First Alert SC9120B User manual

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INTRODUCTION
Thank you for choosing BRK Brands, Inc. for your Smoke and Carbon
Monoxide Alarm needs. You have purchased a state-of-the-art Smoke &
CO Alarm designed to provide you with early warning of a fire or Carbon
Monoxide. Key features include:
Smoke & Carbon Monoxide Combination Alarm. One alarm protects
against two deadly household threats.
Most Accurate Carbon Monoxide Sensor* Advanced electrochemical
CO sensor technology.
Intelli ent Sensin Technolo y designed to help reduce unwanted or
nuisance alarms.
Smart Interconnect can be interconnected to BRK Smoke Alarms.
One interconnect wire carries both smoke and CO alarm signals.
Sin le Button Test/Silence eliminates confusion. Depending on what
mode the alarm is in, pushing the button provides different functions
such as testing the alarm, silencing the alarm, re-testing the alarm
when in silence and clearing the Latching feature.
Two Silence Features. Temporarily silence low battery chirp for up to
eight hours before replacing low battery or silence an unwanted alarm
for several minutes.
Two Latchin Features. Alarm Latch Easily identifies initiating alarm
even after alarm condition has subsided. Low Battery Latch Identifies
which unit is in low battery condition.
Perfect Mount System includes a gasketless base for easy installation
and a new mounting bracket that keeps the alarm secure over a wide
rotation range to allow for perfect alignment.
End of Life Si nal. Provides audible and visual confirmation alarm
needs to be replaced.
*As compared to other sensing technologies
© 2012 BRK Brands, Inc. All rights reserved.
Distributed by BRK Brands, Inc.
3901 Liberty Street Road, Aurora, IL 60504-8122
Consumer Affairs [phone]
www.brkelectronics.com • www.firstalert.com
FIRE SAFETY TIPS
Follow safety rules and prevent hazardous situations 1) Use smoking
materials properly. Never smoke in bed. 2) Keep matches or lighters
away from children; 3) Store flammable materials in proper containers;
4) Keep electrical appliances in good condition and don’t overload elec-
trical circuits; 5) Keep stoves, barbecue grills, fireplaces and chimneys
grease- and debris-free; 6) Never leave anything cooking on the stove
unattended; 7) Keep portable heaters and open flames, like candles,
away from flammable materials; 8) Don’t let rubbish accumulate.
Keep alarms clean, and test them weekly. Replace alarms immediately
if they are not working properly. Smoke Alarms that do not work cannot
alert you to a fire. Keep at least one working fire extinguisher on every
floor, and an additional one in the kitchen. Have fire escape ladders or
other reliable means of escape from an upper floor in case stairs are
blocked.
BASIC SAFETY INFORMATION
• Dangers, Warnings, an Cautions alert you to important
operating instructions or to potentially hazar ous situations.
Pay special attention to these items.
• This Smoke/CO Alarm is approve for use in single-family
resi ences. It is NOT esigne for marine or RV use.
•
This combination Smoke/Carbon Monoxi e Alarm has two
separate alarms. The CO Alarm is not esigne to etect fire
or any other gas. It will only in icate the presence of carbon
monoxi e gas at the sensor. Carbon monoxi e gas may be
present in other areas. The Smoke Alarm will only in icate the
presence of smoke that reaches the sensor. The Smoke Alarm
is not esigne to sense gas, heat or flames.
All BRK®an First Alert® Smoke Alarms conform to regulatory
requirements, inclu ing UL217 an are esigne to etect particles
of combustion. Smoke particles of varying number an size are
pro uce in all fires.
Ionization technology is generally more sensitive than photo-
electric technology at detecting small particles, which tend to be
produced in greater amounts by flaming fires, which consume
combustible materials rapidly and spread quickly. Sources of these
fires may include paper burning in a wastebasket, or a grease fire in
the kitchen.
Photoelectric technology is generally more sensitive than ionization
technology at detecting large particles, which tend to be produced
in greater amounts by smoldering fires, which may smolder for
hours before bursting into flame. Sources of these fires may include
cigarettes burning in couches or bedding.
For maximum protection, use both types of Smoke Alarms on
each level an in every be room of your home.
ELECTRICAL SHOCK HAZARD. Turn off the power to the area
where the Smoke/CO Alarm is installe before removing it from
the mounting bracket. Failure to turn off the power first may
result in serious electrical shock, injury or eath.
• This unit will not alert hearing impaire resi ents. It is
recommen e that you install special units which use evices
like flashing strobe lights to alert hearing impaire resi ents.
• Installation of this unit must conform to the electrical co es
in your area; Articles 210 an 300.3 (B) of NFPA 70 (NEC),
NFPA 72, NFPA 101; ICC; SBC (SBCCI); UBC (ICBO);
NBC (BOCA); OTFDC (CABO), an any other local or buil ing
co es that may apply. Wiring an installation must be
performe by a license electrician. Failure to follow these
gui elines may result in injury or property amage.
• This unit must be powere by a 24-hour, 120V AC pure sine
wave 60 Hz circuit. Be sure the circuit cannot be turne off
by a switch, immer, or groun fault circuit interrupter.
Failure to connect this unit to a 24-hour circuit may prevent it
from provi ing constant protection.
Unit may be connecte to
an arc fault circuit interrupter.
• This Smoke/CO Alarm must have AC or battery power to
operate. If AC power fails an the battery is ea or missing,
the alarm cannot operate.
• Never isconnect the power from an AC powere unit to
stop an unwante alarm. Doing so will isable the unit an
remove your protection. In the case of a true unwante
alarm, use the Silence Feature (if equippe ), open a win ow
or fan the smoke away from the unit. The alarm will reset
automatically when it returns to normal operation. Never
remove the batteries from a battery operate unit to stop an
unwante alarm (cause by cooking smoke, etc.). Instea
open a win ow or fan the smoke away from the unit. The
alarm will reset automatically.
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INSTALLATION
WHERE TO INSTALL THIS ALARM
Minimum coverage for Smoke Alarms, as recommended by the
National Fire Protection Association (NFPA), is one Smoke Alarm on
every floor, in every sleeping area, and in every bedroom (See
“Regulatory Information For Smoke Alarms” for details on the NFPA
recommendations).
For CO Alarms, the National Fire Protection Association (NFPA)
recommends that a CO Alarm should be centrally located outside of
each separate sleeping area in the immediate vicinity of the bedrooms.
For added protection, install additional CO Alarms in each separate
bedroom, and on every level of your home.
In general, install combination Smoke an Carbon Monoxi e
Alarms:
•On every level of your home, including finished attics and basements.
•Inside every bedroom, especially if people sleep with the door partly
or completely closed.
• In the hall near every sleeping area. If your home has multiple
sleeping areas, install a unit in each. If a hall is more than 40 feet
(12 meters) long, install a unit at each end.
• At the top of first-to-second floor stairs.
•At the bottom of the basement stairs.
•For additional coverage, install Alarms in all rooms, halls, and storage
areas, where temperatures normally remain between 40˚ F and
100˚ F (4.4˚ C and 37.8˚ C).
Recommen e Placement
• When installing on the wall, the top edge of Smoke Alarms should
be placed between 4 inches (102 mm) and 12 inches (305 mm)
from the wall/ceiling line.
• When installing on the ceiling, place the alarm as close to the
center as possible.
•In either case, install at least 4 inches (102 mm) from where the
wall and ceiling meet. See “Avoiding Dead Air Spaces” for more
information.
NOTE: For any location, make sure no door or other obstruction could
keep carbon monoxide or smoke from reaching the Alarm.
Installin Smoke/CO Alarms in Mobile Homes
For minimum security install one Smoke/CO Alarm as close to each
sleeping area as possible. For more security, put one unit in each room.
Many older mobile homes (especially those built before 1978) have little
or no insulation. If your mobile home is not well insulated, or if you are
unsure of the amount of insulation, it is important to install units on
inside walls only.
WHERE THIS ALARM SHOULD NOT BE INSTALLED
Do NOT locate this Smoke/CO Alarm:
• In garages, kitchens, furnace rooms, crawl spaces and unfinished
attics. Avoid extremely dusty, dirty or greasy areas.
