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A P P E N D I X A
Experience has shown that all hostile fires in family living units generate smoke to a greater or lesser extent. Experiments
using typical fires in family living units indicate that detectable quantities of smoke precede detectable levels of heat
in most cases. In existing homes, NFPA Standard 72 requires that a smoke detector be installed outside each sleeping
area and on each additional story of the family unit.
The following information is for general guidance only and it is recommended that NFPA Standard 72 (
National Fire
Protection Association, One Batterymarch Park, Quincy MA 02269
) be consulted and that the smoke detector
manufacturer’s literature be used for detailed installation instructions.
It is recommended that additional smoke detectors beyond those required be installed for increased protection. The
added areas include: basement, bedrooms, dining rooms, furnace room, utility room and hallways not protected by the
required detectors.
Figure 1: A smoke detector should be located between the
sleeping area and the rest of the family unit.
Figure 3: A smoke detector should be located on each story of the
living unit.
Figure 2: In the family living units with more than one sleeping
area, a smoke detector should be located to protect each
sleeping area.
Figure 4: Smoke Detector mounting - “Dead” Air Space. The
smoke from a fire generally rises to the ceiling, spreads out
across the ceiling surface and begins to bank down from the
ceiling. The corner where the ceiling and wall meet is an air space
into which the smoke may have difficulty penetrating. In most
fires, this “dead” air space measures about 4 in. (0.1m) along the
ceiling from the corner and about 4 in. (0.1m) down the wall as
shown in Figure 4. Detectors should not be placed in the dead”
air space.
Programming Worksheets
T
he Smoke Detector is designed to use
Eveready Energizer E91 Alkaline Batteries.
Do not use other brands of batteries with the
Smoke Detector. Using brands other than the
Eveready Energizer will void UL approval, and
may affect the system’s operation.
NEVER
HERE
Acceptable
here
Top of detector
acceptable here
12"
(0.3m)
Max.
4"
(0.1m)
Max.
4"
(0.1m)
Ceiling
Wall
NOTE: Measurements shown are to
the closest edge of the detector.
Bedroom
Bedroom
Basement
Living
Room
Dining
Room
Bedroom
Bedroom
Bedroom
Living Room
Kitchen
Bedroom
Bedroom
Bedroom
Living
Room
Kitchen
Dining
Room
Family Room
