Thread: Variable Speed Control For A 220v Fan?
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Quote:
Originally Posted by 1990C4S View Post
You would wire a rheostat back to the controller. 0-100% speed control.
This. A VSD/VFD and in the space via low voltage wire an on/off for a binary input to start the fan and a rheostat to control speed. Very simple.

Speed drive would have to be programmed as mentioned for minimum fan speed.
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Old 06-01-2020, 09:24 AM
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