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Toshiba XXXXXXX(X/X)
–23–
4-way Air Discharge Cassette Type
Owner’s Manual
Be careful with noise or vibrations
• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet
annoys your neighbors.
• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,
operation noise and vibration.
• If one indoor unit is operating, some sound may be audible from other indoor units that are not
operating.
WARNING
Re-Installation
Ask the dealer or an installation professional to re-install the air conditioner to a new place or move it to
another place and to observe the following items.
If the air conditioner is inappropriately installed by yourself, it may cause electric shock or fire.
Maintenance
• For Air conditioning system which is operated regularly, cleaning and maintenance of the indoor/
outdoor units are strongly recommended.
As a general rule, if an indoor unit is operated for about 8 hours daily, the indoor/outdoor units will need
to be cleaned at least once every 3-month. This cleaning and maintenance shall be carried out by a
qualified person.
Failure to clean the indoor/outdoor units regularly will result in poor performance, freezing, water
leaking and even compressor failure.
• This product incorporates a drain pump.
If it is used in a place full of dust or oil mist, the pump will be clogged and proper drainage is disabled.
Clean the drain pump periodically. For how to clean the drain pump, contact the dealer.
CAUTION
Be sure to clean the heat exchanger with pressurized water.
If an commercially detergent (strong alkaline or acid cleaning agent) is used, the surface treatment of the
heat exchanger will be marred, which may degrade the self cleaning performance.
For details, contact the dealer.
14TROUBLES AND CAUSES
CAUTION
If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer :
• Switch operation does not work properly.
• The main power fuse often blows out, or the circuit breaker is often activated.
• A foreign matter or water fall inside the air conditioner.
• When the air conditioner does not operate even after the cause of the protective device activation has been
removed. (The operation lamp and
on the remote controller are flashing.)
• Any other unusual conditions are observed.
23-EN
+00EH99930901-2_10L_4-way_OM.book Page 23 Friday, April 17, 2009 2:39 PM