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<p>I have a system with 3 FM 80s running in parallel with an FM 100
added later. Works fine, just not connected via the HUB. I don't
quite understand the voltage ratings. You would just have a 300 v
rated breaker on the PV side of the FM 100, so I totally don't see
what having 150 vdc rated breakers for other circuits in the same
box is an issue. All the wiring is THHN rated at 600 vdc. This
sounds like a solution looking for a problem. <br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 5/15/20 12:48 PM, William Miller
wrote:<br>
</div>
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">Jay:</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">On
the <a
href="http://outbackpower.com/products/charge-controllers/flexmax-100"
moz-do-not-send="true">FM100 landing page</a>. The
warning is pasted below.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal" style="margin-left:.5in"><i><span
style="font-family:"Verdana","sans-serif"">Due
to the different voltage ratings, OutBack Power does not
recommend mixing the FM100-300VDC with the FM60 or
FM80-150VDC controllers on the same battery bank.</span></i><i><span
style="font-family:"Verdana","sans-serif";color:#1f497d"></span></i></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">Interestingly
the warning is not seen on the <a
href="http://outbackpower.com/products/charge-controllers/flexmax-100-afci"
moz-do-not-send="true">FM100 AFCI landing page</a>.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">I
thought I saw this also in one of the Owner\u2019s manuals but I
looked today and can\u2019t find it there. Interesting\u2026</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">I
have a client that wants to add a fourth PV array to a
system with three FM80s. This will require a fourth charge
controller. Being able to run smaller wire in the existing
conduits is an attractive proposition, making the FM100 a
desirable approach. I now have to figure out if I can add
the FM100-AFCI (which is apparently the only version
available) to a system with three FM80s, and if I do, what
do I do with the existing GFDI breaker and how do I arrange
the DC bond? There is a lot to consider here.</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">BTW,
I was told by a tech support person for an on-line sales
firm that the original FM100 did not have the AFCI but those
units have been discontinued. Now all FM100s have the AFCI
capability. I am weighing if I want AFCI if it is not
required. My territory includes central California wild
lands so I suppose I should take advantage of any fire
safety means at my disposal\u2026</span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-family:"Verdana","sans-serif"">William</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif";color:#1f497d"> </span></p>
<div>
<div style="border:none;border-top:solid #b5c4df
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Jay [mailto:<a href="mailto:jay.peltz@gmail.com"
moz-do-not-send="true">jay.peltz@gmail.com</a>] <br>
<b>Sent:</b> Friday, May 15, 2020 7:34 AM<br>
<b>To:</b> <a href="mailto:william@millersolar.com"
moz-do-not-send="true">william@millersolar.com</a>;
RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Outback FM100</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">Hi William</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Yes downsizing breaker to meet load is no
problem. And getting wire that big into it with 1\u201d KO is a
pain. </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I\u2019m pretty sure any hub will work, needs
3S mate</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Where in the manual did you find the
\u201cdon\u2019t mix with other 60/80 controllers? </p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Jay</p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Peltz power </p>
</div>
<div>
<p class="MsoNormal"><br>
<br>
</p>
<p class="MsoNormal" style="margin-bottom:12.0pt">On May 15,
2020, at 12:46 AM, William Miller <<a
href="mailto:william@millersolar.com"
moz-do-not-send="true">william@millersolar.com</a>>
wrote:</p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal">\ufeff<span
style="font-size:12.0pt;font-family:"Times New
Roman","serif""></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Friends:</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I
have occasion to try the FM100 charge controller. I am
wondering of anyone had found any quirks with
implementing this device. I have a few specific
questions:</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span
style="mso-list:Ignore">1.<span style="font:7.0pt
"Times New Roman""> </span></span><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I
want to avoid AFCI unless mandated. Will this be
defeated if I don\u2019t run the leads through the sense
coil? (There is an AFCI and non-AFCI version but I can\u2019t
seem to find the non-AFCI version anywhere.)</span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span
style="mso-list:Ignore">2.<span style="font:7.0pt
"Times New Roman""> </span></span><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I
noticed the manual indicates you are not supposed to mix
the FM100 with the FM80 or 60 in the same battery
system. This negates it for one project I had in mind.
I am curious as to why this is. Anyone know?</span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span
style="mso-list:Ignore">3.<span style="font:7.0pt
"Times New Roman""> </span></span><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Will
the FM100 work with a standard hub?</span></p>
<p class="MsoListParagraph"
style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span
style="mso-list:Ignore">4.<span style="font:7.0pt
"Times New Roman""> </span></span><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">I
suppose this unit requires a 125 amp breaker. If the PV
array cannot support that full 100 amps I might
down-size the OCPD accordingly. Anyone contemplate this
question?</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">Thanks
in advance.</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif"">William</span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Verdana","sans-serif""> </span></p>
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