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Hangzhou Hikvision Digital Technology CO.,Ltd. No.555 Qianmo Road, Binjiang District, Hangzhou 310052, China
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Install additional smoke detectors in your living room, dining room, family room, attic, utility and storage rooms.
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Install smoke detectors as close to the center of the ceiling as possible. If this is not practical, put the detector on the ceiling, no closer than 20
inches (50 cm) from any wall or corner, as shown in Figure 4.
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If ceiling mounting is not possible and wall mounting is permitted by your local and state codes, put wall-mounted detectors between 4 and 6 inches
(10 ~ 15 cm) from the ceiling, also see Figure 4.
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If some of your rooms have sloped, peaked, or gabled ceilings. The distance between the peak and the mounting point of the smoke detector on
peaked ceilings (>20°) is minimum 0.5 m to maximum 1 m measured along the peaked ceiling as shown in Figure 5.
Figure 4 Recommended best and acceptable
locations to mount smoke detectors
Figure 5 Recommended location to mount smoke
detectors in rooms with sloped, gabled, or peaked ceiling
Figure 6 Recommended smoke detectors locations to
avoid air streams with combustion particles
Locations Not To Install Detectors
Nuisance alarms take place when smoke detectors are installed where they will not work properly. To avoid nuisance alarms, do not install smoke
detectors in the following situations:
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Combustion particles are the by-products of something that is burning. Thus, in or near areas where combustion particles are present you do not
install the smoke detectors to avoid nuisance alarms, such as kitchens with few windows or poor ventilation, garages where there may be vehicle
exhaust, near furnaces, hot water heaters, and space heaters.
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Do not install smoke detectors less than 20 feet (6 meters) away from places where combustion particles are normally present, like kitchens. If a 20-
foot distance is not possible, e.g. in a mobile home, try to install the detector as far away from the combustion particles as possible, preferably on
the wall. To prevent nuisance alarm detectors, provide good ventilation in such places.
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When air streams passing by kitchens, the way how an smoke detector can sense combustion particles in normal air-flow paths is graphically shown
in Figure 6, which indicates the correct and incorrect smoke detector locations concerning this problem.
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In damp or very humid areas, or near bathrooms with showers. Moisture in humid air can enter the sensing chamber, then turns into droplets upon
cooling, which can cause nuisance alarms. Install smokedetectors at least 10 feet (3 meters) away from bathrooms.
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In very dusty or dirty areas, dirt and dust can build up on the detector’s sensing chamber, to make it overly sensitive. Additionally, dust or dirt can
block openings to the sensing chamber and keep the detector from sensing smoke.
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Near fresh air vents or very drafty areas like air conditioners, heaters or fans, fresh air vents and drafts can drive smoke away from smoke detectors.
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In insect-infested areas. If insects enter an alarm’s sensing chamber, they may cause a nuisance alarm. Where bugs are a problem, get rid of them
before putting up an alarm.
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Near fluorescent lights, electrical “noise” from fluorescent lights may cause nuisance alarms. Install smoke detectors at least 5 feet (1.5 meters) from
such lights.
WARNING
: Never remove battery from Smoke detector to stop a nuisance alarm. Open a window or fan the air around the Smoke detector to get rid of
the smoke. The alarm will turn itself off when the smoke is gone. If nuisance alarms persist, attempt to clean the Smoke detector as described in this
User’s Manual.
WARNING
: Do not stand close to the smoke detector when the alarm is sounding. The alarm is loud in order to wake you in an emergency. Too much
exposure to the horn at close range may be harmful to your hearing.