| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic vending machine capable of executing desired heating or cooling without being affected by an outside-chamber temperature even if performing heat pump operation. SOLUTION: "Electronic expansion valve opening" such that the evaporation temperature becomes the second setting temperature is set: (S3) by discriminating at first whether a present operation mode is a "simultaneous heating/cooling operation mode" or a "heating single operation mode":(S1), measuring an outside air temperature when the operation mode is the heating single operation mode: (S11), and setting a control target temperature of an evaporation temperature as a "second setting temperature (e.g. a temperature lower than the outside air temperature by 5-10°C)": (S12). Thereafter, the "electronic expansion valve opening" is instructed to an electronic expansion valve: (S4), the evaporation temperature is measured, and the opening of the electronic expansion valve is readjusted such that the evaporation temperature follows the target when a difference with the target "second setting temperature" occurs: (S5). When the evaporation temperature according to the target is obtained, operation is returned again to a decision part (S1) of the operation mode, and similar control is repeatedly continued. COPYRIGHT: (C)2007,JPO&INPIT
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