Silent Call SD4-SS - Manual (Page 13)

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• In damp or very humid areas, or next to bathrooms with showers. The
moisture in humid air can enter the sensing chamber as water vapor, and
will cool and condense into droplets that cause a nuisance alarm. Install
detectors at least 5 feet (1.5 meters) away from bathrooms.
• In very dusty or dirty areas. Dust and dirt can build up on the detector
sensing chamber and make it overly sensitive, or can block openings to
the sensing chamber and keep the detector from sensing smoke.
• Near fresh air inlets or returns or excessively drafty areas. Air
conditioners, heaters, fans, and fresh air intakes and returns can drive
smoke away from smoke detectors, making the detectors less effective.
• In dead air spaces at the top of a peaked roof or in the corners between
ceilings and walls. Dead air may prevent smoke from reaching the
detector. See figures 4 and 5 for recommended mounting location.
• In insect-infested areas. If insects enter a detector’s sensing chamber
they may cause a nuisance alarm. Get rid of the bugs before installing
detectors where bugs are a problem.
• Near florescent light fixtures. Electrical “noise” from nearby florescent
light fixtures may cause a nuisance alarm. Install detectors at least 10
feet (3 meters) away from such light fixtures.