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 <frene...@psln.com
<mailto:frene...@psln.com>> 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 <http://www.frenergy.net>
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