Precautions For Safety - Toshiba MML-AP0074NH-E Service Manual

1. PRECAUTIONS FOR SAFETY

The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual.
WARNING
Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air
conditioner by following its instructions.
Only qualified service person (*1) is allowed to repair the air conditioner.
Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks
and/or other problems.
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.
Do not use any refrigerant diff erent 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.
Wear protective gloves and safety work clothing during installation, servicing and remova l.
When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs, wear
gloves to provide protection for electricians and from heat, insulating shoes and clothing to provide protection
from electric shocks.
Failure to wear this protective gear may result in electric shocks.
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.
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 or to remove the intake grille of the indoor unit to
undertake work.
General
When working 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.
When 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.
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.
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.
Do not climb onto or place objects on top of the outdoor unit.
You may fall or the objects may fall off of the outdoor unit and result in injury.
When transporting the air conditioner, wear shoes with additional protective toe caps.
Be sure that a heavy unit (10kg or heavier) such as a compressor is carried by two persons.
This air conditioner has passed the pressure test as specified in IEC 60335-2-40 Annex EE.
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.
When checking the electric parts, removing the front panel of indoor unit and/or service panel of outdoor
unit inevitably to determine the failure, use gloves to provide protection for electricians and from heat,
insulating shoes, clothing to provide protection from electric shock and insulating tools. Be careful not to
touch the live part. Electric shock may result. Only "Qualified service person" is allowed to do this work.
When checking the electric parts, removing the front panel of indoor unit and/or service panel of outdoor
unit inevitably to determine the failure, put a sign "Do not enter" around the site before the work. Failure to
do this may result in third person getting electric shock.
Refrigerant shall be replaced by nitrogen gas when repair with gas burner is needed. Oil attached to pipes
may result in fire.
Exchange to parts specified in service manual, which meet the specification or listed in parts list of service
manual. Failure to use specified parts may result in electrical shock, smoke, and/or fire.
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