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    <p>The transformer is just to balance the legs, and isn't necessary
      to run the heat pump with 2 inverters.  On the programming, port 1
      should be <i>stack </i><i>1-2 ph Master</i>, and then set port 2
      to <i>Classic slave.</i>  <br>
    </p>
    <p>BTW,  we as an industry should move far away from this archaic
      and offensive labeling.  Master? Slave?   My daughter heard me
      mention that the other day and was mortified, as all of us should
      be too.  Gentlefolks, it's time for some 21st Century solar
      Vocabulary.<br>
    </p>
    <pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
    <div class="moz-cite-prefix">On 7/24/19 6:08 PM, David Palumbo
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:5d38f2fe.1c69fb81.8053d.90d2@mx.google.com">
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        <p class="MsoNormal">I apologize for my ignorance on this issue,
          but in all my years I have never had to power a 230V load with
          an OutBack system before. </p>
        <p class="MsoNormal">A couple of quick questions. It is a 8 year
          old OutBack system with two FX2524T\u2019s presently powering two
          120Vac legs with no 240Vac output.<o:p></o:p></p>
        <ul style="margin-top:0in" type="disc">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">Homeowner is
            adding a Fujitsu mini split heat pump for air conditioning
            the home (summers are getting hot enough for AC even in
            northern Vermont). <o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">It uses 7.9
            Amps @ 230Vac <o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">I have a OB
            PSX-240 Autoformer manufactured in 2008 in my inventory
            here. Should I use it for this application?<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">Do I wire it
            up just like in this schematic?<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">If so, what
            do I change in the programing on the Mate?  Presently it is
            ADV/FX/STACK  stack 1-2ph Master. Do I simply change it to
             ADV/FX/STACK  stack Classic Slave?<o:p></o:p></li>
        </ul>
        <p class="MsoNormal">Thanks,<o:p></o:p></p>
        <p class="MsoNormal">Dave Palumbo, Independent Power, Hyde Park,
          VT<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
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            alt="cid:image003.jpg@01D54135.D30AA520"
            moz-do-not-send="true" width="710" height="532"></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Sent from <a
            href="https://go.microsoft.com/fwlink/?LinkId=550986"
            moz-do-not-send="true">Mail</a> for Windows 10</p>
        <p class="MsoNormal"><o:p> </o:p></p>
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