Auto set Status to 'Closed'

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After I set status of the incident as Waiting or Solved, will this configuration setting MYQ_REOPEN_DEADLINE set incident status as 'Closed' automatically or incidents will stay in Solved for ever and MYQ_REOPEN_DEADLINE  is to just prevent reopening an incident? Although from Waiting status, system will set status as Solved after CI_HOURS hours.

My aim is to set status to 'Closed' automatically which is of type 'Solved' after MYQ_REOPEN_DEADLINE  hours. Can i do this?