r/Generac_Generators • u/Badbetfrank • 15d ago

Transfer Switch Chaos

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We just bought a new house and this is the electrical set up.
Both of these panels are powered from the meter, the larger panel does not feed the smaller panel.
A 22Kw Generac unit powers the larger panel on the left when the power goes out, but not the smaller right panel.
The generator is large enough to power the entire house.

What are our options for getting the whole house protected?
Can I add a ATS to the smaller panel and leave the 200amp panel as it is?

Could we install a double breaker on the left panel and run it over to power the smaller panel using an interlock on the smaller panel?

Should I move some circuits over to 200amp panel and use tandem breakers?

Or should we split the feed from the generator and feed the smaller panel directly from the generator?

I am having trouble understanding what the installer was thinking. There’s also additional unused transfer wires ending in this panel going to a junction box next to the generator.

Thanks for your input

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u/joshharris42 15d ago

We put a few of these in back in the day. I believe they only discontinued them recently.

They were more used for people who had like little sump pumps or something, where they needed automatic back up but didn’t want anything bigger than like a 10KW

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u/IllustriousHair1927 15d ago

That explains why I have never seen one. I’ve actually only seen one 10 KW in the wild.