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Greenville, SC
reply to PSWired

Re: Variable speed drive

Check out the A. O. Smith retrofit motors. »www.centuryelectricmotor ··· 3&id=296
Theirs have the intelligence so that one motor will replace multiple HP sizes. It also learns which direction it is supposed to turn and the speed at which to turn. Great for those that need to carry spares on their trucks. It is made to plug right in where the PSC motor came out.


Greenville, SC
By the way, the biggest beauty of the ECM's is that they draw a lot less power. My PSC motor pulled 900 watts. The ECM draws 75 watts. Since I run my fan 24x7, it paid for itself in about 12 months with the power savings.