English
5
WARNING
• Only a qualified person is allowed to perform mainte-
nance without daily maintenance.
• Before touching any of connection wirings, be sure to
turn off all power supply switches.
• Do not use flammable materials (e.g., hairspray or insec-
ticide) near the product.
Do not clean the product with organic solvents such as
paint thinner.
The use of organic solvents may cause crack damage to the
product, electric shocks, or fire.
• Contact professional personnel about attachment of
accessories and be sure to use only accessories speci-
fied by the manufacturer.
If a defect results from your own workmanship, it may result
in water leaks, electric shock or fire.
CAUTION
• Before cleaning, be sure to stop unit operation, turn the
breaker off or remove the power cord.
Otherwise, an electric shock and injury may result.
• Do not wash the air conditioner with water, as this may
result in electric shocks or fire.
• Consult your dealer regarding cleaning the inside of the
air conditioner.
Improper cleaning may cause breakage of plastic parts, water
leakage and other damage as well as electric shocks.
• Watch your steps at the time of air filter cleaning or
inspection.
High-place work is required, to which utmost attention must
be paid.
If the scaffold is unstable, you may fall or topple down, thus
causing injury.
HOW TO CLEAN THE AIR FILTER
(The air filter is a field supply.)
Clean the air filter when the display shows “Time to clean filter”.
• This message is displayed once the unit has operated for a
certain amount of time.
• Always clean the air filter at the beginning of the heating or
cooling season.
(Dust and dirt in the air filter reduce airflow, lowering the unit’s
capacity.)
• Clean the air filter more frequently when using the unit in a
dirty environment.
NOTES
• Do not remove the air filter for other than cleaning purposes.
Doing so may cause damage to the unit.
(The unit does not include an air filter as standard equip-
ment.)
• Do not install any object other than a proper air filter in the
suction inlet (for example, a paper towel). Doing so may
result in degraded performance and cause freezing or water
leakage.
1. Select “Reset Filter Indicator” on the main menu
screen and press Menu/Enter button, after the air filter
is cleaned and attached.
The “Time to clean filter” message will be turned OFF.
Refer to the operation manual provided with the Remote con-
troller.
HOW TO CLEAN AIR OUTLET AND OUTSIDE
PANELS (Field supply)
1. Clean with soft cloth.
2. When it is difficult to remove stains, use water or neu-
tral detergent.
NOTES
• Do not use gasoline, benzene, thinner, polishing powder, liq-
uid insecticide. It may cause discoloring or warping.
• Do not let the indoor unit get wet. It may cause an electric
shock or a fire.
• Do not use hot water of 122°F or higher, as doing so may
result in discoloration or deformation.
START UP AFTER A LONG STOP
Confirm the following.
• Check that the air inlet and outlet are not blocked.
Remove any obstacle.
• Check if the ground is connected.
Might there be a broken wire somewhere?
Contact your dealer if there are any problems.
Clean the air filter and outside panels.
• After cleaning the air filter, make sure to attach it.
Turn on the main power supply switch.
• The display on the remote controller will be shown when the
power is turned on.
• To protect the unit, turn on the main power switch at least 6
hours before operation.
WHAT TO DO WHEN STOPPING THE SYSTEM
FOR A LONG PERIOD
Turn on FAN OPERATION for a half day and dry the unit.
• Read the operation manual attached to the remote controller.
Turn off the power supply.
• When the main power switch is turned on, some watts of
electricity is being used even if the system is not operating.
Turn off the main power supply switch for saving energy.
• The display on the remote controller will vanish when the
main power switch is turned off.
Clean the air filter and the exterior.
• Be sure to replace the air filter to its original place after clean-
ing. Refer to “MAINTENANCE”.
7. MAINTENANCE
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