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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Morning Wrenches,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I will try to find the ticket. Maybe The installer built a small
shelter to fully insulate the inverter, let me look into it. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It will be a couple of days though, as we are moving to a new
office building.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>SMA had special circumstances to bring the cold weather units to
Canada. The FIT program there was starting and they needed the temp rating for
our inverters.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Also, the UL/CSA certifications were much simpler and quicker to
do for having them just be in Canada for the moment.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>We will be bringing these units to the states, I believe it will
be when we have the next round of FW listed. Not sure of an exact date though.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>One thing to note for you Windy Boy users, these units have the
polynomial curve programming in them, way more advanced than the current 3
point power curve.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>SMA America, LLC<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Steve Jefferson<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Sr. Technical Service Specialist, Sunny Family</span></i><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>6020 West Oaks Blvd, Suite 300<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Rocklin, CA 95765 - 3714<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>U.S.A.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Tel: +1 916 625 0870<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Fax: +1 916 624-2445<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Service Line +1 877 697 6283 (Toll Free)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Email: steve.jefferson@sma-america.com<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.sma-america.com/">www.SMA-America.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'> <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>This email and any attachments thereto may contain SMA America,
LLC confidential, privileged and private material for the sole use of the
intended recipient. Any review, copying, or distribution of this email (or any
attachments thereto) by others is strictly prohibited. If you are not the
intended recipient, please contact the sender immediately and permanently
delete the original and any copies of this email and any attachments thereto.
Thank you.<o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<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";
color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:
"Tahoma","sans-serif";color:windowtext'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b>On Behalf Of </b>Allan
Sindelar<br>
<b>Sent:</b> Thursday, January 19, 2012 7:48 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Inverter temperature (was Electrolytic Caps
vs. Thin Film Caps)<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Steve,<br>
My understanding is that wind chill by definition only affects living things.
>From Wikipedia: "The rate of heat loss by a surface through convection
depends on the wind speed above that surface: the faster the wind speed, the
more readily the surface cools. For inanimate objects, the effect of wind chill
is to reduce any warmer objects to the ambient temperature more quickly. It
cannot, however, reduce the temperature of these objects below the ambient
temperature, no matter how great the wind velocity." <br>
<br>
So in a high wind an inverter will cool more quickly until it reaches ambient
temperature, but it won't be any warmer inside a enclosure. If the inverter is
producing enough internal heat through inefficiency, an enclosure could slow
the rate of heat loss enough to warm surrounding internal components a bit
more. But this wouldn't have any effect on the inverter in your New Jersey
example, as the inverter can't produce heat until it's in operation.<br>
<br>
Could there be another explanation?<br>
Thanks,<br>
Allan<o:p></o:p></p>
<div>
<p class=MsoNormal><b>Allan Sindelar</b><br>
<span style='font-size:10.0pt'><a href="mailto:Allan@positiveenergysolar.com"><span
style='color:#000099'>Allan@positiveenergysolar.com</span></a></span><br>
<span style='font-size:10.0pt'>NABCEP Certified Photovoltaic Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
<b>Positive Energy, Inc.</b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b>505 424-1112</b><br>
<a href="http://www.positiveenergysolar.com/" target="_blank">www.positiveenergysolar.com</a></span>
<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;margin-right:722.25pt;
mso-margin-bottom-alt:auto'><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<p class=MsoNormal><br>
On 1/19/2012 4:01 PM, Steve Jefferson wrote: <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>Afternoon
Wrenches,</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>All
SMA models in the US are rated for -25C (-13F). Canadian models are rated for
both -25C and -40C.</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I
highly recommend if installing in areas with any extreme temperatures, to build
an enclosure around the units. Sometimes with the wind chill factor temps can
be quite more than just the ambient temp. Installing in a conditioned building
is always ideal though.</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I
talked with an installer in New Jersey who had a system that was not turning on
until late morning. He went out with in early morning with and took the
temperature from one of the caps and it was about -30 F. We figured out that
this extreme cold was caused by the north to south wind hitting the inverter,
mounted on the backside of the ground mount. He built a little wall to protect
from the wind, and the problem was solved.</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>SMA America, LLC</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Steve Jefferson</span><o:p></o:p></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Sr. Technical Service Specialist, Sunny Family</span></i><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>6020 West Oaks Blvd, Suite 300</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Rocklin, CA 95765 - 3714</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>U.S.A.</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Tel: +1 916 625 0870</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Fax: +1 916 624-2445</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Service Line +1 877 697 6283 (Toll Free)</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'>Email: <a href="mailto:steve.jefferson@sma-america.com">steve.jefferson@sma-america.com</a></span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.sma-america.com/">www.SMA-America.com</a></span><o:p></o:p></p>
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