本帖最后由 移民电工 于 2010-12-21 22:15 编辑 [ M4 ]; E' L- P5 v: V$ i u3 P
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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! , _, z5 ]1 H# J" o M7 J" T' F, M0 `# U5 R K
These kinds of device need be cleaning and maintaining before winter season.