Safety Precautions - Toshiba RAS-M10SMUV-E Installation Manual

1 SAFETY PRECAUTIONS

• Ensure that all Local, National and International regulations are satisfied.
• Read this "SAFETY PRECAUTIONS" carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem. Follow the Owner's Manual to explain how to use and
maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner's Manual.
CAUTION
New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE
LAYER.
R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of
R410A refrigerant is approx. 1.6 times as that of refrigerant R22. Accompanied with the adoption of the new refrigerant, the
refrigeration machine oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant,
or refrigeration machine oil does not enter the new type refrigerant R410A air conditioner circuit.
To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port on main unit and
installation tools are different from those of the conventional refrigerant units. Accordingly, special tools are required for the new
refrigerant (R410A) units as shown on page 23. For connecting pipes, use new and clean piping materials with high pressure
fittings made for R410A only, so that water and/or dust does not enter. Moreover, do not use the existing piping because there are
some problems with pressure fittings and possible impurities in existing piping.
CAUTION
TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY
Disconnection from the supply mains:
The means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.
WARNING
• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.
Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply switch or breaker before attempting any electrical work.
Make sure all power switches are off. Failure to do so may cause an electric shock.
• Connect all of the installation wiring correctly.
If the installation wiring is incorrect, electrical parts may be damaged.
• When moving the air-conditioner for installation to another place, be very careful not to allow the specified refrigerant
(R410A) to become mixed with any other gaseous body into the refrigeration circuit. If air or any other gas mixes with the
refrigerant, the gas pressure in the refrigeration circuit will become abnormally high and it may result in the pipe bursting or
personnel injuries.
• Do not modify this unit by removing any of the safety guards or by overriding any of the safety interlock switches.
• Exposure of the unit to water or other forms of moisture before installation may cause a short circuit of the electrical parts.
Do not store it in a wet basement or expose to rain or water.
• The electrical work should be performed by a qualified electrician in accordance with the technical standards for electrical
equipment, internal wiring regulations, and installation manual for the electrical equipment. A dedicated circuit should be
used, and the voltage should match the rated voltage of the product. If the power supply circuit does not have enough
capacity or the work is performed improperly, an electric shock or fire can result.
• Be sure to connect the indoor and outdoor unit wires at their tips. Do not connect the wires below the tips. If the connections
and fixtures are not made properly, overheating or a fire can result.
• Connect the wiring between the indoor and outdoor units so that the cord clamp does not stick out, and attach the covers
properly. If the clamp is not attached properly, the terminal sections can overheat, and a fire or electric shock can result.
• Always use the supplied parts or specified parts for the installation work parts. Usage of different parts can cause the unit to
fall, a water leak, fire, or electric shock.
• After unpacking the unit, examine for possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Incorrect installation may result in water leakage, electric shock or a fire.
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