本帖最后由 移民电工 于 2010-12-21 22:15 编辑 $ I$ Y8 N: Y, ~3 o
/ ] x0 G: D% 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! 5 h7 L- a x; R% I' n2 x/ {3 t( g! d
These kinds of device need be cleaning and maintaining before winter season.