7
WARNING
This appliance is
fi
lled with
R290 (Extremely
fl
ammable gas,
safety A3 group per ISO 817).
If the refrigerant is leaked and
exposed to an external ignition
source, there is a risk of
fi
re.
Indoor unit and outdoor unit
Protective zone is de
fi
ned near the
product. See section Protective zone.
Be aware that refrigerant may
not contain an odour, highly
recommended to ensure suitable
fl
ammable refrigerant gas detectors
are present, operating and able to
warn of a leak.
Keep any required ventilation
openings clear of obstruction.
Do not pierce or burn as the appliance
is pressurized. Do not expose the
appliance to heat,
fl
ame, sparks, or
other sources of ignition. Else it may
explode and cause injury or death.
Precaution for using R290
refrigerant
The mixing of different refrigerants
within a system is prohibited.
• Operation, maintenance, repairing
and refrigerant recovery should be
carried out by trained and certi
fi
ed
personnel in the use of
fl
ammable
refrigerants and as recommended
by the manufacturer. Any personnel
conducting an operation, servicing
or maintenance on a system or
associated parts of the equipment
should be trained and certi
fi
ed.
• Any part of refrigerating circuit
(evaporators, air coolers, AHU,
condensers or liquid receivers) or
piping should not be located in the
proximity of heat sources, open
fl
ames, operating gas appliance or
an operating electric heater.
• The user/owner or their authorised
representative shall regularly check
the alarms, mechanical ventilation
and detectors, at least once a
year, where as required by national
regulations, to ensure their correct
functioning.
• A logbook shall be maintained. The
results of these checks shall be
recorded in the logbook.
• In case of ventilations in occupied
spaces shall be checked to con
fi
rm
no obstruction.
