本帖最后由 移民电工 于 2010-12-21 22:15 编辑 7 f4 t5 Q' r" }- Y, o
d! k, _. A! h- {' I& b& kThis 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!1 ]9 Z+ h, M7 B: K6 U/ G) D }+ u
+ Y" h* V) u0 ]0 hThese kinds of device need be cleaning and maintaining before winter season.