Firex & Kidde smoke compatability

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On a closed thread of a similar name you posted a great response:


"Firex and Kidde have received Underwriters Laboratory (UL) listing to interconnect certain Firex smoke alarms to certain Kidde smoke and smoke/CO alarms. Firex alarms of models ADC (4518 series) and FADC (4618 and 5000 series) can be interconnected with Kidde smoke alarms of models i12020, i12040, i12060, i12080, 1235, 1275, 1276, 1285, PE120, PI2000, RF-SM-AC/DC and combination smoke/CO alarm model KN-COSM-IB (part number 900-0114).

The listing applies only to the models in the above paragraph, and not to any other models. Some examples of models that are NOT listed for Firex/Kidde interconnection are the Firex model PAD (4480), FADCP (4490), G-6 (406), FXW-R (428), GC (41216), PG (484), ADH (5700), 499 relay, 501 relay, COE (10000 series), FADCM (12000 series), and Kidde models 1296, HD135F, and KN-COB-IC (900-0120)."

:? Unfortunately, It does include Firex model 4580 (FAPD). I am attempting to replace one of six detectors that are failing with Kidde model P12040 (PE120). After reviewing all available data I find this (kidde) model has some of the Firex devices listed in common with devices in both of your lists, non-compatible & compatible. I have attempted to contact Kidde at 1-800-880-6788, only to get a busy tone on many attempts, worst tech support ever.

Any thoughts on the matter, other than replace all six, they are not that old. By the way, keep up the good work :thumbsup: & Happy Holidays.
 
Kidde finally answers...

Kidde finally answers...

I spoke with Kidde who tells me their model 12040 is not compatible with the Firex 4580. He suggested not using the interconnect wire (red wire) until I need to replace all of the other devices :happysad:. I appreciate his help but, liability wise, that is bad advice. Looks like they all must go.
 

Dennis Alwon

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Location
Chapel Hill, NC
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Retired Electrical Contractor
I agree they should be replaced but I have tried to use different brands and tested them. They worked fine. I think it was - I thought kiddie & firex.
 
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