Sharp AE-X26FR-N Service Manual page 15

1.22. Dehumidifying operation control
If the room temperature is 26°C or higher when dehumidifying opera-
tion starts, the dehumidifying operation provides a low cooling effect in
accordance with the room temperature setting automatically deter-
mined based on the outside air operation. (The setting value is the
same as the set temperature for cooling operation in the auto mode.)
If the room temperature is lower than 26°C when dehumidifying opera-
tion starts, the dehumidifying operation minimizes the lowering of the
room temperature.
1.23. SELF CLEAN operation
SELF CLEAN operation will provide efect to reduce the growth mold,
and to dry inside of the air conditioner unit with Plasmacluster ions.
Heating or Fan operation and Cluster operation are performed simulta-
neously.
The judgment of whether Heating or Fan operation is used is based on
the outside air temperature at 3 minutes after the start of internal
cleaning.
The operation stops after 40 minutes. (The air conditioner shows the
remaining minutes: 40 → 39 → 38 ... 3 → 2 → 1)
Heating operation
24
1.24. Plasmacluster Ion function
Operating the Plasmacluster Ion button while the air conditioner is in
operation or in non-operation allows the switching of the operation
mode in the following sequence: "Cleaning operation" → "Ion control
operation" → "Stop".
• "Cleaning operation" generates about equal amounts of (+)ions
and (-)ions from the cluster unit to provide clean air.
• "Ion balance operation" generates more (-)ions than (+)ions from
the cluster unit.
If the Plasmacluster Ion generation function is operated together with
the air conditioner operation, the indoor unit fan speed and louver
direction are in accordance with the air conditioner settings.
If the Plasmacluster Ion generation function is used without operating
the air conditioning function, the indoor unit fan operates at a very low
speed and the upper louver is angled upward and the lower louver
remains horizontal. (The airflow volume and direction can be changed
by using the remote control.)
1.25. Hot keep
When the room temperature rises above the set temperature by 0.6°C
or more, the ON/OFF operation of the compressor and indoor unit fan
is controlled in order to lower the room temperature.
(The values indicated below, such as "0.6°C" and "1.3°C," vary
depending on the outside air temperature.)
1.3 O C
O
0.6 C
Set temperature
1.25.1 Hot keep zone 1
With the compressor frequency at the lowest, if the room temperature
is higher than the set temperature by 0.6°C but no more than 1.3°C,
the following processes will be activated.
1) The compressor stops temporarily, and restarts after 2 minutes.
Fan operation
O C
Outside air temperature
2) If the room temperature remains in the hot keep zone, the com-
pressor is turned OFF and ON in 3-minute intervals.
3) The indoor unit fan turns OFF and ON with a delay of 30 seconds
from the compressor OFF/ON.
4) After the above operation in 3-minute intervals is repeated four
times, the interval extends to 6 minutes.
1.25.2 Hot keep zone 2
If the compressor ON/OFF in hot keep zone 1 fails to bring the room
temperature within 1.3°C above the set temperature, the following pro-
cesses will be activated.
1) The compressor repeats a cycle of 8-minute OFF and 6-minute
ON.
2) After the second time, the compressor remains completely OFF
and only the indoor unit fan repeats OFF-ON in set intervals.
3) While the compressor is completely OFF in 2), the louvers are set
horizontally to prevent cold air from blowing.
The zone transition and the end of hot keep operation (room tempera-
ture lower than the set temperature) are judged when the compressor
ON period ends.
1.26. Winter cool
The air conditioner cannot be operated in the cooling mode during win-
ter (low outside air temperature) in principle. However, by cutting the
JP-WK (jumper wire) on the outdoor unit control printed circuit board
(control PCB), cooling operation can be operated at a lower outside air
temperature. When the outside air temperature is low, the outdoor unit
fan operates at slower speed.
1.27. Auto restart
When power failure occures, after power is recovered, the unit will
automatically restart in the same setting which were active before the
power failure.
1.27.1 Operating mode (Cool, Heat, Dry)
• Temperature adjustment (within 2?C range) automatic operation°
• Temperature setting
• Fan setting
• Air flow direction
• Power ON/OFF
• Automatic operation mode setting
• Swing louvre
• Plasmacluster mode
1.27.2 Setting not memorized
• Timer setting
• Full power setting
• Internal cleaning
1.27.3 Disabling auto restart function
By removing (cutting) jumper J (JPJ) on the printed circuit board
(PCB), the auto restart function can be disabled.
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AYXP26FRN