[RE-wrenches] GSCM-mini with Honda EM5000SX
SunHarvest
eric at harvesthesun.com
Tue Mar 26 08:42:53 PDT 2013
Thanks all for the comments. I did not install the batteries, genny, Outback inverter, or Mate, just the GSCM and an RTS. I've given the homeowner a lot of advice along the way but did not touch the other installer's work. It was clear from the beginning that the homeowner knows nothing about off-grid power generation or battery maintenance and that the previous installer didn't bother with code compliance or educating the homeowner on how to operate his own system. Yes, it's one of those. I'm trying to keep my distance while still being available to answer questions. Thanks again guys!
Eric Stikes
SunHarvest
----- Original Message -----
From: William Miller
To: RE-wrenches
Sent: Monday, March 25, 2013 12:41 PM
Subject: Re: [RE-wrenches] GSCM-mini with Honda EM5000SX
Eric:
The generator-based charging may impose higher currents into the batteries than either PV charging or inverter consumption, triggering the problem.
Melted battery terminals are not uncommon. You must have washers under your bolt heads with lead flanges. Otherwise the bolt heads sink into the lead, loosening connections. All mating surfaces need to be newly wired brushed just before assembly. Battery connections need to be re-torqued annually.
William Miller
At 09:40 AM 3/25/2013, you wrote:
Larry,
Thanks for your reply. For some reason the schematic I received from the tech at Atkinson did not show any wires being connected to pins 9 & 10 and as I'm a literalist I did not make those connections. After I received your (and other) feedback I connected gen power to those pins and the AGS seemed to function fine. Within 2 days the customer called me back saying his genny was shutting off after 20 mins of runtime. I told him to disconnect or reprogram one system component at a time to find the fault source. Before a fault source was determined, he observed that two batteries in his bank were experiencing the "battery terminals melting into the battery casing" (as was texted to me by the customer). I have no idea how a GSCM interface would cause or allow an overcurrent fault at the batteries but the timing of the installation seems to indicate that the AGS is at fault. Ever heard of this before?
Eric Stikes
SunHarvest Solar
We install solar pool pumps quite frequently here in the Caribbean. We use Sunpumps - excellent company, great support. Email Joe Lines joe at sunpumps.com for design assistance, he is very helpful.
On Wed, Feb 20, 2013 at 1:02 PM, William Korthof <wkorthof at gmail.com> wrote:
A few questions.
I have a customer who really wants a solar-direct pool pump for his home. Medium size in-ground pool and I'd like the pump to be strong enough to lift to the solar pool panels (12 ft lift above pool level). I'd like to offer him hardware that is at least one notch above experimental beta-test. I remember the SunCentric from several years ago, but not sure how durable that turned out, and I was having trouble a vendor for it now. Any suggestions for today with some favorable track record? Or suggestions on what to avoid?
William Korthof
Sustainable Solutions Partners
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