Electrical question, how to reduce fan speed in half

omid76

Active Member
Hello,

Can someone please tell me how can I change the wiring on my exhaustFan2.png fan to reduce the RPM in half
Thank you
 

tekdc911

Well-Known Member
there is no way on that fan you would need a variac controller
that fan has 2 sets of windings one is the one that runs the fan the other set is a smaller one that is actually what gets the fan rolling and the other keeps it going
 
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