本帖最后由 移民电工 于 2010-12-21 22:15 编辑 7 o7 ?) q' z7 y' n
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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!& U1 A5 _9 v" H, I2 O8 o
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These kinds of device need be cleaning and maintaining before winter season.