[RE-wrenches] Auto Gen on Outback

[Tump]

I am very confident using the OB VFX AGS settings for OFF GRID situations.
Be very careful using the flex net to s/s your generator. anytime this unit is disabled it will reference the battery voltage at that point as the full battery set point. There once was a time where OB suggested that one uses the AGS on the VFX only.
IF you do use the FNDC install a 10 amp breaker to allow you to disable the unit, after you have removed the cable to the hub. Fully charge your batteries using a refractometer then repower the FNDC. otherwise you WILL have all sort of issues. I have always found that the issues related to no start w/ the OB is either incorrect user settings , out of date software, or and this has always seemed to rectify the issue is to REPOL the mate once every few months.
AGS /gen start wiring into the MASTER VFX which should be located at the BOTTOM of your stack. ALWAYS install a temp sensor.....battery thermal runaway is NOT a pretty scenario!
On Apr 3, 2013, at 12:59 PM, Will White wrote:

> I’ve heard the same thing about the Outback auto gen start so I was hesitant to set it up on my off grid system.  I ran for three years manually starting and stopping the generator.  Over the winter I went away for an extended period so I set up the auto start.  I wish I had set it up from day one.  I’ve never had a problem and with the Flexnet DC monitor there are all kinds of great settings for when you want it to start and stop.  It’s worked flawlessly since I set it up.
>  
> Thanks,
> Will
>  
>  
> __________________________________________________________________________________________
> Will White
> Regional Field Operations Manager – New England
>  
> Real Goods Solar
> 64 Main St.
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>  
> From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Drake
> Sent: Wednesday, March 27, 2013 3:52 PM
> To: re-wrenches at lists.re-wrenches.org
> Subject: [RE-wrenches] Auto Gen on Outback
>  
> Hello Wrenches,
> 
> We are adding a Generac EcoGen to an existing Outback VFX 3648 system.  It was the recommendations from those of you on this list who have installed them that led to this choice. Your testimonials are very much appreciated.
> 
> I've read, on this list, that people have had issues with FX family inverters starting and stopping generators reliably. The plan was to go with the Atkinson GSCM and a separate voltage controlled relay.  It appears that if the system is 48 volts, it is necessary to center tap the battery bank for a 24 volt feed to the GSCM. This I don't want to do.
> 
> Is it still agreed that the FX inverters are not reliable for starting and stopping generators? 
> 
> Has anyone used a GSCM on a 48 volt system without problems?
> 
> Thank you,
> 
> Drake 
> 
> 
> 
> 
> 
> 
> 
> Drake Chamberlin
> Athens Electric LLC
> OH License 44810
> CO License 3773
> NABCEP Certified Solar PV Installer
> 740-448-7328
> http://athens-electric.com/
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