Dana....that is exactly the problem....because of the business model grundfos has chosen it makes more sense to have a pump guy install and sell the pump and we will install the solar....however....none of the local pump guys have any experience with the SQFlex pumps and have no idea how they operate.....so asking them has proven fruitless.....I have been to more grundfos sqflex trainings then them....and water pumping is a very small portion of our business... I think Grundfos made a stupid move by abandoning all their solar distribution..... Water pumping guys have no idea how to do solar so they are not pushing the sqflex pumps and now the solar guys are being restricted from selling sqflex pumps so the end result is grundfos shoots themselves in their own foot...... its a crazy world out there... Cheers, Kirpal Khalsa
On Wed, Apr 6, 2011 at 2:03 PM, Dana <d...@solarwork.com> wrote: > No tech support – This is why they have stopped selling to almost everyone > but pump installers and AEE. > > I have lost all other suppliers on the GF Sq flex. > > T/G that at least AEE sells this item still. > > > > Can AEE help? Or whomever sold it to you? > > > > Dana Orzel > > Great Solar Works, Inc > > E - d...@solarwork.com > > V - 970.626.5253 > > F - 970.626.4140 > > C - 970.209.4076 > > web - www.solarwork.com > > > > "Responsible Technologies for Responsible People since 1988" > > Do not ever believe anything, but seriously trust through action. > > > > *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: > re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Kirpal Khalsa > *Sent:* Wednesday, April 06, 2011 2:55 PM > *To:* RE-wrenches > *Subject:* [RE-wrenches] Grundfos SQ Flex > > > > Hi all....so I have a pumping project using a grundfos SQ Flex pump....It > will operate on the grid when grid is present and then switch back to solar > ready if the grid power should fail.....here is the set up... > 5-Sanyo HIT 220's Vmp non temp adjusted is 213VDC > Pump is SQFlex 16 SQF-10 will have CU 200 controller and IO101 AC input > box.... > > System has a pressure tank and pressure switch which will be used instead > of float switch as there is no storage tank at or above ground level.... > This system is a retrofit project to an existing well pumping system...... > Here is my questions: > 1. Pump and CU 200 controller are rated for upto 300VDC but IO 101 > Controller is only rated for 225VDC.....is that open circuit or max power on > the modules.... > 2. The Grundfos wiring diagrams only show 2 wires and a ground leaving the > IO101 going to the CU200.....What is happening when there is 240VAC > supplying the system and what happens when it switches back to DC how is the > power transmitted on those wires? What happens to the second leg of the > 240VAC generator/grid input? > 3. Has anyone done one of these Grundos SQFlex back up water pumping > systems connected to a pressure tank and did it operate as expected? > Grundfos does not offer tech support.......that is kind of a bummer.... > Thanks for any advice or help.... > > > -- > Sunny Regards, > Kirpal Khalsa > NABCEP Certified Solar PV Installer > Renewable Energy Systems > www.oregonsolarworks.com > 541-218-0201 m > 541-592-3958 o > > _______________________________________________ > 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 > > > -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 m 541-592-3958 o
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