This paper reports about a centrifugal heat pump producing high temperature water. The heat pump is charged a single refrigerant HFC-134a and is adopted for a high efficiency centrifugal compressor and a brazed plate heat exchangers. Rated performance of the heat pump confirmed COP=3.0. The heat pump was applied for a transformer manufacturing factory as an alternative to the boilers. Low temperature heat source of the heat pump is exhaust gas in the factory. As a result, the heat pump has been satisfied high COP at factory operations. In addition primary energy consumption of manufacturing system has been reduced by 27%. And CO2 emissions of manufacturing system has been reduced by 44%.
