SENTEK ' s single station photoelectric smoke alarm is designed to sense
smoke that comes into the alarm chamber. It does not sense gas, heat or
flame.This smoke alarm is designed to give early warning of developing
fires by giving off the alarm sounds from its built-in buzzer.It can provide
precious time for you and your family to escape before a fire spreads.
However, the smoke alarm makes such pre-warning of fire accident
possible, only if the alarm is located, installed, and maintained properly
as described in this User's Manual.
•
Install a minimum of two alarms in any household.
•
Install a smoke alarm inside every bedroom.
•
Install smoke alarms at both ends of a bedroom hallway if the hallway
is more than 40 feet (12 meters) long.
•
Install a smoke alarm 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 wakeup the sleeper if the door is closed
•
Install basement alarms at the bottom of the basement stairwell.
•
Install second-floor alarms at the top of the first-to-second floor stairwell.
Figure 1: LOCATIONS FOR PLACING SMOKE ALARMS FOR
SINGLE RESIDENCE WITH ONLY ONE SLEEPING AREA
Figure 2: LOCATIONS FOR PLACING SMOKE ALARMS FOR
SINGLE-FLOOR RESIDENCE WITH MORE THAN ONE
SLEEPING AREA
WARNING: This smoke alarm is designed for use in a single residential unit
only, which means that it should be used inside a single family home or
apartment. It is not meant to be used in lobbies, hallways, basements, or
another apartment in multi-family buildings, unless there are already working
alarms in each family unit. Smoke alarms, placed in common areas outside
of the individual living unit, such as porches or in hallways, may not provide
early warning to residents. In multi-family buildings, each family living unit
should set up its own alarms.
WARNING: This alarm is not meant to be used in non-residential buildings.
Warehouses, industrial or commercial buildings, and special purpose
non-residential buildings require special fire detection and alarm systems.
This alarm alone is not a suitable substitute for complete fire detection
systems for places where many people live or work, such as hotels or motels.
The same is true of dormitories, hospitals, nursing homes or group homes of
any kind, even if they were once single family homes. Please refer NFPA 101,
requirements for fire protection in buildings not defined as "households".
Smoke alarms 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 alarms should be installed
in all rooms, halls, storage areas, basements, and attics in each family living
unit. Minimum coverage is one alarm on each floor and one in each sleeping
area and attics in each family living unit. Minimum coverage is one alarm on
each floor and one in each sleeping area.
Here, we have useful tips for you
：
•
Install a smoke alarm in the hallway outside every separate bedroom
area, as shown in Figure 1. Two alarms are required in homes with two
bedroom areas, as shown in Figure 2.
•
Install a smoke alarm on every floor of a multi-floor home or apartment,
as shown in Figure 3.
LOCATIONS TO INSTALL YOU SMOKE ALARMS
INTRODUCTION
Figure 3: LOCATION FOR PLACING
SMOKE ALARMS FOR A
MULTI-FLOOR RESIDENCE
LOCATIONS NOT TO INSTALL YOUR SMOKE ALARMS
Be sure no door or other obstruction blocks the path of smoke to the
alarm.
•
Install additional alarms in your living room, dining room, family room,
attic,utility and storage rooms.
•
Install smoke alarms as close to the center of the ceiling as possible. If
this is not practical, put the alarm on the ceiling, no closer than 4 inches
(10 cm) from any wall or corner, as shown in Figure 4.
•
If ceiling mounting is not possible and wall mounting is permitted by your
local and state codes, put wall-mounted alarms between 4 and 6 inches
(10~15 cm) from the ceiling, also see Figure 4.
•
If some of your rooms have sloped, peaked, or gabled ceilings, try to
mount alarms 3 feet (0.9 meter) measured horizontally from the highest
point of the ceiling as shown in Figure 5.
Figure 4: RECOMMENDED
BEST AND ACCEPTABLE
LOCATIONS TO MOUNT
SMOKE ALARMS
Figure 5: RECOMMENDED
LOCATION TO MOUNT
SMOKE ALARMS IN
ROOMS WITH SLOPED,
GABLED, OR PEAKEDCEILING
included in 2-4.1.1 above. However, the use of additional alarms remains
the option of the householder. " We recommend complete coverage and
use of additional smoke alarms.
• In damp or very humid areas, or near bathrooms with showers. Moisture
in humid air can enter the sensing chamber, then turns into droplets
upon cooling, which can cause nuisance alarms. Install smoke alarms
"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 alarm installed in each separate sleeping area (in the vicinity, but
outside of the bedrooms), and (2) Heat or smoke alarms 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 alarms 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 alarms required
by this standard.. It is recommended that the householder consider the use
of additional smoke alarms for increased protection for those areas separated
by a door from the areas protected by the required smoke alarms 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
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
alarms 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 alarm. Thereby, install smoke
alarms 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 alarm on an inside wall. If the
walls or ceiling are unusually hot or cold, then install the alarm on an inside
wall. Install one alarm as close to the sleeping area as possible for minimum
security, or install one alarm in each room for security. Before you install
any alarm, please read the following section on "LOCATIONS NOT TO
INSTALL YOUR SMOKE ALARMS".
LOCATIONS TO INSTALL YOUR SMOKE ALARMS
IN MOBILE HOMES AND RVs
Figure 6: RECOMMENDED
SMOKE ALARM LOCATIONS
TO AVOID AIR STREAMS WITH
CAUTION
(As required by State Fire Marshall)
Nuisance alarms take place when smoke alarms are installed where they
will not work properly. To avoid nuisance alarms, do not install smoke alarms
in the following situations:
•
Combustion particles are the by-products of something that is burning
Thus,in or near areas where combustion particles are present you do
not install the smoke alarms to avoid nuisance alarms, such as kitchens
with few windows or poor ventilation, garages where there may be
vehicle exhaust, near furnaces, hot water heaters, and space heaters.
•
Do not install smoke alarms less than 20 feet (6 meters) away from places
where combustion particles are normally present, like kitchens. If a
20-foot distance is not possible, e.g. in a mobile home, try to install the
alarm as far away from the combustion particles as possible, preferably
on the wall. To prevent nuisance alarm alarms, provide good ventilation
in such places.
IMPORTANT :
For any reason, do not disable the alarm to avoid
nuisance alarms.
• When air streams passing by kitchens, the way how an alarm can sense
combustion particles in normal air-flow paths is graphically shown in
Figure 6, which indicates the correct and incorrect
smoke alarm locations concerning this problem.
R
SINGLE STATION PHOTOELETRIC
SMOKE ALARM
SK50
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LOCATIONS TO INSTALL YOUR SMOKE ALARMS IN MOBILE
ALARMS
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TABLE OF CONTENTS
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ALARMS
ALARMS
ALARMS
SILENCE FUNCTION
ALARMS
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