4 About the system
Installation and operation manual
8
FXFA20~125A2VEB
VRV system air conditioner
3P599604-1C – 2020.10
▪ Be aware that the refrigerant inside
the system is odourless.
WARNING
The refrigerant inside the unit is mildly
flammable, but normally does NOT
leak. If the refrigerant leaks in the room
and comes in contact with fire from a
burner, a heater, or a cooker, this may
result in fire, or the formation of a
harmful gas.
Turn off any combustible heating
devices, ventilate the room, and
contact the dealer where you
purchased the unit.
Do NOT use the unit until a service
person confirms that the part from
which the refrigerant leaked has been
repaired.
WARNING
It is necessary to replace the sensor
after every detection or at the end of
the lifetime. Authorized person only
MUST replace the sensor.
WARNING
The appliance shall be stored in a
room without continuously operating
ignition sources (example: open
flames, an operating gas appliance or
an operating electric heater).
WARNING
Stop operation and shut off the
power if anything unusual occurs
(burning smells etc.).
Leaving the unit running under such
circumstances may cause breakage,
electric shock or fire. Contact your
dealer.
4
About the system
WARNING
▪ Do NOT modify, disassemble, remove, reinstall or
repair the unit yourself as incorrect dismantling or
installation may cause an electric 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, non-toxic and mildly flammable, but it will
generate toxic gas when it accidentally leaks 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.
CAUTION
This unit is equipped with electrically powered safety
measures, such as a refrigerant leak detector. In order to
be effective, the unit must be electrically powered at all
times after installation, except for short service periods.
4.1
System layout
INFORMATION
The following illustration is an example and might NOT
match your system layout.
a
b
c
d
e
h
f
g
a
Indoor unit
b
Outdoor unit
c
User interface
d
Suction air
e
Discharge air
f
Refrigerant transmission cable
g
Drain pipe
h
Suction grille and air filter
