Mitsubishi Heavy Industries Thermal Systems, Ltd. has received a Minister of the Environment Award for Climate Action 2024 for the development of its JHT-Y/JHT-YI series of large-capacity centrifugal chillers adopting the HFO-1234yf refrigerant with a low GWP.
The constant-speed JHT-Y and inverter-equipped JHT-YI are new series for large-capacity centrifugal chillers launched in June 2022. Both models in the series adopt the HFO-1234yf refrigerant with extremely low environmental impact and the capacities ranging from 300 to 5,400 refrigeration tons (RT). The JHT-Y and JHT-YI are the first centrifugal chillers with capacities up to 5,400 RT commercially offered in Japan with a low-GWP refrigerant. The inverter-equipped model achieves an IPLV of 8.8 and a maximum part load COP of 24.9. A smaller compressor size, together with the optimized centrifugal chiller structure layout, also contributes to the effective use of the space, enabling smooth installation from existing equipment. The replacement of an existing equipment using a higher-GWP HFC (hydrofluorocarbon) refrigerant with the JHT-YI can reduce annual energy consumption and CO2 emissions by approximately 65%, contributing significantly to mitigating environmental impacts. The JHT-Y and JHT-YI models are also adaptable to a wide range of applications: air-conditioning, heating, as well as low-temperature and heating processes in beverage plants, etc.