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<DIV><FONT face="Lucida Sans">Chris,</FONT></DIV>
<DIV><FONT face="Lucida Sans"></FONT> </DIV>
<DIV><FONT face="Lucida Sans"> I've
seen a bladder tank modulate the "shut-down" process in a up-the-hill gravity
feed tank when using a (IMO) more reliable float valve rather than a float
switch. Watts model number 1250 is an example of a toilet tank method of
stopping/starting flow to a tank. With the bladder tank and a standard
issue Sq D. pressure switch (in the vicinity of the wellhead) it seems
to be a pretty bomb -proof set-up.</FONT></DIV>
<DIV><FONT face="Lucida Sans"></FONT> </DIV>
<DIV><FONT face="Lucida Sans">Bill Battagin</FONT></DIV>
<DIV><FONT face="Lucida Sans"></FONT> </DIV>
<DIV><FONT face="Lucida Sans">Feather River Solar Electric<BR>4291 Nelson
St.<BR>Taylorsville, CA 95983<BR>530-284-7849/6544 fax</FONT></DIV>
<DIV><FONT face="Lucida Sans"></FONT> </DIV>
<DIV><FONT face="Lucida Sans"></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=chris@solarwindworks.com href="mailto:chris@solarwindworks.com">Chris
Worcester</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=Allan@positiveenergysolar.com
href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</A>
; <A title=re-wrenches@lists.re-wrenches.org
href="mailto:re-wrenches@lists.re-wrenches.org">'RE-wrenches'</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, June 16, 2010 1:34
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [RE-wrenches] two VFX3524's
and a Franklin 3hp sub pump</DIV>
<DIV><BR></DIV>
<DIV class=WordSection1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Great
ideas on load management to save the DC/AC system sizing. I haven’t spent time
researching their need for this 3hp pump or age and all, but definitely worth
looking at that side. Since it does pump to the 3000g gravity feed tank up the
hill. What’s strange is there is still a bladder tank in the garage, possibly
decommissioned when they added the gravity system.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Calibri','sans-serif'">Sincerely,<BR><BR>Chris
Worcester<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Calibri','sans-serif'">Solar
Wind Works<BR>NABCEP Certified PV Installer<BR>Phone: 530-582-4503<BR>Fax:
530-582-4603<BR><A
href="http://www.solarwindworks.com/"><U>www.solarwindworks.com</U></A><BR><A
href="mailto:chris@solarwindworks.com"><U>chris@solarwindworks.com</U></A><BR>"Proven
Energy Solutions"</SPAN><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">
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> Tuesday, June 15, 2010 8:48 PM<BR><B>To:</B>
jryago@netscape.com; RE-wrenches<BR><B>Subject:</B> Re: [RE-wrenches] two
VFX3524's and a Franklin 3hp sub pump<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt">Chris,<BR>We deal with deep
wells routinely.<BR><BR>Recently we installed a GTWB system for a very
enjoyable retired couple. Their needs included the goat milker, sheep barn,
two freezers and a fridge, and irrigation well pump, with the system sized for
continuous operation in the event of a long-term (i.e. permanent) loss of the
grid. This was on one acre in the suburbs south of Albuquerque. We used an
XW4548, as it was the only battery-based, 120/240, single-inverter, grid-tie
unit available currently.<BR><BR>As part of the normal load-reduction process,
we determined that the 2hp conventional well pump could be replaced with a 1hp
soft-start SQ and have adequate head and flow for their sprinklers. Changing
out the pump way more than paid for itself in the amount of inverter capacity
we didn't need. <BR><BR>I would encourage you to look at both of these related
issues carefully as part of this situation: could a smaller pump meet the head
and flow requirements of this site, and is a soft-start pump available?
Usually, if an inverter or stack of them can't handle a big inductive load
like a conventional pump, it's because of the starting surge. I suspect a
smaller soft-start pump may be doable in your
situation.<BR>Allan<o:p></o:p></P>
<DIV>
<P class=MsoNormal><SPAN class=il><B>Allan</B></SPAN><B> Sindelar</B><SPAN
style="FONT-SIZE: 10pt"><BR><A href="mailto:Allan@positiveenergysolar.com"
target=_blank><SPAN
class=il><U>Allan</U></SPAN><U>@positiveenergysolar.com</U></A><BR>NABCEP
Certified Photovoltaic Installer<BR>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><U>www.positiveenergysolar.com</U></A></SPAN><o:p></o:p></P>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><o:p> </o:p></P></DIV>
<DIV>
<P class=MsoNormal>Hello offgrid Wrenches,<o:p></o:p></P>
<P class=MsoNormal>I just inherited an off grid system with one VFX3524
inverter running the home loads, and a 17kW Guardian Generac they use for
charging (through an X-240 back into the inverter) & to run their Franklin
3hp 240 VAC well pump, S. F. max amp 17.0 ( rated on its
controller)<o:p></o:p></P>
<P class=MsoNormal>This is a really convoluted system as they have another
120/240 VAC Transformer to have the inverter talk to the 240 volt signal the
gen set needs to see. Yikes.<o:p></o:p></P>
<P class=MsoNormal>So I am proposing to add a second inverter if it can run
the well pump and eliminate the extra transformer. This will also reduce gen
set run time in half while battery charging, a big plus with the nice 24V
Hawker battery bank, 1020 AH at the 6 hour rate.<o:p></o:p></P>
<P class=MsoNormal>There aren’t any other unusual large AC loads in the home,
just the fridge, washer, computer, and such. LPG for cooking, water heating,
clothes dryer. <o:p></o:p></P>
<P class=MsoNormal>Thanks in advance for all ideas here!<o:p></o:p></P>
<P class=MsoNormal> <o:p></o:p></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; COLOR: navy">Sincerely,<BR><BR>Chris
Worcester</SPAN><o:p></o:p></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: navy">Solar Wind
Works<BR>NABCEP Certified PV Installer<BR>Phone: 530-582-4503<BR>Fax:
530-582-4603<BR><A
href="http://www.solarwindworks.com/"><U>www.solarwindworks.com</U></A><BR><A
href="mailto:chris@solarwindworks.com"><U>chris@solarwindworks.com</U></A><BR>"Proven
Energy Solutions"</SPAN><o:p></o:p></P>
<P class=MsoNormal> <o:p></o:p></P></DIV></DIV>
<P>
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