3
• Do not use any refrigerant different from the one specified for complement or
replacement.
Otherwise, abnormally high pressure may be generated in the refrigeration
cycle, which may result in a failure or explosion of the product or an injury to
your body.
• Do not use means to accelerate the defrosting process or to clean, other than
those recommended by the manufacturer.
• The appliance shall be stored in a room without continuously operating ignition
sources (for example: open flames, an operating gas appliance or an operating
electric heater).
• Be aware that refrigerants may not contain an odour.
• Do not pierce or burn as the appliance is pressurized. Do not expose the
appliance to heat, flame, sparks, or other sources or ignition. Else, it may
explode and cause injury or death.
• For R32 model, use pipes, flare nut and tools which is specified for R32
refrigerant. Using of existing (R22) piping, flare nut and tools may cause
abnormally high pressure in the refrigerant cycle (piping), and possibly result in
explosion and injury.
• Thickness of copper pipes used R32 must be more than 0.8 mm. Never use
copper pipes thinner than 0.8 mm.
• Do not perform flare connection inside a building or dwelling or room,
whenjoining the heat exchanger of indoor unit with interconnection piping.
Refrigerantconnection inside a building or dwelling or room must be made by
brazing orwelding. Joint connection of indoor unit by flaring method can only be
madeat outdoor or at outside of building or dwelling or room. Flare connection
maycause gas leak and flammable atmosphere.
• After completion of installation or service, confirm there is no leakage of
refrigerant gas. It may generate toxic gas when the refrigerant contacts with fire.
• Appliance and pipe-work shall be installed, operated and stored in a room with
a floor area larger than A
min
m
2
.
How to get A
min
m
2
: A
min
= (M / (2.5 x 0.22759 x h
0
))
2
M is the refrigerant charge amount in appliance in kg. h
0
is the installation
height of the appliance in m: 0.6 m for floor standing/1.8 m for wall mounted/
1.0 m for window mounted/2.2 m for ceiling mounted (For these units
recommendinstallation height 2.5 m.).
• Comply with national gas regulations.
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