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4 Manual operations and maintenance
4�1 Operation mode selection
While two or more indoor units are
simultaneously operating, make
sure the modes do not conflict with
each other. The heat mode claims
precedence over all other modes. If the
unit intially started to operate in HEAT
mode, the other units can operate in
HEAT mode only. For example: If the
unit intially started operates under
COOL (or FAN) mode, the other units
can operate under any mode except
HEAT. If one of the unit selects HEAT
mode, the other operating units will
stop operation and diplay "--" (for units
with display window only) or the auto
and operation indication light will flash
rapidly, the defrost indication light
will turn off, and the timer indication
light will remain on (for units without
a display window). Alternatively, the
defrost and alarm indication light (if
applicable) wil light up, or the operation
indication light will flash rapidly, and the
timer indication light will turn off (for the
floor and standing type).
4�2 Maintenance
If you plan to leave the unit idle for a long
time, perform the following tasks:
1. Clean the indoor unit and air filter.
2. Select FAN ONLY mode and let the
indoor fan run for a time to dry the
inside of the unit.
3. Disconnect the power supply and
remove the battery from the remote
control.
4. Check components of the outdoor unit
periodically. Contact a local dealer or
a customer service centre if the unit
requires servicing.
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4�3 Optimal operation
To achieve optimal performance, please
note the following:
• Adjust the direction of the air flow so
that it is not blowing directly on people.
• Adjust the temperature to achieve
the highest possible level of comfort.
Do not adjust the unit to excessive
temperature levels.
• Close doors and windows in COOL
mode or HEAT mode.
• Use the TIMER ON button on the
remote controller to select a time you
want to start your air conditioner.
• Do not place any object near the air
inlet or air outlet, as the efficiency of
the air conditioner may be reduced and
the air conditioner may stop running.
• Clean the air filter periodically,
otherwise
performance may be reduced.
• Do not operate unit with horizontal
louvre in closed position.
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Multi Split Type Air Conditioner / User Manual
Before you clean the air
conditioner, be sure to
switch off the unit and
disconnect the power
supply plug.
cooling
or
For units that feature
an electric heater, when
the outside ambient
temperature is below
0°C (32°F), it is strongly
recommended that you to
keep the machine plugged
in so as to guarantee
smooth operation.
heating
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