•Where combustion particles are produced. Combustion particles
form when something burns. Areas to avoid include poorly ventilated
kitchens, garages, and furnace rooms. Keep units at least 20 feet
(6 meters) from the sources of combustion particles (stove, furnace,
water heater, space heater) if possible. In areas where a 20-foot
(6 meter) distance is not possible – in modular, mobile, or smaller
homes, for example – it is recommended the Smoke/CO Alarm be
placed as far from these fuel-burning sources as possible. The
placement recommendations are intended to keep these Alarms at
a reasonable distance from a fuel-burning source, and thus reduce
“unwanted” alarms. Unwanted alarms can occur if a Smoke/CO
Alarm is placed directly next to a fuel-burning source. Ventilate
these areas as much as possible.
• Within 5 feet (1.5 meters) of any cooking appliance. In air streams
near kitchens. Air currents can draw cooking smoke into the smoke
sensor and cause unwanted alarms.
• In extremely humid areas. This Alarm should be at least 10 feet
(3 meters) from a shower, sauna, humidifier, vaporizer, dishwasher,
laundry room, utility room, or other source of high humidity.
• In direct sunlight.
• In turbulent air, like near ceiling fans or open windows. Blowing air
may prevent CO or smoke from reaching the sensors.
• In areas where temperature is colder than 40˚ F (4.4˚ C) or hotter
than 100˚ F (37.8˚ C). These areas include non-airconditioned crawl
spaces, unfinished attics, uninsulated or poorly insulated ceilings,
porches, and garages.
• In insect infested areas. Insects can clog the openings to the
sensing chamber.
• Less than 12 inches (305 mm) away from fluorescent lights.
Electrical “noise” can interfere with the sensor.
• In “dead air” spaces. See “Avoiding Dead Air Spaces”.
AVOIDING DEAD AIR SPACES
“Dead air” spaces may prevent smoke from reaching the Smoke/CO
Alarm. To avoid dead air spaces, follow installation recommendations
below.
On ceilings, install Smoke/CO Alarms as close to the center of the
ceiling as possible. If this is not possible, install the Smoke/CO Alarm
at least 4 inches (102 mm) from the wall or corner.
For wall mounting (if allowed by building codes), the top edge of
Smoke/CO Alarms should be placed between 4 inches (102 mm) and
12 inches (305 mm) from the wall/ceiling line.
On a peake , gable , or cathe ral ceiling, install the first Smoke/CO
Alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured
horizontally. Additional Smoke/CO Alarms may be required depending
on the length, angle, etc. of the ceiling's slope. Refer to NFPA 72 for
details on requirements for sloped or peaked ceilings.
Continued...
SUGGESTED AREAS FOR INSTALLING 
SMOKE ALARMS, CO ALARMS, AND COMBO UNITS
SMOKE ALARM WITH 
SILENCE FEATURE
CO ALARMS
BOTH, OR COMBINATION 
SMOKE/CO ALARMS
SMOKE ALARMS
KEY:
Suggested locations are based on
NFPA recommendations (NFPA 72 
for Smoke Alarms and NFPA 720 for
Carbon Monoxide Alarms). Always 
refer to national and local codes 
before beginning any installation.
In new construction AC and AC/DC smoke alarms MUST
be interconnected to meet NFPA recommendations.

BEFORE YOU BEGIN INSTALLATION
This unit is designed to be mounted on any standard wiring junction
box up to a 4-inch (10 cm) size, on either the ceiling or wall. Read
“Where to Install This Alarm” and “Where This Alarm Should Not Be
Installed ” before you begin installation.
• Make sure the alarm is not receiving excessively noisy power.
Examples of noisy power coul be major appliances on the
same circuit, power from a generator or solar power, light im-
mer on the same circuit or mounte near fluorescent lighting.
Excessively noisy power may cause amage to your Alarm.
Find the pair of self-adhesive labels included with this Smoke/CO Alarm.
• On each label write in the phone number of your emergency
responder (like 911) and a qualified appliance technician.
• Place one label near the Smoke/CO Alarm, and the other label in
the “fresh air” location you plan to go if the alarm sounds.
NOTE: A qualified appliance technician is defined as “a person, firm,
corporation, or company that either in person or through a representa-
tive, is engaged in and responsible for the installation, testing, servicing,
or replacement of heating, ventilation, air conditioning (HVAC) equipment,
combustion appliances and equipment, and/or gas fireplaces or other
decorative combustion equipment.”
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1 Mounting Bracket
2 Mounting Slot and Screw*
3 Locking Pins (break out of
bracket)
4Hot (Black) AC Wire
5Neutral (White) AC Wire
6Interconnect Wire (Orange)
7 Lever to Open Battery
Compartment
8 Swing-Out Battery
Compartment
9Quick-Connect Power
*Not Included
PARTS OF THIS SMOKE/CO ALARM
Tools you will nee : Standard Flathead screwdriver, wire strippers.
ELECTRICAL SHOCK HAZARD. Turn off power to the area where you
will install this unit at the circuit breaker or fuse box before beginning
installation. Failure to turn off the power before installation may
result in serious electrical shock, injury or eath.
To install this unit:
1. Remove the mounting bracket from the base. Position the screw
slots on the mounting bracket over the screws in the junction box.
Tighten the screws.
Improper wiring of the power connector or the wiring lea ing to
the power connector will cause amage to the Alarm an may lea
to a non-functioning Alarm.
2. Using wire nuts, connect the power connector to the AC power.
3. Plug the power connector into the back of the Smoke/CO Alarm.
4.
Position the base of the Smoke/CO Alarm over the mounting bracket
and turn. The Alarm will remain secure over a wide rotation range to
allow for perfect alignment. When wall mounting, this will allow fine-
tuning on the positioning to compensate for out of aligned wall studs
and to keep the wording level. The Alarm can be positioned over the
bracket every 120°. Rotate the Alarm until aligned properly.
5. Check all connections.
STAND ALONE ALARM ONLY:
• Connect the white wire on the power connector to the neutral
wire in the junction box.
• Connect the black wire on the power connector to the hot wire
in the junction box.
•Tuck the orange wire inside the junction box. It is use for
interconnect only.
INTERCONNECTED ALARMS ONLY:
Strip off about 1/2” of the plastic coating on the orange
interconnect wire on the power connector.
•Connect the white wire on the power connector to the neutral
wire (usually white) in the junction box.
• Connect the black wire on the power connector to the hot wire
(usually black) in the junction box.
• Connect the orange wire on the power connector to the inter-
connect wire in the junction box. Repeat for each unit you are
interconnecting. Never connect the hot or neutral wires in the
junction box to the orange interconnect wire. Never cross hot
and neutral wires between interconnected Alarms.
SPECIAL REQUIREMENTS FOR INTERCONNECTED ALARMS
• Failure to meet any of the above requirements coul amage
the units an cause them to malfunction, removing your
protection.
• AC an AC/DC Smoke/CO Alarms can be interconnecte .
Un er AC power, all units will alarm when one senses smoke
or CO. When power is interrupte , only the AC/DC units in
the series will continue to sen an receive signals.
AC powere Smoke/CO Alarms will not operate. See “Smart
Interconnect” Feature.
Interconnected units can provide earlier warning of a Smoke/CO problem
than stand-alone units, especially if the problem starts in a remote area of
the dwelling. If any unit in the series senses Smoke/CO, all units will alarm.
To determine which Smoke/CO Alarm initiated an alarm, refer to the table.
During an Alarm:
On Initiating Alarm(s) – Red LED(s) flashes (flash) rapidly
On All Other Alarms – Red LED is Off
After an Alarm (Latching):
On Initiating Alarm(s) – Red LED(s) On for 2 seconds/Off for 2 seconds
On All Other Alarms – Green LED(s) On, Red LED(s) is Off
Compatible Interconnecte Units
Interconnect units within a single family residence only. Otherwise all
households will experience unwanted alarms when you test any unit in the
series. Interconnected units will only work if they are wired to compatible
units and all requirements are met. This unit is designed to be compatible
with First Alert®Smoke Alarm Mo els SA4120, SA4121B, SA100B,
SA520 and BRK®Smoke Alarm Mo els 9120, 9120B, SC6120B,
SC9120B, 7010, 7010B, 7020B, SC7010B, SC7010BV, 100S, 4120,
4120B, 4120SB; BRK®CO Alarm Mo els CO5120BN, CO5120PDBN;
BRK®Heat Alarm Mo els HD6135F and HD6135FB; BRK®Auxiliary
Devices Mo els RM3 and RM4 (Relay Modules), SL177 (Strobe Light).
