[RE-wrenches] Enphase Envoy in PVC J-Box

[Jason Szumlanski]

I'm talking about systems that exceed 52 IQ7+ microinverters. These systems
require an alternative AC load center. I have actually used the IQ combiner
to just house the Envoy in the past for simplicity's sake even though the
cost is somewhat higher. It is interesting to note that Enphase probably
did not anticipate this use case for the IQ combiner because they do not
include a knockout cover for the first PV string.

On Thu, Mar 28, 2019, 2:43 PM Christopher Warfel <
cwarfel at entech-engineering.com> wrote:

> If you are using the IQ Combiner, the wiring diagram is on the inside
> cover.  Coming from the array, L1, L2 and G. Going to the utility
> interconnection, L1, L2, G, N.  L1, L2 into the 20a breakers, G to the G
> busbar, N to the N busbar.  It's all there and is a nice package I think.
> My personal preference is to use manufacturer's equipment instead of making
> my own. I don't know if the AHJ would complain about non-listed equipment
> in the case of making your own DAS center. The Envoy may need a button
> pushed once in a while.  I have asked customers to do this to save a trip.
> The Enphase "package" is safe for them to do that.  I hope I did not miss
> your question. Chris
> On 3/28/2019 12:55 PM, Jason Szumlanski wrote:
>
> When mounting an Envoy on the supplied DIN rail in a PVC box wired via PVC
> conduit, is there any requirement to accompany the conductors with a ground
> wire? The envoy itself does not have a ground connection and the only
> exposed metallic part is the DIN rail.
>
> I'm thinking I need to mount a ground lug in the PVC box so the circuit
> conductors have a ground wire in the conduit. I have always used the IQ
> combiner even for larger systems because it was just easier. I'm
> considering changing to a regular PVC junction box with just an Envoy.
>
> While on the subject, if there is ample space within a load center, would
> it be permissible to mount the Envoy right inside the enclosure? 400A plus
> load centers in residential settings often have a lot of empty space!
>
>
>
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