Two-speed fan control circuit

Published:2012/8/1 2:06:00 Author:Ecco | Keyword: Two-speed fan , control circuit | From:SeekIC

The two-speed exhausting fancomposed ofpole-changing adjustable speed motor is widely used in high-rise and underground buildings. Usually it runs at low speed; when the fireisbroke out, itcan be swicthed by manual, fire -place control systems or BAS system to high-speed operationautomatically to be used as exhausting fan. The circuit is shown as the chart.



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