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smoke detector wiring

S

stormy2084

Jan 1, 1970
0
I'm getting ready to wire my smokes and I'm not clear on how to get
them all to sound when one goes off. Here's what I'm planning; please
help me understand how to hook up the reversing relay. (Note model
numbers in parenthesis are System Sensor)

18 System Sensor i3 series 4-wire smoke detectors with sounders
(4WTA-B) each on a separate zone connected to a OmniProII panel. Each
smoke will require its own EOL relay (EOLR-1).

As I read the manuals, it appears that I'll need a reversing relay
(RRS-MOD) for each zone, for a total of 18. Is that correct? How do
the reversing relays get chained together? Or should these connect to
the alarm output? For that matter, can the smoke alarms be used as an
auxillary alarm for a break-in or is that a no-no?

Thanks!
 
C

Crash Gordon

Jan 1, 1970
0
18 zones for fire?
smokes as aux alarm for intrusion?
you ever do this before?



| I'm getting ready to wire my smokes and I'm not clear on how to get
| them all to sound when one goes off. Here's what I'm planning; please
| help me understand how to hook up the reversing relay. (Note model
| numbers in parenthesis are System Sensor)
|
| 18 System Sensor i3 series 4-wire smoke detectors with sounders
| (4WTA-B) each on a separate zone connected to a OmniProII panel. Each
| smoke will require its own EOL relay (EOLR-1).
|
| As I read the manuals, it appears that I'll need a reversing relay
| (RRS-MOD) for each zone, for a total of 18. Is that correct? How do
| the reversing relays get chained together? Or should these connect to
| the alarm output? For that matter, can the smoke alarms be used as an
| auxillary alarm for a break-in or is that a no-no?
|
| Thanks!
|
 
S

stormy2084

Jan 1, 1970
0
What's wrong with 18 zones? I like the idea of one per zone to make it
very easy to diagnose. We have a 5000 sqft house and the layout is
such that 18 detectors is appropriate using the placement guidelines
supplied by System Sensor. Sure, I could zone a few of them in the
hallways, but again, each on its own seems much more simple (expansion
boards are cheap). Reviewing my post, I guess it is 14 of the
detectors listed plus three heat only plus one optical detector (for
end-to end coverage along the peak of a 30x60' great room with a 24'
high barrel vault ceiling) for a total of 18.

As for the aux alarm - I was just curious... figured the more noise the
merrier. Not to mention I suggested that I figured it was a no-no.

Have I ever done this? Nope. I do know that I'll figure things out
and the final result will be a quality installation. I'll also run all
of my final designs by the home automation and security company I'm
working with, but I prefer to do the research on my time since I'm
paying them on a consulting basis. They don't normally work this way
but I'm "not an average DIY'er" (their words). In our (very small)
town, we have electrical inspections only and I've got a friendly
relationship with the inspector and working through things with him.
I'm also talking to the local fire department about the setup as well.

Having lurked in this group over a year and having read a lot of
historical posts, I figured getting a worthwhile response was about
50/50. My worst fear is that Robert Bass will reply, four people will
quibble over some local jurisdiction detail and then the whole thing
will be derailed with something about Bass being wanted by the FBI,
MI-6 and the Florida BBB /sarc.

Constructive feedback appreciated!
 
J

JoeRaisin

Jan 1, 1970
0
The reversing relay changes the polarity of the power causing all smokes
to sound. I know that for the 2WTA-B we use an RRS-Mod since that smoke
gets its coded sound from the relay.

We don't install too many 4wires but I think one relay would do it.

As far as using the smokes as an aux... there needs to a definite
difference in sound between a fire alarm and a burglar alarm since, in
the middle of the night, the two events require quite different responses.

You wouldn't want your 13 year old daughter climbing out her window
during a burglary only to come face to face with a desperate perp trying
to make an escape - likewise, you wouldn't want her hiding in her closet
during a fire.
 
J

J Barnes

Jan 1, 1970
0
You only need one RRS module on the smoke detector power wires. Even though
you have zoned out the smokes they will all use the same power source so 1
relay is good. You will need one end of line supervision relay for each
zone (18) of them. The reversal relay should be wired to a fire alarm
bell/siren output. I would not use the sounders in the smoke detectors for
burglary, although it is possible.

