Re: [RE-wrenches] Slow clocks
Todd, Come on now! Times have changed. People expect more from their systems now, and lower module costs make that possible. It's not the electric clocks per se - it's everything else that we come to want on all the time, that happens to also have a clock in it. I don't know anyone any more with a modern system whose inverter ever goes into sleep mode. With three teenagers who have grown up in the digital age, rural wireless, all the electronics, my off-grid home has about an 80W continuous tare load. Maybe ten years ago (kids were small), we had no tare in the winter, but even then it never went to sleep. And we let all or most of the phantom loads stay on during the rest of the year when we have an excess of PV energy. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/4/2011 8:46 PM, toddc...@finestplanet.com wrote: I wasn't going to say anything, but electric clocks off-grid? really??? Todd On Monday, April 4, 2011 6:20pm, "Kent Osterberg" k...@coveoregon.com said: Kris, Even with generators using an electronic governor, the frequency changes with load. Also while inverters are stable their frequency is not as accurate as utility power. Clocks that use the ac frequency as the time standard will not work reliably when powered with off-grid power. Such should be disclosed in any contract to install an off-grid power system. Kent Osterberg Blue Mountain Solar Kristopher Schmid wrote: I have an off-grid client who tells me that his clocks lose about 1 minute per hour while he is running his backup generator. Has anyone seen this before? Do clocks use the zero crossing on a 60Hz wave for keeping time and could a frequency discrepency in the generator cause this? My thanks to the brain trust... Kris Legacy Solar, LLC 864 Clam Falls Trail Frederic, WI 54837 715-653-4295 sol...@legacysolar.com www.legacysolar.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 ___ 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 Sent from Finest Planet WebMail. ___ 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] Slow clocks
Allan, Same here, some parasitic loads are necessary- answering and fax machines need to stay on. I want to add my off grid clock experience to the mix. When I went off grid in 1997, I switched all my clocks to battery units. I love 'em! Wall clocks, desk clocks and best of all, my alarm clock that runs for almost 4 years on 1 battery! The other clock batteries go for 2+ years, can't beat that. Oh, I should mention my 1887 Seth Thomas double wind/ 28 day schoolhouse clock. Best one of all, although the bio interface used for winding the clock doesn't always work as it should ;-) It's not a clock problem when I don't get somewhere on time. Roy Butler NABCEP Certified Solar PV Installer® NYSERDA eligible PV wind installer PA Sunshine Program Approved PV Installer Four Winds Renewable Energy, LLC 8902 Route 46 Arkport, NY 14807 607-324-9747 www.four-winds-energy.com Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 4/6/2011 10:09 AM, Allan Sindelar wrote: Todd, Come on now! Times have changed. People expect more from their systems now, and lower module costs make that possible. It's not the electric clocks per se - it's everything else that we come to want on all the time, that happens to also have a clock in it. I don't know anyone any more with a modern system whose inverter ever goes into sleep mode. With three teenagers who have grown up in the digital age, rural wireless, all the electronics, my off-grid home has about an 80W continuous tare load. Maybe ten years ago (kids were small), we had no tare in the winter, but even then it never went to sleep. And we let all or most of the phantom loads stay on during the rest of the year when we have an excess of PV energy. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/4/2011 8:46 PM, toddc...@finestplanet.com wrote: I wasn't going to say anything, but electric clocks off-grid? really??? Todd On Monday, April 4, 2011 6:20pm, "Kent Osterberg" k...@coveoregon.com said: Kris, Even with generators using an electronic governor, the frequency changes with load. Also while inverters are stable their frequency is not as accurate as utility power. Clocks that use the ac frequency as the time standard will not work reliably when powered with off-grid power. Such should be disclosed in any contract to install an off-grid power system. Kent Osterberg Blue Mountain Solar Kristopher Schmid wrote: I have an off-grid client who tells me that his clocks lose about 1 minute per hour while he is running his backup generator. Has anyone seen this before? Do clocks use the zero crossing on a 60Hz wave for keeping time and could a frequency discrepency in the generator cause this? My thanks to the brain trust... Kris Legacy Solar, LLC 864 Clam Falls Trail Frederic, WI 54837 715-653-4295 sol...@legacysolar.com www.legacysolar.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 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options settings:
