System Sensor 2012H User Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
1012 Ionization and 2012 Photoelectronic
Smoke Detectors
Smoke Detector Description
Smoke detectors are designed to provide early warning of developing fires
at a reasonable cost. They monitor the air and can sense smoke and can
provide precious minutes for you and your family to escape before a fire
spreads. Early warning fire detection is best achieved by the installation of
fire detection equipment in all rooms and areas of the household.
Model 1012 is a low-voltage ionization-type smoke detector. Model 2012 is
a low-voltage photoelectronic-type smoke detector. The detector is designed for open area protection in a residential building. Each detector has
a built-in relay which may be used to activate auxiliary devices such as
bells, horns, and door closers. The relay contacts automatically close eight
(8) seconds after the detector goes into alarm, and automatically resets
approximately five (5) seconds after the alarm stops. In addition, these
detectors can be interconnected, within one household, for a system of up
to twelve (12) smoke detectors per household. This way, when one smoke
detector sounds its alarm horn, it will cause all of the other connected
smoke detectors within the household to sound their alarm horns as well.
Installation in Australia Only
The installation temperature range for Australia is 5° to 45°C and has
been tested per the Australian Standard. Ignore installation temperatures
specified for all other applications when installing detectors in Australia.
Detectors should be installed by qualified technicians. Installation of a
main connected power supply unit must be performed by qualified electricians only. Ignore the power requirements in "Smoke Detector Requirements" listed below, as these apply to installation in the USA.
The primary
power should be provided by a power limited, supervised, panel type system. A rechargeable battery is required as a backup to the external power
supply in case of a mains failure. In standby operation, the
power limited
backup battery (fully charged) must be capable of providing uninterrupted power for at least 7 days to the system and all smoke alarms before
the panel gives the required low-battery signal. When the low-battery signal is given, the battery should be capable of providing power for another
7 days, after which the backup battery should have enough energy left to
allow a 4-minute alarm signal to be given by all connected smoke alarms.
• Smoke detectors will not sense a fire if the smoke does not reach
the sensor. In order for a smoke detector to sense smoke, it must be
installed in the immediate vicinity of the fire. In addition, smoke from
fires in chimneys, in walls, on roofs, in remote parts of the building, or
on another level from where the smoke detector is located, may not
reach the smoke detector quickly enough for occupants to escape unharmed. For this reason, installer shall install smoke detectors on
every level, in every sleeping area, and in every bedroom of the
household.
• Smoke detectors may not be heard. The alarm horn in this smoke de-
tector meets or exceeds current Underwriter's Laboratories standards.
However, if the smoke detector is not located in the same room as the
occupant, or if it is blocked by a closed door or normal noise, the
alarm horn may not be heard. In addition, sound sleepers, or persons
who are under the influence of drugs or alcohol may not hear the
alarm or be able to react to it. Therefore, locate this smoke detector,
which has a sounder rated at 85 dB at 10 feet, on every level, in every sleeping area, and in every bedroom of the household.
• In general, detectors may not always warn you about fires caused by
carelessness and safety hazards like smoking in bed, violent explosions, escaping gas, improper storage of flammable materials, overloaded electrical circuits, children playing with matches, or arson.
• Smoke detectors are not fool-proof. Like all electronic devices, smoke
detectors have limitations. No type of smoke detector can sense every kind of fire every time. In addition, smoke from slow, smoldering fires rises slowly and may not reach the smoke detector until
actual flame breaks out. This type of smoke may not reach the
smoke detector in time for occupants to escape unharmed.
• Smoke detectors are not a substitute for life or property insurance.
Though smoke detectors have been responsible for saving many lives,
they are not warranted or implied to protect lives or property in the
event of a fire.
• Smoke detectors have a limited life. They contain many parts. Any of
these parts could fail at any time. Repair or replace the smoke detector
immediately if the alarm horn does not sound when tested. Do not, in
any case, use a smoke detector for more than 10 years from the date
of original installation.
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
Smoke Detector Power Requirements (USA)
This smoke detector will not work without power.
This smoke detector is
only U.L. listed to be powered by System Sensor Part No. A77-727-01 (12volt DC power supply). The A77-727-01 must be permanently connected
to the building's 120-volt AC electrical supply per code. The A77-727-01
will not power the smoke detector if the AC power is cut off for any rea-
Where to Install Smoke Detectors
Warning: As a minimum requirement, smoke detectors must be installed
in accordance with the National Fire Protection Agency (NFPA) Standard
72 which defines the standards for the National Fire Alarm Code (National
Fire Protection Association, Batterymarch Park, MA 02269-9101). In addi-
tion, observe all local and national building and electrical codes.
son. The 12-volt DC power supply will only power the detector when 120volt AC power is present—it is not a power back-up source.
Proper Detector Location:
Figure 1: Recommended smoke detector protection for single-
Power input rating to the detector is 12VDC @ 0.02 amps. Input power to
the A77-727-01 power supply must be from a 24-hour 120V AC 60HZ circuit which cannot be turned off by a switch. Power supply and detector
floor residence with only one sleeping area
DINING ROOM KITCHEN BEDROOM BEDROOM
installation must conform to the electrical codes in your area and Article 760 of the National Electrical Code. It is recommended that wiring
be performed by a licensed electrician.
Smoke Detector Limitations
• This smoke detector is designed for residential use only. System
Sensor does not advise the use of this detector in multiple detector systems monitored by a central control. This detector is self-restoring and
SMOKE DETECTORS FOR MINIMUM PROTECTION
SMOKE DETECTORS FOR MORE PROTECTION AND
REQUIRED IN NEW CONSTRUCTION
BEDROOMLIVING ROOM
A78-1171-01
does not lock into an alarm condition.
