| 摘要 |
PROBLEM TO BE SOLVED: To effectively settle inability issue of rotation caused by freezing of a fan of a cooling storage.SOLUTION: A control device 40 performs, based on the temperature of a freezing chamber 3 and a cooling chamber 4, cooling operation by controlling fans 7F and 7R and the refrigerant supply to evaporators 5 and 6, and stops the fan and the refrigerant supply to the evaporator. Defrosting heaters 46 and 47, drain pan heaters 48 and 51, and fan case heaters 49 and 52 are energized for executing defrosting operation of the evaporator. When the defrosting operation is completed, energizing to the defrosting heater is stopped. After completion of the defrosting operation, if the fan is rotatable, energizing to the heaters 48, 51, 49, and 52 is stopped to return to cooling operation, but if it is not rotatable, energizing is continued to the heaters. |