See www.brkelectronics.com for most current interconnect list.
Interconnecte units must meet ALL of the following requirements:
• A maximum of 18 compatible BRK Electronics® Smoke, Heat or CO
Alarms may be interconnected. No more than 12 of the 18 can be
Smoke Alarms per NFPA 72.
• The same fuse or circuit breaker must power all interconnected units.
• The total length of wire interconnecting the units should be less
than 1000 feet (300 meters). This type of wire is commonly available
at Hardware and Electrical Supply stores.
• All wiring must conform to all local electrical codes and NFPA 70 of
the National Electrical Code. Refer to NFPA 72, NFPA 101, and/or
your local building code for further connection requirements.
6. Make sure the Smoke/CO Alarm is receiving AC power. Under normal
operation, the green indicator light will shine continuously.
If the green
power indicator light does not light, TURN OFF POWER TO THE
JUNCTION BOX and recheck all connections. If all connections are
correct and the green power indicator still does not light when you
restore the power, the unit should be replaced immediately.
7.ACTIVATING THE BATTERY BACK-UP
Activate the battery back-up by removing the “Pull to Activate
Battery Back-Up” tab. You do not need to open the battery
compartment and reposition the battery during installation.
DO NOT
remove the battery activation tab until AC power is turne on to
conserve battery power.
8.Single Station Alarms: Test each Alarm. Press and hold the
Test/Silence button until you hear the acknowledge “chirp” or the
unit alarms.
Interconnecte Alarms: Press and hold the Test/Silence button
until the unit alarms. All interconnected Alarms should sound. The
other Alarms sounding only tests the interconnect signal between
Alarms. It does not test each Alarm’s operation. You must test each
Alarm in ivi ually to check if the Alarm is functioning properly.
If any unit in the series does not alarm during testing, TURN OFF POWER,
REMOVE BATTERIES, and recheck connections. If it does not alarm when
you restore power, replace it immediately.
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AB
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A. Unswitched 120VAC B. To Additional Alarms,
60 Hz source Maximum = 18 Alarms
1. Smoke/CO Alarm
2. Ceiling or Wall
3. Power Connector
4. Wire Nut
5. Junction Box
6. Neutral Wire (White)
7. Interconnect Wire
(Orange)
8. Hot Wire (Black)
STAND ALONE ALARM ONLY:
• If you are only installing one unit, restore power to the junction box.
INTERCONNECTED ALARMS ONLY:
• If you are interconnecting multiple Smoke/CO Alarms, repeat
Step 1-5 for each Smoke/CO Alarm in the series. When you are
finishe , restore power to the junction box.
ELECTRICAL SHOCK HAZARD. Do not restore power until all
Alarms are completely installe . Restoring power before installation
is complete may result in serious electrical shock, injury or eath.
HOW TO INSTALL THIS SMOKE/CO ALARM
INSTALLATION, Continued
1. Test/Silence Button Press
and hold to activate test,
or to silence the alarm.
2. POWER Light (GREEN)/
SMOKE ALARM Light (RED)
3. CO ALARM Light (RED)
4. Battery Drawer
5. (Behind the Cover) Alarm
Horn 85 dB audible alarm
for test, alarm, and unit
malfunction warning.
HOW YOUR SMOKE/CO ALARM WORKS
THE COVER OF YOUR SMOKE/CO ALARM
The optional locking features are esigne to iscourage unauthorize
removal of the battery or alarm. It is not necessary to activate the locks
in single-family househol s where unauthorize battery or alarm
removal is not a concern.
These Smoke/CO Alarms have two separate locking features one locks
the battery compartment, and the other locks the Smoke/CO Alarm to the
mounting bracket. You can choose to use either feature independently, or
use them both.
Tools you will nee : • Needle-nose pliers or utility knife
• Standard/Flathead screwdriver.
USING THE OPTIONAL LOCKING FEATURES
THE BATTERY COMPARTMENT LOCK
TO LOCK THE BATTERY COMPARTMENT:
Do not lock the battery compartment until you have activated the battery
and tested the battery back-up.
1. Activate the battery back-up by removing
the “Pull to Activate Battery Back-Up”
tab. Push and hold the test button on the
Smoke/CO Alarm’s cover until the alarm
sounds 4 beeps, pause, 4 beeps, pause,
3 beeps, pause, 3 beeps, pause.
If the unit oes not alarm uring
testing, DO NOT lock the battery
compartment! Install a new battery
an test again. If it still oes not
alarm, replace the Smoke/CO
Alarm imme iately.
2. Using needle-nose pliers or a utility
knife, detach one locking pin from
the mounting bracket.
3. Push the locking pin
through the black dot on
the label on the back of
the Smoke/CO Alarm.
THE MOUNTING BRACKET LOCK
TO ACTIVATE THE BRACKET LOCK:
1. Using needle-nose pliers, detach one locking pin from the mounting
bracket.
2. Insert the locking pin into the lock located on the base as shown in
the diagram.
3. When you attach the Smoke/CO Alarm to the mounting bracket,
the locking pin’s head will fit into a notch on the bracket.
TO DEACTIVATE THE BRACKET LOCK:
ELECTRICAL SHOCK HAZARD. Turn off the power to the area
where the Smoke/CO Alarm is installe before removing it from the
mounting bracket. Failure to turn off the power first may result in
serious electrical shock, injury or eath.
Always ischarge the branch circuit before servicing an AC or
AC/DC Smoke/CO Alarm. First, turn off the AC power at the circuit
breaker or fuse box. Next, remove the battery from Smoke/CO
Alarms with battery back-up. Finally, press an hol the test button.
1.
Insert a flathead screwdriver between the mounting bracket pin and
the mounting bracket.
2. Pry the Smoke/CO Alarm away from the bracket by turning both
the screwdriver and the Smoke/CO Alarm counterclockwise (left)
at the same time.
TO PERMANENTLY REMOVE
THE BRACKET LOCK:
Insert the flathead screwdriver
between the locking pin and the
lock, and pry the pin out of the
lock.
TO UNLOCK THE BATTERY COMPARTMENT:
Once the Smoke/CO Alarm is installed, you must disconnect it from the AC
power before unlocking the battery compartment.
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where
the Smoke/CO Alarm is installe before removing it from the mounting
bracket. Failure to turn off the power first may result in serious electrical
shock, injury or eath.
1. Remove the Smoke/CO Alarm from the mounting bracket. If the unit is
locked to the bracket, see the section “To Deactivate the Locking
Feature.”
2. Disconnect the power connector by gently prying it away from the back
of the Smoke/CO Alarm.
3. Insert a flathead screwdriver under the head of the
locking pin, and gently pry it out of the battery
compartment lock. (If you plan to re-lock the
battery compartment, save the locking pin.)
4. To re-lock the battery compartment, close the
battery door and reinsert the locking pin in the
lock.
5. Reconnect the power connector to the back of the Smoke/CO Alarm,
reattach the Smoke/CO Alarm to the mounting bracket, and restore the
power.
When replacing the battery, always test the Smoke/CO Alarm before
re-locking the battery compartment.
Mounting Bracket Lock
Battery Drawer Lock
Locking Pin
IF YOUR SMOKE/CO ALARM SOUNDS
WHAT TO DO IF CARBON MONO IDE IS DETECTED
Continued...
IF THE CO ALARM SOUNDS:
1. Operate the Test/Silence button.
2. Call your emergency services, fire department or 911. Write down
the number of your local emergency service here
_____________________________________________________________
3. Immediately move to fresh air—outdoors or by an open door or
window. Do a head count to check that all persons are accounted
for. Do not re-enter the premises, or move away from the open door
or window until the emergency services responder has arrived, the
premises have been aired out, and your Smoke/CO Alarm remains
in its normal condition.
