Great Job.

Also would you know how far apart the smokes need to be? Im in California, anything different i need to do due to the place I’m in?

Some detectors don't come with the positive and negative terminal names some are numbers, can you tell us how the connections are made with such detectors.

Where do you put the resistors?

Hi bro. Fire damper connection crh. ct1 divice se 4 damper connection explan plz

y u connected supply and backup in series

EOL value? 10k?