SQFlex questions [RE-wrenches]

[Roy Butler, Four Winds RE]

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Overall we have had real good luck with the SQ Flex line of pumps.
A real nice change after spending so much time installing/ 
troubleshooting/ repairing/ apologizing for the RegrEta pump line.

Right now we have about 15 Grundfos systems in the field (literally) and 
the only issue we have had is with the CU200 controller. At first it was 
that infernal wiring terminal Travis and Brad mentioned but that was 
easy to fix.

The latest fun thing is the CU200 showing an F3 fault which in most 
cases does not shut the pump down.
F3 is a lack of communication between pump and controller and we have 3 
systems doing this intermittently.
On the first system to do this, we replaced the controller, array to 
pump wiring and looked at everything in the
system several times over to no avail. Our conclusion so far....either 
something in the pump electronics is fubar
or it's just one of life's great mysteries. I'm following this 
discussion with much interest!

This being my busy season and with the pumps still running OK, I admit 
to putting this on the back burner for now.
It's a good thing I can purchase large quantities of patience, humor and 
beer wholesale.......

Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind 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.




Travis Creswell wrote:

>The only problems we've ever had with SQ Flex's have been related to the
>really easy to pull out terminal block.  Now we make triple extra sure there
>is strain relief in addition the cable glands supplies with the CU200.
>We've got them in any variety of applications from array direct to battery
>direct to 120 AC only.
>
>Travis Creswell
>Ozark Energy Services
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