1. Information About Carbon Monoxide
Conditions That Can Produce Carbon Monoxide
The following conditions can result in transient CO situations:
• Excessive spillage or reverse venting of fuel-burning appliances caused by
outdoor ambient conditions, such as, wind direction and/or velocity,
including high gusts of wind, heavy air in the vent pipes (cold/humid air
with extended periods between cycles).
• Negative pressure resulting from the use of exhaust fans.
• Simultaneous operation of several fuel-burning appliances competing for
limited internal air.
• Vent pipe connections vibrating loose from clothes dryers, furnaces, or
water heaters.
• Obstructions in, or unconventional, vent pipe designs which can amplify
the above situations.
• Extended operation of unvented fuel-burning devices (range, oven,
fireplace, etc.).
• Temperature inversions which can trap exhaust gases near the ground.
• Vehicle idling in an open or closed garage, or near a home.
To be safe, know the possible sources of CO in your home. Keep fuel-
burning appliances and their chimneys and vents in good working condition.
Learn the early symptoms of exposure, and if you suspect CO poisoning,
move outside to fresh air and get emergency help. Your first line of defense
is an annual inspection and regular maintenance of your appliances. Contact
a licensed contractor or call your local utility company for assistance.
Information About Carbon Monoxide Alarms –
What They Can and Cannot Do:
CO alarms provide early warning of the presence of CO, usually before a
healthy adult would experience symptoms. This early warning is possible,
however, only if your CO alarm is located, installed and maintained as
described in this guide.
Because carbon monoxide is a cumulative poison, long-term exposures to low
levels may cause symptoms, as well as short-term exposures to high levels.
This Kidde unit has a time-weighted alarm – the higher the level of CO
present, the sooner the alarm will be triggered.
This CO alarm can only warn you of the presence of CO. It does not prevent
CO from occurring, nor can it solve an existing CO problem. If your unit has
alarmed and you’ve provided ventilation by leaving your windows and doors
open, the CO buildup may have dissipated by the time help responds.
Although your problem may appear to be temporarily solved, it’s crucial that
the source of the CO is determined and that the appropriate repairs are made.
This CO alarm is designed to act as a monitor; it is not designed for use as a
short-term testing device to perform a quick check for the presence of CO.
2549-7201-01_EN.qxp__ 15-6-1 下午1:37 页 7
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