Mitsubishi Electric MXZ-3HJ50VA Installation Manual Download Page 2

Page: 2 / 76

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1. BEFORE INSTALLATION

1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY

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1-2. SPECIFICATIONS

CAUTION

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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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Electrical work should be performed by a qualified, 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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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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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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Do not use intermediate connection of the power cord or the exten-

sion cord and do not connect many devices to one AC outlet.

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tion 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 complete-
ly 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

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the refrigerant circuit.

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Do not discharge the refrigerant into the atmosphere. If refrigerant
leaks during installation, ventilate the room.

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Check that the refrigerant gas does not leak after installation has
been completed.

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Use appropriate tools and piping materials for installation.

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When pumping down the refrigerant, stop the compressor before
disconnecting the refrigerant pipes.

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When installing the unit, securely connect the refrigerant pipes
before starting the compressor.

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The unit shall be installed in accordance with national wiring regu-
lations.

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Earth the unit correctly.

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Be sure to install an earth leakage breaker.

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Perform the drainage/piping work securely according to the installa-

tion manual.

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Do not install the outdoor unit where small animals may live.

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WARNING

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Required Tools for Installation

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ENGLISH

CONTENTS