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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
6.2.3
Airflow direction
When. Adjust the airflow direction as desired.
What. The system directs the airflow differently, depending on the
user selection.
CAUTION
▪ ALWAYS use a user interface to adjust the angle of the
flap. When the flap is swinging and you move it forcibly
by hand, the mechanism will break.
▪ Be careful when adjusting the louvers. Inside the air
outlet, a fan is rotating at high speed.
1 Vertical airflow
The following vertical airflow directions can be set by the user
interface:
FAA71+100BUV1B
Split system air conditioner
3P654518-1A – 2021.03
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:
Direction
Fixed position. The indoor unit
blows air in 1 of 5 fixed positions.
Swing. The indoor unit alternates
between the 5 positions.
Note: Recommended position of the horizontal blades (flaps) varies
according to the operation mode.
a
b
a
Cooling operation
b
Heating operation
INFORMATION
For setting procedure of the vertical airflow direction, see
the reference guide or the manual of the used user
interface.
2 Horizontal airflow
▪ Horizontal airflow: by manually adjusting position of the vertical
blades (louvers).
To adjust the louvers (vertical blades)
1 Adjust horizontal blades using the user interface so you can
easily access the knobs on the vertical blades.
2 Hold knobs and move them down slightly.
3 Adjust left or right to the desired position while holding the
knobs.
a
a
Knobs
INFORMATION
When the unit is installed in a corner of a room, the
direction of the louvers should be facing away from the
wall. Efficiency will drop if a wall blocks the air.
6.3
To operate the system
INFORMATION
For setting of the operation mode or other settings, see the
reference guide or operation manual of the user interface.
6 Operation
Screen
a
Installation and operation manual
9
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