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Fire Alarm Door Release

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Can anyone confirm if the fire alarm door release devices has it ever been acceptable for these to be wired of the sounder circuit rather than direct to a relay on the fire panel?

11 hours ago, Rich08 said:

Can anyone confirm if the fire alarm door release devices has it ever been acceptable for these to be wired of the sounder circuit rather than direct to a relay on the fire panel?

How far back do you want to go? At least 26 years, I'd need to do out my 1988 & 1980 copies of BS5839-1 to check earlier

  • 2 weeks later...

In which case it wasn't - by then BS5839-1 required compliance with BS7273 where the fire alarm is used to actuate other fire protection systems and BS7273-4, which covers doors, doesn't allow it in Clause 10.1 as silencing the alarm should not de-actuate any release mechanism (i.e. return electrically held-open fire doors to the held-open state) which means they can't be off the sounder circuit.

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