How to Confirm the Centrifugal Fan Outlet Angle?
Fan rotation is determined by looking at the fan from the drive end. For centrifugal fans, discharge is the direction the fan outlet points.
Specification of the rotation and discharge when ordering a housed centrifugal fan is required so that the fan will fit in your system properly.
From the motor side to look the centrifugal blower,
1. If the centrifugal fan impeller clockwise rotation, it is right. The air outlet towards to the left horizontally: right 0, the angle changes along the clockwise direction.
2. If the centrifugal fan impeller anti-clockwise rotation, it is left. The air outlet towards to the right horizontally: left 0, the angle changes along the anti-clockwise direction.