Hmm, The SQF and SQ series pumps are soft start! Dave Angelini Offgrid Solar "we go where powerlines don't" http://members.sti.net/offgridsolar/ [1] e-mail [email protected] [2] text 209 813 0060
On Tue, 22 Sep 2020 12:46:46 -0700, Kent Osterberg wrote: The Grundfos 16SQF-10 will give you 12 to 13 gpm at 230 feet. But that is working at the upper edge of this pump's lift rating. Not sure that meets your definition of most of the 20 gpm. The maximum output current, 50 A, of the inverter system equals the locked rotor amps of a 2 HP motor. Without a soft start you aren't going to reliably start the 2HP pump while running other loads. Even the 1.5 HP is problematic. Kent Osterberg Blue Mountain Solar On 9/22/2020 12:13 PM, Jerry Shafer wrote: Go look at grudfus SQFlex they can go pv direct or AC in Jerry On Tue, Sep 22, 2020, 12:10 PM frenergy wrote: Wrenchers, We're upgrading an off-grid water system. Dynamic head while pumping at 20 GPM is 150 ft from water level to wellhead and then its 85 ft vertical to storage tank so 235 ft total head to open discharge. We would like to get most of that 20 GPM, we need to know if there is personal experience with starting a 1.5 or 2 HP, 240 vac, 2 wire submersible pump against that kind of head with an Outback Flex Power2 (2 X VFXR3648A-01 inverters). The FP2 will also be powering standard off-grid loads. There is plenty of battery behind the inverters. If a soft-start solution is required, some specifics would be great. Grundfos doesn't seem to have an option for these requirements, solar-direct is not an option at this location. Thanks, Bill Feather River Solar Electric Bill Battagin, Owner 4291 Nelson St. Taylorsville, CA 95983 530.284.7849 CA Lic 874049 www.frenergy.net [4] -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus [5] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] [6] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [7] List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [8] List rules & etiquette: www.re-wrenches.org/etiquette.htm [9] Check out or update participant bios: www.members.re-wrenches.org [10] _______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] [11] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [12] List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [13] List rules & etiquette: www.re-wrenches.org/etiquette.htm [14] Check out or update participant bios: www.members.re-wrenches.org [15] Links: ------ [1] http://members.sti.net/offgridsolar/ [2] mailto:[email protected] [3] mailto:[email protected] [4] http://www.frenergy.net [5] https://www.avast.com/antivirus [6] mailto:[email protected] [7] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [8] http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [9] http://www.re-wrenches.org/etiquette.htm [10] http://www.members.re-wrenches.org [11] mailto:[email protected] [12] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org [13] http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org [14] http://www.re-wrenches.org/etiquette.htm [15] http://www.members.re-wrenches.org
_______________________________________________ List sponsored by Redwood Alliance List Address: [email protected] Change listserver 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 or update participant bios: www.members.re-wrenches.org
