Visonic Inc. MCT423 Manual De Usuario

Descargar
Página de 8
DE3640 
 
 
4. SMOKE DETECTOR INSTALLATION OVERVIEW 
4.1 Where to Install Smoke Detectors 
Smoke detectors should be installed in accordance with the 
NFPA Standard 74 (National Fire Protection Association, 
Batterymarch Park, Quincy, MA 02169). For complete coverage 
in residential units, smoke detectors should be installed in all 
rooms, halls, storage areas, basements and attics in each family 
living unit. Minimum coverage is one detector on each floor and 
one in each sleeping area. Here are a few useful tips for you: 
• 
Install a smoke detector in the hallway outside every separate 
bedroom area, as in Figure 10. Two detectors are required in 
homes with two bedroom areas, as in Figure 11. 
• 
Install a smoke detector on every floor of a multi-floor home or 
apartment, as shown in Figure 12. 
• 
Install a minimum of two detectors in any household. 
• 
Install a smoke detector inside every bedroom. 
• 
Install smoke detectors at both ends of a bedroom hallway if 
the hallway is more than 12 meters (40 feet) long. 
 
 
Figure 10. Locations for placing smoke detectors in a single 
residence with only one sleeping area 
• 
Install a smoke detector inside every room where one sleeps 
with the door partly or completely closed, since smoke could be 
blocked by the closed door and a hallway alarm may not wake 
up the sleeper if the door is closed. 
 
Figure 11.  Locations for Placing Smoke Detectors in Single-
Floor Residence with More than One Sleeping Area. 
 
Figure 12. Placing Smoke Detectors in a Multi-Floor Residence 
•  Install basement detectors at  the bottom of the basement 
stairwell. 
•  Install second-floor detectors at the top of the first-to-second 
floor stairwell. 
•  Be sure no door or other obstruction blocks the path of smoke 
to the detector. 
•  Install additional detectors in your living room, dining room, 
family room, attic, utility and storage rooms. 
•  Install smoke detectors as close to the center of the ceiling as 
possible. If this is not practical, put the detector on the ceiling, 
at least 10 cm (4 inches) away from any wall or corner, as 
shown in Figure 13. 
•  If ceiling mounting is not possible and wall mounting is 
permitted by your local and state codes, put wall-mounted 
detectors between 10  - 15 cm (4  - 6 inches) from the ceiling, 
also see Figure 13. 
•  If some of your rooms have sloped, peaked, or gabled ceilings, 
try to mount detectors 0.9 meter (3 feet) measured horizontally 
from the highest point of the ceiling as shown in Figure 14. 
 
Figure 13. Recommended Best  
and Acceptable Locations to  
Mount Smoke Detectors
 
 
 
Figure 14. Recommended  
Location to Mount Smoke  
Detectors in Rooms with 
Sloped, Gabled or Peaked 
Ceiling
 
 
 
CAUTION (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 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 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