[RE-wrenches] EG4 Mini Split

[Jason Szumlanski]

I guess the secondary question is why would anyone use this system anyway
in a grid interconnected environment. The only rationale I could see is to
have some level of air conditioning when the sun is shining without having
to go through the expense of adding a hybrid inverter and batteries. But by
the time you install solar panels with a rapid shutdown system, the return
on that investment seems terrible considering that much of the solar energy
generated will be wasted unless you somehow need maximum cooling from this
unit 365 days a year during the daylight hours.




Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208

On Thu, Jun 19, 2025, 6:15 AM Jason Szumlanski <
jason at floridasolardesigngroup.com> wrote:

> I'm getting requests to install 4-6 panels for these mini-splits. I'm
> saying no so far, but it got me thinking... What are people doing for rapid
> shutdown for these systems? I can't see them being exempt. The manual is
> silent on the issue. It just shows a DC isolator from the panels to the
> point of connection in the unit.
>
> Jason Szumlanski
> Florida Solar Design Group
>
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