Basic Operation Modes; Special Heating Operation Modes; Adjusting The Airflow Direction; Active Circulation Airflow - Daikin FXFN50A2VEB Installation And Operation Manual

6.2.1

Basic operation modes

The indoor unit can operate in various operation modes.
Icon
Cooling. In this mode, cooling will be activated as
required by the setpoint, or by Setback operation.
Heating. In this mode, heating will be activated as
required by the setpoint, or by Setback operation.
Fan only. In this mode, air circulates without heating
or cooling.
Dry. In this mode, the air humidity will be lowered with
a minimal temperature decrease.
The temperature and fan speed are controlled
automatically and cannot be controlled by the
controller.
Dry operation will not function if the room temperature
is too low.
Auto. In Auto mode, the indoor unit automatically
switches between heating and cooling mode, as
required by the setpoint.
6.2.2

Special heating operation modes

Operation
Defrost
Hot start
FXFN50~112A2VEB
CO₂ Conveni-Pack: indoor unit
3P672850-1A – 2021.07
Operation mode
Description
To prevent a loss of heating
capacity due to frost
accumulation in the outdoor unit,
the system will automatically
switch to defrost operation.
During defrost operation, the
indoor unit fan will stop
operation, and the following icon
will appear on the home screen:
The system will resume normal
operation after approximately 6
to 8 minutes.
During hot start, the indoor unit
fan will stop operation, and the
following icon will appear on the
home screen:
6.2.3

Adjusting the airflow direction

The following airflow directions can be set:
Direction
Fixed position. The indoor unit
blows air in 1 of 5 fixed positions.
Swing. The indoor unit alternates
between the 5 positions.
Auto. The indoor unit adjusts its
airflow direction according to
movement sensed by a
movement sensor.
INFORMATION
Depending on system layout and organisation, Auto airflow
direction may not be available.
INFORMATION
For setting procedure of the airflow direction, see the
reference guide or the manual of the used user interface.
Automatic airflow control
In the following operating conditions, the airflow direction of the
indoor units is controlled automatically:
▪ When the room temperature is higher than the controller's setpoint
for heating operation (including auto operation).
▪ When the indoor units run in heating operation mode, and the
Defrost function is active.
▪ When the indoor units run in Continuous operation, and the airflow
direction is Horizontal.
WARNING
NEVER touch the air outlet or the horizontal blades while
the swing flap is in operation. Fingers may become caught
or the unit may break down.
NOTICE
Avoid operating in the horizontal direction. It may cause
dew or dust to settle on the ceiling or flap.
6.2.4

Active circulation airflow

Use active circulation airflow to heat or cool the room more quickly.
INFORMATION
For setting procedure of the active circulation airflow, see
the reference guide or the manual of the used user
interface.
6.3

To operate the system

INFORMATION
For setting of the operation mode, airflow direction, active
circulation airflow or other settings, see the reference guide
or operation manual of the user interface.
6 Operation
Screen
Installation and operation manual
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