YORKA YVAA Variable Speed Driver Screw Chiller features increased operating efficiency, a reduced footprint and integration with low-GWP refrigerants. The chiller also now offers more flexibility with expanded configuration options at each cooling capacity along with a reduction in sound levels. With optional Quick Start technology and lower requirements for maintenance (with glycol replacement only required every five years), the YVAA air-cooled screw chiller offers solutions for mission critical applications in harsh environments.