Re: [RE-wrenches] portable freezers
Hi Nick, Did you ever come across any watt hrs per day info on say the Edgestar portable cooler ? Just got off the phone with Edgestar and they didn't have that info, nor were they of any help at all in determining that. Carl, On 4/1/2011 10:39 PM, Nick Vida wrote: Hi Dan, I am talking about the ice chest looking ones that run on AC or DC electric. There are a bunch of brands with pretty similar design. I have no idea if any of them are any good. Have you used them? EdgeStar? thanks, nick ___ 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] Slow clocks
The days of just using a battery powered clock in an off grid home are over. But I only have a few customers who actually have the capability of using sleep mode in the inverter any more. Want to watch an electric clock misbehave? Plug it into a modified square wave inverter. You can almost use it as a fan! Good night, Bob Ellison From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Monday, April 04, 2011 11:06 PM To: RE-wrenches Subject: Re: [RE-wrenches] Slow clocks Todd: I guess your off-grid clients don't have commitments, but my clients sometimes have places to go and deadlines to meet. Your point? William Miller At 07:46 PM 4/4/2011, toddc...@finestplanet.com wrote: I wasn't going to say anything, but electric clocks off-grid? really??? Todd ___ 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] Grundfos SQ Flex
Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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
Re: [RE-wrenches] Grundfos SQ Flex
Kirpal, Although I can't answer your IO101 question, I can tell you that the SQ Flex operates nicely for us when used with a pressure tank/ pressure switch. As long as the pump and PV power source are sized to accommodate the additional vertical lift caused by the tank pressure, all is good. As for the 2 current carrying conductors, that still fascinates me. When using 240 AC, the 2 phase wires from the grid are attached to the blue and brown wires from the pump. When switched over to the array, the DC positive and negative are attached to the same brown and blue wires but the polarity doesn't matter. It's all taken care of by the electronics in the pump. Takes a while to get used to that. And have you seen the documentation that comes with the pump and CU200? I'm embarrassed to include them in the customer's document package...they're all pictures and no textsigh Roy Butler NABCEP Certified Solar PV Installer NYSERDA eligible PV wind installer PA Sunshine Program Approved PV Installer Four Winds Renewable Energy, LLC 8902 Route 46 Arkport, NY 14807 607-324-9747 www.four-winds-energy.com Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 4/6/2011 4:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ 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] Grundfos SQ Flex
Kirpal, I have several of these units operating with pressure tanks with no problems there. Glad to see the pressure swich being used as disconnect. We have had multiple installs where the CU200 command to stop pumping was ignored by the pump and pressure relief protection saved the day. The DC will burn the points off the pressure switch in short order if it is not DC rated. Square D makes a line of heavy duty switches with this capability. I have an idea of what happens on the current carrying wires during the switch from AC to DC but will let someone who knows for sure educate me also. If you have problems finding the pressure switch, should you need one let me know. I've got the series numbers with all the range of pressure set points back at the office. Nathan Jones Power Source Solar 417 827 0738 On Wed Apr 6th, 2011 3:55 PM CDT Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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
Re: [RE-wrenches] Grundfos SQ Flex
Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ 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] Grundfos SQ Flex
