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English 8
When the timer is programmed to stop the system
after 3 hours and start the system after 4 hours,
the system will stop after 3 hours and then 1 hour
later the system will start.
After the timer is programmed, the display shows •
the remaining time.
Press the TIMER ON/OFF button once again to •
cancel programming. The display vanishes.
OPTIMUM OPERATION7.
Observe the following precautions to ensure the
system operates.
Adjust the room temperature properly for a com-•
fortable environment. Avoid excessive heating or
cooling.
Prevent direct sunlight from entering a room •
during cooling operation by using curtains or
blinds.
Ventilate the room regularly.•
Using the unit for long periods of time requires
attentive ventilation of the room.
Keep doors and windows closed. If the doors •
and windows remain open, room air will fl ow out
and cause to decrease the effect of cooling and
heating.
Do not place other heaters directly below the •
indoor unit.
They may deform due to the heat.
Never place objects near the air inlet and the air •
outlet of the unit. It may cause deterioration in
the effect or stop in the operation.
Turn off the main power supply switch when it is •
not used for long periods of time. When the main
power switch is turned on, some watts of elec-
tricity is being used even if the system is not
operating. Turn off the main power supply switch
for saving energy. When reoperating, turn on the
main power supply switch 6 hours before opera-
tion for smooth running (Refer to “MAINTE-
NANCE”).
When the display shows “ •
” (TIME TO
CLEAN AIR FILTER), ask a qualifi ed service
person to clean the fi lters (Refer to “MAINTE-
NANCE”).
MAINTENANCE8.
(FOR SERVICE PERSONNEL)
ONLY A QUALIFIED SERVICE PERSON IS
ALLOWED TO PERFORM MAINTENANCE
IMPORTANT!
BEFORE OBTAINING ACCESS TO TERMINAL •
DEVICES, ALL POWER SUPPLY CIRCUITS
MUST BE INTERRUPTED
To clean the air conditioner, be sure to stop op-•
eration, and turn the power switch off. Otherwise,
an electric shock and injury may result.
Do not wash the air conditioner with water.•
Doing so may result in an electric shock.
Be careful with a scaffold or staging.•
Caution must be exercised because of work at a
high place.
HOW TO CLEAN THE AIR FILTER
Clean the air fi lter when the display shows “ ”
(TIME TO CLEAN AIR FILTER).
Increase the frequency of cleaning if the unit is
installed in a room where the air is extremely
contaminated.
If the dirt becomes impossible to clean, change the
air fi lter (Contact your dealer when you exchange
air fi lter.).
Fig.5
Knob
Fig.6
Ta b
Hook
Open the suction grille.1.
Slide knobs (×2) simultaneously as shown and
then pull them downward. (Do the same proce-
dure for closing.) (Refer to Fig. 5)
Remove the air fi lters.2.
Push the 2 tabs up, and remove slowly lower
the air fi lter. (Refer to Fig. 6)
01_EN_3PN07753-11N.indd 801_EN_3PN07753-11N.indd 8 12/19/2008 8:00:32 PM12/19/2008 8:00:32 PM
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