4. After following steps 1-3, if your Smoke/CO Alarm reactivates within
a 24-hour period, repeat steps 1-3 and call a qualified appliance
technician to investigate for sources of CO from fuel-burning
equipment and appliances, and inspect for proper operation of
this equipment. If problems are identified during this inspection
have the equipment serviced immediately. Note any combustion
equipment not inspected by the technician, and consult the
manufacturers’ instructions, or contact the manufacturers directly,
for more information about CO safety and this equipment. Make
sure that motor vehicles are not, and have not, been operating in
an attached garage or adjacent to the residence. Write down the
number of a qualified appliance technician here
_____________________________________________________________
WHAT TO DO IF SMOKE IS DETECTED
• If the unit alarms an you are not testing the unit, it is warning
you of a potentially angerous situation that requires your
imme iate attention. NEVER ignore any alarm. Ignoring the
alarm may result in injury or eath.
• Never isconnect the AC power to quiet an unwante alarm.
Disconnecting the power isables the Alarm so it cannot
sense smoke. This will remove your protection. Instea , open
a win ow or fan the smoke away from the unit. The Alarm will
reset automatically.
• If the unit alarms get everyone out of the house imme iately.
•
ELECTRICAL SHOCK HAZARD: Attempting to isconnect the
power connector from the unit when the power is on may result
in electrical shock, serious injury or eath.
When an interconnected system of AC powered units is in alarm,
the alarm indicator light on the unit(s) that initiated the alarm will blink
rapidly. It will remain OFF on any remaining units.
If the unit alarms, get everyone out of the dwelling immediately.
If the unit alarms and you are certain that the source of smoke is not a
fire—cooking smoke or an extremely dusty furnace, for example—open a
nearby window or
door and fan the smoke away from the unit. Use the
Silence Feature to silence the Alarm. This will silence the alarm, and
once the smoke clears the unit will reset itself automatically.
WHAT TO DO IN CASE OF FIRE
•Don’t panic; stay calm. Follow your family escape plan.
• Get out of the house as quickly as possible. Don’t stop to get
dressed or collect anything.
•Feel doors with the back of your hand before opening them.
If a door is cool, open it slowly. Don’t open a hot door. Keep doors
and windows closed, unless you must escape through them.
•Cover your nose and mouth with a cloth (preferably damp).
Take short, shallow breaths.
• Meet at your planned meeting place outside your home,
and do a head count to make sure everybody got out safely.
•Call the Fire Department as soon as possible from outside.
Give your address, then your name.
• Never go back inside a burning building for any reason.
•Contact your Fire Department for ideas on making your home safer.
Alarms have various limitations. See "General Limitations of
Smoke/CO Alarms" for etails.
“SMART INTERCONNECT” FEATURE
This Alarm includes "Smart Interconnect" which enables the Alarm to be
interconnected with other BRK Smoke, Heat, and "Smart Interconnect"
CO Alarms. When smoke is detected, all Alarms will sound the smoke
horn pattern. When CO is detected, "Smart Interconnect" Alarms will
sound the CO horn pattern. Alarms that do not have the "Smart
Interconnect" Feature will remain silent during a CO alarm.
If you hear the alarm horn soun 3 beeps, pause, 3 beeps,
pause an the RED SMOKE light is flashing, smoke has
been etecte . Evacuate everyone from the buil ing.
Usin the Optional Lockin Features (Continued)
WHAT TO DO IF CARBON MONOXIDE IS DETECTED, Continued
Actuation of your CO Alarm in icates the presence of carbon
monoxi e (CO) which can kill you. In other wor s, when your CO
Alarm soun s, you must not ignore it!
• Connect this unit ONLY to other compatible units. See “How
To Install This Smoke/CO Alarm” for etails. Do not connect
it to any other type of alarm or auxiliary evice. Connecting
anything else to this unit may amage it or prevent it from
operating properly.
• The battery compartment resists closing unless a battery is
installe . This warns you the unit will not operate un er DC
power without a battery.
• Do not stan too close to the unit when the alarm is soun ing.
It is lou to wake you in an emergency. Exposure to the horn
at close range may harm your hearing.
• Do not paint over the unit. Paint may clog the openings to the
sensing chambers an prevent the unit from operating properly.
USER’S MANUAL
Smoke & Carbon
Monoxide Alarm
AC Powere Smoke &
Carbon Monoxi e Alarm
with Battery Back-up,
Silence Feature an
Latching Alarm
Model SC9120B
Input 120V AC ~
60 Hz, 0.09A
IMPORTANT! PLEASE READ CAREFULLY AND SAVE
This user’s manual contains important information about your Alarm’s
operation. If you are installing the Alarm for use by others, you must
leave this manual — or a copy of it — with the end user.
Model
SC9120B
Printed in Mexico
M08-0094-024 K1 08/12
Both locking features use locking pins, molded into the mounting bracket. Using needle nose pliers or a utility knife, remove one or both pins, depending on
which locking features you use.
“ALARM-MOVE TO FRESH AIR”
If you hear the alarm horn soun 4 beeps, pause,
4 beeps, pause, an the RED CO light is flashing,
move everyone to a source of fresh air.
CONFORMS TO
UL STD 217 &
UL STD 2034
WHAT YOU WILL SEE AND HEAR WITH THIS ALARM
Un er Normal Operations
Horn: Silent
Power/Smoke LED: Constant Green
CO LED: Off
When You Test the Alarm
Horn: 3 beeps, pause, 3 beeps
Power/Smoke LED: AC Power (LED Green); Battery Power (LED off)
CO LED: Off, followed by
Horn: 4 beeps, pause, 4 beeps
Power/Smoke LED: Turns back On
CO LED: Flashes Red in sync with the horn pattern
If Battery Becomes Low or is Missing
Horn: chirps once a minute
Power/ Smoke LED: Flashes Green once a minute until reset. Low
Battery latch is now engaged. (See Latching Features note
below.) Green LED On for 2 seconds/Off for two seconds.
CO LED: Off
If Alarm is Not Operating Properly (MALFUNCTION SIGNAL)
Horn: 3 chirps every minute
Power/Smoke LED: Green LED 3 Flashes approx. once a minute
CO LED: Off
Alarm has reache its En of Life
Horn: 5 chirps every minute
Power/Smoke LED: Green LED 5 Flashes approx. once a minute
CO LED: Off
Alarm Levels of CO are Detecte
Horn: 4 beeps, pause, 4 beeps
Power/Smoke LED: On
CO LED: During Alarm Flashes Red in sync with the horn pattern.
After Alarm Flashes Red On for 2 seconds/Off for 2 seconds.
CO Alarm Latch is now engaged. (See LATCHING FEATURES
section for details).
Smoke is Detecte
Horn: 3 beeps, pause, 3 beeps
Power/Smoke LED: During Alarm Flashes Red in sync with the
horn pattern. After Alarm Flashes Red On for 2 seconds/Off
for 2 seconds. Smoke Alarm Latch is now engaged. (See
LATCHING FEATURES section for details).
CO LED: Off
Smoke Alarm is Silence
Horn: Off
Power/Smoke LED: Flashes Red
CO LED: Off
CO Alarm is Silence
Horn: Off
Power/Smoke LED: AC Power (LED Green); Battery Power (LED off)
CO LED: Flashes Red
Latching Features Note: Without AC Power an running on battery
only, Low Battery Latch or Alarm Latch are only engage for about
15 minutes to conserve power. Low Battery Latch an Alarm Latch
o not operate with a missing battery an no AC Power.
USING THE SILENCE FEATURES
Never remove the batteries to quiet an unwante alarm. Removing
the batteries isables the alarm an removes your protection.
The Silence Feature is intended to temporarily silence the horn while
you identify and correct the problem. Do not use the Silence Feature in
emergency situations. It will not correct a CO problem or extinguish a
fire.
The Silence Feature can temporarily quiet an unwanted alarm for several
minutes. You can silence this Smoke/CO Alarm by pressing the Test/
Silence button on the alarm cover until you hear an acknowledge chirp.
After the Test/Silence button is released, the Red LED blinks during the
silence mode.
SILENCING THE LOW BATTERY WARNING
This Silence Feature can temporarily quiet the low battery warning
“chirp” for up to 8 hours if AC power is present. Press the Test/Silence
button on the Alarm cover until you hear the acknowledge “chirp”.
