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Posted by on August 11, 2007, 7:34 am
Recently moved into a 2 year old townhouse and the smoke detectors are
hardwired all on one circuit.
If one goes off, do they all go off?
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Posted by terry on August 11, 2007, 8:21 am
> Recently moved into a 2 year old townhouse and the smoke detectors are
> hardwired all on one circuit.
> If one goes off, do they all go off?
Probably: That now seems to be standard here if there is more than one
inhabited floor.
And some 30 years ago was the rule in all townhouses owned and
operated by our Public Housing Commission.
Mandatory AC operation instead of the usual 9 volt battery operation
was used because children might steal the batteries to operate the
then popular transistor radios!
In a friends extensively and recently renovated (to code) house the
new smoke alarms on each of 3 floors are linked. They appear to be AC
operated with apparently a battery backup?
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Posted by on August 11, 2007, 8:39 am
You can test it by pressing the "TEST" button on one.
If they are linked they will all go off.
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Posted by Big_Jake on August 11, 2007, 9:30 am
On Aug 11, 7:39 am, greg6...@gmail.com wrote:
> You can test it by pressing the "TEST" button on one.
>
> If they are linked they will all go off.
Funny, that's not how my hard wired ones work. You can test them
individually, but setting one off, with smoke will cause them all to
go off. Of course, when one fails and sets them all off, it always
happens around 4 AM... :-)
JK
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Posted by RBM on August 11, 2007, 8:54 am
That depend upon your local codes. Pull one unit down and see if all three
wires connected to it are attached to wires in the outlet box, if so, they
are interconnected
> Recently moved into a 2 year old townhouse and the smoke detectors are
> hardwired all on one circuit.
> If one goes off, do they all go off?
>
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