| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air conditioning device that can accurately perform the average level control of heat-source side units at both warming drive and cooling drive. <P>SOLUTION: The heat-source side units 100, 200 include: compressors 101, 201; four-way on-off valves 104, 204 which change passages of coolants discharged from the compressors 101, 201; heat-source side heat exchangers 105, 205; two pieces of bypass piping 131, 231 which make the coolants flow by bypassing a load-side unit 300; first throttle devices 107, 207 arranged at the bypass piping 131, 231; and second throttle devices 106; 206 for adjusting flow rates of the coolants flowing to the heat-source side exchangers at the warming drive. The heat-source side units also include control devices 1, 2 which calculate discharged overheat degrees of the compressors 101, 201 arranged at the heat-source side units 100, 200, and control openings of the first throttle devices 107, 207 and the second throttle devices 106, 206 on the basis of the discharged overheat degrees. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
