Optimum Operation; Maintenance (For Service Personnel) - Daikin FCQ18PVJU Operation Manual

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.
7.

OPTIMUM OPERATION

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 "
CLEAN AIR FILTER), ask a qualifi ed service
person to clean the fi lter (Refer to MAINTE-
NANCE).
English
ONLY A QUALIFIED SERVICE PERSON IS
ALLOWED TO PERFORM MAINTENANCE
IMPORTANT!
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.)
" (TIME TO
8. MAINTENANCE
(FOR SERVICE PERSONNEL)
• 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.
1. Open the suction grille.
Slide the latches (×2) outward to the side and
carefully lower the grille.
(Do the same procedure for closing.)
"
8