The panel has been swapped over to a newer one withou more information on the Apollo Discovery. link to PDF: www.apollo-fire.co.uk/getatta... page 2 shows the sensing modes and characteristics.
That symphoni is very overpowering, I remember when it was just the utility room and the shed and that was loud so I wonder what it’s like with the whole house
it will just fine, its just 3 relays. if your panel has inputs that say continuous and intermittent fault etc with a common 0v or common terminal it should be fine. read your panels instructions it will tell you what the input terminals do and how to use them.
Test logs I think if you have the old panel still make it as a repeater panel and Thame you don’t have to keep running around silencing and resetting the panel in the house I like the Apollo fire system the best It’s good and more nicer