In all districts, all ground-based mechanical equipment, including heating, ventilating, and air-conditioning units and back-up generators, may be located in any yard. However, if the equipment is in an interior-side yard, it must be at least 3 feet from the side lot line. If ground-based mechanical equipment is located in a non-residential district adjoining a Residential, Office-Residential, or Industrial Mixed-Use District, the equipment must be screened from public view in accordance with the requirements of the Baltimore City Landscape Manual. Any mechanical equipment located on the roof of any structure in any zoning district must be located to allow safe access to the roof. Ord. 16-581 Ord. 17-015