本帖最后由 移民电工 于 2010-12-21 22:15 编辑 9 D. H" c) j4 i5 T- U# e1 n9 ^, P) O p
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! 3 P& b J! r8 B6 j * m6 f1 \; g1 r) yThese kinds of device need be cleaning and maintaining before winter season.