Fire System Smoke Test (March 28, 2006)

Smoke Test Commissioning for the opening of the newest building at my former workplace.

Category:

People & Blogs

Tags:

• fire
• alarm
• smoke
• marshal
• code
• commission
• building
• test

[eclire123455]

those thing next to the wall that shows red when the fire alarm is on why?

[W7ENK]

It's tied to the Nurse Call system, and shows that the smoke detector in that room has alarmed.

[thesdx]

Is the nurse call system activated by the fire alarm system?

[W7ENK]

I think it's tied in.

[SystemSensor224]

CH-70s don't sound that real. I think they have to be E-70s with the tone coming from the 4100U

[SystemSensor224]

I think it's simplex/wheelock.

[SilentXKnight5204]

Is test commissioning pretty much the same thing as acceptance testing?

[W7ENK]

I'm no expert on this, so maybe someone else can explain better, but as I understand it, the basic idea is to isolate the smoke by using the building's BAS/HVAC system to create positive pressure in the zones surrounding the smoke zone, and negative pressure in the smoke zone to isolate the smoke, keep it from spreading throughout the rest of the floor/building, and then evacuating/purging the smoke from that zone. Basically.

[thesdx]

CH70's have a more synthesized sound, like in Coffee and Sugar's vid. They don't sound like a real mechanical chime. This sounds like someone (probably Simplex) sampled the 2902-9234 and put it into the 4100U.

[pivotous]

they are CH70s, they're just set to high frequency, high volume.

[pivotous]

no, actually, they are CH70s 4100U doesn't make the sound. essentially, they're E70s with tone cards on the back that are adjustable.

[W7ENK]

True, but being a healthcare facility, there is a certain level of descreet-ness that should be maintained.

In the event of fire, the basic strategy in a healthcare occupancy is to "defend in place" — to isolate patients and staff from fire and smoke while emergency personnel respond to the situation.

But, I agree with you - a fire alarm should be so loud it makes you want to leave the area, ears bleeding, women and children crying, etc... but everyone safely out of harm's way.