本帖最后由 移民电工 于 2010-12-21 22:15 编辑 ( D; L) U; \- A- Y& o5 } " [2 u6 f& C* O5 oThis 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!6 y9 \2 S" m7 Q0 q
: d$ R4 [+ h& x, g s, cThese kinds of device need be cleaning and maintaining before winter season.
本帖最后由 移民电工 于 2010-12-21 22:17 编辑 9 `% d* l5 f# K9 z8 }, a! S. @& ]8 Z: _ K3 Q! c, c* Q
If you do not know these tasks, hire a qualified service specialist.