In situations such as these you work out to in such as system(s) certification and testing records verification and review, since there could have been up to 50 or more sprinkler system types in many combinations in this type of facility. Water supply, pump failures, obstructed/closed valves and supervision, interior loss prevention personnel human error (testing and maintenance) are all typical starting points.
In these super sized facilities it takes months to get the bugs and supervisory wiring gremlins in integrated fire alarm controls and fire sprinkler interlocking worked out due to the vast spanning of sub-control and communications and panels. Even while occupancy permissions have been granted. It also takes that long or longer for the facility’s loss prevention staff to understand the systems and be confident in their own inspection, maintenance operations and testing.
AHJ’s have to stay on top of it because in real life, the facilities are approved for occupancy and operation in phases. That’s just the way it is.
It is also not un-common to see a facility have hundreds of false alarms after systems are commissioned due to building situations and after occupancy equipment relocations affecting supervisory equipment and creating gremlins. It is critical for facility loss prevention teams and FD staffing to not become complacent and understand the nature of these mega structures and develop plans to address the situations.
I’m happy to read that everyone got out and there were no injuries since it is not uncommon for these facilities to have zoned evacuation and notifications.
