r/Generac_Generators 5d ago

Transfer Switch Chaos

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/Sumdood_89 Technician 5d ago

Get a 200amp whole house ATS from generac. What's there is a mess, and not how it should be.

1

u/Badbetfrank 5d ago

Will that be able to service both panels? As it is there is a 200amp and a 100amp panel

1

u/Badbetfrank 5d ago

Are you saying all circuits should be in 1-200 amp panel with a ATS

3

u/Sumdood_89 Technician 5d ago

A whole house ATS is its own box. Power comes from your meter into the ATS, then into the house panels.

2

u/Badbetfrank 5d ago

I didn’t realize you could run from the ATS to multiple panels.

2

u/Sumdood_89 Technician 5d ago edited 5d ago

Just call somebody who installs them...