Do NOT locate this smoke/CO alarm:
•Where the temperatures are regularly below 40˚ F (4˚C) or above 100˚ F (38˚ C) including unheated buildings, outdoor rooms, porches, or unfinished attics or basements. Extreme temperatures may shorten component or battery life.
•In insect infested areas. Insects can clog the openings to the sensing chamber.
•Less than 12 inches (305 mm) away from fluorescent lights. Electrical “noise” can interfere with the sensor.
Avoiding Dead Air Spaces
“Dead air” spaces may prevent smoke from reaching the smoke alarm. To avoid dead air spaces, follow installation recommendations:
On ceilings, install smoke alarms as close to the center of the ceiling as possible. If this is not possible, install the smoke alarm at least 4 inches (102 mm) from the wall or corner.
On a peaked, gabled, or cathedral ceiling,install the first smoke alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured horizontally. Additional smoke alarms may be required depending on the length, angle, etc. of the ceiling's slope. Refer to NFPA 72 for details on requirements for sloped or peaked ceilings.
For wall mounting (if allowed by building codes), the smoke alarm should be placed between 4 inches (102 mm) and
12 inches (305 mm) from the wall/ceiling line, below typical “dead air” spaces.
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