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. It includes high efficiency, variable speed EC condenser fans with integral head pressure control and an acoustical design that provides low operating noise levels. Modules can be configured to provide project turn down and capacity requirements from 20–720 tons.