本帖最后由 移民电工 于 2010-12-21 22:15 编辑 " q2 ^$ k' M, z' u H
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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! # J5 L" I8 N8 _9 A/ J2 z; \: g9 O, S& r Z
These kinds of device need be cleaning and maintaining before winter season.