Designed to provide a quiet, serviceable and extremely efficient system that will offer years of reliable operation. High efficiency design offers a minimum of 10.0 EER at full-load, exceeding ASHRAE 90.1 minimum efficiency requirements. Includes high efficiency, variable speed EC condenser fans with integral head pressure control and acoustical design providing low operating noise levels. Modules can be configured to provide project turndown and capacity requirements from 20 to 420 tons.