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Bob,<br>
This doesn't make sense to me. A 12V standard-speed model #2920 runs
22A max; 24V is 11A max. A low-speed model #2910 runs 15A and 7.5A
max respectively.<br>
I would think that you could have used a circuit breaker to satisfy
the inspector, then added a time-delay fuse of the correct amperage
for your application in addition to the CB. <br>
<br>
The instructions in the manual are pretty clear (although if I used
an ATC fuse it would have to be after the inspector left; AGC
time-delay would more closely meet Code...):<br>
<blockquote>FAILURE TO INSTALL A FUSE OR BREAKER equal to or less
than the motor's Max Amps rating WILL VOID YOUR WARRANTY. If water
flow becomes blocked, or if the pump jams or freezes and cannot
turn freely, the motor will draw excessive current. A fuse or
circuit breaker will then break the circuit. Without such a
"safety valve", a minor fault can burn your motor and wiring.
Install a fuse or breaker with an AMP RATING close to the "MAX
AMPS" rating of your motor, OR LESS (but not more higher). If a
Linear Current Booster is being used (for array-direct Slowpumps)
install the fuse between the booster and the pump. Use the rating
recommended for the booster or for the pump, WHICHEVER IS LESS.
This fuse will protect the booster as well as the motor and wiring
from overload.<br>
<br>
FUSES: Use a “time-delay” type. The 3" paper cartridge type is
good, and may be installed into a raintight disconnect switch
available at any electric supplier. An automotive in-line fuse
holder is fine for 12 or 24V systems. Automotive blade fuses (type
ATC) are preferred over glass fuses. They have sufficient
time-delay. (Time-delay glass fuses are available from ELECTRONIC
suppliers only, not automotive.) Use good quality fuse holders,
protected from weather. Keep spare fuses handy. Never substitute a
larger fuse!<br>
<br>
CIRCUIT BREAKERS: Most AC breakers cannot be used for low voltage
DC circuits. We recommend only the SQUARE-D® QO or QB-series which
been rated safe up to 48 volts DC. A 10 amp size is available, but
not in most stores. It may be ordered from your PV dealer or from
an electric supplier.<br>
</blockquote>
Locking up is usually a result of freezing. I have seen one motor
ruined in all of my years with this pump, and it was the result of
freezing and improper fusing. If the pump is installed correctly,
and the correct inlet fitting with safety screen is used, there is
little else to cause a lockup. And the fuse protection is designed
to protect the pump in the event of such damage. Freezing solid will
usually ruin the head but not the motor if it's fused correctly.<br>
<br>
Allan<br>
<br>
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<font face="Times New Roman, Times, serif"><b>Allan Sindelar</b></font><br>
<small><a href="mailto:Allan@positiveenergysolar.com"><font
color="#000099" face="Times New Roman, Times, serif"><u>Allan@positiveenergysolar.com</u></font></a></small><font
face="Times New Roman, Times, serif"><br>
<span style="font-size: 10pt;">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"><u>www.positiveenergysolar.com</u></a><o:p></o:p></span></font>
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<br>
On 10/20/2011 4:09 PM, bob ellison wrote:
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<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;">I
HAD one installed and the inspector would not let me use
an inline fuse (seems like it was a 1 amp) so we had to
run it from a breaker and it locked up and let the smoke
out of it.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;">Just
another experience,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;">Bob
Ellison<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="4" color="black" face="Calibri"><span
style="font-size: 14pt; font-family:
"Calibri","sans-serif"; color: black;"><o:p> </o:p></span></font></p>
<div>
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<p class="MsoNormal"><b><font size="2" color="black"
face="Tahoma"><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext; font-weight: bold;">From:</span></font></b><font
size="2" color="black" face="Tahoma"><span
style="font-size: 10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;">
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b><span
style="font-weight: bold;">On Behalf Of </span></b>Roy
Butler<br>
<b><span style="font-weight: bold;">Sent:</span></b>
Thursday, October 20, 2011 5:33 PM<br>
<b><span style="font-weight: bold;">To:</span></b>
<a class="moz-txt-link-abbreviated" href="mailto:Allan@positiveenergysolar.com">Allan@positiveenergysolar.com</a>; RE-wrenches<br>
<b><span style="font-weight: bold;">Subject:</span></b>
Re: [RE-wrenches] Booster Pump/Slowpump information<o:p></o:p></span></font></p>
</div>
</div>
<p class="MsoNormal"><font size="3" color="black" face="Times
New Roman"><span style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="3" color="black" face="Times
New Roman"><span style="font-size: 12pt;">Thank you Allan,
this is really good information. I have about 35 of these
in the field at this time<br>
and I'll need this info soon, I'm sure!<br>
<br>
