Precautions - Toshiba RBM-A101VAE Installation Manual

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Precautions

The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.
WARNING
General
• Do not modify the products. Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.
• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its instructions
to install the air conditioner.
• Only a qualified installer or service person is allowed to do installation work. Inappropriate installation may result in
water leakage, electric shock or fire.
• Do not use any refrigerant different from the one specified for complement or replacement. Otherwise, abnormally
high pressure may be generated in the refrigeration cycle, which may result in a failure or explosion of the product or
an injury to your body.
• Before opening the electrical control box cover of the air handling unit or service panel of the outdoor unit, set the
circuit breaker to the OFF position. Failure to set the circuit breaker to the OFF position may result in electric shocks
through contact with the interior parts. Only a qualified installer (*1) or qualified service person (*1) is allowed to
remove the electrical control box cover of the air handling unit or service panel of the outdoor unit and do the work
required.
• Before carrying out the installation, maintenance, repair or removal work, set the circuit breaker to the OFF position.
Otherwise, electric shocks may result.
• Place a "Work in progress" sign near the circuit breaker while the installation, maintenance, repair or removal work
is being carried out. There is a danger of electric shocks if the circuit breaker is set to ON by mistake.
• Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights using a stand of
50 cm or more.
• Wear protective gloves and safety work clothing during installation, servicing and removal.
• Do not touch the aluminum fin of the unit. You may injure yourself if you do so. If the fin must be touched for some
reason, first put on protective gloves and safety work clothing, and then proceed.
• When work is performed at heights, use a ladder which complies with the ISO 14122 standard, and follow the
procedure in the ladder's instructions. Also wear a helmet for use in industry as protective gear to undertake the work.
• Before working at heights, put a sign in place so that no-one will approach the work location, before proceeding with
the work. Parts and other objects may fall from above, possibly injuring a person below. While carrying out the work,
wear a helmet for protection from falling objects.
• The refrigerant used by this air conditioner is the R410A.
• The air conditioner must be transported in stable condition. If any part of the product is broken, contact the dealer.
• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock when
removing the cover and main unit.
• This appliance is intended to be used by expert or trained users in shops, in light industry, or for commercial use by
lay persons.
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.
• 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.
• Due to the pressure of R410A is higher than that of other refrigerant (ex. R22), be sure to use the pipe specific for
R410A and use the special tool for the pipe processing.
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