DSC HS2128 Reference Manual page 249

The following information is for general guidance only and it is recommended that local fire codes and regulations be consulted when locating and
installing smoke alarms.
It is recommended that additional smoke alarms beyond those required for minimum protection be installed. Additional areas that should be
protected include: the basement; bedrooms, especially where smokers sleep; dining rooms; furnace and utility rooms; and any hallways not
protected by the required units. On smooth ceilings, detectors may be spaced 9.1m (30 feet) apart as a guide. Other spacing may be required
depending on ceiling height, air movement, the presence of joists, uninsulated ceilings, etc. Consult National Fire Alarm Code NFPA 72,
CAN/ULC-S553-02 or other appropriate national standards for installation recommendations.
Do not locate smoke detectors at the top of peaked or gabled ceilings; the dead air space in these locations may pre-
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vent the unit from detecting smoke.
Avoid areas with turbulent air flow, such as near doors, fans or windows. Rapid air movement around the detector
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may prevent smoke from entering the unit.
Do not locate detectors in areas of high humidity.
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Do not locate detectors in areas where the temperature rises above 38ºC (100ºF) or falls below 5ºC (41ºF).
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Smoke detectors should always be installed in USA in accordance with Chapter 11 of NFPA 72, the National Fire
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Alarm Code: 11.5.1.1.
Where required by applicable laws, codes, or standards for a specific type of occupancy, approved single- and multiple-station smoke alarms shall
be installed as follows:
1. In all sleeping rooms and guest rooms.
2. Outside of each separate dwelling unit sleeping area, within 6.4 m (21 ft) of any door to a sleeping room, the distance measured along a path of travel.
3. On every level of a dwelling unit, including basements.
4. On every level of a residential board and care occupancy (small facility), including basements and excluding crawl spaces and unfinished attics.
5. In the living area(s) of a guest suite.
6. In the living area(s) of a residential board and care occupancy (small facility).
Figure 1
Figure 3a
Fire Escape Planning
There is often very little time between the detection of a fire and the time it becomes deadly. It is thus very important that a family escape plan be
developed and rehearsed.
1. Every family member should participate in developing the escape plan.
2. Study the possible escape routes from each location within the house. Since many fires occur at night, special attention should be given to the escape routes
from sleeping quarters.
3. Escape from a bedroom must be possible without opening the interior door.
Consider the following when making your escape plans:
Appendix 7: Specifications
Figure 2
Figure 4
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Figure 3