When does code require magnetic door holders?
When does code require magnetic door holders?
(OP)
When does code require that Magnetic door holders be installed and tied to the fire alarm system? Some designers tie the older 120 volt smokes to release doors but according to code the constant power sourse should be supervised and the backup sourse should also be supervised making this method the least prudent design. Can the 120 Volt detectors that are not part of the fire system still be used do release doors?





RE: When does code require magnetic door holders?
I don't believe that you are required to monitor the smoke detectors for door holdopens at the FACP. But I could be wrong.
Anyway, regardless of my above statements, if you have an FACP, and you have smoke detectors, I don't see any good reason not to hook them together, you won't be saving THAT much money by keeping them isolated.
How's that for a speedy response, only took 2 months!
RE: When does code require magnetic door holders?
RE: When does code require magnetic door holders?
RE: When does code require magnetic door holders?
nor its power need be surpervised..
In fact you want to make sure that they are NOT fed off the FACP batteries..
RE: When does code require magnetic door holders?
RE: When does code require magnetic door holders?
Your last statement is true.
Except the technology you describe is 12-14 years old in the USA. In fact you can also program the relays in the bases of the 'addressable' smoke detectors and in addressable control moudles to change state upon any signal or event on the system just as the programmable relays in the FACP. The relays in the FACP are more reliable, imho.
Addressble or intelligent control modules hook up same as a smoke detector on initiaiton circuit. Some may require aux. power, most do not.
RE: When does code require magnetic door holders?
RE: When does code require magnetic door holders?
RE: When does code require magnetic door holders?