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NOTE:
For multi-split type air conditioners, one outdoor unit can be matched to different types of indoor units. All of the
pictures in this manual are for demonstration purposes only. Your air conditioner may be slightly different, if similar in
shape. The following pages introduce several kinds of indoor units that can be matched with the outdoor units.
Operating Conditions
Use the system under the following temperatures for safe and effective operation. If the air conditioner is used under
different conditions, it may malfunction or become less efficient.
COOL Mode
HEAT Mode
DRY Mode
Room Temperature
17°C - 32°C (63°F - 90°F)
0°C - 30°C (32°F - 86°F)
17°C - 32°C (50°F - 90°F)
Outdoor Temperature
0°C - 50°C (32°F - 122°F)
-15°C - 30ºC (5°F - 86°F)
0°C - 50°C (32°F - 122°F)
-15°C - 50°C (5°F - 122°F)
(for models with low-temp cooling
systems)
0°C - 52°C (32°F - 126°F)
(for special tropical models)
0°C - 52°C (32°F - 126°F)
(for special tropical models)
Features
• Protection of the air conditioner
Compressor protection
The compressor cannot restatr for 3 minutes after it
stops.
• Anti-cold Air
(cooling and heating models only)
The unit is designed not to blow cold air on HEAT
mode, when the indoor heat exchanger is in one of the
following three situations and the set temperature has
not been reached.
A. When heating has just started.
B. During defrosting.
C. Low temperature heating.
The indoor or outdoor fan stop running when defrosting
(cooling and heating models only).
• Defrosting
(cooling and heating models only)
Frost may be generated on the outdoor unit during
a heat cycle when outdoor temperature is low and
humidity is high resulting in lower heating efficiency in
the air conditioner.
Under these conditions, the air conditioner will stop
heating operations and start defrosting automatically.
The time to defrost may vary from 4 to 10 minutes,
depending the outdoor temperature and the amount
of frost buildup on the outdoor unit.
• Auto-Restart
(some models)
In case of power failure, the system will immediately
stop. When power returns, the Operation light on the
indoor unit will flash. To restart the unit, press the
ON/
OFF
button on the remote control. If the system has
an auto restart function, the unit will restart using the
same settings.
• White mist emerging from the indoor unit
A white mist may be generated due to a large
temperature difference between air inlet and air outlet
on COOL mode in places with high relative humidity.
A white mist may be generated due to moisture created
in the defrosting process when the air conditioner
restarts in HEAT mode operation after defrosting.
• Noise coming from the air conditioner
You may hear a low hissing sound when the compressor
is running or has just stopped running. This sound is the
sound of the refrigerant flowing or coming to a stop.
You may also hear a low "squeaking" sound when
the compressor is running or has just stopped running.
This is caused by tempera heat expansion and cold
contraction of the plastic parts in the unit when the
temperature is changing.
A noise may be heard due to the louver restoring itself
to its original position when power is first turned on.
• Dust blowing out from the indoor unit
This happens when the air conditioner has not been
used for a long time or during its first use.
• Smell emitting from the indoor unit
This is caused by the indoor unit giving off smells
permeated from building materials, furniture or smoke.
