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Thread: 230V Pump Motoe -Wired Backwards

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    230V Pump Motoe -Wired Backwards

    Folks,
    I just want to sanity check this. Am in process of installing AO Smith 230V motor. Plan is to make sure that Magnetek L1 wire is put onto the AO Smith L1 lug etc etc. INYO pool support says it doesn't matter, pump will still turn correctly regardless of L1/L2 matching to old pump. Is that true, reason I ask is of course the AO Smith L1/L2 internal wiring may be totally different than how Magnetek wired L1 / L2 internally. ...and it should rotate CCW (counter clock) when looked at from the basket end, is that also correct?

    Thanks

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    TFP Guide

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    Re: 230V Pump Motoe -Wired Backwards

    Single phase AC motors do not depend on the wiring connections for rotation. The rotation is designed into the motor windings. Connection to either L1 or L2 with either wire is acceptable.
    Unknown make 18' above ground (bought used in 1999) Sparco sand filter. Hayward 100,000 BTu heater. 2 speed pump

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    Re: 230V Pump Motoe -Wired Backwards

    Quote Originally Posted by danpik View Post
    Single phase AC motors do not depend on the wiring connections for rotation. The rotation is designed into the motor windings. Connection to either L1 or L2 with either wire is acceptable.
    OK sir, got it thanks. Much appreciated!

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    Re: 230V Pump Motoe -Wired Backwards

    Rotation only matters in 3 phase 208/460/480/600 VAC motors.
    20x40 inground liner pool.
    Hayward SP1030x152az pump
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    Richard320's Avatar
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    Re: 230V Pump Motoe -Wired Backwards

    You're confusing things with DC motors, where reverse polarity will cause the motor to go backwards. In AC, the voltage is constantly reversing anyway (About 60 times/sec ) so the motor doesn't care which lead is L1 or L2
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
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    Re: 230V Pump Motoe -Wired Backwards

    OK folks, thanks. She's up and running.

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