Specifications

Main Functions SiBE04-624_B
50 Function and Control
1.23 Clock Setting
ARC447 Series The clock can be set by taking the following steps:
1. Press the [CLOCK] button.
→ is displayed and blinks.
2. Press the [SELECT]  or  button to set the clock to the present time.
Holding down the [SELECT]  or  button increases or decreases the time display rapidly.
3. Press the [CLOCK] button again.
→ and blink and clock setting is completed.
1.24 Filter Cleaning Indicator
When the unit is operated for about 2 weeks (about 340 hours), the filter cleaning indicator
appears to inform you that the time of maintenance comes.
If the filter is left dirty, the power consumption increases by about 10%. It is recommended to
clean the filter it periodically for energy-saving.

How to reset the filter cleaning indicator
SELECT button
CLOCK button
(R18147)
(R13903)
When you press the [RESET ALARM] button on the
remote controller for about 2 sec. toward the air-
conditioner main unit after maintenance of the filter, the
filter cleaning indicator disappears.