Kamis, 10 Oktober 2013

on a nighthawk detector what numbers are considered unsafe?

carbon monoxide detectors code on Carbon Monoxide (CO) is a silent, invisible, odourless, tasteless gas ...
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Nay


We have a Nighthawk carbon monoxide detector in our home. The number 8 just recently appeared on the screen. Should we be concerned? No alarm has gone off.


Answer
I just installed one of those the other day and I would have sworn that 8 was an error code that I got and that you just have to unplug the detector and plug it back in. But I just looked at the manual online and there is no mention of 8 being an error code. It does display "888" for a few seconds when you fist plug it in.

If it is steadily displaying an 8 then that is the level of carbon monoxide that it has detected since last reset. On the one hand that is a very low level and is safe - some references put the maximum continuous exposure level at 35 ppm and some say 50 ppm. Either way, 8 ppm is very low.

But then you have to wonder where the 8 ppm came from and if it is from a leak than may get worse over time. Having a CO detector is a good thing, it will make plenty of noise if the levels ever get to the point that you need to take action.

You could call Kidde at 800-880-6788 and talk to them if you want some reassurance.

The law on Carbon Monoxide and Smoke Detectors in my house?




Chippewa


I am purchasing a single family home that was built in 1974. The previous owner took their battery operated smoke detectors.
Can anyone tell me what the Maine law is for having these? Obviously I need smoke detectors. Do I need Carbon Monoxide detectors as well? Do these need to be hard wired in? How many do I need of each?



Answer
Smoke detectors required. The owner shall properly install, or cause to be properly installed, smoke detectors in accordance with the National Electric Code and the manufacturer's requirements. In single-family dwellings, at least one smoke detector, which may be photoelectric, ionization or a combination of both, must be installed in each area within, or giving access to, bedrooms. These smoke detectors may be powered by the electrical service in the dwelling, by battery or by a combination of both. Any smoke detector located within 20 feet of a kitchen or a bathroom containing a tub or shower must be a photoelectric-type smoke detector.

The CO detectors are a good idea but I believe only required in multi-family dwellings. Check around the link.




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