Ok, so I’ve had a play with the sensor here and will tonight update the binding with new channel definitions.
I tested the SMOKE and HEAT alarms (courtesy of my fire! 
).
I enabled config parameter 2 to “All notifications enabled” - without this the heat alarm didn’t work.
I believe you also need to change parameter 4 as the heat alarm doesn’t sound even though the notification came up on the UI - I wasn’t game for another test tonight - it’s not exactly a wife friendly device ;).
This is ONLY using association group 1, which should be configured automatically by the OH binding when the device initialises. This is using the notification class now - the system was previously configured to use the SENSOR_ALARM class. The NOTIFICATION class also sends other alarms which I’ve added, but not tested as they are more difficult (hardware failure, and low battery for example!).
Cheers
Chris