As I understand the 2 wire at 240VAC is the neutral is handled through the ground well water. I have always questioned this as it would make the ground current carrying have never gotten a good answer. Some wrench enlighten us on this, please. 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 Roy Butler Sent: Wednesday, April 06, 2011 3:07 PM To: RE-wrenches Subject: Re: [RE-wrenches] Grundfos SQ Flex Kirpal, Although I can't answer your IO101 question, I can tell you that the SQ Flex operates nicely for us when used with a pressure tank/ pressure switch. As long as the pump and PV power source are sized to accommodate the additional vertical lift caused by the tank pressure, all is good. As for the 2 current carrying conductors, that still fascinates me. When using 240 AC, the 2 phase wires from the grid are attached to the blue and brown wires from the pump. When switched over to the array, the DC positive and negative are attached to the same brown and blue wires but the polarity doesn't matter. It's all taken care of by the electronics in the pump. Takes a while to get used to that. And have you seen the documentation that comes with the pump and CU200? I'm embarrassed to include them in the customer's document package...they're all pictures and no textsigh Roy Butler NABCEP Certified Solar PV InstallerR NYSERDA eligible PV wind installer PA Sunshine Program Approved PV Installer Four Winds Renewable Energy, LLC 8902 Route 46 Arkport, NY 14807 607-324-9747 www.four-winds-energy.com Although no trees were killed in the sending of this message, a large number of electrons were terribly inconvenienced. On 4/6/2011 4:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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-wren ches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrench es.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] Grundfos SQ Flex
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 allso I have a pumping project using a grundfos SQ Flex pumpIt 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
Re: [RE-wrenches] Grundfos SQ Flex
Danathat is exactly the problembecause 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 solarhowevernone 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 themand 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 allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ 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] Grundfos SQ Flex
Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring drawings it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan *Allan Sindelar* *al...@positiveenergysolar.com* al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician *Positive Energy, Inc.* 3201 Calle Marie Santa Fe, New Mexico 87507 *505 424-1112* *www.positiveenergysolar.com* http://www.positiveenergysolar.com/ * * On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ 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 ___ 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] Grundfos SQ Flex
Kirpal, I have never tried to feed 240V to an IO101, so I don't know the answer. But as the pump takes a maximum of only 950-1100 watts (approximate here, from memory). The usual reason for adding an IO101 is to allow a portable generator to back up a PV array during cloudy weather or a broken pipe, and the most portable generators are the little 1kW or 2kW inverter-generators, and the supplied AC pigtail is 15A 120V, so that's all I have ever tried. Sorry. You may have to look at a unit directly. I seem to recall it contains an Allen-Bradley AC contactor, and you can check the specs on the contactor directly. Sat nam. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 5:08 PM, Kirpal Khalsa wrote: Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring "drawings" it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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
Re: [RE-wrenches] Grundfos SQ Flex
Kirpal, I got the other side of the story from some Grundfos folks at last fall's SPI and it made sense. The internet PV sellers were all carrying the SQFlex at discounted prices and selling the pumps to anyone with a valid credit card. As we all know, most internet sales reps haven't got a clue about what their products and provided no tech support to their customers. Water pumping is very application-specific, and selecting the right pump takes knowledge and experience. So the end-users would call Grundfos and get their tech support folks (there used to be tech support), who couldn't help them (because they didn't know enough to begin with) or who helped them determine that they had been sold the wrong pump for the application. It became a mess. So Grundfos US changed their distribution model in order to cut out the RE distributors and retailers who were selling to anyone, and instead made them available only through their established pump distributors. To me, that makes a lot of sense, although there's no ideal solution for our industry. For us here, it works - we have a well-established conventional pump distributor in NM, with support when we need it. We sell and install the pumps - hand method only - or spec the model and have the well driller or conventional pump company sell and install the pump - machine method only - and carry the warranty. Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 4:53 PM, Kirpal Khalsa wrote: Danathat is exactly the problembecause 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 solarhowevernone 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 themand 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 allso I have a pumping project using a grundfos SQ Flex pumpIt 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
