本帖最后由 移民电工 于 2010-12-21 22:15 编辑 * q: d( N2 ^5 i; X7 ]$ T+ y5 l8 L2 Y9 [9 k [
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! + E2 N6 Z& Y. i% Y # S) N! e( w+ \3 G4 Q9 F# |% A XThese kinds of device need be cleaning and maintaining before winter season.