Do the requirements of Table G3.1.1A Baseline HVAC System Types apply to the whole building or just to the project area for additions and alterations? I am working on a project renovating a large existing sports complex. The existing building area is over 150,000 square feet, but the renovation project area is about 17,000 square feet. Would this fall under System 7/8 or System 3/4?

This question is also applied to the heating source. If the existing building uses fossil fuel, but the project area uses 100% electric, would my baseline system fall under the fossil fuel column or electric?