Fujitsu ASBA18LEC: AOBR18LEC Operating Manual page 8

OPERATION
To Stop Operation
Press the START/STOP button (Fig. 6 R).
The OPERATION Indicator Lamp (red) (Fig. 3 5) will go out.
About AUTO CHANGEOVER Operation
● When AUTO CHANGEOVER operation fi rst selected, the fan will operate
AUTO:
at very low speed for about one minute, during which time the unit detects
the room conditions and selects the proper operating mode.
If the differance between thermostat setting and actual room temperature
is more than +2 °C → Cooling or dry operation
If the difference between thermostat setting and actual room temperature
is within ±2 °C → Monitor operation
If the difference between thermostat setting and actual room temperature
is more than –2 °C → Heating operation
● When the air conditioner has adjusted your room's temperature to near the
thermostat setting, it will begin monitor operation. In the monitor operation
mode, the fan will operate at low speed. If the room temperature subse-
quently changes, the air conditioner will once again select the appropriate
operation (Heating, Cooling) to adjust the temperature to the value set in
the thermostat.
(The monitor operation range is ±2 °C relative to the thermostat set-
ting.)
● If the mode automatically selected by the unit is not what you wish, select
one of the mode operation (HEAT, COOL, DRY, FAN).
About Mode Operation
Heating: ● Use to warm your room.
● When Heating mode is selected, the air conditioner will operate at very low
fan speed for about 3 to 5 minutes, after which it will switch to the selected
fan setting. This period of time is provided to allow the indoor unit to warm
up before begin full operation.
● When the room temperature is very low, frost may form on the outside unit,
and its performance may be reduced. In order to remove such frost, the unit
will automatically enter the defrost cycle from time to time. During Automatic
Defrosting operation, the OPERATION Indicator Lamp (Fig. 3 5) will fl ash,
and the heat operation will be interrupted.
● After the start of heating operation, it takes some time before the room gets
warmer.
Cooling: ● Use to cool your room.
Dry: ● Use for gently cooling while dehumidifying your room.
● You cannot heat the room during Dry mode.
● During Dry mode, the unit will operate at low speed; in order to adjust room
humidity, the indoor unit's fan may stop from time to time. Also, the fan may
operate at very low speed when adjusting room humidity.
● The fan speed cannot be changed manually when Dry mode has been
selected.
Fan: ● Use to circulate the air throughout your room.
En-7
During Heating mode:
Set the thermostat to a temperature setting
that is higher than the current room tempera-
ture. The Heating mode will not operate if the
thermostat is set lower than the actual room
temperature.
During Cooling/Dry mode:
Set the thermostat to a temperature set-
ting that is lower than the current room
temperature. The Cooling and Dry modes
will not operate if the thermostat is set
higher than the actual room temperature
(in Cooling mode, the fan alone will
operate).
During Fan mode:
You can not use the unit to heat and cool
your room.