13 Maintenance and service
Installation and operation manual
14
FXFQ20~125BVEB
VRV system air conditioner
4P540926-1B – 2019.01
12.3.1
About the air flow flap
Double flow+multi-flow units
For the following conditions, a micro computer controls the air flow
direction which may be different from the display.
Cooling
Heating
▪ When the room temperature is
lower
than
the
set
temperature.
▪ When starting operation.
▪ When the room temperature is
higher
than
the
set
temperature.
▪ At defrost operation.
▪ When operating continuously at horizontal air flow direction.
▪ When continuous operation with downward air flow is performed
at the time of cooling with a ceiling-suspended or a wall-mounted
unit, the micro computer may control the flow direction, and then
the user interface indication will also change.
The air flow direction can be adjusted in one of the following ways:
▪ The air flow flap itself adjusts its position.
▪ The air flow direction can be fixed by the user.
▪ Automatic
and desired position .
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
▪ The movable limit of the flap is changeable. Contact
your dealer for details. (only for double-flow, multi-flow,
corner, ceiling-suspended and wall-mounted).
▪ Avoid operating in the horizontal direction
. It may
cause dew or dust to settle on the ceiling or flap.
12.4
Active circulation airflow
Use active circulation airflow to heat or cool the room more quickly.
12.4.1
To start the active circulation airflow
1
Set the active circulation airflow
1
Go to the home screen.
Cool
Set to
28
°C
2
Press.
Return
Setting
Main Menu 1/2
Circulation Airflow
Individual Air Direction
Energy Saving Options
Schedule
Maintenance Information
Configuration
3
Select Circulation airflow
Return
Setting
Main Menu 1/2
Circulation Airflow
Individual Air Direction
Energy Saving Options
Schedule
Maintenance Information
Configuration
4
Choose enable and confirm.
Return
Setting
Return
Setting
Circulation Airflow
Enable/Disable
Enable
5
Confirm setting.
Return
Setting
Return
Setting
Circulation Airflow
Save the settings?
Yes
No
6
Go to the home screen.
Cool
Set to
28
°C
7
Check if Air Volume/direction
is set to automatic. If not set
to automatic.
Return
Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Auto
Auto
2
Turn on the unit by the user interface.
13
Maintenance and service
13.1
Precautions for maintenance and
service
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. When the fan is rotating at high speed, it will
cause injury.
NOTICE
Never inspect or service the unit by yourself. Ask a
qualified service person to perform this work. However, as
end user, you may clean the air filter, suction grille, air
outlet and outside panels.
WARNING
Never replace a fuse with a fuse of a wrong ampere ratings
or other wires when a fuse blows out. Use of wire or
copper wire may cause the unit to break down or cause a
fire.
CAUTION
After a long use, check the unit stand and fitting for
damage. If damaged, the unit may fall and result in injury.
NOTICE
Do NOT wipe the controller operation panel with benzine,
thinner, chemical dust cloth, etc. The panel may get
discoloured or the coating peeled off. If it is heavily dirty,
soak a cloth in water-diluted neutral detergent, squeeze it
well and wipe the panel clean. Wipe it with another dry
cloth.
CAUTION
Before accessing terminal devices, make sure to interrupt
all power supply.
NOTICE
When cleaning the heat exchanger, make sure to remove
the switch box, fan motor, drain pump and float switch.
Water or detergent might deteriorate the insulation of
electronic components and result in burnout of these
components.
