| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect an abnormal attachment/detachment of an intermediate duct member from a setting state and an actual temperature state in a display chamber without providing a detachment detecting switch of the intermediate duct member. <P>SOLUTION: The showcase includes: the intermediate duct member 35 with an intermediate duct 38 communicating with a back duct 7 attached detachably in the display chamber 11; a lower part temperature sensor 28 for detecting the temperature in the display chamber 11 below the duct member; and an upper temperature sensor 27 for detecting the temperature in the display chamber 11 above the duct member. The generation of the abnormality related to an attachment of the intermediate duct member 35 is determined when there is contradictory between settings of the use of a uniform temperature zone and the use of an upper and lower different temperature zones set by a setting changing switch 26 and the detected temperatures of the temperature sensors. <P>COPYRIGHT: (C)2012,JPO&INPIT |
