KEN BROWN 12 Inch Variable Shutter Exhaust Fan Wall Mounted With Speed Controller 1800CFM For Garages And Shops,Greenhouse,Attic Ventilation

Perfect for removing excess heat, moisture,dust and odors from any residential or commercial spaceIncluds Speed Controller,range from 70% to 100% without creating background noise or hum at low speedsRust proof 3 aluminium blades improve air velocityWeather resistant aluminum shutterCorrosion resistant wire GuardsAutomatic Shutters that open and close in tandem with the operation of the fanFully enclosed motor is thermally protected and permanently lubricated for easy maintenance Superior Airflow Transfer?1800 CFM Rotating Speed?1650 RPM Wind Speed: 10.5M/S Watts : 63W Voltage: 120V/60Hz Firstly,the White wire of the fan is connected to the Black wire of the speed controller.Secondly,the White wire of the speed controller is connected to switch ,the Black wire of the fan is connected to Neutral and green wire to ground.Installation method and connection diagram are come with clear directions on the user manual. It is very easy to connect with the speed controller and install on the wall.Start by turning the knob to High and gradually decrease the power to you desired power level.When finished,turn knob back to OFF.If the speed controller is not connected, the exhaust fan will run at maximum speed.