I use Ademco Vista 20p panels. I need to add 2 Co detectors and 2 Natural gas detectors. Ademco has a Co type for fault reporting, but I do not see a Natural gas faul code. What do you guys use?
Also can I put all 4 detectors on a zone expander? The manual says don't use zone doubling and Ademco Tech said don't use expansion module but he seemed a bit confused when I asked him why. Anybody know why? Thanks Paul.