Re: 2 wire vs 4 wire Smoke allarms

[robertlbass@xxxxxxxxxxx]

> Any relay smoke alarm can be connected to a home
> security system...

That is patently untrue.  When you connect smoke detectors or any other
type of fire detectors to an alarm control panel the system becomes a
fire alarm system and must comply with code requirements for a fire
alarm.  There is no exception for a "home security system."

> It's not *recommended* by most smoke alarm manufacturers...

It's prohibited by code unless the part is specifically "listed for the
purpose" by the manufacturer.  We've had this discussion before.  Mr.
Olson claims I've never given code references to illustrate the point.
However, he conveniently forgets the following passage which I posted
in an earlier discussion.

"NFPA72  FUNDAMENTALS OF FIRE ALARM SYSTEMS 72-21
1-5 Fundamentals.
1-5.1 Common System Fundamentals.
1-5.1.2 Equipment.  Equipment constructed and installed in conformity
with
this code shall be listed for the purpose for which it is used."

"1-5.3 Compatibility. All fire detection devices that receive their
power
from the initiating device circuit or signaling line circuit of a fire
alarm
control unit shall be listed for use with the control unit."

In the prior discussion, Mr. Olson also offered the following advice
which clearly violated code:

> I would suggest pulling four conductor 18 gauge
> wire to the same electrical box your builder's
> electrician will use to wire the smokes.

> I've asked Robert to post the specific wording that supports his
> argument many times...

See above.  The answer was given quite some time ago but Mr. Olson
insists it wasn't given.  The reader may wish to note that the comments
by Mr. Olson in this forum are usually based on personal animus rather
than anything factual or experiential.

Regards,
Robert L Bass
www.BassBurglarAlarms.com