Toshiba MMD-UP0721HP-E1 Installation Manual page 6

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Installation
Suction duct length must be longer than 850 mm.
When the indoor unit is to be suspended, the designated hanging
bolts (M10 or W3/8) and nuts (M10 or W3/8) must be used.
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
water leakage or other trouble.
Carry out the specified installation work to guard against the
possibility of high winds and earthquake. If the air conditioner is
not installed appropriately
causing an accident.
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.
Helmet must be worn to protect your head from falling objects.
Especially, when you work under an inspection opening, helmet
must be worn to protect your head from falling objects from the
opening.
Refrigerant piping
Install the refrigerant pipe securely during the installation
work before operating the air conditioner. If the compressor
pressurized, which may cause a injury.
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– 5 –
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.
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.
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(*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.
To connect the electrical wires, repair the electrical parts or
undertake other electrical jobs, wear gloves to provide protection
for electricians, insulating shoes and clothing to provide
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protection from electric shocks.
Failure to wear this protective gear may result in electric shocks.
Use wiring that meets the specifications in the Installation
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Manual and the stipulations in the local regulations and laws.
Use of wiring which does not meet the specifications may give
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rise to electric shocks, electrical leakage, smoking and/or a fire.
Connect earth wire. (Grounding work)
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Incomplete grounding causes an electric shock.
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