本帖最后由 移民电工 于 2010-12-21 22:15 编辑 % p+ d h' T4 `
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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!& ~& D/ U9 w5 F
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These kinds of device need be cleaning and maintaining before winter season.