Can a BRK Model 92120B smoke detector directly plug in and replace an old BRK Model 4120B smoke detector (without an adapter)
350867
Yes, you will have use the new base but the screw holes are in the exact same place. I just replace my 4210B's.
350868
I had the same experience as Tony. I just had to replace the bases, which are included, and they use the same screw holes. The connectors are exactly the same as the 4120's.... I replaced 4 of the 4120's in my house and the 9120's work perfect....
350869
I found an interconnect chart from BRK brands that says that the 9120B is compatible with the 4120B. That chart can be found here: http://www.brkelectronics.com/BRK%20images/BRK%20Interconnect%20Chart-Hardwired%20Smokes,%20CO's%20&%20Heat%20Alarms.pdf It did not mention anything about requiring an adapter. It just says it's compatible. So that means that there is no guarantee the mount will be the same or that he pigtail adapter will be the same, although it could be. It simply means that the 9120B and the 4120B can communicate with each other in an interlinked fashion (one alarm sets off all alarms). I would expect that at most, you would need to change the mount and connect up the new pigtail adapter. Even if it's not "plug and play" you should be able to get it to work for you.
2259157
No, but they do offer smoke detectors that you can buy separately that will work with the system.
155414
Yes it is possible I hooked some up to a couple 9 volt batteries like the ones in the smoke detector not the big lattern ones put a switch on it works great in my fishhouse I would recomend getting the end connecters so you can cut and use as you need
2205604
Brand makes no difference within a hardwired 120VAC circuit, when replacing another brand with a BRK model the pigtail (or wires that come with the 120VAC model may have to be changed due to the method of connection to the detector.
1885483
I do not see why it would not work. You will just need to remember which probe is in the 'smoker' port.
382640
There is a test button on each, that you should be able to change.. They still need batteries changed even though they wired.. see if a nice neighbor will change the batteries. most of the smoke detectors have a 10 year life.. so you should be okay on that. they may just need new 9 volts
1918988
J. Hur, This will not be a problem. I have 3 different models connected to my hard wired/ plus battery system. A total of 6. Some with different sensitivity than others. Since they are all made by First Alert / BRK. I haven't had any problem with them for over 21 years now. Plus they all come with a wiring harmess pigtail, should you damage your old one . I have noticed some of the new replacment detectors have replaced the 9-volt battery with two AA . To be honest, I think it's better . I hope this helps you. Ronnie
239015
A new igniter is dirt cheap and looks easy to replace. I bought a spare just in case. Search PNSK002.
1187124
That's the reason I changed mine, they were 12 years old. I paid my electrician to connect these and he did not have to rewire, since this is exactly the same I had. I have no idea what a BRK is. Call first alert and ask them if the plug is standard.
2172317
I am not sure what usi stands for. If your's is already wired for 110 v this smoke and fire detector comes with its own new mounting plate and wire harness which you might have to change but it should work. The one we replaced plugged into the old wire harness.
1737172
That depends on the regulations in your area. Maybe ask your local building inspector. My experience was that the connector for the Kidde smoke detector that was already there did not work well with this unit. There were false alarms. It worked well after the correct connector was wired in, but it does not trigger the other Kidde detectors in the house.
1010479
It sure can, it comes with a regular key. The batteries in mine lasted more than a year too. I think if you change them when ever you change the batteries in your smoke detector, you'll be ok. So far I've had mine more than 3 years, and only changed the batteries twice. Plus it gives you a warning when the voltage starts to get low.
321802
I answered this several weeks ago, and I just checked the site and for some reason Amazon didn't post it; their bad! All of my smoke alarms were hard wired as per code. But if the 9v back up battery in one died, all of the alarms went off; I was up all night one night. Anyway, my old ones were not Kidde, but the Kidde replacements fit perfectly.Go to: www.kidde.com and find their Customer Support 800 #. They were very helpful when I called them. Good luck, and I am sorry my first answer was not posted; I have no idea what happened. navydoc
682515
You can not just replace one of the detectors with this model. All of your smoke detectors must be the same model. Because each one talks to each other. If they are NOT the same, the units will NOT perform effectively. In short, all detectors must be the same model.
1505701
You need to buy the adapter Kidde KA-F, there is a two pack that seems to be cheaper than buying the adapter separately. Otherwise, just rewire the unit base.(It isn't hard, just one more step).
1008166
Yes. My "smoke only" detectors are connected to my "smoke + carbon monoxide" detectors.
869284
Yes it will work Brisa. This is an manufacturer improved flame sensor. It will look slightly different from your original sensor. Turn off A/C breaker to furnace. Remove front panel that has the sight glass that allows you to see the burner manifold. Unplug old sensor. Remove screw. Reverse procedure to install new sensor.