We had a local town home rule go into effect 15+ years ago requiring
sprinklers in anything 3+ units "substantially" renovated but it forgot to
mention annunciation (also forgot water supply).  Many slick property owners
got together and sued and after the dust settled, it was decided to put an
electric bell in the stair lobby or main lobby of each unit plus the
outside.  No formal fire alarm was required.  
I've done the accessory relay to wire a dry contact to a 3 wire 120 vac
smoke circuit but it voids the listing of the smokes, or did (been many
years).
These days Todd, I don't know how you could install a sprinkler system under
current MA code and not have to install a formal 72 FA.  3 units or more
requires supervision and central station in MA.
TD

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Mike
Henke
Sent: Wednesday, May 29, 2013 11:43 AM
To: [email protected]; [email protected]
Subject: RE: 13R local alarm

It may be possible to activate both the smoke alarms and a separate
waterflow alarm.
The flowswitch should have 2 sets of contacts.
One switch can activate a local alarm such as the 120 vac mini horn The
other switch may be able to activate the smoke alarms. 

This would provide the additional signal for waterflow so it wouldn't be
confused with burnt toast.

You probably have to contact the detector manufacturer to see how and if the
detectors can be activated from a separate switch. They may have a separate
module for this.
There are some products on the market for this such as Firex but I don't
know if they universally work with all makes and models of smoke alarms.
There was also a carrier frequency device made by Cepco products for this.

Regards,
 
mike
 
Mike Henke CET
Sprinkler Product Manager
Potter Electric Signal Co.
www.pottersignal.com
314-595-6740 Direct

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John
Drucker
Sent: Wednesday, May 29, 2013 10:28 AM
To: [email protected]
Subject: 13R local alarm

What's the purpose of these "local alarms" ?, to alert the dwelling unit
occupants ?  First and foremost is a fire alarm system required in this
building in accordance with IBC 907 ? If so then a fire alarm system is
required pursuant to IBC 907 and accordingly notification appliances in
accordance with IBC 907.5.  If this is a jurisdictional dwelling unit
occupant notification requirement outside the model code consider my
previous comment to interconnect the waterflow switch with the dwelling unit
smoke alarms which already meet the prescribed notification requirements of
the IBC and or IRC. 

Hope this helps,

John Drucker, CET
Assistant Construction Official
Fire Protection Subcode Official
Building/Fire/Electrical Inspector
Borough of Red Bank, New Jersey
Office: 732-530-2760 X 331
Cell/Text: 732-904-6823
Email: [email protected]
http://www.redbanknj.org





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