本帖最后由 移民电工 于 2010-12-21 22:15 编辑 ' ^( f: |' B% e' a
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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!) E6 m$ E7 D( H* p0 x4 @/ g
) R+ a. Q' Z( p' QThese kinds of device need be cleaning and maintaining before winter season.