DeKalb County installed a temporary chiller in a key county building, which means property assessments will resume on Thursday.

The county’s board of equalization hearings, which hear property owners’ appeals, were canceled for Wednesday after the air conditioning in the Callaway Building went out earlier in the week.

The cancellation affected 250 property owners, whose cases will be rescheduled. The county is about 97 percent through its 19,000-plus appeals from 2011.

The 2012 property assessments are set to be mailed to homeowners on May 29.