Engineered and optimized for cold climate and heating dominant applications that introduce a new benchmark for VRF technology by integrating advanced technologies to provide comfort, control, energy efficiency and reliability. Delivers efficient heating down to -22°F (-30°C) and 100% of nominal heating capacity at 0°F (-18°C). Sizes range from 6 to 38 tons in a single system. http://www.daikinac.com/content/commercial/vrv/vrv-aurora/