5 Operation
Operation manual
7
FTXM20~4 FTXM20~71R2V1B
Daikin room air conditioner
3P485919-11S – 2020.06
(a)
A safety device might stop the operation of the system if the unit
runs outside its operation range.
(b)
Condensation and water dripping might occur if the unit runs
outside its operation range.
5.2
Operation mode and temperature
setpoint
When.
Adjust the system operation mode and set the temperature
when you want to:
▪ Heat up or cool down a room
▪ Blow air in a room without heating or cooling
▪ Decrease the humidity in a room
What.
The system operates differently, depending on the user
selection.
INFORMATION
Operation modes:
cooling
,
drying
and
automatic
are
NOT available for the
heating only
version of the product.
Setting
Description
Automatic
The system cools down or heats up a
room to the temperature setpoint. It
automatically switches between cooling
and heating if necessary.
Drying
The system decreases the humidity in a
room.
Heating
The system heats up a room to the
temperature setpoint.
Cooling
The system cools down a room to the
temperature setpoint.
Fan
The system only controls the airflow
(airflow rate and airflow direction).
The system does NOT control the
temperature.
Additional info:
▪
Outside temperature.
The system's cooling or heating effect
decreases when the outside temperature is too high or too low.
▪
Defrost operation.
During heating operation, frost might occur on
the outdoor unit and decrease the heating capacity. In that case,
the system automatically switches to defrosting operation to
remove the frost. During defrosting operation, hot air is NOT
blown from the indoor unit.
5.2.1
To start/stop operation mode and to set
the temperature
: Unit is operating.
: Operation mode = Automatic
: Operation mode = Drying
: Operation mode = Cooling
: Operation mode = Heating
: Operation mode = Fan only
: Shows the set temperature.
1
Press
one or more times to select the operation mode.
Result:
The mode will be set as follows:
2
Press
to
start
operation.
Result:
and the selected mode are displayed on the LCD.
3
Press
or
one or more times to lower or raise the
temperature
.
Cooling
operation
Heating
operation
Automatic
operation
Drying or Fan
only operation
18~32°C
10~30°C
18~30°C
—
Note:
When using
drying
or
fan
only
mode, you cannot adjust the
temperature.
4
Press
to
stop
operation.
Result:
disappears from the LCD. The operation lamp goes
off.
5.3
Airflow rate
1
Press
to choose:
5 airflow rate levels, from "
" to "
"
Automatic airflow rate operation
Indoor unit quiet operation. When the airflow rate is
set to "
", the noise from the unit will be reduced.
INFORMATION
▪ If the unit reaches the temperature setpoint in cooling
or heating mode, the fan will stop operating.
▪ When using drying operation mode, you CANNOT
adjust the airflow rate setting.
5.3.1
To adjust the airflow rate
1
Press
to change the airflow setting as follows:
5.4
Airflow direction
When.
Adjust the airflow direction as desired.
What.
The system directs the airflow differently, depending on the
user selection (swinging or fixed position). It does so by moving
horizontal blades (flaps) or vertical blades (louvers).
Setting
Airflow direction
Vertical automatic
swing
Moves up and down.
Horizontal
automatic swing
Moves from side to side.
+
3-D airflow
direction
Moves alternately up and down and
from side to side
[—]
Stays in a fixed position.
CAUTION
ALWAYS use a user interface to adjust the position of the
flaps and louvers. When the flaps and louvers are swinging
and you move them forcibly by hand, the mechanism will
break.
The movable range of the flap varies according to the operation
mode. The flap will stop at the upper position when the airflow rate is
changed to low during the up and down swing setting.
