本帖最后由 移民电工 于 2010-12-21 22:15 编辑 & R0 J5 U1 }" K1 H$ R, z) H7 n2 ^$ S7 O1 x
This 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!. u; j5 @/ u' m/ W$ o9 ]# }
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These kinds of device need be cleaning and maintaining before winter season.