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Author Topic: Question on installing a 2w-b smoke alarm  (Read 1624 times)

EricS

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Question on installing a 2w-b smoke alarm
« on: January 17, 2015, 12:51:29 PM »
I am installing a DSC PC1616 panel in my house. The house was pre-wired for alarm and smoke detectors. I have 4 quantity of the 2w-b smoke detectors.  3 of the 4 are wired in series back to the panel. The 4th(in garage) runs back to the panel.  From looking at the diagram, it seems they need to be hooked up in series, but not sure how to accomplish that the way its cabled.

The other thing i need is annunciation.  2 of the 3 smoke detectors that are wired in series(Hallway locations) have an additional black cable.  It also seems the 2w-b smoke has a place to hook up the annunciation built into the device.  I have not purchased the annunciator the smoke detectors yet. Is there a recommended model?

So 3 questions;
How do i wire the detectors with my cabling?
How do i provide annunciation when the fire detectors go off?
What would be the best annunciator to buy?

Thanks in advance for your help.
 

TN DIY

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Re: Question on installing a 2w-b smoke alarm
« Reply #1 on: January 17, 2015, 08:53:33 PM »
Is it a 4 conductor cable to each smoke detector, for 4 smoke detectors you really don't need an annunciator as the smoke detector has a red led that lights up when the particular smoke detector trips.
Normally you have a heat detector in the garage due to exhaust could trip the smoke detector. I would put in the garage a 194 degree fixed temp heat detector.

EricS

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Re: Question on installing a 2w-b smoke alarm
« Reply #2 on: January 18, 2015, 08:23:44 AM »
They are 2-wire smokes detectors. The heat detector for the garage instead sounds like a good idea. 

Magnum Alert

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Re: Question on installing a 2w-b smoke alarm
« Reply #3 on: January 18, 2015, 09:57:54 AM »
the annunciator output on those detectors is for a remote LED to indicate when the detector is in alarm, if you had the detector in an inaccessible location like an elevator shaft, etc.

Not used on 99% of the systems out there.
Specializing in Ademco, DSC, DMP, Moose, Napco, and GE Concord and NetworX.
NICET certified - #121764
VESDA certified designer/installer.

TN DIY

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Re: Question on installing a 2w-b smoke alarm
« Reply #4 on: January 18, 2015, 07:05:14 PM »
Wire the last one in series with the 3 others. If it's only a 2 wire to the last unit, put the end of line resistor there.

xKing

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Re: Question on installing a 2w-b smoke alarm
« Reply #5 on: January 20, 2015, 10:04:59 AM »
Why didn't you go with 2WTA-B (smoke detectors with built-in sounders and thermal sensor)? Or you planning on separate sounders to satisfy "85dB at the sleeping pillow" requirement?

 

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