A new NAC Panel is being installed to accommodate a "T-tapped" NAC circuit that was discovered during an annual inspection. The original NAC circuit will be the "trigger" to the NAC panel. Two NAC circuits are utilized, only horns are indicated on the plans. All calculations (battery and voltage) are based on actual measurements and appear to have sufficient capacity. No written comments. The PDS Fire Inspector to field verify functionality of both NAC circuits.