| 摘要 |
PROBLEM TO BE SOLVED: To reduce the installation cost of an air conditioner and simplify switching operation upon switching heating operation and cooling operation. SOLUTION: The air conditioner is provided with an air-conditioning machine 36, having at least a waste heat generating unit 1 provided with at least an engine or a fuel battery, a waste heat utilizing refrigerating machine 2 introducing hot-water generated in the waste heat generating unit 1 through a hot-water supplying flow passage 3 to generate cold heat, a cooling tower 6 connected to the waste heat utilizing refrigerating machine 2 through a cooling flow passage 7, a first heat exchanger 19 connected to the waste heat utilizing refrigerating machine 2 through a heat transfer flow passage 9, and a second heat exchanger 20 connected to a non-waste heat utilizing refrigerating machine 22 through a cold heat receiving and supplying flow passage 23, as well as a waste heat utilizing refrigerating machine detouring flow passage 24 connecting the hot-water supplying flow passage 3 to the heat transfer flow passage 9 so as to be capable of being communicated or intercepted.
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