The strands and wind shutters below the square pulse, every day before going to work need to be the first to open, let it work for 10 minutes before opening the fan and pulse on the control instrument to let the above solenoid valve work, each time after work to the last off the hanger and off the fan, so as to ensure that the ash in the hangers in time to discharge, will not accumulate in it, such as too much gray inside, to regularly clean up, to prevent the hang dragon stuck, off the fan block!
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