6
Safety precautions
WARNING
Precaution for appliance
fi
lled
with R32
Pay careful attention to the following
points when operating the appliances
and dealing with different refrigerants.
The appliance shall be installed,
and/or operated in a room with
fl
oor area larger than Amin (m²)
and keep away from ignition
sources, such as heat/sparks/
open
fl
ame or hazardous areas
such as gas appliances, gas
cooking, reticulated gas supply
systems or electric cooking
appliances, etc. (Refer to Table
A of Installation instructions table
for Amin (m²))
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.
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
fl
are nuts with the R32 and
R410A piping and
fl
are nuts on
the outdoor unit side.
The R32
fl
are nut and pipe on
the outdoor unit side can also be
used for a R410A model.
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
12.7 mm (1/2 inch).]
Be extra careful so 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.)
This appliance shall be stored in
a well ventilated area.
This appliance shall be stored
in a room without continuously
operating open
fl
ames and
ignition sources.
This appliance shall be stored
so as to prevent mechanical
damage from occurring.
Do not use means to accelerate
the defrosting process or
to clean, other than those
recommended by manufacturer.
Any un
fi
t method or using
incompatible material may cause
product damage, burst and
serious injury.
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.
