These include direct expansion systems that are able to operate at high return-air temperatures, suitable for the increased temperatures within which IT equipment works; chilled water systems that maximize freecooling
operation all year round and include a chilled water floor mount range and freecooling
chillers; as well as an adiabatic freecooling
chiller (Liebert AFC), which combines 3 cooling technologies (adiabatic cooling, freecooling
, and mechanical cooling) in a single unit and is capable of achieving a partial power usage effectiveness (pPUE) of 1.