Upon the occupancy of any structure subject to this section, no person shall shut off or disable any automatic fire sprinkler system and no owner or resident of the building shall fail to prevent the shutting off or disabling of the system. A sprinkler system may be shut off in order to perform maintenance work on the system during the time that qualified maintenance personnel are on the premises performing necessary maintenance work. Maintenance work shall only be conducted after notice to and approval by the Fire Department.