Abstract
In recent years, there is a growing need for the high-efficiency air conditioners as a means of preventing global warming, In response to this need, we have developed the highest efficiency multi-split air conditioners in industry for office building use by using the R410A refrigerant and by improving the efficiency of constituent main components. In addition, we have improved the partial load efficiency by using variable-speed compressors and driving them all flexibly by the system controller. As a result of this improvement, the annual energy consumption is reduced by half compared to the conventional model.
