I bet if smoke detectors were used on the system when the building was constructed, there would be a smaller auxiliary panel next to the main one (Pyrotronics FIU series), the actual detectors would be model F3/5. or they probably have simple heat sensors. I think you should share this with Glenn James/Old School Fire Alarms
@VintageCollections2 ай бұрын
@@neohistoryfan1014 Actually, the original detectors on this system were one lone Pyrotronics 3040, and they operate on a 4 wire basis (2 power, 2 initiating)
@neohistoryfan10142 ай бұрын
@@VintageCollections is that one in a white body rather than a silver one?
@VintageCollections2 ай бұрын
@@neohistoryfan1014 photoelectric model
@willbill8082 ай бұрын
I bet that smoke detector is an ESL 445DRT. It’s a 120VAC 4 wire smoke, for use in standalone elevator recall and old AC systems like these.
@LJ_spotsstuff2 ай бұрын
If you still have your 411 you should wire it to this panel
@LJ_spotsstuff2 ай бұрын
Thats definitely a National time panel from that coding