[RE-wrenches] Sunny boy 1800
Wrenches, I've been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. I need to watch the lights on the inverter to find the problem, but I'm not there now and I can't get this off my mind, so I will ask the esteemed members of this list. When it's cloudy, the inverter comes on and loads the array. I can watch the sunny keeper watts reading rise until it get around 1000w and full sun hits the array. Once full sun hits the array, the inverter drops out. It did it three times to me today, and the inverter will not come on during full sun. Grid volts and hz are okay durning this. I know it's impossible to troubleshoot like this, but anyone deal with problems like this? Thanks for the help! Jesse Dahl Sent from my iPad!!! ___ 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] Grundfos SQ Flex
Allan, I seem to recall the SQ Flex pumps will run on 90VAC to 240VAC. I had several lengthy talks with the engineers in the KS. City office re. the failure to stop on command situation. While they were helpful with some aspects they completely denied the situation we were experiencing existed or could exist. This despite the fact that I had stood there and witnessed the event happening real time. They wanted me to take a picture of the controller with the pump running and send it to them?? We finally opted for a pressure switch to actually break the current to the pump as the CU200 stop command was being ignored by the pump. I don't think I know of any of the installs around here actually seeing the 240AC though but I think it was one of the engineers there who I discussed it with. Nathan Jones Power Source Solar From: Allan Sindelar al...@positiveenergysolar.com To: Kirpal Khalsa solarwo...@gmail.com Cc: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wed, April 6, 2011 6:28:35 PM Subject: Re: [RE-wrenches] Grundfos SQ Flex Kirpal, I have never tried to feed 240V to an IO101, so I don't know the answer. But as the pump takes a maximum of only 950-1100 watts (approximate here, from memory). The usual reason for adding an IO101 is to allow a portable generator to back up a PV array during cloudy weather or a broken pipe, and the most portable generators are the little 1kW or 2kW inverter-generators, and the supplied AC pigtail is 15A 120V, so that's all I have ever tried. Sorry. You may have to look at a unit directly. I seem to recall it contains an Allen-Bradley AC contactor, and you can check the specs on the contactor directly. Sat nam. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 5:08 PM, Kirpal Khalsa wrote: Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring drawings it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ List sponsored by Home Power magazine List Address:
Re: [RE-wrenches] Sunny boy 1800
Jesse, I sent you a copy of the manual at 2:46 pm today. Also if you need technical support we are available 6am - 5pm Pacific time. Give us a call and we will get your problem resolved ASAP. Thanks SMA America, LLC Steve Jefferson Sr. Technical Service Specialist, Sunny Family Service Line +1 877 697 6283 (Toll Free) Email: steve.jeffer...@sma-america.com -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jesse Dahl Sent: Wednesday, April 06, 2011 4:41 PM To: RE-wrenches Subject: [RE-wrenches] Sunny boy 1800 Wrenches, I've been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. I need to watch the lights on the inverter to find the problem, but I'm not there now and I can't get this off my mind, so I will ask the esteemed members of this list. When it's cloudy, the inverter comes on and loads the array. I can watch the sunny keeper watts reading rise until it get around 1000w and full sun hits the array. Once full sun hits the array, the inverter drops out. It did it three times to me today, and the inverter will not come on during full sun. Grid volts and hz are okay durning this. I know it's impossible to troubleshoot like this, but anyone deal with problems like this? Thanks for the help! Jesse Dahl Sent from my iPad!!! ___ 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] Sunny boy 1800
