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Hi Peter,<br><br>
The Outback inverter will not regulate battery charge while AC
coupled. The SMA is the only system designed to give a regulated
charge to batteries in the AC coupled mode. The Outback axillary relay
can be used to drive a relay that will disconnect the input to the
inverter, to regulate battery charge when grid is down. I like an
"Ice Cube Rely" (such as Idec) to control a contactor.
The coil of the Idec uses very little power. <br><br>
Why did you gravitate toward Xantrex from Outback?<br><br>
Drake <br><br>
<br><br>
At 09:25 PM 8/4/2009, you wrote:<br>
<blockquote type=cite class=cite cite=""><font size=2 color="#000080">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.<br>
<br>
</font><font face="Times New Roman, Times" color="#000080">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.<br>
<br>
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?<br>
<br>
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). <br>
</font><br>
<font face="Times New Roman, Times" color="#000080">- Peter <br>
</font>
<img src="cid:7.1.0.9.0.20090805094139.01eec818@redwoodalliance.org.1" width=67 height=80 alt="[]">
<font size=1 color="#000080">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
<br>
</font><br>
<font face="Times New Roman, Times" color="#000080"> <br>
<hr>
<div align="center"></font></div>
<font face="Tahoma" size=2><b>From:</b>
re-wrenches-bounces@lists.re-wrenches.org
[<a href="mailto:re-wrenches-bounces@lists.re-wrenches.org" eudora="autourl">
mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On Behalf Of
</b>William Miller<br>
<b>Sent:</b> Tuesday, August 04, 2009 5:55 PM<br>
<b>To:</b> jryago@netscape.com; RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] XW6048 parts problem<br>
</font><font face="Times New Roman, Times"> <br>
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>
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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<font face="Times New Roman, Times"><u>Please note new e-mail address and
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<font color="#0000FF">Drake Chamberlin<br>
Athens Electric<br>
OH License 44810<br>
CO License 3773<br>
NABCEP </font><font size=1 color="#0000FF">TM
</font><font color="#0000FF">Certified PV Installer <br>
Office - 740-448-7328<br>
Mobile - 740-856-9648 </font></body>
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