For The User; 12 About The System; System Layout; User Interface - Daikin FFA50A2VEB9 Installer And User Reference Manual

For the user

12 About the system
The indoor unit of this split system air conditioner can be used for
heating/cooling applications.
NOTICE
Do NOT use the system for other purposes. In order to
avoid any quality deterioration, do NOT use the unit for
cooling precision instruments, food, plants, animals, or
works of art.
NOTICE
For future modifications or expansions of your system:
A full overview of allowable combinations (for future
system extensions) is available in technical engineering
data and should be consulted. Contact your installer to
receive more information and professional advice.
12.1

System layout

a
f
g
c
a Indoor unit
b Outdoor unit
c

User interface

d Suction air
e Discharge air
f Refrigerant piping + interconnection cable
g Drain pipe
h Earth wiring
i Suction grille and air filter
12.2 User interface
CAUTION
▪ NEVER touch the internal parts of the controller.
▪ Do NOT remove the front panel. Some parts inside are
dangerous to touch and appliance problems may
happen. For checking and adjusting the internal parts,
contact your dealer.
This operation manual will give a non-exhaustive overview of the
main functions of the system.
FFA25~60A2VEB(9)
Split system air conditioners
4P550955-4 – 2018.08
For more information about the user interface, see the operation
manual of the installed user interface.
13
i
e
d
b
This operation manual is for the following systems with standard
control. Before initiating operation, contact your dealer for the
operation that corresponds to your system type and mark. If your
installation has a customised control system, ask your dealer for the
operation that corresponds to your system.
Operation modes:
▪ Heating and cooling (air to air).
h
▪ Fan only operation (air to air).
14
14.1
Use the system in the following temperature and humidity ranges for
safe and effective operation.
For combination with R410A outdoor unit, refer to the following table:
Outdoor units
RR71~125
RQ71~125

12 About the system

Before operation

WARNING
This unit contains electrical and hot parts.
WARNING
Before operating the unit, be sure the installation has been
carried out correctly by an installer.
CAUTION
It is not good for your health to expose your body to the air
flow for a long time.
CAUTION
To avoid oxygen deficiency, ventilate the room sufficiently
if equipment with burner is used together with the system.
CAUTION
Do NOT operate the system when using a room
fumigation-type insecticide. Chemicals could collect in the
unit, and endanger the health of people who are
hypersensitive to chemicals.
NOTICE
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.

Operation

Operation range

Cooling
–15~46°C DB
18~37°C DB
12~28°C WB
–5~46°C DB
18~37°C DB
12~28°C WB
Installer and user reference guide
Heating
—
—
–9~21°C DB
–10~15°C WB
10~27°C DB
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