Recently, domestic demand in terms of both total capacity and number of shipments of
centrifugal chillers has been declining because of factors such as the trend of customers shifting
production facilities to overseas locations. Therefore, to motivate customers to select the
centrifugal chillers of Mitsubishi Heavy Industries Ltd. (MHI), products with functions and
specifications that satisfy customer requests for heat source equipment, including demands for a
reduction of electricity consumption and saving of installation volume space, are needed. The
GART series of large capacity centrifugal chillers achieves both high efficiency and a smaller size
in response to the requests of customers. By not only improving the performance and compactness
of its components such as the compressor and the heat exchanger, but also by using the space
effectively, the layout of the GART series has been optimized so that the space volume ratio is
enhanced. As a result, a rated COP (Coefficient Of Performance) of 6.5, a 6% increase of IPLV
(Integrated Part Load Value) compared with existing models and a 40% reduction of the space
volume of the machine compared with existing models have been attained.
