| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out air conditioning with a high energy-saving effect using outside air even in midsummer with a high cooling load while making effective use of an existing heat storage tank when constructing a building multi-air conditioning system by renovating an air conditioning facility that uses water in the heat storage tank as a central heat source type cold heat source. <P>SOLUTION: When constructing the building multi-air conditioning system by renovating the air conditioning facility that uses water in the heat storage tank 1 as the central heat source type cold heat source, the existing heat storage tank is used as it is as a heat storage tank 1 of a new air conditioning system. At night, water in the heat storage tank 1 is cooled by a cooling tower 4 using outside air. During daytime cooling operation, a refrigerant circulated between an outdoor unit 11 and an indoor unit 12 is heat-exchanged beforehand with water in the heat storage tank 1 by a refrigerant-water heat exchanger 21. <P>COPYRIGHT: (C)2013,JPO&INPIT |
