grundfos 3sqf-2 pump

System

hi,
this pump works from 30v.d.c to 150v.d.c and also on a.c..
if anyone has experience with this pump, does it work better with higher voltage or does it make a differance. the wires from the proposed solar array is 425'. i was thinking of using 4, 100 watt, 12v panels at 48v.d.c.. this may be obvious to some of you ,but i am a slow learner
thanks
charlie

niel

Re: grundfos 3sqf-2 pump

download this pdf and start at page 22 to get the sizing for you. it is a large file.
http://www.solar-electric.com/PDF_files/L-SP-TL-014.pdf