Precautions For Safety - Toshiba RAV-SM307KRTP-E Installation 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
General
• Before starting to install the air conditioner, read through the Installation Manual carefully, and follow its
instructions to install the air conditioner.
•
Only a qualifi ed installer(*1) or qualifi ed service person(*1) is allowed to do installation work. Inappropriate
installation may result in water leakage, electric shock or fi re.
•
Do not use any refrigerant different from the one specifi ed 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 front panel of the indoor 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 qualifi ed installer(*1) or qualifi ed service person(*1) is allowed to remove
the front panel of the indoor unit or service panel of the outdoor unit and do the work required.
• Before carrying out the installation, maintenance, repair or removal work, be sure to 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 qualifi ed installer(*1) or qualifi ed service person(*1) is allowed to undertake work at heights using a
stand of 50 cm or more or to remove the front panel of the indoor unit to undertake work.
• Wear protective gloves and safety work clothing during installation, servicing and removal.
•
Do not touch the aluminium fi n of the unit. You may injure yourself if you do so. If the fi n must be touched for
some reason, fi rst 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 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 cleaning the fi lter or other parts of the outdoor unit, set the circuit breaker to OFF without fail, and place
a "Work in progress" sign near the circuit breaker before proceeding with 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.
• When the air conditioner must be transported by hand, carry it by two or more people.
• Do not move or repair any unit by yourself. There is high voltage inside the unit. You may get electric shock
while removing the cover and main unit.
Selection of installation location
•
When the air conditioner is installed in a small room, provide appropriate measures to ensure that the
concentration of refrigerant leakage occur in the room does not exceed the critical level.
•
Do not install the air conditioner in a location that may be subject to a risk of exposure to a combustible gas.
If a combustible gas leaks and becomes concentrated around the unit, a fi re may occur.
• To transport the air conditioner, wear shoes with additional protective toe caps.
•
To transport the air conditioner, do not take hold of the bands around the packing carton. You may injure
yourself if the bands should break.
•
Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner,
otherwise it may cause imperfect combustion.
• Do not install in a location where fl ammable gas leaks are possible. If the gas leak and accumulate around the
unit, it may ignite and cause a fi re.
•
Install the indoor unit at least 2.5 m above the fl oor level since otherwise the users may injure themselves or
receive electric shocks if they poke their fi ngers or other objects into the indoor unit while the air conditioner is
running.
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Installation
•
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 product to fall down or topple over or give rise to noise, vibration, water leakage or other trouble.
• Carry out the specifi ed installation work to guard against the possibility of high winds and earthquake. If the air
conditioner is not installed appropriately, a unit may topple over or fall down, causing an accident.
• If refrigerant gas has leaked during the installation work, ventilate the room immediately. If the leaked
refrigerant gas comes in contact with fi re, noxious gas may generate.
•
Use forklift to carry in the air conditioner units and use winch or hoist at installation of them.
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.
•
Tighten the fl are nut with a torque wrench in the specifi ed manner. Excessive tighten of the fl are nut may
cause a crack in the fl are nut after a long period, which may result in refrigerant leakage.
•
After the installation work, confi rm that refrigerant gas does not leak. If refrigerant gas leaks into the room and
fl ows near a fi re 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.
Electrical wiring
• Only a qualifi ed installer(*1) or qualifi ed 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 unqualifi ed 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 and from heat, insulating shoes and clothing to provide protection from
electric shocks. Failure to wear this protective gear may result in electric shocks.
• Use wiring that meets the specifi cations in the Installation Manual and the stipulations in the local regulations
and laws. Use of wiring which does not meet the specifi cations may give rise to electric shocks, electrical
leakage, smoking and/or a fi re.
• Connect earth wire. (grounding work)
Incomplete grounding causes an electric shock.
• Do not connect earth wires to gas pipes, water pipes, and lightning conductor or telephone earth wires.
• After completing the repair or relocation work, check that the earth wires are connected properly.
•
Install a circuit breaker that meets the specifi cations in the installation manual and the stipulations in the local
regulations and laws.
• Install the circuit breaker where it can be easily accessed by the agent.
•
When installing the circuit breaker outdoors, install one which is designed to be used outdoors.
• Under no circumstances the power wire must not be extended. Connection trouble in the places where the
wire is extended may give rise to smoking and/or a fi re.
•
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.
Test run
•
Before operating the air conditioner after having completed the work, check that the electrical control box
cover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to the ON
position. You may receive an electric shock if the power is turned on without fi rst conducting these checks.
• If there is any kind of trouble (such as an error display has appeared, smell of burning, abnormal sounds, the
air conditioner fails to cool or heat or water is leaking) has occurred in the air conditioner, do not touch the
air conditioner yourself but set the circuit breaker to the OFF position, and contact a qualifi ed service person.
Take steps to ensure that the power will not be turned on (by marking "out of service" near the circuit breaker,
for instance) until qualifi ed service person(*1) arrives. Continuing to use the air conditioner in the trouble status
may cause mechanical problems to escalate or result in electric shocks or other trouble.
• After the work has fi nished, use an insulation tester set (500 V Megger) to check the resistance is 1 MΩ or
more between the charge section and the non-charge metal section (earth section). If the resistance value is
low, a disaster such as a leak or electric shock is caused at user's side.
•
Upon completion of the installation work, check for refrigerant leaks and check the insulation resistance and
water drainage. Then conduct a test run to check that the air conditioner is operating properly.
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