| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the generation of a useless electricity expense of a store as a whole and to save energy in a showcase and an air conditioner in one and same store by changing the operation condition of the air conditioner and by confining an environment in the installation place of the showcase to a rated condition corresponding to a change when the internal environment of the store varies according to the external environment of the store which varies with time. <P>SOLUTION: In the case that a required cooling capacity of the showcase runs short due to a showcase environmental factor, the operation of air conditioners in the same store is increased to improve the environmental factor of the showcase for performing the control to lower the cooling capacity of the showcase. In the case that the required cooling capacity of the showcase runs short due to the environmental factor of the showcase and the air conditioner is stopped, the stopped air conditioner is operated to perform the cooling operation forcibly. When it is not in the operation of cooling condition, it is changed into the operation of cooling condition and when it is in the heating operation, the operation is continued lowering a target temperature while in the heating operation. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
