The Omnizoneâ„¢ indoor self-contained systems maximize rentable square footage with their small footprint and allow floor-by-floor installation and future expansion, says the company. The systems are preprogrammed for stand-alone cooling control. A variety of factory- or field-installed options and accessories, such as factory-installed hot-water or steam coils, a water economizer coil, and adjustable horizontal discharge plenums, are available. This family of products is offered in water-cooled, air-cooled, and remote air-cooled units.