| 摘要 |
PROBLEM TO BE SOLVED: To avoid a concern or emergency stop of a compressor by reducing load applied to the compressor even in an initial operation.SOLUTION: In an initial operation of an automatic ice maker, a compressor CM is activated, and deice operation is started when pressure of refrigerant in a high pressure side and in a low pressure side is balanced in the compressor CM by opening a hot gas valve HV during a protecting time of the compressor CM. The hot gas valve HV left opened is closed, and the closing of the hot gas valve HV is continued for a while directly after activation of the compressor CM during the deice operation. |
