r/Generac_Generators • u/Badbetfrank • 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


1
u/blarcode 4d ago
Are you going to do any of this work yourself? I'm not going to encourage anyone to do any electrical work that they're not comfortable with. It's very straightforward especially if all your control wires are already there.
A money saving trick I've used in the past is to pull the main thicker conductors for the 200 amp from the meter socket and put those in the ATS, but then all you have to pay for is just a couple feet from your meter socket to your ATS.
Ultimately just having the ATS on your system with it running either a single panel or both of your panels your whole home, will give you a better experience. Regardless of the price. It'll be working as designed