Optimum Operation; Maintenance (For Service Personnel) - Daikin FCQ71KVEA Operation Manual

• Press the TIMER ON/OFF button once again to cancel
programming. The display vanishes.
For example:
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.

OPTIMUM OPERATION

Observe the following precautions to ensure the system oper-
ates.
• Adjust the room temperature properly for a comfortable
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 flow out and cause to decrease
the effect of cooling and heating.
• 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 supply
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. When reoperating, turn on
the main power supply switch 6hours before operation for
smooth running (Refer to MAINTENANCE).
• When the display shows "
FILTER), ask a qualified service person to clean the filter
(Refer to MAINTENANCE).
• Fully use the function of air flow direction adjust.
Cold air gathers on the floor, and warm air gathers in the
ceiling.
Set the air flow direction parallel during cooling or dry
operation, and set it downwards during heating operation.
Do not let the air blow directly to a person.
• It takes time for the room temperature to reach the set tem-
perature.
We recommend starting the operation in advance using
timer operation.
MAINTENANCE
(FOR SERVICE PERSONNEL)
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.
• Contact professional personnel about attachment of
accessories and be sure to use only accessories
specified by the manufacturer.
If a defect results from your own workmanship, it may
result in water leaks, electric shock or fire.
" (TIME TO CLEAN AIR
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.
• Take care of scaffolding and exercise caution when
working high above ground level.
HOW TO CLEAN THE AIR FILTER
Clean the air filter when the display shows "
CLEAN AIR FILTER).
It will display that it will operate for a set amount of time.
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 filter.
(For changing air filter, please contact your dealer.)
1. Open the suction grille.
Pull it downward slowly while pressing the buttons pro-
vided on two spots.
(Do the same procedure for closing.)
Fig. 1
2. Remove the air filter.
Perform the operation in the order (1) and (2).
Fig. 2
" (TIME TO
(2)
(1)
9