本帖最后由 移民电工 于 2010-12-21 22:15 编辑 ) I2 r9 |2 p! W& O0 h* J& d5 r( y
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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! 4 \' h, C }3 S1 ]' S, P; I ~- Q3 J
These kinds of device need be cleaning and maintaining before winter season.