[RE-wrenches] Knockouts far from the backplane.

[Tyrone Houck]

At my house(before I got hip to using bigger gutters) I furred out the wall
with 2x4s and 1/2" plywood and used a 6" for my AIO...worked nicely.




On Fri, Jul 25, 2025, 3:43 PM Zeke Yewdall via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I noticed this on a SolArk job -- I think I bought out all of NW montana
> of 1" offset nipples to get 3 of them mounted to an 8" gutter once.
>
> On the Midnite AIO's a 10" gutter is perfect to not need any offsets.  But
> you can mount smaller gutters on various levels of unistrut to space them
> off the wall.  An 8" gutter on standard unistrut works fairly well, and I
> think you could space a 6" off with two or three levels of unistrut to get
> it to line up well.  Of course then the gutter is too far from the wall to
> easily mount other equipment on top of it, and it can be harder to do rear
> entries into the gutter from the wall.  That's where the 10" gutter is
> nicer, because it can catch the front of the inverter, as well as an AC
> panel or such mounted off to the side of the inverter, and catch pass
> throughs into the back of it.  I'm not sure about the SolArk and Fortress,
> but I imagine they'd be pretty similar.
>
> Zeke
>
>
>> Message: 1
>> Date: Fri, 25 Jul 2025 15:19:29 -0700
>> From: William Miller <william at millersolar.com>
>> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
>> Subject: [RE-wrenches] Knockouts far from the backplane.
>> Message-ID: <12d27fd24ffa361c26a5955f888d098e at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Friends:
>>
>>
>>
>> I have noticed increasingly that inverters I have been using (Soul-Arc and
>> Fortress Envy) have knockouts that are far in front of the backplane on
>> which the inverter would be mounted.  Connecting conduit from these
>> inverters into standard gutters, load centers and pull boxes is quite a
>> hassle:  Offsets can eat up a lot of vertical space.  Pulling elbows (LBs)
>> don?t really work in this situation.
>>
>>
>>
>> See diagram below:
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> One solutIon is to stack pull boxes or gutters, althouigh this eats up
>> vertical space and increases the labor and parts count:
>>
>>
>>
>> How are the rest of you handling this backplane problem?
>>
>>
>>
>> Thanks in advance.
>>
>>
>>
>> William Miller
>>
>>
>>
>> Miller Solar
>>
>> 17395 Oak Road, Atascadero, CA 93422
>>
>> 805-438-5600
>>
>> www.millersolar.com
>>
>> CA Lic. 773985
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>
>
> --
> Zeke Yewdall
> PV Engineer
> NABCEP #031508-89
> zeke at darkforestsolar.com
> 303-523-3592
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