| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an air conditioning device which can further improve energy saving performance by further suppressing the frequency of the start and stop of a compressor. <P>SOLUTION: A control device 41 calculates an air conditioning load temperature difference based on the difference between a suction temperature and a set temperature in an indoor machine 30, calculates the amount of control effect by subtracting the air conditioning load temperature difference in last time from the air conditioning load temperature difference before the last and calculates an air conditioning load upper limit rotational speed based on the air conditioning load upper limit rotational speed, the air conditioning load temperature difference and the amount of the control effect in the last time, to control the upper limit of the rotational speed of a compressor 12 based on the air conditioning load upper limit rotation speed. The control device 41 compensates the air conditioning load temperature difference so that the suction temperature in the indoor machine 30 hardly converges on the set temperature in an energy saving control mode. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
