5 Operation
Operation manual
7
FTXF20~42E5V1B
Daikin room air conditioner
3P520336-19V – 2022.09
Operation mode
Operation range
Cooling
(a)(b)
▪ Outdoor temperature: –10~48°C DB
▪ Indoor temperature: 18~32°C DB
▪ Indoor humidity: ≤80%
Heating
(a)
▪ Outdoor temperature: –15~24°C DB
▪ Indoor temperature: 10~30°C DB
Drying
(a)
▪ Outdoor temperature: –10~48°C DB
▪ Indoor temperature: 18~32°C DB
▪ Indoor humidity: ≤80%
(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
When to use which feature
You can use the following table to determine which features to use:
Feature
Tasks
Basic features
Operation modes and
temperature
To start/stop the system and to set the
temperature:
▪ Heat up or cool down a room.
▪ Blow air in a room without heating or
cooling.
▪ Decrease the humidity in a room.
▪ In Automatic mode, automatically
select an appropriate temperature
and operation mode.
Airflow direction
To adjust the airflow direction (swing or
fixed position).
Airflow rate
To adjust the amount of air blown into
the room.
To run more quietly.
Advanced features
Econo
To use the system when you are also
using other power-consuming
appliances.
To save energy.
Comfort
To provide a comfortable airflow that
does NOT come in direct contact with
people.
Powerful
To cool down or heat up the room
quickly.
ON timer +
OFF
timer
To automatically turn ON or OFF the
system.
5.3
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.
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.
5.3.1
To start/stop operation mode and to set
the temperature
: Unit is operating.
: Operation mode = Automatic
: Operation mode = Drying
: Operation mode = Heating
: Operation mode = Cooling
: 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 in the following sequence:
2
Press
to
start
operation.
Result:
is displayed on the LCD.
Result:
The operation lamp lights up.
3
Press or on the
button one or more times to lower or
raise the
temperature
.
Note:
When using drying or fan only mode, you cannot adjust the
temperature.
4
Press
to
stop
operation.
Result:
disappears from the LCD.