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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would like to start a thread on
AC-coupled grid tied battery backup systems. We do a fair number of GTBBSs
(four to five a year) and I have gravitated from the Outback solution to the
Xantrex XW solution. I am not happy with the XW product and especially not
happy with Xantrex’s post sales technical support. I know I have more to
learn about these puppies in general, so I am genuinely disappointed with the
uneven TS from Xantrex.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>I also had this nagging feeling that the
heart of a GTBBS should be the tried and true high voltage inverter. Enter the
SunPower positive ground requirement, and now an AC coupled system seems the
best solution.</span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>From the white paper that Outback sent me,
there was no mention of a heavy duty relay. Doesn’t the Outback inverter
regulate the battery charge control?</span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>Has anyone tried to order a SunWize “Solar
Ready Battery Assembly” without the charge controller (e.g. P/N SRB3.6).
It would seem that this is a nice package for small energy needs (13 to 26 kWh
of battery backup). </span></font></p>
<p><font size=3 color=navy face="Times New Roman"><span style='font-size:12.0pt;
color:navy'>- Peter </span></font></p>
<p class=MsoNormal><img width=67 height=80
src="cid:image003.gif@01CA1530.B0110780" align=left hspace=12><font size=1
color=navy><span style='font-size:9.0pt;color:navy'>Peter T. Parrish, Ph.D.,
President<br>
California Solar Engineering, Inc.<br>
820 Cynthia Ave., Los Angeles, CA 90065<br>
CA Lic. 854779, NABCEP Cert. 031806-26<br>
<a href="mailto:peter.parrish@calsolareng.com">peter.parrish@calsolareng.com</a>
<br>
Ph 323-258-8883, Mobile 323-839-6108, Fax
323-258-8885
</span></font></p>
<p><font size=3 color=navy face="Times New Roman"><span style='font-size:12.0pt;
color:navy'> </span></font></p>
</div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
re-wrenches-bounces@lists.re-wrenches.org
[mailto:re-wrenches-bounces@lists.re-wrenches.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>William Miller<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, August 04, 2009
5:55 PM<br>
<b><span style='font-weight:bold'>To:</span></b> jryago@netscape.com;
RE-wrenches<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [RE-wrenches] XW6048
parts problem</span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Jeff:<br>
<br>
I have a spare. They are not kept in the socket but are loose in a
bag. Send me your mailing address off list. I leave tomorrow for a
week, so I hope I see your address before I go.<br>
<br>
William<br>
<br>
<br>
<br>
<br>
At 04:59 PM 8/4/2009, you wrote:<br>
<br>
</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Just completed a large residential grid/gen/solar/battery system using
a XW6048 inverter.<br>
<br>
We are using a SunnyBoy inverter at the array and doing an AC coupled
backfeed. To do this we have installed a heavy duty relay in the output
of the SunnyBoy, and are using the aux. relay contacts on the XW unit to close
this relay when battery voltage is at high limit (during no load power outage
to prevent over-charging)<br>
<br>
Not sure if we lost it during installation, if it shook loose in shipment and
fell out, or was missing to begin with, but to connect to the aux. contacts in
th XW requires a very small green flat 5-pin connector which is missing.<br>
<br>
I contacted multiple people at Xantrex and their service center, waded through
their web site, and finally talked to a service tech. He advised that
"he was looking for an extra one of these connectors 6 months ago and
still has not received it, as these compoments are made and assembled in China
and they do not stock anything that is considered an assembly part used in
China to build their units."<br>
<br>
First, I did not realize these inverters were being assembled in China, and
second, who ever heard of not stocking a replacement part just because its made
in China. If that were true, 95% of everything sold today in US would not
be able to order replacement parts.<br>
<br>
Anybody out their know if there is a Radio Shack type supplier where I can
order a bag of these and get on with the system startup and my life?<br>
<br>
Thanks,<br>
<br>
Jeff Yago<br>
<br>
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<p></x-sigsep><u><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><x-sigsep>Please note new e-mail address and domain:<br>
<br>
</span></font></u>William Miller <br>
Miller Solar<br>
Voice :805-438-5600 Fax: 805-438-4607<x-tab> </x-tab><br>
email: william@millersolar.com<br>
<a href="http://millersolar.com/" eudora=autourl>http://millersolar.com<br>
</a>License No. C-10-773985</p>
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