Abstract
Multiple packaged air conditioning unit systems are widely recognized as one of popular air conditioning system for buildings.We developed a high performance multi-air-conditioning system (SUBCOOLING SYSTEM).This system is to cool the refrigerant by an additional heat exchanger.According to the field test for two years, the energy conservation of the SUBCOOLING SYSTEM was evaluated measuring the electric power. As a result, electric power consumption of this system is able to reduce 12-20% on the peak cooling load, and to reduce 13% in the cooling season as compared with the conventional multi-air-conditioning system.