Now we are in the blower fan assembly area. Let's introduce it on my left.  First, we need to stand on the side of the motor, and then look at the direction of the fan outlet. Clockwise rotation is right rotation, counterclockwise rotation is left rotation.  The exit Angle has left 45 degrees, left 90 degrees .  The above method is an introduction in writing.  

Here is a simpler method to introduce to you. We still stand on the side of the motor and look at the contour line at the fan outlet. Which direction the contour line faces is what rotation direction.  You can also use your arm to judge, so that your arm is raised in the direction of the contour line. Take this fan as an example, raise your right hand, so it is right-handed, and vice versa.  

I believe that after hearing this, you should have gained something. In the next period, we will introduce how to distinguish the turning direction of the regulating door. That's all for today's introduction.