Re: My Wiring 3 Kidde Smokes Together Problem

[Crash Gordon® <NONE@xxxxxxxx>]

Weird.

However, not to long ago I measured 2-4 volts AC on disonnected alarm =
wires...RFI from nearby AM radio towers..it was the only thing we could =
figure as we were measuring it with all mains off...no juice to the =
house at all.=20

Not saying this is your case.

Sorry couldn't be of more  help.

"Robert11" <rgsrose@xxxxxxxxx> wrote in message =
news:ZZOdnexdgZYEAPjfRVn-1Q@xxxxxxxxxxxxxx
> Hi,
>=20
> Yes sir, the reds were hooked up to the old detectors.
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> The old detectors were Rittenhouse, which I believe used to be a part =
of=20
> Emerson.
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> From what I can tell from the old info molded into the case, the=20
> interconnect wire ran
> on 110 V AC for them.
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> The new Kidde's use 9V dc to trigger each other, apparently.
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> The 2 V dc relative to the white neutral that I am seeing is with the =
red=20
> interconnect wire disconnected from the old ones, and also =
disconnected from=20
> the new smoke detectors, so the voltage on the wire should, of course, =
be 0=20
> V.  Should just be "floating," but apparently isn't.
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> Bob
> ---------
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> "Crash Gordon=AE" <NONE@xxxxxxxx> wrote in message=20
> news:8jg9e.75$UP5.1472@xxxxxxxxxxxxxxxxxx
> Were the reds hooked up to the old detectors?
> I'm wondering that maybe the old smokes were retro-fitted on a =
lighting=20
> circuit to begin with. 30 years ago...smokes weren't required in many =
areas.
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>=20
> "Robert11" <rgsrose@xxxxxxxxx> wrote in message=20
> news:aZ6dnf7REaBdEPjfRVn-vA@xxxxxxxxxxxxxx
> > Hi,
> >
> > This relates to the problem I've been having in getting 3 new Kidde =
PI=20
> > 2000
> > smoke dectors to talk to each other.  They replaced 3 very old =
detectors
> > which were apparently wired together also. As described in a =
previous=20
> > post,
> > when my new ones were hooked up to
> > the third wire (red) they all just cycle on and off.
> >
> > So, I guess there are two main possibilities, as folks have =
mentioned:
> >
> > a. that there is perhaps another detector on the line somewhere that =
I am
> > not
> > aware of.  But, I really looked all over, including the attic, and =
cannot
> > find any other.
> > Still, it is just about impossible to trace the wires, and maybe =
there is
> > one that was plastered over, or... ?
> > 30 yr old house, so anything is possible.
> >
> > b.  I disconnected the red wires from each detector to the red=20
> > interconnect
> > wire interconnecting the 3 new detectors, and measured the voltage=20
> > appearing
> > between the interconnect wire and the white neutral.
> > Couldn't believe it.  Seems there is about 2 volts AC appearing.
> >
> > Of all the weird voltages, this is a tough one.
> >
> > It certainly isn't inductive coupling, but might be "leakage" from
> > "something"
> >
> > Was wondering if any one might have any thoughts on this.
> > What uses 2 V AC ?
> >
> > Sure has me stumped.  Becoming an intellectual challenge by now.
> >
> > Haven't looked into this yet, but just had the thought that perhaps =
the
> > thermal safety
> > cutout (that little downward facing wheel coming out of a 4" gang =
boxy the
> > furnace) on the power to the gas forced hot air furnace we have, is
> > connected back to the alarms to indicate if it is ever tripped.
> > Perhaps leakage thru this if wired in to the detectors ?  Anyone =
here ever
> > run across anything like this ?
> >
> > Is this something, or a wiring scheme, they may have used =
way-back-when,
> > or not very likely ?
> >
> > Thanks,
> > Bob
> >
> >
> >=20
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>