Re: [RE-wrenches] Low slope membrane roof attachment
Don, Thanks for the pointer to SNapNRack. We like their racking for residential systems, but have not used the 4 hole standoff kit. So on a white membrane roof what is used to seal the roof cone flashing to the membrane, and what is the height of the roof cone flashing. It seems the cone height will determine the minimum standoff shaft height. You mentioned you don't use the other hardware. Are just attaching an LFoot to the top of the post? With Regards Carl Adams NABCEP 031508-1 SunRock Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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] Microinverters with S-5-PV
Does anyone see a problem (NEC/UL/physical) with mounting microinverters to S-5 Mini clamps and mounting PV on S-5-PV Kits? The trunk cable could be supported with clips on the module frames. Wire management could become a bit difficult, but doable. This would be a pretty cost effective mounting method compared to rail mounting, I think. The micro would not have much of a base to sit upon, but maybe a fender washer between the clamp and the microinverter would be fine. Has anyone done this? Obviously AC modules work great in this scenario, but that's not always what the customer wants... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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] Low slope membrane roof attachment
Carl, In my experience, roofers in our area insist that a manufacturer approved flashing be used on posts, and for the popular Firestone TPO that means an 8 flashing on small diameter posts. Some roofers have been known to fabricate custom flashings that are lower, but I'm not sure how that affects warranty. I've seen others with the boot squashed down, but that pools up water in the boot. http://www.firestonebpe.com/en/roofing/ultraply-tpo/products/ultraply-tpo-accessories/flashings Jason Szumlanski On Tue, Nov 26, 2013 at 12:05 PM, Carl Adams swingjun...@gmail.com wrote: Don, Thanks for the pointer to SNapNRack. We like their racking for residential systems, but have not used the 4 hole standoff kit. So on a white membrane roof what is used to seal the roof cone flashing to the membrane, and what is the height of the roof cone flashing. It seems the cone height will determine the minimum standoff shaft height. You mentioned you don't use the other hardware. Are just attaching an LFoot to the top of the post? With Regards Carl Adams NABCEP 031508-1 SunRock Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 Change email address 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] Microinverters with S-5-PV
Hi Jason, Using the S-5 mini clamps does work with our microinverters, but you do want to keep the microinverters off the roof. Enphase recommends (in our manual) a 3/4 distance off the roof. The microinverter can cause the seems to bend over, and inspectors may take issue if the microinverters get too close to the roof. If you use a taller S5 clamp, then the microinverter can run downhill, parallel to the seems. In that case, the microinverter will sit on the seem, which we support 100%. Another issue is wire management, which you brought up already. Clipping the cable to the module frames is a good practice. An additional fender washer is not required below the microinverter. On Tue, Nov 26, 2013 at 9:12 AM, Jason Szumlanski ja...@fafcosolar.comwrote: Does anyone see a problem (NEC/UL/physical) with mounting microinverters to S-5 Mini clamps and mounting PV on S-5-PV Kits? The trunk cable could be supported with clips on the module frames. Wire management could become a bit difficult, but doable. This would be a pretty cost effective mounting method compared to rail mounting, I think. The micro would not have much of a base to sit upon, but maybe a fender washer between the clamp and the microinverter would be fine. Has anyone done this? Obviously AC modules work great in this scenario, but that's not always what the customer wants... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 -- Cordially, *Nick Soleil* *Field Applications Engineer* *Enphase Energy* Mobile: (707) 321-2937 *Enphase Commercial Solar.* *Limitless.*http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 1420 North McDowell Petaluma, CA 94954 www.enphase.com http://www.enphaseenergy.com/ P: (707) 763-4784 x7267 F: (707) 763-0784 E: nsol...@enphaseenergy.com [image: nabcep logo] Certified Solar PV Installer #03262011-300 “Don’t get me wrong: I love nuclear energy! It’s just that I prefer fusion to fission. And it just so happens that there’s an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it’s wireless! .” - William McDonough This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. image002.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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] Microinverters with S-5-PV
Speaking of wire management with Enphase, has anyone gone through the effort and expense of cutting module DC leads and installing new MC4 connectors on wires that are just long enough? I'm assuming this voids module warranties, but I've never looked close enough to confirm. Jason Szumlanski Fafco Solar On Tue, Nov 26, 2013 at 1:22 PM, Nick Soleil nsol...@enphaseenergy.comwrote: Hi Jason, Using the S-5 mini clamps does work with our microinverters, but you do want to keep the microinverters off the roof. Enphase recommends (in our manual) a 3/4 distance off the roof. The microinverter can cause the seems to bend over, and inspectors may take issue if the microinverters get too close to the roof. If you use a taller S5 clamp, then the microinverter can run downhill, parallel to the seems. In that case, the microinverter will sit on the seem, which we support 100%. Another issue is wire management, which you brought up already. Clipping the cable to the module frames is a good practice. An additional fender washer is not required below the microinverter. On Tue, Nov 26, 2013 at 9:12 AM, Jason Szumlanski ja...@fafcosolar.comwrote: Does anyone see a problem (NEC/UL/physical) with mounting microinverters to S-5 Mini clamps and mounting PV on S-5-PV Kits? The trunk cable could be supported with clips on the module frames. Wire management could become a bit difficult, but doable. This would be a pretty cost effective mounting method compared to rail mounting, I think. The micro would not have much of a base to sit upon, but maybe a fender washer between the clamp and the microinverter would be fine. Has anyone done this? Obviously AC modules work great in this scenario, but that's not always what the customer wants... Jason Szumlanski Fafco Solar ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 -- Cordially, *Nick Soleil* *Field Applications Engineer* *Enphase Energy* Mobile: (707) 321-2937 *Enphase Commercial Solar.* *Limitless.*http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 http://www.enphase.com/commercial?utm_source=emailutm_medium=sigutm_campaign=Comm2012 1420 North McDowell Petaluma, CA 94954 www.enphase.com http://www.enphaseenergy.com/ P: (707) 763-4784 x7267 F: (707) 763-0784 E: nsol...@enphaseenergy.com [image: nabcep logo] Certified Solar PV Installer #03262011-300 “Don’t get me wrong: I love nuclear energy! It’s just that I prefer fusion to fission. And it just so happens that there’s an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it’s wireless! .” - William McDonough This email message is for the sole use of the intended recipient(s) and may contain confidential and/or privileged information. If you are not an intended recipient, you may not review, use, copy, disclose or distribute this message. If you received this message in error, please contact the sender by reply email and destroy all copies of the original message. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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 image002.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address 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
