Daikin FCA71AV16, Installation Manual

Page: 64 / 67

I
• The outdoor unit stops.
This is because the indoor temperature has reached
the set temperature.
The indoor unit is in the FAN OPERATION.
COOLING OPERATION
(AUTOMATIC COOLING OPERATION):
Lower the set temperature.
HEATING OPERATION
(AUTOMATIC HEATING OPERATION):
Raise the set temperature.
The operation starts after a while when the air
conditioner is in normal condition.
• The remote controller displays " - ", and
airflow stops.
This is because the air conditioner automatically
switches to the DEFROST OPERATION to prevent
a decrease in heating capacity when frost on the
outdoor unit increases.
After maximum 1 O minutes, the air conditioner returns
to its original operation.
2. THE OPERATION SOMETIMES STOPS
• The remote controller displays "U4" and "US",
and the operation stops. However, it will restart
in a few minutes.
This is because communication between the indoor
and outdoor units or indoor units and remote controllers
is shut off and stops the operation due to noise caused
by devices other than the air conditioner.
When the electrical noise decreases, the air conditioner
automatically restarts.
3. THE FAN SPEED IS DIFFERENT FROM THE
SETTING
• Pressing the fan speed control button does not
change the fan speed.
During the COOLING OPERATION, the low fan speed
or a gentle wind is used to prevent the discharge of
melt water.
During the DEFROST OPERATION
(HEATING OPERATION), the wind from the
air conditioner stops to prevent air discharge directly
toward your body.
After a while, the fan speed can be changed.
(The fan speed cannot be set for the
PROGRAM DRY OPERATION.)
When the room temperature reaches the set
temperature during the HEATING OPERATION,
the outdoor unit stops and the indoor unit goes into
gentle wind.
It takes some time until the fan speed changes.
Raise the set temperature. After a while, the fan
speed changes.
4. THE AIRFLOW DIRECTION IS DIFFERENT
FROM THE SETTING, OR THE AIRFLOW
DIRECTION IS DIFFERENT FROM THE
DISPLAY ON THE REMOTE CONTROLLER
• The horizontal blades do not swing when the remote
controller displays the swing operation.
<HEATING OPERATION>
This is because the airflow direction is controlled so it is
horizontal direction after the operation starts or when the
indoor temperature is higher than the set temperature to
prevent air discharge directly toward your body.
After a while, the swing operation starts.
(Refer to "MOVEMENT OF THE HORIZONTAL BLADE"
page
59
.)
63
• The airflow direction display of the remote controller
differs from the actual operation of the horizontal
blades.
<COOL AND PROGRAM DRY OPERATIONS>
When the operation in a downward airflow direction is set,
the airflow direction differs from the display for a period of
time to prevent condensation on the horizontal blades.
<HEATING OPERATION>
This is because the airflow direction is controlled so it
is horizontal direction after the operation starts or when
the indoor temperature is higher than the set temperature
to prevent air discharge directly toward your body.
After a while, the airflow direction changes to the set
direction.
(Refer to "MOVEMENT OF THE HORIZONTAL BLADE"
page
59
.)
5. HORIZONTAL BLADES DO NOT CLOSE
• The horizontal blades do not close even when
operation stops.
This is because the horizontal blades close once airflow
from the air conditioner stops. After a while, the
horizontal blades close.
6. WHITE MIST COMES OUT OF THE AIR
CONDITIONER
• When humidity is high during the 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 local dealer for details on cleaning the
indoor unit.
This cleaning requires a qualified service person.
Check the usage environment.
• When the air conditioner is changed over to the
HEATING OPERATION after the DEFROST
OPERATION and in the DEFROST OPERATION.
Moisture generated by defrost becomes steam and will
float around. When the remote controller display shows
" - ", DEFROST OPERATION is being used.
7. NOISE OF AIR CONDITIONERS
• A ringing sound after the indoor unit starts.
This sound is generated when the motors for driving
the horizontal blades are working. It will quiet down
after about a minute.
• A low continuous flow "Shuh" sound which is
heard when the air conditioner is in the COOLING
or DEFROST OPERATION or a trickling sound
which is heard when the air conditioner is in the
DEFROST OPERATION.
This is the sound of refrigerant gas flowing through both
indoor and outdoor units.
• A "Shuh" 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 the DEFROST OPERATION.
This is the noise of refrigerant caused by flow stop
and flow change.
During the HEATING OPERATION, the air conditioner
switches to the DEFROST OPERATION automatically.
The remote controller shows" - ".
After maximum 10 minutes, the air conditioner returns
to its original operation.