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<p>Rewiring the array is not that hard. Why is he against that?
With old Jbox type modules, it usually is safer too, as those
often were paralleled at the modules, and often over loaded the
connectors. It would also increase his total power output by
reducing line losses. I think a careful inspection of the old
array wiring will reveal it needs rewiring anyway. Folks always
blamed lightning for cooked connectors, when the real culprit was
over paralleling. I've seen the connections get so hot (4th
module in parallel) that the j box was melted.</p>
<p>Ray Walters<br>
Remote Solar<br>
</p>
<div class="moz-cite-prefix">On 5/7/2024 1:09 PM, Andrew Perkins via
RE-wrenches wrote:<br>
</div>
<blockquote type="cite"
cite="mid:18f547648ca.ca09f7d3183624.7664287356964347527@greenwired.com">
<meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
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<div>Sorry yes for clarification that he wants to parallel the
INPUTS I am aware of paralleling the outputs we do that all
the time. Sorry for the confusion but seems like the census
now says NO on paralleling the 2 inputs from one array. </div>
<div><br>
</div>
<div id="Zm-_Id_-Sgn" data-sigid="4634369000000023001"
data-zbluepencil-ignore="true">
<p class="MsoPlainText" style="line-height:1"><span style="">Andrew
Perkins</span><br>
</p>
<p class="MsoPlainText" style="line-height:1"><span style="">Greenwired
</span><br>
</p>
<p class="MsoPlainText" style="line-height:1"><span style="">P:
707-923-2001 ext. 100</span><br>
</p>
<p class="MsoPlainText" style="line-height:1"><span style="">1150
#1 Evergreen Rd</span><br>
</p>
<p class="MsoPlainText" style="line-height:1"><span style="">Redway,
CA 95560</span><br>
</p>
<div><span style=""><a href="http://www.greenwired.com"
target="_blank" moz-do-not-send="true">www.greenwired.com</a></span><br>
</div>
<div style="line-height:1"><br>
<img style="" src="cid:part1.Z3Cks9zz.Q26eMjug@solarray.com"
class="" width="150" height="30"></div>
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style="color:rgb(203, 204, 0)"><span class="font"
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<div id="Zm-_Id_-Sgn1">---- On Tue, 07 May 2024 11:58:37 -0700
<b>Howie Michaelson via RE-wrenches
<a class="moz-txt-link-rfc2396E" href="mailto:re-wrenches@lists.re-wrenches.org"><re-wrenches@lists.re-wrenches.org></a></b> wrote ---<br>
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<blockquote id="blockquote_zmail" style="margin: 0px;">
<div>
<div dir="ltr">
<div class="x_856546575gmail_default"
style="font-family: verdana, sans-serif">Yes, output
not input. Thanks for clarifying that William...<br>
</div>
<div class="x_856546575gmail_default"
style="font-family: verdana, sans-serif">Howie<br>
</div>
<div>
<div><br>
<div>
<div dir="ltr" class="x_856546575gmail_signature">
<div dir="ltr"><span><span><span><span><span
class="colour" style="color:#888888"><span
class="colour"
style="color:rgb(106, 168, 79)"><b>Sun
Catcher</b></span></span></span></span></span></span><span><span><span
class="colour" style="color:#888888"><span
class="colour"
style="color:rgb(0, 0, 255)"><b><span
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style="font-size:10px"><i><br>
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id="1715108367655110003_imgsrc_url_0" moz-do-not-send="true"><br>
</b></span></span></span></span><span><span
class="colour" style="color:#888888"><span
class="colour"
style="color:rgb(0, 0, 255)"><b><span
class="size"
style="font-size:10px"></span></b></span></span></span><span><span
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class="colour"
style="color:rgb(68, 68, 68)"><span class="highlight"
style="background-color:rgb(255, 255, 255)"><span class="size"
style="font-size:13px">Solar Electric Systems Sales & Service<br>
</span></span></span><span
class="colour"
style="color:rgb(180, 95, 6)">802-272-0004</span></span></span></b></span></span></span></span></span></span></span></div>
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<br>
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<br>
<div class="x_856546575gmail_quote">
<div dir="ltr" class="x_856546575gmail_attr">On Tue, May
7, 2024 at 2:55 PM William Miller via RE-wrenches <<a
href="mailto:re-wrenches@lists.re-wrenches.org"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches@lists.re-wrenches.org</a>>
wrote:<br>
</div>
<blockquote class="x_856546575gmail_quote"
style="margin: 0px 0px 0px 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex">
<div class="x_856546575msg-2378070181044821727">
<div>
<div
class="x_856546575m_-2378070181044821727WordSection1">
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif"">Andrew:</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif""> </span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif"">I see no problem
