Re: 2 wire vs 4 wire Smoke allarms

["Robo" <nospam@xxxxxxxxxxx>]

"Frank Olson" <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:Wm9Dg.367706$iF6.184155@xxxxxxxxxxx
> Robo wrote:
> > "Frank Olson" <Use_the_email_links@xxxxxxxxxxxxxxxxxxxxxx> wrote in
message
> > news:d26Dg.367317$iF6.199323@xxxxxxxxxxx
> >
> >>There is nothing in the NEC that states you can't connect the relay of a
> >>110VAC smoke alarm to a burg/security panel.  Most manufacturers of
110VAC
> >>smoke alarms *recommend* the relay not be used to interconnect to a
> >>security system.  I believe this link will prove helpful:
> >>
> >>http://www.icca.invensys.com/manuals/firex/110-278F.pdf
> >>
> >
> >
> > yes,but it does say you have to use parts that are LISTED for the
> > application.  that link specifically states not to use in the
application we
> > are discussing.  ie not LISTED for the application, ie not code.
> >
> >
>
>
> What "application" are we talking about??

get lost easily?

>Connection to a LISTED fire
> alarm?  We're talking about interconnection to a security panel.

in this app it is a fire alarm

> There's nothing in NEC that forbids this.  You're monitoring a contact
> point.  How many contacts do you know are LISTED for a particular
> application?

on a fire alarm, all of them

>What's to prevent me from hooking up a push button switch
> to bypass a zone in my alarm panel?  I could use a standard light switch
> for that.  It's certainly not "listed" for the application.

for a burglar alarm you are correct
but
again this app is a fire alarm

>
> To the OP.  There is nothing in any code or statute that forbids you to
> interconnect your AC smoke alarms to your security alarm panel.  You
> can't connect it to a LISTED fire alarm panel, though.

are you saying the OMNI is not listed for household fire?

> Furthermore, no
> Authority Having Jurisdiction is going to fail the application as long
> as you meet code requirements regarding physical separation of the high
> voltage (110VAC) from the low voltage (12 VDC).