Appliance Use (Occupied Hrs): Appliance intensity during occupied hours. These can include things that turn on after the occupants arrive, like computer monitors, coffee machine etc. 

Appliance Use (Unoccupied Hrs): Appliance intensity during unoccupied hours. These can include things that don't turn off after the occupants leave, like servers, refrigerators etc. 

Following table from ASHRAE User's Manual (Table G-C) contains the recommendations for Appliance Use Density values for different building types:

 

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