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English
WARNING
This appliance is filled with R32
(mild flammable refrigerant).
If the refrigerant is leaked and
exposed to an external ignition
source, there is a risk of fire.
Indoor unit and outdoor unit
The appliance shall be installed, and/
or operated in a room with floor area
larger than Amin (m²) and keep away
from ignition sources, such as heat/
sparks/open flame or hazardous
areas such as gas appliances,
gas cooking, reticulated gas
supply systems or electric cooking
appliances, etc. (Refer to Table I of
Installation instructions table for
Amin (m²))
Be aware that refrigerant may
not contain an odour, highly
recommended to ensure suitable
flammable 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, flame, sparks, or
other sources of ignition. Else it may
explode and cause injury or death.
Precaution for using R32
refrigerant
The basic installation work procedures are
the same as conventional refrigerant (R410A,
R22) models.
Since the working pressure is
higher than that of refrigerant R22
models, some of the piping and
installation and service tools are
special. Especially, when replacing
a refrigerant R22 model with a new
refrigerant R32 model, always replace
the conventional piping and flare nuts
with the R32 and R410A piping and
flare nuts on the outdoor unit side.
For R32 and R410A, the same flare
nut on the outdoor unit side and pipe
can be used.
The mixing of different refrigerants
within a system is prohibited. Models
that use refrigerant R32 and R410A
have a different charging port thread
diameter to prevent erroneous
charging with refrigerant R22 and for
safety.
Therefore, check beforehand.
[The charging port thread diameter for
R32 and R410A is 1/2 inch.]
Must always ensure that foreign
matter (oil, water, etc.) does not
enter the piping. Also, when storing
the piping, securely seal the opening
by pinching, taping, etc. (Handling of
R32 is similar to R410A.)
• Operation, maintenance, repairing
and refrigerant recovery should be
carried out by trained and certified
personnel in the use of flammable
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 certified.
Safety precautions
