[RE-wrenches] Outback FM100

[Jay]

Hi William,

that warning isn't on the AFCI one,

Jay

Peltz power. 











> On May 15, 2020, at 10:41 AM, William Miller <william at millersolar.com> wrote:
> 
> 
> Jay:
>  
> On the FM100 landing page.  The warning is pasted below.
>  
> Due to the different voltage ratings, OutBack Power does not recommend mixing the FM100-300VDC with the FM60 or FM80-150VDC controllers on the same battery bank.
>  
> Interestingly the warning is not seen on the FM100 AFCI landing page.
>  
> I thought I saw this also in one of the Owner’s manuals but I looked today and can’t find it there.  Interesting…
>  
> I have a client that wants to add a fourth PV array to a system with three FM80s.  This will require a fourth charge controller.  Being able to run smaller wire in the existing conduits is an attractive proposition, making the FM100 a desirable approach.  I now have to figure out if I can add the FM100-AFCI (which is apparently the only version available) to a system with three FM80s, and if I do, what do I do with the existing GFDI breaker and how do I arrange the DC bond?  There is a lot to consider here.
>  
> BTW, I was told by a tech support person for an on-line sales firm that the original FM100 did not have the AFCI but those units have been discontinued.  Now all FM100s have the AFCI capability.  I am weighing if I want AFCI if it is not required.  My territory includes central California wild lands so I suppose I should take advantage of any fire safety means at my disposal…
>  
> William
>  
>  
> From: Jay [mailto:jay.peltz at gmail.com] 
> Sent: Friday, May 15, 2020 7:34 AM
> To: william at millersolar.com; RE-wrenches
> Subject: Re: [RE-wrenches] Outback FM100
>  
> Hi William
>  
> Yes downsizing breaker to meet load is no problem. And getting wire that big into it with 1” KO is a pain. 
>  
> I’m pretty sure any hub will work, needs 3S mate
>  
> Where in the manual did you find the “don’t mix with other 60/80 controllers?  
>  
> Jay
>  
> Peltz power 
> 
> 
> On May 15, 2020, at 12:46 AM, William Miller <william at millersolar.com> wrote:
> 
> 
> Friends:
>  
> I have occasion to try the FM100 charge controller.  I am wondering of anyone had found any quirks with implementing this device.  I have a few specific questions:
>  
> 1.       I want to avoid AFCI unless mandated.  Will this be defeated if I don’t run the leads through the sense coil? (There is an AFCI and non-AFCI version but I can’t seem to find the non-AFCI version anywhere.)
> 2.       I noticed the manual indicates you are not supposed to mix the FM100 with the FM80 or 60 in the same battery system.  This negates it for one project I had in mind.  I am curious as to why this is.  Anyone know?
> 3.       Will the FM100 work with a standard hub?
> 4.       I suppose this unit requires a 125 amp breaker.  If the PV array cannot support that full 100 amps I might down-size the OCPD accordingly.  Anyone contemplate this question?
>  
> Thanks in advance.
> 
> William
>  
>  
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