| 摘要 |
PURPOSE:To certainly prevent a heat exchange element from falling down when the heat exchange element is mounted, by providing an extension part on a fixing bracket to allow the closing motion of an element cover only when the fixing bracket is in fixing posture. CONSTITUTION:When a worker tries to shut an element cover 30 with a fixing bracket M1 in the releasing posture during setting work of a heat exchange element 20, an extension part 1c of the fixing bracket M1 is kept from passing through a relief of the element cover 30. As a result, the extension part 1c hinders the closing motion of the element cover 30, and the worker can not finish the setting work of the heat exchange element 20. In other words, the worker has to surely shift the fixing bracket M1 to the fixing posture prior to the closing action of the element cover 30. |
