Simplex 4005 Fire Alarm System

A Simplex 4005 system in an apartment building. Elevator recalls to the ground floor at the end.

Category:

Science & Technology

Tags:

• Simplex
• 4005
• fire
• alarm

[Capt421]

nice video. was this an annual testing?

[blackmaxima]

@Capt421 Yep.

[SimplexGrinnellTech]

How were the visual signals on some of the light plates getting a 60bpm flash rate? 

[blackmaxima]

@SimplexGrinnellTech My best guess is there is a visual signal circuit coded to fast march, and an audible signal circuit coded to slow march for the horns.

[SimplexGrinnellTech]

@blackmaxima After watching the video a little more, I saw the lights are on 120bpm. Interesting. Are the strobes on the same signal circuit as the lights?

[blackmaxima]

@SimplexGrinnellTech well..... I wouldn't put it past an installer or tech to wire a strobe circuit, which requires steady non-pulsed power, to a coded circuit for the lights. Seen it quite a few times before that, but usually when I've seen that, the strobes flash at the same rate it's being coded, so here they'd probably flash to a fast march pattern and skip a few times.

[blackmaxima]

@SimplexGrinnellTech I've seen some of the installers/techs connect smartsync devices to coded signal circuits. the strobes will flash to the temporal coding. I used to note it all the time but nobody in the office took it seriously. so whatever.

[futurealarms121]

Why dose it sound like it's underwater.

[NewAgeServerAlarm]

Interesting system... horn/lights and horn/strobes. Was it originally installed like this or did they add the horn/strobes after?

[whelenvortexr4]

@wileyk209zback The one I went to had Tru Alert and some other Horn Strobe, Wheelock MTs, and some Simplex Detector, with Quick Connect Detectors, and Tbars.

[wileyk209zback]

@whelenvortexr4 They also just did the same thing at the local YMCA Youth Center; they swapped out the building's old Simplex 2001 fire alarm panel with a new Simplex 4006 system (retrofitted right into the 2001 cabinet!) but the existing signals, pull stations and heat detectors remained intact

[whelenvortexr4]

@wileyk209zback Our school has a Siemens MXL-IQ FACP and I bet if they ever built on they would replace it with an MXL

[wileyk209zback]

@whelenvortexr4 Yep, they can. They sort of did something similar at the school I attended for kindergarten, except the old panel is still intact and used for the pull stations and heat sensors (Simplex 4208), and they have a newer Simplex FACP (either a 4005 or 4010) for duct detectors and most likely to drive the signals (4051+4050-80 horn/lights)

[whelenvortexr4]

@wileyk209zback i didnt know they could replace the panel without replacing anything else

[jojaun2010]

@deafmonk19 I was scared of fire alarms too when i was in 1st, 2nd, and 3rd grade

[wileyk209zback]

I guess the building originally had a Simplex 2001 system of some sort, then they replaced the panel. Neat to see older Simplex devices on a 4005 system

[simplexalarms]

glad to see you got the video issue fixed.