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How to covert a 220 motor to a 115vac motor. ao smith rpm3450 3.hp 15 amps

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If your label looks like this one and or if your label dose not have 120 as one of the voltages then you can not run the motor on 115 volts.
how to covert a 220 motor to a 115vac motor. ao sm - century-sq1302v1-2-yrzb4gnga4otx0okltvk2h2e-3-0.jpg

Posted on Apr 17, 2017

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When you wire the motor just use one of the 115 volt lines and ground. Tape up the other connection to prevent it from contacting anything else. Motor will spin at lower speed with less power but will work on 115 volts.

Posted on Apr 16, 2017


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Remove the rear cover and take a look. Unless this is a very old motor, there will be an indicator on the tab that will tell you the information you seek.

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A motor set up for 230VAC will run on 115VAC but will overheat and shut down over time. The motor nameplate should tell you what wires need to be reconnected and how in order to operate the motor on a 115VAC circuit. Once you change the wires your motor should go back to normal operation.


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