<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:12pt"><div>The Grundfos switch is voltage only. I'm not sure I would run it 700 ft or not, regardless. For that distance I would probably install a float switch in the discharge tank that shut off the inlet flow and backed water pressure down the pipe to a pressure switch located close to the pump. As the pressure in the line rises the pressure switch will see the increase and signal the pump to stop. A reverse switch is necessary for the Grundfos SQ signaling.<br>Be advised in either scenario that we have seen multiple instances of the pumps continuing to pump when signaled to stop. The only way to definitively make them shut off is to use a standard pressure switch and break the circuit between power source and the pump.<br></div><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt;"><br><div
style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Kirpal Khalsa <solarworks@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br><b><span style="font-weight: bold;">Sent:</span></b> Mon, August 23, 2010 3:54:15 PM<br><b><span style="font-weight: bold;">Subject:</span></b> [RE-wrenches] Grundfos SQ Flex Float Switch<br></font><br>
Hi All.....I can't find it in any of the manuals for grundfos.....does anyone know if the wiring to the float switch carries current or not. The float switch has 3 #14AWG wires.......I need to add about 700 feet of wire from the CU 200 controller to the storage tank.....I want to use #18AWG......is this okay? most float switches I have used do not carry current they are simply signal wires and can use very small gauge for long distance.....<br>
Anyone know off the top of their head?<br>Thanks....<br clear="all"><br>-- <br>Sunny Regards,<br>Kirpal Khalsa<br>NABCEP Certified Solar PV Installer<br>Renewable Energy Systems<br><a rel="nofollow" target="_blank" href="http://www.oregonsolarworks.com">www.oregonsolarworks.com</a><br>
541-218-0201 m<br>541-592-3958 o<br>
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