4 About the system
Installation and operation manual
9
FXUA50~100AVEB
VRV system air conditioner
3P668115-2C – 2022.01
location of the terminals, see the
warning label for persons performing
service and maintenance.
CAUTION
Turn off the unit before cleaning the
unit exterior, air filter and suction grille.
WARNING
Do NOT let the indoor unit get wet.
Possible consequence:
Electrical
shock or fire.
About the refrigerant (see
WARNING: MILDLY FLAMMABLE
MATERIAL
The refrigerant inside this unit is mildly
flammable.
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
▪ Do NOT pierce or burn refrigerant
cycle parts.
▪ Do NOT use cleaning materials or
means to accelerate the defrosting
process other than those
recommended by the manufacturer.
▪ 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
The R32 refrigerant leakage sensor
must be replaced after every detection
or at the end of its lifetime. ONLY
authorised persons may replace the
sensor.
Troubleshooting (see
14])
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,
electrical 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 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, 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.
