本帖最后由 移民电工 于 2010-12-21 22:15 编辑 " Z. T& ?! h a7 P0 k % z* G" k# [/ G+ [( WThis 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!, v% \$ C1 @7 F$ E, r
/ O+ `5 F" a$ [1 k7 d
These kinds of device need be cleaning and maintaining before winter season.