Re: Replacing Radionics with Vista 20P

[Frank Kurz <tech@xxxxxxxxxxxxx>]

On 29/01/2011 6:39 PM, mleuck wrote:
> On Jan 29, 7:11 pm, Frank Kurz<t...@xxxxxxxxxxxxx>  wrote:
>> On 21/01/2011 6:49 PM, Christopher Glaeser wrote:
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>>> The Radionics uses 2K EOLR for fire and 1K EOLR for alarm. The Vista
>>> uses 2K for both fire and alarm. I replaced all the 1K alarm EOLRs with
>>> 2K EOLRs and all the alarm sensors are now functioning on the Vista.
>>
>>> The Radionics D2112 uses powered two-wire 2K EOLR on the fire zone, so I
>>> did not have to replace that resistor. However, the Vista 20P panel
>>> still indicates a fault on the fire zone (The Radionics did not report a
>>> fault prior to removal). I have checked polatiry (positive on 8,
>>> negative on 9) and tested voltages at the panel, at the smoke, and
>>> across the EOLR. All are 13+ VDC. The resistance of the fire circuit is 2K.
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>>> There are two fire devices wired to the panel. One is a System Sensor
>>> 2100TD smoke and the other is a Potter VSR-SF waterflow alarm.
>>> Four-conductor fire wire runs from the panel to each fire device,
>>> red/black powered outgoing and blue/brown return. The return pair of the
>>> first is wired to the outgoing of the second. The second return has a 2K
>>> EOLR.
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>>> Question: Are these two fire devices compatible with the Vista 20P?
>>
>>> Best,
>>> Christopher
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>> I seem to recall you have to cut a jumper in the Vista 20 for zone 1 to
>> be a supervised fire circuit.  Mind you, my memory could be faulty.  :-)

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> That supervises the siren circuit

YKB.  What I said...  Memory's not what it used to be...  :-)

--
Frank Kurz
www.firetechs.net