<o:p></o:p></span></font></p>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">Roy Butler<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">NABCEP Certified Small Wind Installer®<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">NABCEP Certified Solar PV Installer®<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">NYSERDA eligible PV & wind installer<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">Four Winds Renewable Energy, LLC<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">8902 Route 46<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">Arkport, NY 14807<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">607-324-9747<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;"><a moz-do-not-send="true" href="http://www.four-winds-energy.com">www.four-winds-energy.com</a><o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">Although no trees were killed in the sending of this message, <o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;">a large number of electrons were terribly inconvenienced.<o:p></o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;"><o:p> </o:p></span></font></pre>
<pre><font size="2" color="black" face="Courier New"><span style="font-size: 10pt;"> <o:p></o:p></span></font></pre>
<p class="MsoNormal"><font size="3" color="black" face="Times
New Roman"><span style="font-size: 12pt;"><br>
On 10/20/2011 4:10 PM, Allan Sindelar wrote: <o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="3" color="black" face="Times
New Roman"><span style="font-size: 12pt;">Wrenches:<br>
This information is important to those companies that have
customers with Dankoff/Flowlight Booster Pumps and
Slowpumps. These pumps use DC motors to drive rotary vane
positive displacement pump heads made by Procon. Windy
Dankoff developed these pumps about 30 years ago and I
think thousands have been sold. Other than the quirkiness
of their need for fine (10 micron) filtration on the
intake side, and the relative unreliability of the
optional dry run protection thermal snap switch, the pumps
are exceptionally well-made and long-lasting, in my
experience.<br>
<br>
Early (before around 1998) pumps were sold under the
"Flowlight" name; then under "Dankoff Solar Pumps" name
until Conergy bought Dankoff around 2004. The pumps had
Conergy's name on them until around two years ago, when
Conergy closed its sales and distribution of water
pumping, solar thermal, and wind products. Innovative
Solar bought the water pumping line and restored the
"Dankoff Pumps" name. Innovative Solar became Argand, and
changed their distribution model in order to not compete
with their dealers (attaboy!); Dankoff Pumps, while owned
by Argand, is wholesale only; new dealers must place a
minimum stocking order. The pumps continue to be
manufactured here in Santa Fe by the same folks that have
made and serviced them for years, and quality and support
remain high. <br>
<br>
Dankoff Pumps website is currently <a
moz-do-not-send="true"
href="http://www.Dankoff-Pumps.com">www.Dankoff-Pumps.com</a>.
Note the hyphen; <a moz-do-not-send="true"
href="http://www.Dankoffpumps.com">www.Dankoffpumps.com</a>
takes you to a (currently closed) online store, with
referral links to Dankoff Pumps for dealers who want to
become dealers. Dankoff Pumps will soon be either moving
to or adding <a moz-do-not-send="true"
href="http://www.DankoffSolarPumps.com">www.DankoffSolarPumps.com</a>
as well, I understand, but this hasn't happened yet.
Contact Dankoff Pumps at <a moz-do-not-send="true"
href="mailto:matt@dankoff-pumps.com">matt@dankoff-pumps.com</a>.<br>
<br>
The Procon heads wear out. New replacement heads are
available through Dankoff Pumps (and probably other
sources as well). However, the heads are rebuildable, and
the cost is much less than new. We always ask customers
for their old pump heads in exchange for new or rebuilt
ones. The rebuilder is Edco Service Center, 8220 Belvedere
Ave., Suite F, Sacramento, CA 95826; 916-454-1445. The
contact person there is Sandie, <a moz-do-not-send="true"
href="mailto:sandie@edcodistributing.com">sandie@edcodistributing.com</a>.<br>
<br>
Recently we learned some critical information related to
pump rebuilding: the heads may rebuilt in many
configurations, and it's essential to specify that the <b><span
style="font-weight: bold;">pump heads must be for
potable water applications</span></b>. This has to do
with the amount of lead in various internal components.
According to Sandie at Edco, you must specify a <b><span
style="font-weight: bold;">114E head</span></b>.
According to Matt at Dankoff Pumps, the full designation
is <b><span style="font-weight: bold;">114E240F11XX</span></b>
for the Booster Pump head and this should be specified in
full. All original Booster Pump and Slowpump heads were
acceptable for potable water; however, due to a mixup of
indeterminable cause, we were recently sent a set of 104
rebuilt heads, which aren't (according to the State of
California) suitable for potable applications due to lead
content. To their credit, Edco will re-rebuild these heads
to potable standards at no cost to us save shipping, but
this seemed to me to be a good opportunity to share this
information widely with other water pumping Wrenches.<br>
<br>
Allan<o:p></o:p></span></font></p>
<div>
<p class="MsoNormal"><font size="3" color="black" face="Times
New Roman"><span style="font-size: 12pt;">-- <br>
<b><span style="font-weight: bold;">Allan Sindelar</span></b><br>
</span></font><font size="2"><span style="font-size:
10pt;"><a moz-do-not-send="true"
href="mailto:Allan@positiveenergysolar.com"><font
color="#000099"><span style="color: rgb(0, 0, 153);">Allan@positiveenergysolar.com</span></font></a></span></font><br>
<font size="2"><span style="font-size: 10pt;">NABCEP
Certified Photovoltaic Installer<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
<b><span style="font-weight: bold;">Positive Energy,
Inc.</span></b><br>
3201 Calle Marie<br>
Santa Fe, New Mexico 87507<br>
<b><span style="font-weight: bold;">505 424-1112</span></b><br>
<a moz-do-not-send="true"
href="http://www.positiveenergysolar.com/"
target="_blank">www.positiveenergysolar.com</a></span></font>
<o:p></o:p></p>
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<br>
<br>
<o:p></o:p></span></font></p>
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