screening analysis for epact covered commercial hvac and water heating equipment volume 2 appendix material april 2000 office of building technology state community programs energy efficiency renewable us department ii contents a engineering data 1 introduction lighting plug load assumptions schedules peak intensities 3 densities loads 9 operation occupancy 11 general mo deling assembly education 13 4 food service 5 lodging 15 6 7 retail 16 8 warehouse 17 occupant activity levels outdoor air ventilation windows 18 walls roofs ceilings infiltration 19 fleoh weights used