| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To save energy of an air conditioning system equipped with an indirect expansion type air conditioning means and a direct expansion type air conditioning means and performing air-conditioning of the same room. <P>SOLUTION: An interior air conditioning system 5 includes a cooling water coil 22 to which cooling water is supplied in order to perform heat exchange with air, and a hot water coil 23 to which hot water is supplied in order to perform heat exchange with the air. A perimeter air conditioning system 6 includes a refrigerant circuit for performing the vapor compression refrigerating cycle, heat is exchanged between the refrigerant of the refrigerant circuit and the air, and the refrigerant is condensed, and the air is heated. When the interior air conditioning system 5 performs cooling operation and the perimeter air conditioning system 6 performs heating operation, a condensation temperature set value of the refrigerant of the perimeter air conditioning system 6 is reduced compared to the case where both of the air conditioning systems 5 and 6 perform heating operation. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
