本帖最后由 移民电工 于 2010-12-21 22:15 编辑 5 m$ y. i I& o/ U2 w 5 }+ s$ D9 H! \3 u* T2 uThis 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!% f: Z/ H( P, p$ R% z
% t. Y8 C4 }4 Y7 g2 X: jThese kinds of device need be cleaning and maintaining before winter season.