Once the low battery warning “chirp” silence feature is activated, the
unit continues to flash the green light once a minute for 8 hours. After
8 hours, the low battery “chirp” will resume. The Alarm will continue to
operate as long as AC power is supplied. Note, if battery is missing or
dead, Low Battery Silence cannot be activated and alarm with continue
to chirp approximately once per minute. However, replace the batteries
as soon as possible, to maintain protection in event of a power outage.
To eactivate this feature: Press the Test/Silence button again.
The unit will go into Test Mode and the low battery warning will resume
(LED flashes and unit sounds “chirp” once a minute).
To silence Alarms in an interconnecte series:
To silence an interconnected series of Smoke/CO Alarms, you must
press the Test/Silence button on the initiating alarm (The unit with the
flashing red light; the red light will be off on all other Alarms.). If you
press the Test/Silence on any other Alarm, it will only silence that unit,
not the whole interconnected series.
When the Smoke Alarm is
Silence When the CO Alarm is Silence
The Smoke Alarm will remain
silent for up to 15 minutes, then
return to normal operation.
If the smoke has not cleared–or
continues to increase–the device
will go back into alarm.
The CO alarm will remain silent
for up to 4 minutes.
After 4 minutes, if CO levels
remain potentially dangerous the
horn will start sounding again.
SILENCING THE END OF LIFE SIGNAL
This silence feature can temporarily quiet the End of Life warning “chirp”
for up to 2 days. You can silence the End of Life warning “chirp” by
pressing the Test/Silence button. The horn will chirp, acknowledging
that the End of Life silence feature has been activated.
After approximately 2 days, the End of Life “chirp” will resume.

7 8
Printed in Mexico M08-0094-024 K1 08/12
BRK Electronics®is a registered trademark of BRK Brands, Inc.
First Alert®is a registered trademark of the First Alert Trust.
9 10 11 12
WEEKLY TESTING
• NEVER use an open flame of any kin to test this unit. You
might acci entally amage or set fire to the unit or to your
home. The built-in test switch accurately tests the unit’s
operation as require by Un erwriters Laboratories, Inc.
(UL). NEVER use vehicle exhaust! Exhaust may cause per-
manent amage an voi s your warranty.
• DO NOT stan close to the Alarm when the horn is soun ing.
Exposure at close range may be harmful to your hearing.
When testing, step away when horn starts soun ing.
It is important to test this unit every week to make sure it is working
properly. Using the test button is the recommen e way to test this
Smoke/CO Alarm.
1. Push and hold the Test/Silence button on the cover until you hear a
“chirp.” The “chirp” marks the start of the self-test sequence.
2. During testing, you will hear a loud, repeating horn pattern 3 beeps,
pause, 3 beeps, pause, while the red smoke LED flashes. Then you
will hear a loud, repeating horn pattern 4 beeps, pause, 4 beeps,
pause, while the red CO LED flashes.
3. When testing a series of interconnected units you must test each
unit individually. Make sure all units alarm when each one is tested.
If the Smoke/CO Alarm oes not test properly:
1. Make sure the AC power is applied and battery is fresh and
installed correctly.
2. Be sure the alarm is clean and dust-free.
3. Test the unit again.
If the Smoke/CO Alarm is still not working properly, replace it immediately.
Refer to the “Limited Warranty” at the end of this manual.
If there is still a problem, o not try to fix the Alarm yourself.
This will voi your warranty!
REGULAR MAINTENANCE
This unit has been designed to be as maintenance-free as possible, but
there are a few simple things you must do to keep it working properly
• Test it at least once a week.
•Clean the Smoke/CO Alarm at least once a month; gently vacuum
the outside of the Smoke/CO Alarm using your household vacuum’s
soft brush attachment. Test the Smoke/CO Alarm. Never use water,
cleaners or solvents since they may damage the unit.
• If the Smoke/CO Alarm becomes contaminated by excessive dirt,
dust and/or grime, and cannot be cleaned to avoid unwanted
alarms, replace the unit immediately.
• Relocate the unit if it sounds frequent unwanted alarms. See “Where
This Alarm Should Not Be Installed” for details.
•When the battery back-up becomes weak, the Alarm will “chirp”
about once a minute (the low battery warning). This warning should
last 7 days, but you should replace the battery immediately to
continue your protection. This Alarm must have AC or battery
power to operate. If AC power fails, an the battery is ea
or missing, the Alarm cannot operate.
DO NOT spray cleaning chemicals or insect sprays irectly on or near
the Alarm. DO NOT paint over the Alarm. Doing so may permanently
amage the Alarm.
CHOOSING A REPLACEMENT BATTERY:
This Smoke/CO Alarm requires one standard 9V alkaline battery. The
following alkaline batteries are acceptable as replacements Duracell
#MN1604 or MX1604; Eveready “Energizer” 522. You can also use an
Ultralife 9V lithium battery U9VL-J, U9VL-J-P for longer service life
between battery changes. These batteries are available at many
local retail stores.
• Always use the exact batteries specifie by this User’s Manual.
DO NOT use rechargeable batteries. Clean the battery contacts
an also those of the evice prior to battery installation. Install
batteries correctly with regar to polarity (+ an -).
• Please ispose of or recycle use batteries properly, following
any local regulations. Consult your local waste management
authority or recycling organization to fin an electronics
recycling facility in your area. DO NOT DISPOSE OF BATTERIES
IN FIRE. BATTERIES MAY EXPLODE OR LEAK.
• Keep battery out of reach of chil ren. In the event a battery
is swallowe , imme iately contact your poison control center,
your physician, or the National Battery Ingestion hotline at
202-625-3333 as serious injury may occur.
Actual battery service life depends on the Smoke/CO Alarm and the
environment in which it is installed. All the batteries specified above
are acceptable replacement batteries for this unit. Regardless of the
manufacturer’s suggested battery life, you MUST replace the battery
immediately once the unit starts “chirping” (the “low battery warning”).
WHAT YOU NEED TO KNOW ABOUT CO
WHAT IS CO?
CO is an invisible, odorless, tasteless gas produced when fossil fuels
do not burn completely, or are exposed to heat (usually fire). Electrical
appliances typically do not produce CO.
These fuels inclu e: Wood, coal, charcoal, oil, natural gas, gasoline,
kerosene, and propane.
Common appliances are often sources of CO. If they are not properly
maintained, are improperly ventilated, or malfunction, CO levels can rise
quickly. CO is a real danger now that homes are more energy efficient.
“Air-tight” homes with added insulation, sealed windows, and other
weatherproofing can “trap” CO inside.
SYMPTOMS OF CO POISONING
These symptoms are related to CO POISONING and should be
discussed with ALL household members.
Mil Exposure: Slight headache, nausea, vomiting, fatigue (“flu-like”
symptoms).
Me ium Exposure: Throbbing headache, drowsiness, confusion, fast
heart rate.
Extreme Exposure: Convulsions, unconsciousness, heart and lung
failure. Exposure to Carbon Monoxide can cause brain damage, death.
This CO Alarm measures exposure to CO over time. It alarms if CO
levels are extremely high in a short period of time, or if CO levels reach
a certain minimum over a long period of time. The CO Alarm generally
sounds an alarm before the onset of symptoms in average, healthy adults.
Continued...
POTENTIAL SOURCES OF CO IN THE HOME
Fuel-burning appliances
like: portable heater,
gas or wood burning
fireplace, gas kitchen
range or cooktop, gas
clothes dryer.
Damage or insufficient
venting: corroded or
disconnected water
heater vent pipe, leaking
chimney pipe or flue, or
cracked heat exchanger,
blocked or clogged
chimney opening.
Improper use of appliance/ evice: operating a barbecue grill or
vehicle in an enclosed area (like a garage or screened porch).
Transient CO Problems: “transient” or on-again-off-again CO problems
can be caused by outdoor conditions and other special circumstances.
The following con itions can result in transient CO situations:
1. Excessive spillage or reverse venting of fuel appliances caused by
outdoor conditions such as
• Wind direction and/or velocity, including high, gusty winds. Heavy
air in the vent pipes (cold/humid air with extended periods
between cycles).
