luckylerado
Senior Member
- Location
- Lake of the Ozarks
We have coiling counter shutters at our transaction windows. The shutters are fire rated and drop on general alarm. Rather than power the drop device from the FACP, the electrician has a control transformer stepping down line voltage to 24 volts ran through a relay controlled by the fire alarm to drop the doors. My question is if NFPA 72 or other require the control voltage to be monitored similar to an elevator shunt trip circuit. There is a fusible link so an actual fire should drop the doors. The only reason we are required to tie to the fire alarm is because that is what is specified. I do not see this as a code requirement so I assume that the code does not address monitoring the control voltage. I have looked but that does not mean it is not there.