Jesse - Did you happen to measure the array voltage when the problem was occurring? I ran into a sort of similar issue to this where the string voltage was just a little too low and once the panels warmed up they would drop out of MPP range. Just a thought. Any idea what the string configuration is? Also, this might be a link to your manual, good 'ole Google: http://www.kyocerasolar.com/pdf/specsheets/sb1800_owner.pdf And the spec sheet: http://152.1.103.103/GRIDc/components/SunnyBoy1800spec.pdf -August On Wed, Apr 6, 2011 at 4:41 PM, Jesse Dahl dahlso...@gmail.com wrote: Wrenches, I've been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. I need to watch the lights on the inverter to find the problem, but I'm not there now and I can't get this off my mind, so I will ask the esteemed members of this list. When it's cloudy, the inverter comes on and loads the array. I can watch the sunny keeper watts reading rise until it get around 1000w and full sun hits the array. Once full sun hits the array, the inverter drops out. It did it three times to me today, and the inverter will not come on during full sun. Grid volts and hz are okay durning this. I know it's impossible to troubleshoot like this, but anyone deal with problems like this? Thanks for the help! Jesse Dahl Sent from my iPad!!! ___ 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 -- August Goers Luminalt Energy Corporation 1320 Potrero Avenue San Francisco, CA 94110 O: 415.641.4000 M: 415.559.1525 aug...@luminalt.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
Re: [RE-wrenches] Sunny boy 1800
I agree this is the place to start. Can you get the subarray/array configuration? It will either confirm or eliminate that the configuration is the problem.Chris --- Original Message --- On 4/6/2011 11:55 PM August Goers wrote:Jesse -Did you happen to measure the array voltage when the problem was�occurring? I ran into a sort of similar issue to this where the string voltage was just a little too low and once the panels warmed up they would drop out of MPP range. Just a thought. Any idea what the string configuration is? Also, this might be a link to your manual, good ole Google:�http://www.kyocerasolar.com/pdf/specsheets/sb1800_owner.pdf And the spec sheet:�http://152.1.103.103/GRIDc/components/SunnyBoy1800spec. pdf�-August On Wed, Apr 6, 2011 at 4:41 PM, Jesse Dahl dahlso...@gmail.com wrote: Wrenches, Ive been working on a sunny boy 1800 with some problems. There is no manual and SMA website does not have it available. �I need to watch the lights on the inverter to find the problem, but Im not there now and I cant get this off my mind, so I will ask the esteemed members of this list. When its cloudy, the inverter comes on and loads the array. I can watch the sunny keeper watts reading rise until it get around 1000w and full sun hits the array. �Once full sun hits the array, the inverter drops out. �It did it three times to me today, and the inverter will not come on during full sun. Grid volts and hz are okay durning this. I know its impossible to troubleshoot like this, but anyone deal with problems like this? Thanks for the help! Jesse Dahl Sent from my iPad!!! ___ 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 -- August GoersLuminalt Energy C orporation1320 Potrero AvenueSan Francisco, CA 94110O: 415.641.4000M: 415.559.1525aug...@luminalt.com Christopher Warfel, ENTECH Engineering, Inc. PO Box 871, Block Island, RI 02807, 401-466-8978 (v)(f) ___ 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] Grundfos SQ Flex
Nathan, My understanding is that the pumps will run on 90-300VAC and 30-300VDC, but they're happiest around 90-120V AC or DC. But all of the discussion so far is about the IO101 AC interface, not the pump. About the failure-to-stop issue I have no experience. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 5:48 PM, Nathan Jones wrote: Allan, I seem to recall the SQ Flex pumps will run on 90VAC to 240VAC. I had several lengthy talks with the engineers in the KS. City office re. the failure to stop on command situation. While they were helpful with some aspects they completely denied the situation we were experiencing existed or could exist. This despite the fact that I had stood there and witnessed the event happening real time. They wanted me to take a picture of the controller with the pump running and send it to them?? We finally opted for a pressure switch to actually break the current to the pump as the CU200 stop command was being ignored by the pump. I don't think I know of any of the installs around here actually seeing the 240AC though but I think it was one of the engineers there who I discussed it with. Nathan Jones Power Source Solar From: Allan Sindelar al...@positiveenergysolar.com To: Kirpal Khalsa solarwo...@gmail.com Cc: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wed, April 6, 2011 6:28:35 PM Subject: Re: [RE-wrenches] Grundfos SQ Flex Kirpal, I have never tried to feed 240V to an IO101, so I don't know the answer. But as the pump takes a maximum of only 950-1100 watts (approximate here, from memory). The usual reason for adding an IO101 is to allow a portable generator to back up a PV array during cloudy weather or a broken pipe, and the most portable generators are the little 1kW or 2kW inverter-generators, and the supplied AC pigtail is 15A 120V, so that's all I have ever tried. Sorry. You may have to look at a unit directly. I seem to recall it contains an Allen-Bradley AC contactor, and you can check the specs on the contactor directly. Sat nam. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 5:08 PM, Kirpal Khalsa wrote: Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring "drawings" it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201
