Regarding the rotation direction of the exhaust fan
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The fan’s nameplate does not indicate either the rotation direction or the angle of the fan. How can one determine these values on the fan itself?
The rotation direction of a fan generally refers to the orientation of the fan’s outlet, rather than the direction in which the rotor rotates. The rotation direction is generally determined during design based on the layout.
When looking at the fan from the side of its motor, if the fan blows air in a clockwise direction, it has a right-handed rotation angle, such as 45 degrees to the right or 90 degrees to the right; otherwise, it’s the opposite
Standing on the side of the motor and looking at the fan, if the fan blows air in a clockwise direction, it is right-handed, such as 90 degrees to the right, 180 degrees to the right, etc； Counterclockwise air outlet means left-handed rotation