| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air conditioning system for an air-conditioned room arranged with a cabinet housing electronic equipment capable of improving an energy efficiency ratio. <P>SOLUTION: A first refrigerating cycle is composed of a first heat source unit 30 having a first compressor 32 and a condenser 35, and an evaporator 21 connected to a refrigerant piping 31 extended from the first heat source unit 30, and arranged on a rear door blocking an opening of the cabinet housing the electronic equipment with a fan. Air blown by the fan attached to the electronic equipment is cooled by the evaporator 21 of the rear door and returned to an air-conditioned room. A second refrigerating cycle air-conditioning the air-conditioned room has a second compressor 121, an outdoor heat exchanger 123, an expansion valve 124, and an indoor heat exchanger 131. A centralized controller 200 is provided, respectively operating the first and second refrigerating cycles within a range of improving total efficiency with respect to a refrigeration load. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
