About The System; System Layout; User Interface; Operation - Daikin FDA125A5VEB Installation And Operation Manual

4

About the system

WARNING
▪ Do NOT modify, disassemble, remove, reinstall or
repair the unit yourself as incorrect dismantling or
installation may cause an electrical shock or fire.
Contact your dealer.
▪ In case of accidental refrigerant leaks, make sure there
are no naked flames. The refrigerant itself is entirely
safe and non-toxic. R410A is a non-combustible
refrigerant, and R32 is a mildly flammable refrigerant,
but they will generate a toxic gas when they
accidentally leak into a room where combustible air
from fan heaters, gas cookers, etc. is present. Always
have qualified service personnel confirm that the point
of leakage has been repaired or corrected before
resuming operation.
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.
4.1

System layout

INFORMATION
The following figures are just examples and may NOT
completely match your system layout.
d
f
e
a
c
g
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
FDA125A5VEB
Split system air conditioners
4P494410-1D – 2022.10
b
h
5 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.
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.
NOTICE
NEVER press the button of the user interface with a hard,
pointed object. The user interface may be damaged.
NOTICE
NEVER pull or twist the electric wire of the user interface. It
may cause the unit to malfunction.
This operation manual offers a non-exhaustive overview of the main
functions of the system.
For more information about the user interface, see the operation
manual of the installed user interface.
6

Operation

6.1

Operation range

For combination with R410A outdoor unit
Outdoor units Temperature
RZQ250 Outdoor
Indoor
RZQG125 Outdoor
Indoor
RZQSG125 Outdoor
Indoor
RR125 Outdoor
Indoor
RQ125 Outdoor
Indoor
Indoor humidity
(a)
To avoid condensation and water dripping out of the unit. If the
temperature or the humidity is beyond these conditions, safety
devices may be put in action and the air conditioner may not
operate.
For combination with R32 outdoor unit
Outdoor units Temperature
RZAG125 Outdoor
Indoor
4 About the system
Cooling Heating
–5~46°C DB –15~15°C WB
14~28°C WB 10~27°C DB
–15~50°C DB –20~15.5°C WB
12~28°C WB 10~27°C DB
–15~46°C DB –15~15.5°C WB
14~28°C WB 10~27°C DB
–15~46°C DB —
12~28°C WB —
–5~46°C DB –10~15°C WB
12~28°C WB 10~27°C DB
(a)
≤80%
Cooling Heating
–20~52°C DB –20~24°C DB
–20~18°C WB
17~38°C DB 10~27°C DB
12~28°C WB
Installation and operation manual
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