| 摘要 |
PURPOSE:To evade the temperature rise of a showcase by arranging a fan to send the cold air to the showcase between two coolers and performing defrosting by injecting high temperature cooling medium solution to another cooler while the cooling operation of one cooler is being performed. CONSTITUTION:A cold air supply chamber 3 is arranged under a showcase main body 2, and a front cooler 31 and a rear cooler 32 are arranged respectively at the entry 24 side and at the exit 23 side of the cold air supply chamber 3. The fan 33 is provided between the front cooler 31 and the rear cooler 32, and when the cooling operation of the front cooler 31 is performed, the defrosting operation of the rear cooler 32 is performed by injecting the high temperature cooling medium solution, which prevents both coolers 31, 32 from stopping due to defrosting. In this way, it is possible to evade the temperature rise of a refrigerated showcase 1 and to perform a low temperature operation. |
