本帖最后由 移民电工 于 2010-12-21 22:15 编辑 ( ?$ K* J! o) I5 k/ \
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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!! M- P: k0 {2 d: V4 Y$ d
4 R% K o2 G0 V0 M* Z3 _1 dThese kinds of device need be cleaning and maintaining before winter season.