<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">
Allan,<div><br></div><div>We used a Solar Converters DC/DC converter on a similar system (48v) at a vacation cabin. The owner turns off the breaker in the power shed to reduce phantom loads from the converter when he's gone, and the frig is left turned off. We ran 48v to the frig and installed the converter on top of the frig. This eliminates 12v line lose from the power shed. Works great.</div><div><br></div><div>take care,</div><div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">Randy Brooks</font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">Brooks Solar, Inc.</font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; "><b><i>Solar Power for People</i></b></font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">140 Columbia View</font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">Chelan, WA<span class="Apple-converted-space"> <span class="Apple-converted-space"> </span></span>98816</font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">509-682-9646</font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; "><a href="mailto:Randy@BrooksSolar.com">Randy@BrooksSolar.com</a></font></p><p style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Times New Roman" size="3" style="font: normal normal normal 12px/normal 'Times New Roman'; ">www.BrooksSolar.com</font></p></span> </div><br><div><div>On Oct 6, 2009, at 10:04 PM, Allan Sindelar wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"> <div class="Section1"><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Wrenches,<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Simple question, I know: what has worked well as a 24V – 12V DC-DC step-down converter for a Sun Frost? I am doing a design to completely rebuild/replace an early-90s off-grid 12V system with a new system at 24V. The only DC load is a Sun Frost. I think it’s an RF16, so dual-compressor. I know of at least three converters: Solar Converters; BZ Products; ICT; and I’m sure there are many more. What has worked well, with minimal ghost load? <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Thank you, <o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif""><o:p> </o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Allan Sindelar<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif""><a href="mailto:Allan@positiveenergysolar.com"><span style="color:blue">Allan@positiveenergysolar.com</span></a></span><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">NABCEP Certified Photovoltaic Installer</span><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">EE98J Journeyman Electrician</span><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p><p class="MsoNormal"><b><span style="font-family:"Times New Roman","serif"">Positive Energy, Inc.<o:p></o:p></span></b></p><p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">3201 Calle Marie<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">Santa Fe, New Mexico 87507<o:p></o:p></span></p><p class="MsoNormal"><span style="font-family:"Times New Roman","serif"">505 424-1112<o:p></o:p></span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif""><a href="http://www.positiveenergysolar.com/"><span style="color:blue">www.PositiveEnergySolar.com</span></a></span><span style="font-family:"Times New Roman","serif""><o:p></o:p></span></p><p class="MsoNormal"><o:p> </o:p></p> </div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">_______________________________________________</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">List sponsored by Home Power magazine</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">List Address: <a href="mailto:RE-wrenches@lists.re-wrenches.org">RE-wrenches@lists.re-wrenches.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Options & settings:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><a href="http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">List-Archive: <a href="http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org">http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org</a></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">List rules & etiquette:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">www.re-wrenches.org/etiquette.htm</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Check out participant bios:</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">www.members.re-wrenches.org</div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div> </blockquote></div><br></div></body></html>