Appendix B: Transmitter Installation
CommPact Installation Manual
110
Figure B- 23: Location for placing
smoke detectors for a multi-floor
residence
Figure B- 24: Recommended best and
acceptable locations to mount smoke
detectors
Figure B- 25:
Recommended location to
mount smoke detectors in
rooms with sloped, gabled,
or peaked ceiling
(As required by the California State Fire Marshall)
“Early warning fire detection is best achieved by the installation of fire detection
equipment in all rooms and areas of the household as follows: (1) A smoke detector
installed in each separate sleeping area (in the vicinity, but outside of the bedrooms), and
(2) Heat or smoke detectors in the living rooms, dining rooms, bedrooms, kitchens,
hallways, attics, furnace rooms, closets, utility and, storage rooms, basements and
attached garages.”
For your information, NFPA Standard 74, Section 2-4 reads as follows:
“2-4.1.1 Smoke detectors shall be installed outside of each separate sleeping area in the
immediate vicinity of the bedrooms and on each additional story of the family living unit
including basements and excluding crawl spaces and unfinished attics.
The provisions of 2-4.1.1 represent the minimum number of detectors required by this
standard. It is recommended that the householder consider the use of additional smoke
detectors for increased protection for those areas separated by a door from the areas
protected by the required smoke detectors under 2-4.1.1 above. The recommended
additional areas are living room, dining room, bedroom(s), kitchen, attic (finished or
unfinished), furnace rooms, utility room, basement, integral or attached garage, and
hallways not included in 2-4.1.1 above. However, the use of additional detectors remains
the option of the householder.” We recommend complete coverage and use of additional
smoke detectors.
Where to Install Your Smoke Detectors in Mobile Homes and RVs
Mobile homes and RVs built after about 1978 were designed and insulated to be energy-efficient. In
mobile homes and RVs built after 1978, smoke detectors should be installed as described above.
Older mobile homes and RVs may have little or no insulation compared to current standards.
Outside walls and roofs are often made of non-insulated metal, which can transfer thermal energy
flow from outdoors. This makes the air right next to them hotter or colder than the rest of the inside
air. These layers of hotter or colder air can keep smoke from reaching a smoke detector. Thereby,
install smoke detectors in such units only on inside walls. Place them between 4 and 6 inches (10 ~
15 cm) from the ceiling. If you are not sure how much insulation is in your mobile home or RV, then
install the detector on an inside wall. If the walls or ceiling are unusually hot or cold, then install the
detector on an inside wall. Install one detector as close to the sleeping area as possible for minimum
security, or install one detector in each room for security. Before you install any detector, please
read the following section on “Where not to install your smoke detectors”.
Summary of Contents for Control system
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