paralleling the Charge Controller outputs
but I would not parallel the inputs. With
parallel inputs, unless there is
protection to prevent excessive current,
there is a risk that one CC will take over
and try to regulate the entire array.</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif""> </span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif"">I suggest you divide
up the panels to create one appropriately
sized discrete array into each CC. You
can parallel two strings of panels without
OCPD.</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif""> </span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif"">William</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif""> </span></span><br>
</p>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Arial, "sans-serif"">Miller Solar</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Arial, "sans-serif"">17395 Oak Road,
Atascadero, CA 93422</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Arial, "sans-serif"">805-438-5600</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Arial, "sans-serif""><a
href="http://www.millersolar.com/"
target="_blank" moz-do-not-send="true"><span
class="colour" style="color:blue">www.millersolar.com</span></a></span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Arial, "sans-serif"">CA Lic. 773985</span></span><br>
</p>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Calibri, "sans-serif""><span class="size"
style="font-size:11pt"> </span></span></span><br>
</p>
</div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span
class="colour"
style="color:rgb(31, 73, 125)"><span
class="font"
style="font-family:Verdana, "sans-serif""> </span></span><br>
</p>
<div>
<div
style="border-width: 1pt medium medium; border-style: solid none none; border-color: rgb(181, 196, 223) currentcolor currentcolor; padding: 3pt 0in 0in">
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><b><span class="font"
style="font-family:Tahoma, "sans-serif""><span class="size"
style="font-size:10pt">From:</span></span></b><span
class="font"
style="font-family:Tahoma, "sans-serif""><span class="size"
style="font-size:10pt"> RE-wrenches
[mailto:<a
href="mailto:re-wrenches-bounces@lists.re-wrenches.org" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Andrew Perkins
via RE-wrenches<br>
<b>Sent:</b> Tuesday, May 7, 2024 9:24
AM<br>
<b>To:</b> Re Wrenches<br>
<b>Cc:</b> Andrew Perkins<br>
<b>Subject:</b> [RE-wrenches] PWM
Controllers in parallel</span></span></p>
</div>
</div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"> <br>
</p>
<div>
<div>
<div>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">Hello
Wrenches,</span></span><br>
</p>
</div>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">
I have a client who has a
large 2000 watt 12v array that he
said used to be hooked into an
internal solar charger on his old
trace. Never seen a trace with one
of those in it but he claims it
could do 200a. This internal
charger has now died and needs a
replacement. He is refusing to
rewire his panels into a new
configuration and their aren't
many options for him out there. I
did get him a Coleman Aire 400a
Charge controller but it is more
of a load controller and wants to
be able to properly absorb is
batteries off the sun. He
currently has a c60 running only
part of the array and now he is
asking about running another c60
in parallel. Not quite sure if
this would work or not but my gut
feeling says no and there will be
problems. </span></span><br>
</p>
</div>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt"> </span></span><br>
</p>
</div>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">If anyone
knows of any controllers that
would fit that or if running those
in parallel works your advice
would be greatly appreciated. </span></span><br>
</p>
</div>
<div>
<p class=""
style="margin-top: 0px; margin-bottom: 0px;"><span class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt"> </span></span><br>
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class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">Andrew
Perkins</span></span><br>
</p>
<p
class="x_856546575m_-2378070181044821727x1415189516msoplaintext"><span
class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">Greenwired</span></span><br>
</p>
<p
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class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">P:
707-923-2001 ext. 100</span></span><br>
</p>
<p
class="x_856546575m_-2378070181044821727x1415189516msoplaintext"><span
class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
style="font-size:10pt">1150 #1
Evergreen Rd</span></span><br>
</p>
<p
class="x_856546575m_-2378070181044821727x1415189516msoplaintext"><span
class="font"
style="font-family:Verdana, "sans-serif""><span class="size"
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CA 95560</span></span><br>
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