LG AC Smart Installation And Owner's Manual page 172

4. Operating AC Smart
Information: Saving event as exception date
You can set and save the exception day pattern for the event that occurs on a date when the unit
must operate exceptionally such as anniversary or holiday etc.
From '2. Edit and save schedule detail' of 'Schedule detail edit', select the day to designate as
exception day and click on [Add] button from '3 Exception day setting'.
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AC Smart