Fire Alarm - Smoke Detector for fire door release

C

Chris Yan

Member
Location
Philadelphia
Occupation
Electrical Engineer
Hi all,

I'm working on a project with horizontal exits that need to be released by the smoke detectors installed nearby. Today City's reviewer stated that based on NFPA 2019 17.7.5.6.3, The smoke detector shall be listed for releasing service. I've gone through several manufacturer's websites and can't find any smoke detector with that special specification. Does anyone know which specific smoke detector meets with Code's request?

Thanks,
 
Chris Yan said:
Hi all,

I'm working on a project with horizontal exits that need to be released by the smoke detectors installed nearby. Today City's reviewer stated that based on NFPA 2019 17.7.5.6.3, The smoke detector shall be listed for releasing service. I've gone through several manufacturer's websites and can't find any smoke detector with that special specification. Does anyone know which specific smoke detector meets with Code's request?

Thanks,
Click to expand...
Are the doors being released directly by the smoke detector (relay base kind of deal) or is there an addressable relay module that releases the doors?
 
gadfly56 said:
Are the doors being released directly by the smoke detector (relay base kind of deal) or is there an addressable relay module that releases the doors?
Click to expand...
Yes, the doors are released by the relay module. The relay module shall be activated by the smoke detector. Does that mean that the smoke detector doesn't directly release the door?
 
Chris Yan said:
Yes, the doors are released by the relay module. The relay module shall be activated by the smoke detector. Does that mean that the smoke detector doesn't directly release the door?
Click to expand...
Winner, winner, chicken dinner!! Since the detector is dropped into the input group for control module, it isn't directly releasing the door. You could have any number of inputs, some not heat detectors, if you wanted.
 
Are these to be standalone, or are they to be connected to a system? If connected to a system, the make and model would be helpful as well as hearing whether this is new construction or retrofitting an existing facility.
 
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