Re: heat detector compatibility question with Radionics panel

["Robert L Bass" <robertbass1@xxxxxxxxxxx>]

> I see that they list this info for smoke detectors
> but nothing about compatibility for heat detectors.

Virtually any heat detector will work with that system.  Heats have a dry contact output, like a light switch.  When they detect too
much heat or, in the case of a rate-of-rise sensor, when the temperature is rising very rapidly, they close a circuit.  The alarm
doesn't care what kind of device closes the circuit -- only that it has closed.

BTW, technically, the circuit is always closed.  There's a resistor at the end of the circuit which allows a trickle of current to
flow all the time.  If the current stops flowing due to a cut wire or a device being disconnected, the alarm system will emit a
"trouble" tone and/or notify the central monitoring station of the problem.  When the detector senses fire the circuit is shorted,
allowing lots of current to flow.  The alarm senses this and emits a fire alarm (strobes, siren, bell or buzzers, depending on
what's installed.  If monitored a signal is sent to the station as well.

--

Regards,
Robert L Bass

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