Kidde KN-COPP-3 Owner's Manual page 10

Installation
Locations To Avoid
To avoid causing damage to the unit, to provide optimum
protection, and to prevent unnecessary alarms, follow the
directions below where NOT to install this alarm:
It is recommended that you DO NOT install this CO alarm
in garages, kitchens or furnace rooms. Installation in these
areas could lead to nuisance alarms, may expose the sensor
to substances that could damage or contaminate it, or the
alarm may not be heard by persons in other areas of the
home, especially if they are sleeping.
In the garage, vehicle exhaust can contain some carbon
monoxide. These levels are higher when the engine is first
started. Within hours of starting a vehicle and backing it
out of the garage, the levels present over time can activate
the alarm and become a nuisance.
In the kitchen and furnace room, some gas appliances can
emit a short burst of carbon monoxide upon start-up. This
is normal. If your CO alarm is mounted too close to these
appliances, it may alarm often and become a nuisance.
If you must install the unit near a cooking or heating
appliance, install AT LEAST 1.5 m (5') away from the
appliance.
Do not install in excessively dusty, dirty or greasy areas
such as kitchens, garages and furnace rooms. Dust grease
or household chemicals can contaminate or coat the
alarm's sensors, causing the alarm not to operate properly.
Do not obstruct the vents located at the top and bottom of
the alarm. Place the alarm where drapes, furniture or other
objects do not block the flow of air to the vents.
Do not install in dead air spaces, such as peaks of vaulted
ceilings or gabled roofs, where carbon monoxide may not
reach the sensor in time to provide early warning.
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