Folks,
Trying to setup the Ring Pro hardwired doorbell wired up… and unsure how to connect it to the existing mechanical doorbell.
Here’s a mockup circuit diagram I’ve drawn… please can someone help and tell me how the connection setup should be.
Thank you in advance.
Hi @pandemonium. You can find some information on the setup process for your Doorbell Pro in our Help Center Article here. If you still have questions after that, don’t hesitate to reach out to our support team so they can help you get your Doorbell up and running. You can give our support team a call at one of the numbers available here. We’re taking additional steps to protect our team and help reduce the spread of COVID-19, so this has resulted in longer than normal wait times. If you are outside of the US, please read our response to COVID-19 here to see how to contact support. 
Hi @pandemonium,
I am unable to view your “mockup circuit diagram” but if your Ring Doorbel Pro came with a Bell Transformer and a Pro Power Kit V2 in the box like mine, here’s how I wired it up into my mechanical doorbell.
Since I could not find a spare DIN slot in the Mains Distribution box to install the Bell transformer, I installed it along with the Pro Power Kit V2 inside the existing mechanical doorbell enclosure. I removed all the hardware inside the enclosure and fixed the Bell transformer and the Pro Power Kit.
This, in my opinion, was the most easiest, neatest and convenient way to do this.
After a few months the Bell transformer from Ring which was humming from day 1 and heating up, stopped working. Although Ring sent out a replacement immediately, I bought a BG CUB1 Bell transformer from Screwfix and installed it in the mechanical doorbell enclosure. The Bell transformer is mounted sideways and upside down in the mechanical doorbell enclosure.
Attached pictures:
