do not pierce or burn.
■ Be aware that refrigerants may not contain an odour.
■ Pipe-work shall be protected from physical damage.
■ The installation of pipe-work shall be kept to a
■ Compliance with national gas regulations shall be
■ Keep any required ventilation openings clear of
CAUTION
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■ Do not operate the air conditioner during interior
Required Tools for Installation
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pressor before disconnecting the refrigerant pipes.
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frigerant pipes before starting the compressor.
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in this manual.
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tional wiring regulations.
equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
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cess or to clean, other than those recommended by
the manufacturer.
continuously operating ignition sources (for exam-
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operating electric heater).
minimum.
observed.
obstruction.
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