4 Before operation
Operation manual
6
FTXF20~42D5V1B
Daikin room air conditioner
3P520336-14P – 2021.09
Icon
Description
Airflow rate = High
Airflow rate = Medium high
Airflow rate = Medium
Airflow rate = Medium low
Airflow rate = Low
Comfort operation is active
Auto vertical swing is active
ON timer is active
OFF timer is active
3.2.3
To operate the user interface
a
a
Signal receiver
1
Aim the signal transmitter at the signal receiver on the indoor
unit (maximum distance for communication is 7 m).
Result:
When the indoor unit receives a signal from the user
interface, you will hear a sound:
Sound
Description
Beep-beep
Operation starts.
Beep
Setting changes.
Long beep
Operation stops.
4
Before operation
4.1
To mount the user interface holder
2×
b
c
a
a
User interface
b
Screws (field supply)
c
User interface holder
1
Choose a place where the signals reach the unit.
2
Attach the holder with screws to the wall or a similar location.
3
Hang the user interface on the user interface holder.
4.2
To insert the batteries
The batteries will last for about 1 year.
1
Remove the back cover.
2
Insert both batteries at once.
3
Put the cover back.
2
3
1
AAA.LR03
4.3
To turn on the power supply
1
Turn the circuit breaker on.
Result:
The flap of the indoor unit will open and close to set the
reference position.
5
Operation
5.1
Operation range
Use the system in the following temperature and humidity ranges for
safe and effective operation.
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).
