OK guys. Time to save you some trouble. Reversing the blades will NOT change
the direction of airflow. You MUST reverse polarity on the motor to reverse
rotation to change direction of flow. NOW, some fan blades are not made to be
reversed. Some are made to operate in either direction but others are designed
to be either a pusher or a puller. If you reverse the polarity on the motor
either will push or pull BUT do a very poor job of moving air in the direction
it was not built for! On some fans you can reverse the polarity but reversing
the blades also will restore the efficient airflow in the desired direction.
You should consult the fan manufacture before trying to reverse the airflow or
you will wind up with about 1/2 of the cfm the fan was made to deliver and it
wont work worth a flip. Believe me I do know what I am talking about.
Jim in Waco
> >Andy's right. Do one or the other, but not both. It's probably easiest to
> >reverse the polarity of the fan motor. Do this by grounding the blue wire
> >instead of the black.
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