| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air conditioner providing hot water supply utilization without impairing a heating capacity during heating operation. <P>SOLUTION: A hot water heat exchanger 52 for raising a temperature of utilization water by heat exchange with cooling water is provided in parallel with an exhaust heat recovery heat exchanger 48 by heat exchanging between the cooling water and a coolant, in a circuit 41 for cooling a gas engine. A judging means 62 is provided for judging whether or not exhaust heat recovery of the coolant in the exhaust heat recovery heat exchanger 48 is sufficient based on an operating state of heating operation. Control is carried such that when it is judged that the exhaust heat recovery is sufficient, at least one part of the cooling water is sent to the hot water heat exchanger 52. <P>COPYRIGHT: (C)2008,JPO&INPIT |
