Programming Honeywell 20P for 4 wire Smoke Detector

Old 07-05-18, 07:03 AM
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Programming Honeywell 20P for 4 wire Smoke Detector

Do I use Hardwire type as 0 (EOL) or 2 (NO) for 4 wire smoke and CO detectors with a Honeywell 20P panel on zone 2 and 3?

I know that both Smoke Detectors and CO Detectors are NO, and they use the EOL resistors to be Supervised. When programming the zone in a Honeywell 20P panel, I am using a zone type 9 for the 4 wire smoke detector and a zone type 14 for the CO detector, but do I use a Hardwire type as 0 (EOL) or 2 (NO)? I assume it should be 0 - EOL since I have a resistor across the Detector to ensure it is supervised, but I want to make sure I have the correct Hardwire Type, as I don't want the sensor to go off and short the connect and have the panel show it as a "trouble" instead of an issue.
Old 07-05-18, 10:26 AM
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Smoke Detector and CO zones are _always_ programmed as Hardwire Type 0, EOL.

In your panel programming, "NO" In that context means a zone where the loop is Open-going-closed on alarm, but the panel isn't looking for the 2K Resistor on the loop. Not supervised, in other words. Life Safety type zones are always supervised.

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