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<p>Oh well maybe I'm completely full of Hot air on this fine Friday
morning. Sorry, I just assumed it could be set to 12v. II just
checked the specs, and it actually is only compatible with 24 v
and up battery banks. <br>
</p>
<p> Personally I run the PV numbers on a calculator and when I
multiply 100 amps x 12 v (1200 watts) and only get 4 of
yesteryear's solar modules on a controller that cost more than the
array, I always, always talk the client into going to 48v, or I
don't touch it, cause its all archaic equipment I don't want to
take responsibility for. <br>
</p>
<p>Sorry again for making a bad assumption. <br>
</p>
<pre class="moz-signature" cols="72">Ray Walters
Remote Solar
303 505-8760</pre>
<div class="moz-cite-prefix">On 4/24/20 1:20 PM, Jerry Shafer wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAMUFgmWJiFYoXHm582SuJgEbveJKFdUD8kSZz=9t6Bkgs0uFFw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">Wrenches, Ray
<div dir="auto">How do you program a FM 100 to 12 volts, l do
not see that's programmable to be set to do that</div>
<div dir="auto">Jerry</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Fri, Apr 24, 2020, 10:16 AM
Ray <<a href="mailto:ray@solarray.com"
moz-do-not-send="true">ray@solarray.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">This is a
classic off grid conundrum we've dealt with for decades. <br>
Generally it take more money than the client wants to spend.
12 v is a <br>
serious limitation, not just for the PV array, but the
inverter and <br>
battery layout as well. What inverter do they have? How old
is it? <br>
What battery are they running? How old is the battery? What
are their <br>
expansion needs? How far is grid away?<br>
<br>
I look at all these things when working with the owner of one
of these <br>
legacy 12 v systems. Generally it costs serious money to
rewire to <br>
higher voltage, but it usually solves multiple problems that
they needed <br>
to solve anyway.<br>
<br>
On the other hand, if you want to stick with 12 v, you CAN use
the FM <br>
100, and just use the MATE 3 to program the controller, then
pull it. <br>
We have numerous FM 100s, and we have only one MATE 3 that
lives in the <br>
shop. It brings the cost to the customer down significantly
and <br>
prevents unnecessary tampering with settings. $600 for the
MATE 3 is <br>
just stupid. You can buy a decent laptop for that.<br>
<br>
Ray Walters<br>
Remote Solar<br>
303 505-8760<br>
<br>
On 4/24/20 10:39 AM, Jay wrote:<br>
> Hi All,<br>
><br>
> Are there any CC out there that can parallel on the input
side?<br>
><br>
> Situation is a older 12v system, 300\u2019 wire run using a MX
60.<br>
><br>
> Client wants more PV, but CC is maxed out. Upgrading to
say FM-100 is way expensive and needs new mate etc.<br>
> Yes could totally redo the system to 24 or 48v and use
iota for 12v loads. Buts that\u2019s expensive.<br>
><br>
> Installing new wire would be complicated and expensive.
But wire is large enough to handle more power.<br>
><br>
> Are there are any cc that can parallel on the input side,
which would be the easy solution if it exists<br>
><br>
> Thx<br>
><br>
> Jay<br>
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