Wrenches:
Thanks for all of your responses about Grundfos and Lorentz pumps and
controllers.
At least now, whichever pump I choose I know what to anticipate.
Bob Clark
SolarWind Energy Systems, LLC
-Original Message-
From: re-wrenches-boun...@lists.re-wrenches.org
[mailto:re-wrenches-bo
Wrenches,
I have been hearing differences in opinions/interpretations when it comes to
filling out electrical permit applications for grid-tie PV systems and you come
to the line that asks for "Cost of Installation (Labor plus
Material)", which determines the cost of the permit.
I have been in
This is a repeat call to those who (1) use or plan to use NREL's Solar
Advisor Module and (2) would like to form a "user's group" to share
experiences, helpful hints, and perhaps lobby NREL for new and/or improved
features.
So far Joel Davidson has expressed an interest. Any others interested? I
I have had problems with both the Lorentz and Grundfos. The controllers on
the Lorentz have had some problems, but changing out the controller is way
easier than pulling the pump which you would do if it was a Grundfos.
We had three of the Lorentz rotor failures that Windy mentioned, they seemed
It seems that both the Lorentz and Grundfos are about equal in reliability
these days so as Windy says look at the complete system and take it from there.
I like having all of the electronics on the wall with the Lorentz over down the
hole w/the Grundfos, but then the Grundfos wins most times wi
Good timing w/the question Kirk! An article I just wrote for Home Power Mag. on
just this topic has just been released. Look for Issue #136. The iPhone has
amazing apps that make our lives much easier.
-jeff
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
>SOLutions
Wrenches,
I need to replace a failed control board on a 1998 Rev. 4.01 SW4024.
The inverter continues to function properly as an inverter but is
unable to charge from a generator.
Our local Trace/Xantrex/Schneider service center has them but won't
allow sale of just the board. I can arrange t
I have 11 Lorentz systems in the field. The biggest problems I had were
with the controller.
Infant mortality, failure within the first 3 months and the float switch
circuit failing were some of the issues.
I also ran into the rubber problem that Windy mentioned.
So I switched to Grundfos. 16 o
Bob,
Warren is referring to problems with Lorentz that showed up 5-7 years
ago. There was a problem with rubber that occurred only in some kinds
of water. It took a long time to track down. It was solved and
reliability has been high ever since. That's what I've heard from
several sources
At one time Dankoff (the pre-Conergy Dankoff Solar) handled the the Lorentz
submersibles. They dropped them after about a year because of failures.
Now, that was several years ago and Lorentz may have gotten their problems
fixed, but we have felt more comfortable with the Grundfos.
10 matches
Mail list logo
