[RE-wrenches] Discover AES Wall Mount Considerations

[James Jarvis]

Buckling of the wall studs is most likely going to be the failure mode. You
can use WebStructural to look at different designs. You'll find that
accurately defining the constraints on the structural members is the most
troublesome.
https://webstructural.com/

Personally, I don't think that supporting a couple of thousand pounds of
dead load hanging off the sides of $2 studs fastened with unknown fasteners
into unknown top and bottom plates is a super great idea. I would do it on
a poured concrete wall, but this sounds like it is asking for trouble.


-James Jefferson Jarvis
APRS World, LLC
+1-507-454-2727
http://www.aprsworld.com/


On Tue, Sep 6, 2022 at 9:30 AM Jason Szumlanski via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> 2x4 studs have compressive force to hold up over 1,000 pounds each when
> constructing a load bearing wall, so I don't think that is a limiting
> factor. But I am not a structural engineer, so consulting one would not be
> a bad idea.
>
>
> Jason
>
>
> On Tue, Sep 6, 2022, 10:21 AM Chris Sparadeo <sparadeo.chris at gmail.com>
> wrote:
>
>> Thanks Jason,
>>
>> I’m still wondering if there is an IBC reference for weight. The Discover
>> manual only states:
>>
>> “ For structural and seismic stability, the AES Battery must be mounted
>> onto a vertical supporting surface strong enough to support a minimum of
>> 227 kg (500 lbs) per battery. Failure to follow these instructions can
>> result in death or serious injury.”
>>
>> Other than asking a structural engineer, how can I be sure that the wall
>> is rated to 4,500 lbs?
>>
>> On Tue, Sep 6, 2022 at 9:20 AM Jason Szumlanski via RE-wrenches <
>> re-wrenches at lists.re-wrenches.org> wrote:
>>
>>> That won't be a problem as long as they are spread across several studs.
>>> Even 2x4 studs would be fine. Check the installation manual for details.
>>> The shear and pull out strength of the fasteners will be the limiting
>>> factor, not the wall itself unless very poorly constructed.
>>>
>>>
>>> https://assets.discoverbattery.com/documents/03_aes/805_product_manual/gui-aes-wall-mount-bracket-installation-guide.pdf
>>>
>>> Jason Szumlanski
>>> Florida Solar Design Group
>>>
>>>
>>>
>>> On Tue, Sep 6, 2022, 8:59 AM Chris Sparadeo via RE-wrenches <
>>> re-wrenches at lists.re-wrenches.org> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I have a project where I am contemplating hanging 9 Discover AES
>>>> batteries on a wall. Each battery is around 200 lbs, and although the stud
>>>> wall is a bulky 2”x6” with 16” OC…I have apprehensions that hanging almost
>>>> a ton of battery on the wall is a good idea. I’ve seen it done in other
>>>> install photos, however I can’t seem to find and good building code that
>>>> would inform my decision.
>>>>
>>>> Does anyone out there have a building code reference or experience that
>>>> might help?
>>>>
>>>> Thanks!
>>>>
>>>> -Chris
>>>> --
>>>> Chris Sparadeo
>>>>
>>>>
>>>> C_802-369-4458
>>>> H_802-728-3059
>>>>
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>> Chris Sparadeo
>>
>>
>> C_802-369-4458
>> H_802-728-3059
>>
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