22 May 2002

A5-05 Development Of The Ice Thermal Storage Multi-Split System Conditioner Utilizing An Alternative Refrigerant – T.Ashida et al (Japan)


In recent years, the penetration of air conditioners and office automation facilities increase the electric power demand disparities among seasons and even for daytime and nighttime uses in Japan. Thus, the ice thermal storage air conditioners have been rapidly spreading to level the annual power load. Also, the needs of the HFC refrigerant, which has zero ozone depletion potential, are increasing from a viewpoint of ozone layer protection.
In cooperation with The Tokyo Electric Power Co., Inc., Chubu Electric Power Co., Inc., The Kansai Electric Power Co., Inc. and Daikin Industries Ltd., the ice thermal storage multi-split system air conditioner “EXG50Z series”, utilizing the HFC refrigerant, R407C, has been developed to contribute power load-leveling and energy saving.
In this paper, the technical features of the ice thermal storage multi-split system air conditioner “EXG50Z series” are clarified.