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CARE AND MAINTENANCE
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POINTS TO NOTE
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Operating Condition
• Temperature ranges suitable for
unit operation are as follows.
• When the unit operates above or below these conditions for a long time,
system diagnostics may detect a malfunction and the unit will not operate properly.
• If the unit operates for a long time under abnormal situation of extremely high
humidity, condensed water may drip from the unit.
Time Delay
• If the operating mode changes from COOL and DRY to HEAT, there will be
3 minutes~3 minutes 15 sec time delay between compressor turning off
and turning on including starting the heat operation.
• If the operating mode changes from Heat to Cool and Dry, there will be
3 minutes~3 minutes 15 sec time delay .
• When heating operation starts, hot air delivery might be delayed due to
a warm up period.
Minimum Operation Time
• In normal operation, there is a minimum operation time of 3 minutes between
compressor turning on and turning off.
Defrost Operation
(For Heat Pump Model)
• In the heating mode, when the outdoor coil is frosted, the indoor fan and
outdoor fan will turn off while the compressor will turn on to remove the frost
on the outdoor coil.
• The defrost mode stops after 5 minutes 20 sec or 9 minutes 40 sec according
to outdoor coil status or when compressor operates according to preset condition.
• When the power is off, the defrost operation is automatically conducted to
eliminate frost accumulation on the outdoor coil.
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Auto recovery Operation
• When the electricity fails while the unit is operating, the unit memorizes the
MODE
INDOOR
OUTDOOR
operating condition, and it will start operation automatically when the
°
°
COOL
21 ~ 32
c
21 ~ 46
c
electricity is restored.
°
°
HEAT
Below 27
c
Below 21
c
• When you leave home during an electricity failure, please unplug the power
°
°
DRY
17 ~ 32
c
12 ~ 46
c
cord, or the unit will automatically restart in your absence.
• This function is field selectable by pressing the 'EMER' button upto field
requirements. Default from the factory is to have this function but it can be
selected as follows.
In order to cancel it, press 'EMER'(EMERGENCY) button for more than 10 consecutive
seconds, then the buzzer beeps once and this function is set not to work.
In order to recover it, press 'EMER'(EMERGENCY) button for more than 10 consecutive
seconds again, then the buzzer beeps once and this function is set to work.
Frost Prevention of Indoor Unit
When the unit is operates at a low ambient temperature, frost may appear on
the indoor coil. When the indoor coil temperature is below 0°c, the microcom-
puter makes the compressor stop to protect the unit from frost.
Normal Operation
Any of the following can occur during normal operation:
• A sound like a "GURGLE" can sometimes be heard during operation or
when the unit stops.
- It is the sound of the refrigerant flowing through the unit.
• Bad smells can come from the unit.
- Smells such as smoke or cosmetics can accumulate while room air
- Cleaning the filters will reduce this problem.
• UNIT ON lamp on the indoor unit displays flashes and no air comes from the unit.
- It indicates malfunction of the unit and the compressor will stop operating.
• A "BAK-BAK" sounding noise can sometimes be heard during operation or
when the unit turns on.
- It is the sound of plastic expanding due to an abrupt temperature change.
(Field selection)
circulates through the unit.
2004.3.30, 6:32 PM
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