Re: [RE-wrenches] Grundfos SQ Flex
Hi Nathan, The SQ Flex will take AC or DC voltage. I suspect your issue is with the CU200 which have a lot of failures. jay peltz power On Apr 6, 2011, at 4:48 PM, Nathan Jones wrote: Allan, I seem to recall the SQ Flex pumps will run on 90VAC to 240VAC. I had several lengthy talks with the engineers in the KS. City office re. the failure to stop on command situation. While they were helpful with some aspects they completely denied the situation we were experiencing existed or could exist. This despite the fact that I had stood there and witnessed the event happening real time. They wanted me to take a picture of the controller with the pump running and send it to them?? We finally opted for a pressure switch to actually break the current to the pump as the CU200 stop command was being ignored by the pump. I don't think I know of any of the installs around here actually seeing the 240AC though but I think it was one of the engineers there who I discussed it with. Nathan Jones Power Source Solar From: Allan Sindelar al...@positiveenergysolar.com To: Kirpal Khalsa solarwo...@gmail.com Cc: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Wed, April 6, 2011 6:28:35 PM Subject: Re: [RE-wrenches] Grundfos SQ Flex Kirpal, I have never tried to feed 240V to an IO101, so I don't know the answer. But as the pump takes a maximum of only 950-1100 watts (approximate here, from memory). The usual reason for adding an IO101 is to allow a portable generator to back up a PV array during cloudy weather or a broken pipe, and the most portable generators are the little 1kW or 2kW inverter-generators, and the supplied AC pigtail is 15A 120V, so that's all I have ever tried. Sorry. You may have to look at a unit directly. I seem to recall it contains an Allen-Bradley AC contactor, and you can check the specs on the contactor directly. Sat nam. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 5:08 PM, Kirpal Khalsa wrote: Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring drawings it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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:
[RE-wrenches] portable freezers
Hi Carl, No I dont have that data, but I might be getting one for an efficient/ compact kitchen design here later this month, and that will be a major curiosity. Inside dimension v. outside dimension looks like they did quite a bit of insulation, and that general design of opening up is good for retaining cold, so I have some pretty decent expectations for that 80 watts going pretty far. So far as the compressor they use, who knows! * Model: FP860 * Operates as a portable freezer or refrigerator * Volume: 86 qt. / equivalent to 120 12oz. cans * Easy to read, easy to use control panel * Range: -8ºF to 50ºF * Voltage power (AC or DC) * 12/24 volt power lead: 6' detachable power cord * 115 volt power lead 8' detachable power cord * Flash Freeze function rapidly cools the unit to -8ºF * Warranty: 90 days labor, 1 year parts * EdgeStar Portable Fridge/Freezer - 86 Qt. * Durable and rugged design * Floor drain * Insulated lid * Rounded edges make it safe around the family * Side-grip comfort handles for easy transport * Compressor based cooling method freezes faster than Thermoelectric counterparts * Approval: ETL * AC power: 80W / 115V / 1A * Weight: 71 pounds * Inside Dimensions: 14.96h x 15.75w x 20.7d * Outside Dimensions: 20.9h x 28.7w x 23.63d ___ 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] Grundfos SQ Flex
