Main Functions
SiMT041311E
39
Function and Control
CLEANING FILTER operation (automatic)
CLEANING FILTER operation automatically starts when all the below conditions are met.
When the 24 HOUR FRESH AIR SUPPLY VENTILATION is on, the unit temporarily suspends
the ventilation (closes all the panels and flaps, stops the fan, stops the ventilation) and starts the
CLEANING FILTER operation. 24 HOUR FRESH AIR SUPPLY VENTILATION will be restarted
after the CLEANING FILTER operation is completed.
Forced CLEANING FILTER operation
As the unit is required to stop for starting CLEANING FILTER operation, if the unit operates all
day and night, the CLEANING FILTER operation may not start.
Therefore, if the indoor fan operates for more than 24 hours, CLEANING FILTER operation
starts when all the below conditions are met.
When the 24 HOUR FRESH AIR SUPPLY VENTILATION is on, the unit temporarily suspends
the ventilation (closes all the panels and flaps, stops the fan, stops the ventilation) and starts the
CLEANING FILTER operation. 24 HOUR FRESH AIR SUPPLY VENTILATION will be restarted
after the CLEANING FILTER operation is completed.
∗
The conditions are set to prevent starting CLEANING FILTER operation if the room
temperature has not reached the target temperature.
(If the compressor operates for more than 30 minutes continuously, it is considered that the
room temperature has come closer to the target temperature.)
Note
CLEANING FILTER operation (manual, automatic, forced) will not start under the below
conditions:
•
When a filter malfunction is detected (determined by the signal from the filter position
sensor).
•
While the MOLD PROOF / CLEANING FILTER lamp (green) is blinking.
•
When the room temperature is lower than 10°C
CLEANING FILTER operation starts after the residual operation of the humidifying fan is
completed, because dust may be scattered if the CLEANING FILTER operation starts while the
humidifying fan is rotating.
MOLD PROOF / CLEANING FILTER lamp (green)
MOLD PROOF / CLEANING FILTER lamp blinks after operating for 20000 hours (calculated
from accumulated fan operation time) or when a brush malfunction is detected.
Brush malfunction is detected if the limit switch for the brush does not turn on/off while the brush
motor is operating. (No sign of malfunction will be indicated.)
Condition
Status
CLEANING FILTER operation
ON
Operation
ON
→
OFF
Accumulated fan rotation time after the last CLEANING
FILTER operation (including thermostat off time)
18 hours or more
Room temperature
10°C or more
Condition
Status
CLEANING FILTER operation (automatic)
ON
Operation
Thermostat off or continuous operation of
compressor for more than 30 minutes.
Indoor fan operation time
Continuous operation for more than 24
hours.
Room temperature
10°C or more