• Negative pressure differential resulting from the use of exhaust
fans.
• Several appliances running at the same time competing for limited
fresh air.
• Vent pipe connections vibrating loose from clothes dryers,
furnaces, or water heaters.
• Obstructions in or unconventional vent pipe designs which can
amplify the above situations.
2. Extended operation of unvented fuel burning devices (range, oven,
fireplace).
3. Temperature inversions, which can trap exhaust close to the ground.
4. Car idling in an open or closed attached garage, or near a home.
These conditions are dangerous because they can trap exhaust in your
home. Since these conditions can come and go, they are also hard to
recreate during a CO investigation.
HOW CAN I PROTECT MY FAMILY FROM CO
POISONING?
A CO Alarm is an excellent means of protection. It monitors the air
and sounds a loud alarm before Carbon Monoxide levels become
threatening for average, healthy adults.
A CO Alarm is not a substitute for proper maintenance of home
appliances.
To help prevent CO problems and reduce the risk of CO poisoning
• Clean chimneys and flues yearly. Keep them free of debris, leaves,
and nests for proper air flow. Also, have a professional check for
rust and corrosion, cracks, or separations. These conditions can
prevent proper air movement and cause backdrafting. Never “cap”
or cover a chimney in any way that would block air flow.
• Test and maintain all fuel-burning equipment annually. Many local
gas or oil companies and HVAC companies offer appliance
inspections for a nominal fee.
• Make regular visual inspections of all fuel-burning appliances.
Check appliances for excessive rust and scaling. Also check the
flame on the burner and pilot lights. The flame should be blue.
A yellow flame means fuel is not being burned completely and
CO may be present. Keep the blower door on the furnace closed.
Use vents or fans when they are available on all fuel-burning
appliances. Make sure appliances are vented to the outside. Do
not grill or barbecue indoors, or in garages or on screen porches.
• Check for exhaust backflow from CO sources. Check the draft
hood on an operating furnace for a backdraft. Look for cracks on
furnace heat exchangers.
• Check the house or garage on the other side of shared wall.
• Keep windows and doors open slightly. If you suspect that CO
is escaping into your home, open a window or a door. Opening
windows and doors can significantly decrease CO levels.
In a ition, familiarize yourself with all enclose materials. Rea
this manual in its entirety, an make sure you un erstan what to
o if your CO Alarm soun s.
REGULATORY INFORMATION FOR
SMOKE/CO ALARMS
REGULATORY INFORMATION FOR CO ALARMS
WHAT LEVELS OF CO CAUSE AN ALARM?
Underwriters Laboratories Inc. Standard UL2034 requires residential CO
Alarms to sound when exposed to levels of CO and exposure times as
described below. They are measured in parts per million (ppm) of CO
over time (in minutes).
UL2034 Require Alarm Points*:
• If the alarm is exposed to 400 ppm of CO, IT MUST ALARM
BETWEEN 4 and 15 MINUTES.
• If the alarm is exposed to 150 ppm of CO, IT MUST ALARM
BETWEEN 10 and 50 MINUTES.
• If the alarm is exposed to 70 ppm if CO, IT MUST ALARM
BETWEEN 60 and 240 MINUTES.
*Approximately 10% COHb exposure at levels of 10% to 95% Relative
Humidity (RH).
The unit is designed not to alarm when exposed to a constant level
of 30 ppm for 30 days.
CO Alarms are designed to alarm before there is an immediate life threat.
Since you cannot see or smell CO, never assume it’s not present.
• An exposure to 100 ppm of CO for 20 minutes may not affect
average, healthy adults, but after 4 hours the same level may
cause headaches.
• An exposure to 400 ppm of CO may cause headaches in average,
healthy adults after 35 minutes, but can cause death after 2 hours.
Stan ar s: Underwriters Laboratories Inc. Single and Multiple Station
carbon monoxide alarms UL2034.
According to Underwriters Laboratories Inc. UL2034, Section 1-1.2
“Carbon monoxide alarms covered by these requirements are intended
to respond to the presence of carbon monoxide from sources such as,
but not limited to, exhaust from internal-combustion engines, abnormal
operation of fuel-fired appliances, and fireplaces. CO Alarms are
intended to alarm at carbon monoxide levels below those that could
cause a loss of ability to react to the dangers of Carbon Monoxide
exposure.” This CO Alarm monitors the air at the Alarm, and is
designed to alarm before CO levels become life threatening. This
allows you precious time to leave the house and correct the problem.
This is only possible if Alarms are located, installed, and maintained as
described in this manual.
Gas Detection at Typical Temperature an Humi ity Ranges: The CO
Alarm is not formulated to detect CO levels below 30 ppm typically.
Au ible Alarm: 85 dB minimum at 10 feet (3 meters).
ABOUT SMOKE ALARMS
Battery (DC) operate Smoke Alarms: Provide protection even when
electricity fails, provided the batteries are fresh and correctly installed.
Units are easy to install, and do not require professional installation.
However, they do not provide interconnected functionality.
AC powere Smoke Alarms: Can be interconnected so if one unit
senses smoke, all units alarm. They do not operate if electricity fails.
AC with battery (DC) back-up: will operate if electricity fails, provided
the batteries are fresh and correctly installed. AC and AC/DC units
must be installed by a qualified electrician.
Wireless Interconnecte Alarms: Offer the same interconnected
functionality as with hardwired alarms, without wires. Units are easy
to install and do not require professional installation. They provide
protection even when electricity fails, provided the batteries are fresh
and correctly installed.
Smoke Alarms for Solar or Win Energy users an battery backup
power systems: AC powered Smoke Alarms should only be operated
with true or pure sine wave inverters. Operating this Smoke Alarm with
most battery-powered UPS (uninterruptible power supply) products or
square wave or “quasi sine wave” inverters will amage the Alarm.
If you are not sure about your inverter or UPS type, please consult with
the manufacturer to verify.
Smoke Alarms for the hearing impaire : Special purpose Smoke
Alarms should be installed for the hearing impaired. They include a
visual alarm and an audible alarm horn, and meet the requirements of
the Americans With Disabilities Act. These units can be interconnected
so if one unit senses smoke, all units alarm.
Smoke alarms are not to be use with etector guar s unless the
combination has been evaluated and found suitable for that purpose.
All these Smoke Alarms are designed to provide early warning of fires
if located, installed and cared for as described in the user’s manual,
and if smoke reaches the Alarm. If you are unsure which type of unit to
install, refer to NFPA (National Fire Protection Association) 72 (National
Fire Alarm and Signaling Code) and NFPA 101 (Life Safety Code).
National Fire Protection Association, One Batterymarch Park, Quincy,
MA 02269-9101. Local building codes may also require specific units
in new construction or in different areas of the home.
SPECIAL COMPLIANCE CONSIDERATIONS
This Smoke Alarm is suitable for use in apartments, condominiums,
townhouses, hospitals, day care facilities, health care facilities, boarding
houses, group homes and dormitories provided a primary fire detection
system already exists to meet fire detection requirements in common
areas like lobbies, hallways, or porches. Using this Smoke Alarm in
common areas may not provide sufficient warning to all residents or
meet local fire protection ordinances/regulations.
This Smoke Alarm alone is not a suitable substitute for complete fire
detection systems in places housing many people—like apartment
buildings, condominiums, hotels, motels, dormitories, hospitals, health
care facilities, nursing homes, day care facilities, or group homes of any
kind. It is not a suitable substitute for complete fire detection systems
in warehouses, industrial facilities, commercial buildings, and special-
purpose non-residential buildings which require special fire detection
and alarm systems. Depending on the building codes in your area, this
Smoke Alarm may be used to provide additional protection in these
facilities.
In new construction, most building codes require the use of AC or
AC/DC powered Smoke Alarms only. In existing construction, AC,
AC/DC, or DC powered Smoke Alarms can be used as specified by
local building codes. Refer to NFPA 72 (National Fire Alarm and
Signaling Code) and NFPA 101 (Life Safety Code), local building codes,
or consult your Fire Department for detailed fire protection requirements
in buildings not defined as “households”.
