Optimum Operation; Maintenance (For Service Personnel) - Daikin FUQ71BUV1B Operation Manual

Press the AIR FLOW DIRECTION ADJUST but-
ton to select the air direction as shown below.
The AIR FLOW FLAP display
swings as shown below and the air
flow direction continuously varies.
(Automatic swing setting)
swing
Press AIR FLOW DIRECTION
ADJUST button to select the air
direction of your choice.
The AIR FLOW FLAP display
stops swinging and the air flow
direction is fixed (Fixed air flow
direction setting).
MOVEMENT OF THE AIR FLOW FLAP
For the following conditions, micro computer con-
trols the air flow direction so it may be different from
the display.
Operation mode Cooling
• When room
temperature
Operation is lower than
condition the set tem-
perature
Operation mode includes automatic operation.

6. 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 dur-
ing 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 heat-
ing.
• 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.
English
Heating
• When room
temperature is
higher than the
set temperature
ONLY A QUALIFIED SERVICE PERSON IS
• At defrost oper-
ALLOWED TO PERFORM MAINTENANCE
ation
IMPORTANT!
HOW TO CLEAN THE AIR FILTER
Clean the air filter when the display shows "
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 (Air filter for exchange is optional).
• 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 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 "
service person to clean the filters (Refer to MAIN-
TENANCE).
• 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 heat-
ing operation.
Do not let the air blow directly to a person.
7. 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 oper-
ation, 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.
" , ask a qualified
".
6