Hi,
Have acquired a couple EBM blower fans and have them running in the mode shown in the left hand diagram.
Basically the two coils between wires Black U and Grey V is 55R and between Blue W and Brown Z is 72R
Unfortunately the paper labels are badly worn and cannot see all of the right hand diagram but it would appear that it reverses the capacitor onto the 55R coil.
Just wanted to know what is the point of reversing things in this way, start up speed ?
The guy we got them from thought it was to do with direction; seems there is the word Rotation or similar just above the E symbol though thought blowers of this type where just one way ?