LIMITED WARRANTY
BRK Brands, Inc., ("BRK") the maker of BRK®brand and First Alert®brand products, warrants that for a period of seven years from the date of purchase,
this product will be free from defects in material and workmanship. BRK, at its option, will repair or replace this product or any component of the product
found to be defective during the warranty period. Replacement will be made with a new or remanufactured product or component. If the product is no
longer available, replacement may be made with a similar product of equal or greater value. This is your exclusive warranty.
This warranty is valid for the original retail purchaser from the date of initial retail purchase and is not transferable. Keep the original sales receipt.
Proof of purchase is required to obtain warranty performance. BRK dealers, service centers, or retail stores selling BRK products do not have the right to
alter, modify or any way change the terms and conditions of this warranty.
This warranty does not cover normal wear of parts or damage resulting from any of the following negligent use or misuse of the product, use on improper
voltage or current, use contrary to the operating instructions, disassembly, repair or alteration by anyone other than BRK or an authorized service center.
Further, the warranty does not cover Acts of God, such as fire, flood, hurricanes and tornadoes or any batteries that are included with this unit.
BRK shall not be liable for any incidental or consequential damages caused by the breach of any express or implied warranty. Except to the extent
prohibited by applicable law, any implied warranty of merchantability or fitness for a particular purpose is limited in duration to the duration of the above
warranty. Some states, provinces or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages or limitations on how long
an implied warranty lasts, so the above limitations or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have
other rights that vary from state to state or province to province.
How to Obtain Warranty Service
Service: If service is required, do not return the product to your retailer. In order to obtain warranty service, contact the Consumer Affairs Division at
1-800-323-9005, 7 30 AM - 5 00 PM Central Standard Time, Monday through Friday. To assist us in serving you, please have the model number and
date of purchase available when calling.
For Warranty Service return to: BRK Brands, Inc., 25 Spur Drive, El Paso, TX 79906
Battery: BRK Brands, Inc. make no warranty, express or implied, written or oral, including that of merchantability or fitness for any particular purpose
with respect to battery.
Once a minute, the alarm sounds 3 “chirps”,
and the green light flashes quickly three times. MALFUNCTION SIGNAL. Unit needs to be
replaced. Based on self-diagnostic tests, the
unit has detected a fault.
Units under warranty should be returned to
manufacturer for replacement. See “Limited
Warranty” for details.
The light flashes (GREEN) and the horn sounds
5 “chirps” every minute. END OF LIFE SIGNAL. CO Alarm needs to be replaced. Immediately replace the CO Alarm.
Horn "chirps" about once per minute;
Green "Power/Smoke" LED flashes Green On
for 2 seconds/Off for 2 seconds. (Low Battery
Latch is engaged.)
Low battery warning. Battery is low or missing. Replace the battery, avoid interrupting AC
power.
If your Alarm oes this... It means... You shoul ...
Green light is OFF. Unit will not alarm when you
press the Test/Silence button. Unit may not be receiving any power.
Check the AC power supply. Make sure the
power connector is securely attached to the
alarm. Make sure a fresh 9V battery is installed
to power the battery back-up*.
Green light flashes ON, once a minute (horn is
silent).
Alarm is not receiving AC power. Unit is operating on battery back-up.
Check the AC power supply.
TROUBLESHOOTING GUIDE
Alarm goes back into alarm after you pressed
the Test/Silence button to silence an alarm. Smoke and/or CO levels are still potentially
dangerous. Refer to “If Your Smoke/CO Alarm Sounds” for
details on how to respond to an alarm. If anyone
is feeling ill, EVACUATE your home immediately
and call 911.
If you have any questions that cannot be answered by reading this manual, call Consumer Affairs 1-800-323-9005.
*For a list of acceptable replacement batteries, see “Regular Maintenance.”
Alarm sounds frequently even though no high
levels of smoke or CO are revealed in an
investigation.
The Alarm may be improperly located. Refer to
“Where to Install This Alarm.” Relocate your alarm. If frequent alarms continue, have home rechecked for potential problems.
You may be experiencing an intermittent smoke
or CO problem.
ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the Alarm is installe BEFORE removing it from the mounting bracket or
checking any electrical connections! Failure to turn off the power first may result in serious electrical shock, injury or eath.
For your recor s, please recor :
Date Purchase : _______________________________
Where Purchase : __________________________________________
Date Installe : ____________/____________Month/Year
Replace alarm 7 years after installation. Please write the ate in
the space provi e : _____________/____________Month/Year
The alarm will also provi e an au ible En -of-Life Signal
approximately 7 years after installation to remin you to
replace the unit.
The En -of-Life Signal can be silence for up to 2 ays.
Do not unplug the alarm or remove the batteries until you get
replacement.
TABLE OF CONTENTS
Intro uction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Fire Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4
Where To Install This Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Where This Alarm Should Not Be Installed . . . . . . . . . . . . . . . . . . . .2
Before You Begin Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
How To Install This Smoke/CO Alarm . . . . . . . . . . . . . . . . . . . . . .3-4
Using the Optional Locking Features . . . . . . . . . . . . . . . . . . . . . . .3-5
How Your Smoke/CO Alarm Works . . . . . . . . . . . . . . . . . . . . . . . . . .5
What You Will See an Hear With This Alarm . . . . . . . . . . . . . . . . . .5
If Your Smoke/CO Alarm Soun s . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
What To Do If CO is Detected . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6
What To Do If Smoke is Detected . . . . . . . . . . . . . . . . . . . . . . . . . . .6
“Smart Interconnect” Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Using the Silence Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Latching Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Weekly Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Regular Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
What You Nee To Know About CO . . . . . . . . . . . . . . . . . . . . . . . . .7-8
What is CO? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Symptoms of CO Poisoning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-8
Finding the Source of CO After an Alarm . . . . . . . . . . . . . . . . . . . . .8
Potential Sources of CO in the Home . . . . . . . . . . . . . . . . . . . . . . . .8
How Can I Protect My Family From CO Poisoning? . . . . . . . . . . . . .8
Regulatory Information For Smoke/CO Alarms . . . . . . . . . . . . . .8-10
Regulatory Information for CO Alarms . . . . . . . . . . . . . . . . . . . . . . .8
Regulatory Information for Smoke Alarms . . . . . . . . . . . . . . . . . . . .9
About Smoke Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Special Compliance Considerations . . . . . . . . . . . . . . . . . . . . . . .10
General Limitations Of Smoke/CO Alarms . . . . . . . . . . . . . . . . . . .10
Troubleshooting Gui e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
Limite Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11-12
GENERAL LIMITATIONS OF SMOKE/CO ALARMS
This Smoke/CO Alarm is intended for residential use. It is not intended
for use in industrial applications where Occupational Safety and Health
Administration (OSHA) requirements for Carbon Monoxide Alarms must
be met. The Smoke Alarm portion of this device is not intended to alert
hearing impaired residents. Special purpose Smoke Alarms should be
installed for hearing impaired residents (CO Alarms are not yet available
for the hearing impaired).
Smoke/CO Alarms may not waken all in ivi uals. Practice the
escape plan at least twice a year, making sure that everyone is involved
– from kids to grandparents. Allow children to master fire escape
planning and practice before holding a fire drill at night when they are
sleeping. If children or others do not readily waken to the sound of the
Smoke/CO Alarm, or if there are infants or family members with mobility
limitations, make sure that someone is assigned to assist them in fire
drill and in the event of an emergency. It is recommended that you hold
a fire drill while family members are sleeping in order to determine their
response to the sound of the Smoke/CO Alarm while sleeping and
to determine whether they may need assistance in the event of an
emergency.
Smoke /CO Alarms cannot work without power. Battery operated units
cannot work if the batteries are missing, disconnected or dead, if the wrong
type of batteries are used, or if the batteries are not installed correctly.
AC units cannot work if the AC power is cut off for any reason (open fuse
or circuit breaker, failure along a power line or at a power station, electrical
fire that burns the electrical wires, etc.). If you are concerned about the
limitations of battery or AC power, install both types of units.
This Smoke/CO Alarm will not sense smoke or CO that oes not
reach the sensors. It will only sense smoke or CO at the sensor. Smoke
or CO may be present in other areas. Doors or other obstructions may
affect the rate at which CO or smoke reaches the sensors. If bedroom
doors are usually closed at night, we recommend you install an alarm
device (Combination CO and Smoke Alarm, or separate CO Alarms and
Smoke Alarms) in each bedroom and in the hallway between them.