All, In a 240V mode, you have 2 hots, no neutral, and a ground. Current flows from hot to hot, no current flows on the ground (unless there is a problem). You could easily use the same two wires with the D.C. feed (positive and negative), and the ground wire does the same thing. I have also seen multiple failures of the Grundfos control boxes, and low water sensor. Mike Nelson MD Electric Solar, Inc. Gualala Ca. On Wed, Apr 6, 2011 at 5:58 PM, jay peltz j...@asis.com wrote: Hi Nathan, The SQ Flex will take AC or DC voltage. I suspect your issue is with the CU200 which have a lot of failures. jay peltz power On Apr 6, 2011, at 4:48 PM, Nathan Jones wrote: Allan, I seem to recall the SQ Flex pumps will run on 90VAC to 240VAC. I had several lengthy talks with the engineers in the KS. City office re. the failure to stop on command situation. While they were helpful with some aspects they completely denied the situation we were experiencing existed or could exist. This despite the fact that I had stood there and witnessed the event happening real time. They wanted me to take a picture of the controller with the pump running and send it to them?? We finally opted for a pressure switch to actually break the current to the pump as the CU200 stop command was being ignored by the pump. I don't think I know of any of the installs around here actually seeing the 240AC though but I think it was one of the engineers there who I discussed it with. Nathan Jones Power Source Solar -- *From:* Allan Sindelar al...@positiveenergysolar.com *To:* Kirpal Khalsa solarwo...@gmail.com *Cc:* RE-wrenches re-wrenches@lists.re-wrenches.org *Sent:* Wed, April 6, 2011 6:28:35 PM *Subject:* Re: [RE-wrenches] Grundfos SQ Flex Kirpal, I have never tried to feed 240V to an IO101, so I don't know the answer. But as the pump takes a maximum of only 950-1100 watts (approximate here, from memory). The usual reason for adding an IO101 is to allow a portable generator to back up a PV array during cloudy weather or a broken pipe, and the most portable generators are the little 1kW or 2kW inverter-generators, and the supplied AC pigtail is 15A 120V, so that's all I have ever tried. Sorry. You may have to look at a unit directly. I seem to recall it contains an Allen-Bradley AC contactor, and you can check the specs on the contactor directly. Sat nam. Allan *Allan Sindelar* *al...@positiveenergysolar.com* al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician *Positive Energy, Inc.* 3201 Calle Marie Santa Fe, New Mexico 87507 *505 424-1112* *www.positiveenergysolar.com* http://www.positiveenergysolar.com/ * * On 4/6/2011 5:08 PM, Kirpal Khalsa wrote: Allan.According to the IO101 literature it is rated at upto 265VAC..however in all its wiring drawings it only shows one hot, one neutral and a ground!?? I am puzzled.? Kirpal On Wed, Apr 6, 2011 at 2:23 PM, Allan Sindelar al...@positiveenergysolar.com wrote: Kirpal, I believe that the IO101 is only designed to accept 120VAC, not 240. The supplied AC pigtail is 15A 120V, and it uses a contactor, which would be a specific voltage only. Unless I'm mistaken, you don't want to supply 220 (240) VAC. I don't have answers for your other questions. Allan *Allan Sindelar* *al...@positiveenergysolar.com* al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician *Positive Energy, Inc.* 3201 Calle Marie Santa Fe, New Mexico 87507 *505 424-1112* *www.positiveenergysolar.com* http://www.positiveenergysolar.com/ * * On 4/6/2011 2:55 PM, Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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
Re: [RE-wrenches] Grundfos SQ Flex
Kirpal, Neither the SQFlex pump nor its accessories are UL listed. That can lead to some serious difficulties with the AHJ. Fortunately the pump can operate without any of the accessories -- neither the IO101 nor the CU200 is required. Murray, Siemens, Square D, and others make 250-Vdc 30-amp two-pole safety switches that may be used to select ac or dc power instead of the Grundfos switch. You might be pushing your luck operating the pressure switch at 213 VDC. Kent Osterberg Blue Mountain Solar Kirpal Khalsa wrote: Hi allso I have a pumping project using a grundfos SQ Flex pumpIt 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 ___ 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] Silicon-energy mounts?
Wrenches, I will be installing a few arrays at a local community college in MN and I'm looking for some information. I will be using silicon-energy cascade series modules and I'm wondering if anyone here has installed these modules. Silicon-energy is manufacturing these modules 15 miles from the college so this will be a very neat project. The roof and ground mounts seem to be fairly straight forward, but I'm wondering about awning mount arrays. These modules mount different than most modules on the market. Also, I'm running into problems with the building administration people in Minneapolis. They oversee all building maintenance of all colleges in MN. They don't want things on there roofs or walls.. Anyone deal with this? What is the best way to show them installing solar arrays on roofs does not lead to rivers of water running into the building or premature roof failure. Thanks as always for the help! Jesse Dahl IBEW Local 292 MSCF member NABCEP certified installer Instructor Sent from my iPad!!! ___ 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
