本帖最后由 移民电工 于 2010-12-21 22:15 编辑 - A; o" A$ X( j
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This 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! # J2 x, ^; L/ F& K5 \ ( K+ T5 a0 n1 O: MThese kinds of device need be cleaning and maintaining before winter season.