4
PRECAUTIONS FOR GROUP CONTROL SYSTEM OR TWO REMOTE
CONTROLLER
CONTROL SYSTEM
This system provides two other control systems beside individual
control (one remote controller controls one indoor unit) system.
Confirm the following if your unit is of the following control system
type.
• Group control system.
One remote controller controls up to 16 indoor units.
All indoor units are equally set.
• Two remote controller control system.
Two remote controllers control one indoor unit (In case of group
control system, one group of indoor units). The unit is individually
operated.
Note
Contact your Daikin dealer in case of changing the combination
or setting of group control and two remote controller control
systems.
OPTIMUM OPERATION
Observe the following precautions to ensure the system operates
properly.
• Adjust the air outlet properly and avoid direct air flow to room
inhabitants.
• 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.
• Keep doors and windows closed. If the doors and windows
remain open, room air will flow out and decrease the effect of
cooling and heating.
• Never place objects near the air inlet and the air outlet of the unit.
It may retard effectiveness or cause operation to stop.
• Turn off the main power supply switch when not using for long
periods of time. Electricity is consumed as long as the switch is
on. Turn off the main power supply switch in order to save
energy. Turn on the main power supply switch 6 hours before
restarting operation in order to ensure smooth operation. (Refer
to “MAINTENANCE”)
• When the display shows “
” (TIME TO CLEAN AIR FILTER),
have a qualified service person to clean the filters. (Refer to
“MAINTENANCE”)
NOT A MALFUNCTION OF THE AIR CONDITIONER
The following symptoms do not indicate air conditioner malfunction.
THE SYSTEM DOES NOT OPERATE
• The system does not restart immediately after the ON/OFF
button is pressed.
If the OPERATION lamp lights, the system is in its normal
operating condition.
It does not restart immediately because one of its safety devices
actuates to prevent the system from being overloaded.
The system will turn on again automatically after three minutes.
• The system does not restart immediately when the
TEMPERATURE SETTING button is returned to its former
position after pushing.
It does not restart immediately because one of its safety devices
actuates to prevent the system from being overloaded.
The system will turn on again automatically after three minutes.
• The system does not start when the display shows “
”
(UNDER CENTRALIZED CONTROL) and it flashes for a few
seconds after pressing an operation button.
This is because the system is under centralized control.
When the display flashes, it indicates that the system cannot be
controlled by the indoor unit.
• The system does not start immediately after the power supply is
turned on.
Wait one minute until the micro computer is prepared for
operation.
WHITE MIST COMES OUT OF A UNIT
• When humidity is high during cooling operation (In oily or dusty
places).
If the inside of an indoor unit is extremely contaminated, the
temperature distribution inside a room becomes uneven. It is
necessary to clean the inside of the indoor unit. Ask your Daikin
dealer for details on cleaning the unit. This operation requires a
qualified service person.
• When the system is changed over to HEATING OPERATION
after DEFROST OPERATION.
Moisture generated by DEFROST becomes steam and exits.
NOISE OF AIR CONDITIONERS
• A continuous low “hissing” sound is heard when the system is in
COOLING or DEFROST OPERATION.
This is the sound of refrigerant gas flowing through both indoor
and outdoor units.
• A “hissing” sound which is heard at the start or immediately after
the stop of operation or which is heard at the start or immediately
after the stop of DEFROST OPERATION.
This is the noise of refrigerant caused by flow stop and flow
change.
• A continuous low “swishing” sound is heard when the system is
in COOLING OPERATION or at a stop.
The noise is heard when the drain pump is in operation.
• A “squeaking” sound is heard when the system is in operation or
after the stop of operation.
Expansion and contraction of plastic parts caused by
temperature change makes this noise.
DUST FROM THE UNITS
• Dust may blow out from the unit after starting operation from long
resting time. Dust absorbed by the unit blows out.
THE UNITS GIVE OFF ODOURS
• The unit absorbs the smell of rooms, furniture, cigarettes, etc.,
and then emits them.
THE LIQUID CRYSTAL DISPLAY OF THE REMOTE CONTROLLER
SHOWS
“ ”
• Happens immediately after the main power supply switch is
turned on.
Shows that the remote controller is in normal condition.
Continues temporary.
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