L) Lifespan : 30 minutes The number of real-time minutes between zone resets for this zone. When the age of the zone (measured in minutes since the last time that zone has been reset) reaches the zones lifespan the zone is then reset when the conditions of the Reset Mode are satisfied. B) Bottom of zone : 1300 The lowest numbered room belonging to this zone. This defines the bottom room of the zone - You should not change this. T) Top of zone : 1399 The highest numbered room belonging to this zone. This defines the top room of the zone - You should not change this. Enjoy