James B
 
C

Crash Gordon

Jan 1, 1970
0
Nothing wrong with 18 zones, just a bit of an overkill. No, I would not use
the sounders in the smokes as aux burg sounder.


| What's wrong with 18 zones? I like the idea of one per zone to make it
| very easy to diagnose. We have a 5000 sqft house and the layout is
| such that 18 detectors is appropriate using the placement guidelines
| supplied by System Sensor. Sure, I could zone a few of them in the
| hallways, but again, each on its own seems much more simple (expansion
| boards are cheap). Reviewing my post, I guess it is 14 of the
| detectors listed plus three heat only plus one optical detector (for
| end-to end coverage along the peak of a 30x60' great room with a 24'
| high barrel vault ceiling) for a total of 18.
|
| As for the aux alarm - I was just curious... figured the more noise the
| merrier. Not to mention I suggested that I figured it was a no-no.
|
| Have I ever done this? Nope. I do know that I'll figure things out
| and the final result will be a quality installation. I'll also run all
| of my final designs by the home automation and security company I'm
| working with, but I prefer to do the research on my time since I'm
| paying them on a consulting basis. They don't normally work this way
| but I'm "not an average DIY'er" (their words). In our (very small)
| town, we have electrical inspections only and I've got a friendly
| relationship with the inspector and working through things with him.
| I'm also talking to the local fire department about the setup as well.
|
| Having lurked in this group over a year and having read a lot of
| historical posts, I figured getting a worthwhile response was about
| 50/50. My worst fear is that Robert Bass will reply, four people will
| quibble over some local jurisdiction detail and then the whole thing
| will be derailed with something about Bass being wanted by the FBI,
| MI-6 and the Florida BBB /sarc.
|
| Constructive feedback appreciated!
|
 
S

stormy2084

Jan 1, 1970
0
A big thanks to all of you for all the very helpful information.
 
S

Stanley Barthfarkle

Jan 1, 1970
0
Even though you have zoned out the smokes they will all use the same power
source so 1 relay is good.

Using 1 power supervision module at the control will only supervise the
power supply itself- it will do nothing to supervise the wiring. The proper
way to supervise power on 4 wire smokes is an EOL power supv relay. In this
case, 18 of them...
 
D

Doug L

Jan 1, 1970
0
You took part of James response out of context, while he stated that you
would only need one reversing relay to activate the sounders, he also
clearly stated that you would still need a supervision relay for each zone.

The complete text of his reponse is quoted below

"You only need one RRS module on the smoke detector power wires. Even
though
you have zoned out the smokes they will all use the same power source so 1
relay is good. You will need one end of line supervision relay for each
zone (18) of them. The reversal relay should be wired to a fire alarm
bell/siren output. I would not use the sounders in the smoke detectors for
burglary, although it is possible. James B"

Doug L

--
 
R

Robert L Bass

Jan 1, 1970
0
I'm assuming the reversing relay is for interconnecting
the sounders, in which case you'll need 6 conductors
at each detector rather than 4...

I'm coming into this thread a bit late so pardon me if I missed something
but you shouldn't ordinarily need 6 wires for the smokes.

Run smoke power for all smokes through a single reversing relay. Run the
zone wire pairs to the detectors individually. When the panel goes into
alarm from any smoke detector all detectors will sound.

Don't use the smoke sounders for anything but fire. You want their sound to
mean one thing and one thing only -- fire.

--

Regards,
Robert L Bass

=============================>
Bass Home Electronics
4883 Fallcrest Circle
Sarasota · Florida · 34233
941-866-1100 Sales & Tech Support
http://www.bassburglaralarms.com
=============================>
 
F

Frank Olson

Jan 1, 1970
0
Robert said:
I'm coming into this thread a bit late so pardon me if I missed something
but you shouldn't ordinarily need 6 wires for the smokes.

Run smoke power for all smokes through a single reversing relay. Run the
zone wire pairs to the detectors individually. When the panel goes into
alarm from any smoke detector all detectors will sound.

Don't use the smoke sounders for anything but fire. You want their sound to
mean one thing and one thing only -- fire.


I see that the "Winfixer" pop-up ad you're using has been modified to
identify the viewers home country. There's a Canadian Flag in the upper
right corner. You still haven't changed the "contact us" address
information though... It still comes up as your old Pine View Circle addy.
 
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