D100-55-00 1 I56-733-10
Figure 2: Recommended smoke detector protection for singlefloor residence with more than one sleeping area:
BEDROOM
KITCHENFAMILY ROOM
BEDROOM
DINING
ROOM
LIVING ROOM
BEDROOM
SMOKE DETECTORS FOR
MINIMUM PROTECTION
SMOKE DETECTORS FOR
MORE PROTECTION AND
REQUIRED IN NEW CONSTRUCTION
A78-1171-02
NFPA 72, Chapter 2, Section 2-2.1.1.1 states as follows: “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
• Rooms or areas that do not have smooth ceilings, or which have short,
transom-type walls coming down from the ceiling require additional
detectors.
• Install second-floor detectors on the ceiling 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.
• In rooms with sloped, peaked, or gabled ceilings, install detectors 3
feet (0.9 meter) measured down on the slant from the highest point of
the ceiling. See Figure 5.
Figure 5: Recommended smoke detector location in rooms with
sloped, gabled or peaked ceilings:
HORIZONTAL
DISTANCE
FROM PEAK
3 FEET
(.9M)
unit, including basements and excluding crawl spaces and unfinished attics. In new construction, a smoke detector also shall be installed in each
sleeping room.”
The above NFPA standard is a minimum requirement for smoke detector installation. For better protection, we also require the installation
of a smoke detector inside every bedroom in existing construction.
• Install a minimum of two smoke detectors in any household, no
matter how small it is.
• Put a smoke detector in the hallway outside of every separate bedroom area. (See Figure 1.) A minimum of two detectors are required in
homes with two bedroom areas. (See Figure 2.)
• Put a smoke detector on every level of a multi-level residence. (See
Figure 3.)
• Install basement detectors on the ceiling at the bottom of the basement
stairwell. (See Figure 3.)
Figure 3: Recommended smoke detector protection for a multilevel residence:
Where Smoke Detectors Should NOT Be Installed
• In or near areas where combustion particles are normally present
such as kitchens; in garages where there are particles of combustion
in vehicle exhausts; near furnaces, hot water heaters, or gas space
heaters. Install detectors at least 20 feet (6 meters) away from kitchens and other areas where combustion particles are normally
present.
• On the ceiling in rooms next to kitchens where there is no transom
between the kitchen and these rooms. Instead, install the smoke detector on an inside wall, furthest from the kitchen (See Figure 6). Be sure
not to install smoke detectors within 4" of the ceiling or any corner or
more than 6" from the ceiling.
A78-1171-05
Figure 6: Recommended smoke detector locations to avoid air
BEDROOM
BEDROOM BEDROOM
BASEMENT
KITCHEN
GARAGE
A78-1171-03
LIVING
ROOM
SMOKE DETECTORS FOR MINIMUM PROTECTION
SMOKE DETECTORS FOR MORE PROTECTION AND
REQUIRED IN NEW CONSTRUCTION
• Install detectors on the ceiling as close to the center of the room as
possible. If this is not practical, install it on the ceiling no closer than 4
inches (10 cm) from any wall or corner. (See Figure 4.)
• If wall-mounting is permitted by local and state codes, and ceiling
mounting is not practical, install detectors on an inside wall between 4
and 6 inches (10 and 15 cm) from the ceiling. (See Figure 4.)
Figure 4: Recommended smoke detector mounting locations:
DEAD AIR
SPACE
BEST IN CENTER
OF CEILING
NO CLOSER THAN 4
"
(10 cm)
FROM SIDE WALL
MOUNT ON WALL
AT LEAST 4
"
FROM CEILING
NO MORE
"
(15 cm)
THAN 6
FROM CEILING
(10 cm)
streams with combustion particles:
AIR RETURN
CORRECT
BEDROOM
BEDROOM
BATH
• In damp or very humid areas, or next to bathrooms with showers.
The moisture in humid air can enter the sensing chamber as water vapor, then cool and condense into droplets that cause a nuisance alarm.
Install detectors at least 5 feet (1.5 meters) away from bathrooms.
• In very cold or very hot rooms or areas. Operating temperature of the
smoke detector is 40°F to 100°F (4°C to 38°C).
• In dusty, dirty, or insect-infested areas. Dust and dirt can build up on
the detector’s sensing chamber and make it overly sensitive, or can
block openings to the sensing chamber and keep the detector from
sensing smoke.
• Near fresh air inlets or returns or excessively drafty areas. Air con-
ditioners, heaters, fans, and fresh air intakes and returns can drive
smoke away from smoke detectors, making the detectors less effective.
LIVING
ROOM
AIR INLET
STOVE
KITCHEN
INCORRECT
A78-1171-06
• In dead air spaces at the top of a peaked ceiling or wall/ceiling inter-
sect. Dead air may prevent smoke from reaching a detector.
• Near fluorescent light fixtures. Install detectors at least 10 feet (3
meters) away from such light fixtures.
BEST LOCATION
ACCEPTABLE LOCATION
A78-1171-04
• Put detectors at both ends of a bedroom hallway if the hallway is more
than 30 feet (9 meters) long. In addition, large rooms will require more
Installation Requirements
Warning: Electrical Shock Hazard. Turn off power at the main fuse box
or circuit breaker to the area of detector installation before beginning installation procedures.
• Mount detector to a 4-inch octagonal junction box only. Mount the 12
than a single detector if the room is over 900 square feet.
D100-55-00 2 I56-733-10
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