Re: [RE-wrenches] Geocel 2300
Nick, I am not familiar with the 2300 (and could not find it on their website), but I have been using their ProFlex product for some time and it seems pretty durable. I also appreciate the temperature range of this product. Davis Terrell Bright Earth Solar (802) 492-2273 / brightearthsolar.com Nick Soleil wrote: Aloha wrenches: Do you have experience with Geocel 2300? What do you think of using it for roofing penetrations and roof flashings? Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax: 707-769-9037 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] 600A 240V 3Phase 3Wire Panel Needed
Hello Wrenches, I am in need of the following 600A 22,000 AIC Main Lug Only Panel 240 V 3 Phase 3 wire I am having difficulty locating one in stock at an affordable price. Any suggestions on sourcing would be appreciated. Glen Burt, and John McNicholas, thanks for your previous suggestions on locating the meter. Thanks Carl SunRock Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Geocel 2300
Morning Nick, and all--- Best wishes for Peace on Earth , and congratulations for the role we all play in that ! When we were looking, back in the late 80's , for the best caulks for roof penetrations and the occasional crack repair in our EPS foam core covered with reinforced , latex modified, cement plaster, we used silicones , polyurethanes, and the tri and quad polymer caulks like geocel 2300, and OSI Quad. We like black silicone for roof penetrations in asplalt shingles--clear silicones , and tri-polymers, are not UV resistant, black lasts forever ,in our experience . Some folks teaching solar installation have had very negative experience with clear silicone, and we concur. No UV resistance ! Adhesion is not a strong point so be sure to place silicone in the hole and under the foot/ bracket/whatever. That also prevents UV exposure. Also be aware that there are different types of silicone, so do some research. The RTV is probably best. Years ago we got our caulks from C R Laurence Co, a major supplier to the glass trade. They had a great chart listing all the caulks they sold, and their appropriate applications. When we needed caulk for high expansion use , like crack repair , we tried polyurethane but found it to stiff --and messy--although it is certainly sticky and tough. We then switched to the multi-polymers , using Geocel and OSI Quad. We found the Geocel a bit to thin--may be different now-- but the OSI was just right. It is used and sold primarily for vinyl windows/ siding because it sticks tenaciously--even to polyethylene, which we used for 20 years for drainback SHW tanks. The tensile strength is affected by the presence of color agents--it comes in over 200 colors or so. Clear is incredibly strong, and extremely stretchy ! Lay out a bead, let it cure, and pull on it . It can be very difficult to remove from surfaces. Great for installing flashing to thermal collectors so removal for reroofing is not needed. It does takes a while to cure. The tri-polymers will dissolve EPS foam, and react with asphalt at the interface, leaving no bond, in our experience. But a little keresene or your trusty can of penetrating oil is great for cleanup. Caulk is a great tool, but selection of the appropriate type, and application techniques is crucial. Experimentation will be most useful. Take Care Ken Schaal CommonWealth Solar www.commonwealthsolar.com - Original Message - From: William Miller To: RE-wrenches Sent: Thursday, December 17, 2009 12:46 AM Subject: Re: [RE-wrenches] Geocel 2300 Nick: Read the fine print. Some of these sealants are not recommended on asphalt roofing products. William At 09:31 PM 12/16/2009, you wrote: Aloha wrenches: Do you have experience with Geocel 2300? What do you think of using it for roofing penetrations and roof flashings? Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax: 707-769-9037 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.716 / Virus Database: 270.14.111/2569 - Release Date: 12/16/09 11:52:00 Please note new e-mail address and domain: William Miller Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 -- ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] solar hot water nighttime recirc
Yes it is done, there are controllers that do this. For an effective design the system should be able to collect and store the day time energy with out getting to hot. Perhaps a larger tank is required in most cases. The nightime loss could be estimated by the length of time of heat dump multiplied by the temperature difference, and the loss coefficent Frul for the collector. Darryl --- On Thu, 12/17/09, Phil Undercuffler solarp...@gmail.com wrote: From: Phil Undercuffler solarp...@gmail.com Subject: Re: [RE-wrenches] solar hot water nighttime recirc To: npon...@buildingenergyus.com, RE-wrenches re-wrenches@lists.re-wrenches.org Date: Thursday, December 17, 2009, 12:20 AM Nighttime cooling is possible, it works, and there's some pretty good data being collected about it recently. The actual amount of energy that you can radiate out depends on many factors, including ambient nighttime air temperatures, the dew point in your area, and the emissivity of your collectors. I'd suggest you contact Boaz at Cedar Mountain Solar -- his team has been doing some pretty brilliant designs and research using this approach, both for collector cooling but more interestingly for cooling the living space. Phil Undercuffler Conergy On Wed, Dec 16, 2009 at 8:53 PM, Nicholas Ponzio npon...@buildingenergyus.com wrote: Apologies if this has already been discussed here. One heat diversion method I hear suggested often is recirculating through the collectors (flatplate) at night. Are there any data, calculations or anecdotal evidence on the effectiveness of this approach? That is, can I really radiate as much energy back to a dark sky as I collect during the day? Thanks for any feedback. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -Inline Attachment Follows- ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Fronius IG Plus line
I have yet to install a Fronius IG Plus inverter. Looking through the manual I'm trying to determine whether each inverter in the line, between 3 and 12 kW, puts out three-phase power across all three poles, L1, L2 and L3 or whether all or some of these models put out power across just one or two poles like the SMA Sunny Boys. I'd appreciate any education on this. Thanks, marco provision_highres_solar_logo2 with C-26351 Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile http://www.provisiontechnologies.com www.provision-solar.com image001.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Fronius IG Plus line
Marco, They are all single-phase, with the exception of the IG Plus 11.4-3 and 12.0-3, which are 3-phase units. David Brearley, Senior Technical Editor SolarPro magazine NABCEP Certified PV Installer david.brear...@solarprofessional.com Direct: 541.261.6545 Fax: 541.512.0343 Visit our Web site at solarprofessional.com (Sample copy available for download at: solarprofessional.com/sample) On 12/17/09 5:55 PM, Marco Mangelsdorf ma...@pvthawaii.com wrote: I have yet to install a Fronius IG Plus inverter. Looking through the manual I¹m trying to determine whether each inverter in the line, between 3 and 12 kW, puts out three-phase power across all three poles, L1, L2 and L3 or whether all or some of these models put out power across just one or two poles like the SMA Sunny Boys. I¹d appreciate any education on this. Thanks, marco Marco Mangelsdorf, President 69 Railroad Avenue, A-7 Hilo, Hawai'i 96720 (808) 969-3281, 934-7462 facsimile www.provision-solar.com http://www.provisiontechnologies.com ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org image.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] solar hot water nighttime recirc
Nicholas, You can certainly do that. Most newer controllers have a vacation function that will provide this. Another method is to put in a bypass to the check valve that you can open and the system will naturally reverse thermo siphon at night. Not much in the way of calculations other than the collectors reradiate as effectively as they collect. Conrad Cotuit Solar _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Nicholas Ponzio Sent: Wednesday, December 16, 2009 10:54 PM To: RE-wrenches Subject: [RE-wrenches] solar hot water nighttime recirc Apologies if this has already been discussed here. One heat diversion method I hear suggested often is recirculating through the collectors (flatplate) at night. Are there any data, calculations or anecdotal evidence on the effectiveness of this approach? That is, can I really radiate as much energy back to a dark sky as I collect during the day? Thanks for any feedback. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
