本帖最后由 移民电工 于 2010-12-21 22:15 编辑 9 ] i" N w; D( ?2 t' Q6 k
: m l( k+ [# K! J, CThis 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!0 Q: ~' O% h) O, O
1 N {1 P" b+ Q" f& {( ZThese kinds of device need be cleaning and maintaining before winter season.