This Smoke/CO Alarm may not sense smoke or CO on another
level of the home. Example This alarm device, installed on the second
floor, may not sense smoke or CO in the basement. For this reason,
one alarm device may not give adequate early warning. Recommended
minimum protection is one alarm device in every sleeping area, every
bedroom, and on every level of your home. Some experts recommend
battery powered Smoke and CO Alarms be used in conjunction with
interconnected AC powered Smoke Alarms. For details, see “About
Smoke Alarms” for details.
Smoke/CO Alarms may not be hear . The alarm horn loudness
meets or exceeds current UL standards of 85 dB at 10 feet (3 meters).
However, if the Smoke/CO Alarm is installed outside the bedroom, it
may not wake up a sound sleeper or one who has recently used drugs
or has been drinking alcoholic beverages. This is especially true if the
door is closed or only partly open. Even persons who are awake may
not hear the alarm horn if the sound is blocked by distance or closed
doors. Noise from traffic, stereo, radio, television, air conditioner, or
other appliances may also prevent alert persons from hearing the alarm
horn. This Smoke/CO Alarm is not intended for people who are hearing
impaired.
The Alarm may not have time to alarm before the fire itself causes
amage, injury, or eath, since smoke from some fires may not
reach the unit imme iately. Examples of this inclu e persons
smoking in be , chil ren playing with matches, or fires cause
by violent explosions resulting from escaping gas.
This Smoke/CO Alarm is not a substitute for life insurance.
Though this Smoke/CO Alarm warns against increasing CO levels or
the presence of smoke, BRK Brands, Inc. does not warrant or imply in
any way that they will protect lives. Homeowners and renters must still
insure their lives.
This Smoke/CO Alarm has a limite life. Although this Smoke/CO
Alarm and all of its parts have passed many stringent tests and are
designed to be as reliable as possible, any of these parts could fail at
any time. Therefore, you must test this device weekly. The unit should
be replaced immediately if it is not operating properly.
This Smoke/CO Alarm is not foolproof. Like all other electronic
devices, this Smoke/CO Alarm has limitations. It can only detect smoke
or CO that reaches the sensors. It may not give early warning of the
source of smoke or CO is in a remote part of the home, away from the
alarm device.
LATCHING FEATURES
Alarm Latch is activated after an Alarm is exposed to alarm levels of
smoke or carbon monoxide. After smoke or CO levels drop below alarm
levels, the “Smoke/Power” or “CO” Red LED will begin to flash On 2
seconds/Off 2 seconds. It will continue to flash or “latch” until you clear
it by testing the alarm. This feature helps emergency responders,
investigators, or service technicians identify which unit(s) in your home
were exposed to alarm levels of smoke or carbon monoxide. This can
help investigators pinpoint the source of smoke or CO.
Interconnecte Alarms. Latching Alarm Indicator shows which Alarm(s)
in the series were exposed to alarm levels of smoke or carbon monoxide.
The Latching Alarm Indicator stays ON until you clear it, so it can alert
you to an alarm that occurred while you were away from home, even
though smoke or CO present in the air has dropped below alarm levels.
Low Battery Latch is activated when the Alarm is in the "low battery
condition". When this occurs, the Smoke/Power LED flashes Green On
for 2 seconds/Off for 2 seconds. This feature is designed to help you
identify which Alarm needs to have the battery replaced. Although, the
Alarm will sound the low battery chirp approximately once every minute,
sometimes during the initial stages of "low battery", the Alarm will chirp
in greater intervals than one minute, sometimes up to several hours, until
the battery reaches a steady low battery level. This innovative feature
eliminates the frustration of waiting for and/or identifying which unit is
chirping.
Latching Features Note: Without AC Power an running on battery
only, Low Battery Latch or Alarm Latch are only engage for about
15 minutes to conserve power. Low Battery Latch an Alarm Latch
o not operate with a missing battery an no AC Power.
IF YOUR SMOKE/CO ALARM SOUNDS, Continued SYMPTOMS OF CO POISONING, Continued
Why is this important? Because you need to be warned of a potential
CO problem while you can still react in time. In many reported cases of
CO exposure, victims may be aware that they are not feeling well, but
become disoriented and can no longer react well enough to exit the
building or get help. Also, young children and pets may be the first
affected. The average healthy adult might not feel any symptoms when
the CO Alarm sounds. However, people with cardiac or respiratory
problems, infants, unborn babies, pregnant mothers, or elderly people
can be more quickly and severely affected by CO. If you experience
even mild symptoms of CO poisoning, consult your doctor immediately!
FINDING THE SOURCE OF CO AFTER AN ALARM
Carbon monoxide is an odorless, invisible gas, which often makes it
difficult to locate the source of CO after an alarm. These are a few of
the factors that can make it difficult to locate sources of CO
• House well ventilated before the investigator arrives.
• Problem caused by “backdrafting.”
• Transient CO problem caused by special circumstances.
Because CO may dissipate by the time an investigator arrives, it may
be difficult to locate the source of CO. BRK Bran s, Inc. shall not be
obligate to pay for any carbon monoxi e investigation or service
call.
REGULATORY INFORMATION FOR SMOKE ALARMS
RECOMMENDED LOCATIONS FOR SMOKE ALARMS
Installing Smoke Alarms in Single-Family Resi ences
The National Fire Protection Association (NFPA), recommends one
Smoke Alarm on every floor, in every sleeping area, and in every bed-
room. In new construction, the Smoke Alarms must be AC powered and
interconnected. See “Agency Placement Recommendations” for details.
For additional coverage, it is recommended that you install a Smoke
Alarm in all rooms, halls, storage areas, finished attics, and basements,
where temperatures normally remain between 40˚ F (4.4˚ C) and 100˚ F
(37.8˚ C). Make sure no door or other obstruction could keep smoke
from reaching the Smoke Alarms.
More specifically, install Smoke Alarms:
•On every level of your home, including finished attics and basements.
• Inside every bedroom, especially if people sleep with the door partly
or completely closed.
• In the hall near every sleeping area. If your home has multiple
sleeping areas, install a unit in each. If a hall is more than 40 feet
long (12 meters), install a unit at each end.
• At the top of the first-to-second floor stairway, and at the bottom of
the basement stairway.
Specific requirements for Smoke Alarm installation vary from state to
state and from region to region. Check with your local Fire Department
for current requirements in your area. It is recommen e AC or AC/DC
units be interconnecte for a e protection.
AGENCY PLACEMENT RECOMMENDATIONS
Stan ar s: Underwriters Laboratories Inc. Single and Multiple Station
Smoke Alarms 217.
NFPA 72 Chapter 29
“For your information, the National Fire Alarm an Signaling Co e,
NFPA 72, reads as follows ”
29.5.1* Require Detection.
29.5.1.1* Where required by other governing 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 21 ft
(6.4 m) of any door to a sleeping room, with 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)
(Reprinted with permission from NFPA 72®, National Fire Alarm and
Signaling Code Copyright © 2010 National Fire Protection Association,
Quincy, MA 02269. This reprinted material is not the complete and
official position of the National Fire Protection Association, on the
referenced subject which is represented only by the standard in its
entirety), (National Fire Alarm and Signaling Code®and NFPA 72®are
registered trademarks of the National Fire Protection Association, Inc.,
Quincy, MA 02269).
California State Fire Marshal (CSFM)
Early warning detection is best achieved by the installation of fire
detection equipment in all rooms and areas of the household as follows
A Smoke Alarm installed in each separate sleeping area (in the vicinity,
but outside bedrooms), and Heat or Smoke Alarms in the living rooms,
dining rooms, bedrooms, kitchens, hallways, finished attics, furnace
rooms, closets, utility and storage rooms, basements, and attached
garages.
FCC Compliance
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used
in accordance with the instructions, may cause harmful interference to
radio communications.
However, there is no guarantee that the interference will not occur in a
particular installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures
• Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that
of the receiver.
• Consult the dealer or an experienced radio or TV technician for
help.
Warning: Changes or modifications to the product, not expressly
approved by First Alert / BRK Brands, Inc., could void the user’s
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.