On Wednesday, July 17, 2019 at 11:52:32 PM UTC-4, Arlen G. Holder wrote:
On Wed, 17 Jul 2019 23:25:34 -0400, wrote:
Essentially they are probably 2 100a panels fed by a 200a service.
What amp service do most people have?
Without taking a survey, who knows? It all depends on how large the
place they live is and when it was built. 200A service is common in
good size single family homes built in the last 30 years or so.
I just put some chalk on the raised letters of my mains circuit breaker
which showed the mains breaker to be 200 Amps (not 300 Amps as I stated
prior).
https://i.postimg.cc/g2VRj758/transfer25.jpg
There are three separate 100 Amp breakers, each going to a different panel.
https://i.postimg.cc/NFX84jNP/transfer26.jpg
So I think, at this point, that the reason for the TWO 100A Generac model
79848A transfer switches
Sounds right and must have significantly increased the cost of the
installation. Why you have two panels for the house, instead of one
remains a mystery. I've seen new work here that uses two, for 4000
sq ft houses. They run a 300A service, use two panels right next
to each other to hold the large number of breakers.
https://i.postimg.cc/ZnS4W9pb/transfer16.jpg
is simply that each one handles 100 amps nominally.
https://i.postimg.cc/c49KfVwY/transfer01.jpg
Now I just need to figure out how to debug why this two-fisted solenoid
isn't switching on automatically - but it does switch on when I flip it
manually.
https://i.postimg.cc/N0wQX4Jm/transfer02.jpg
As others have said, since neither one works, it's likely that the Generac
generator isn't sending it the signal to switch over. The generator makes
that decision. When the line voltage drops, it starts up the generator.
Once the generator reaches proper voltage, it sends the cut-over signal.
From what I've seen, Generac is crap. I assume that when you say it works
when you manually cut it over that means the generator is generating
proper voltage. But have you verified it with a meter? If it was putting
out 100V or 130V, or 50hz, then the generator logic won't send the
cut-over signal. If that's OK, then seems either something is wrong with
the generator module/circuitry that controls it or the wiring in between.