90.1-2019
Space use classifications determine the default or prescribed occupant density, occupant activity level, receptacle power, service water heating, lighting load, area-based minimum outdoor ventilation air, daylighting setpoints, and operating schedules used in the analysis. Process loads and refrigeration loads are also provided for applicable space types. The user shall designate space use classifications that best match the uses for which the building or individual spaces within the building are being designed.
The user may override the default assumptions for some building descriptors dependent on the space use classification with supporting documentation. Details are provided in Section 3.4.1 of this manual.