本帖最后由 移民电工 于 2010-12-21 22:15 编辑 ! o+ e* a' X, H/ y * h3 K5 l- w- G3 W# OThis is a horizontal furnurs mount on the top of building and intake air form outsid of building, I think you can not fix it by yourself!' @( E* K: V) y- z; S6 H. K
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These kinds of device need be cleaning and maintaining before winter season.