How to Guide

ManualsBrandsFirst Alert ManualsCombination Smoke Carbon Monoxide Detectors10-Year Battery AC Hardwired Combination Smoke and Carbon Monoxide Detector

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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. 464+2,.4)615'*,&4

0 3466-+.356%3531&46-3 15+21356!*+. ( One alarm protects

against two deadly household threats.

%3)26!'',.+246-+.356%3531&46045)3.6Advanced electroch

emical

CO sensor technology.

"524**1$4526045)15$6#4'53*3$ designed to help reduce unwanted or

nuisance alarms.

0 +.26"524.'3554'2 can be interconnected to BRK Smoke Alarms.

One interconnect wire carries both smoke and CO alarm signals.

015$*46,22356#4)201*45'4 eliminates confusion. Depending on what

mode the alarm is in, pushing the button provides different functions

such as testing the alarm, silencin

g the alarm, re-testing the alarm

when in silence and clearing the Latching feature.

#3601*45'464+2,.4)(6Temporarily silence low battery chirp for up to

eight hours before replacing low battery or silence an unwanted alarm

for several minutes.

#36+2'15$64+2,.4)( Alarm Latch: Easily identifies initiating alarm

even after alarm condition has subsided. Low Battery Latch: Identifies

which unit is in low

battery condition.

4.4'26%3,5260)24 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.

5&63614601$5+*( Provides audible and visual confirmation alarm

needs to be replaced.

As compared to other sensing technologies

Distributed by BRK Brands, I

nc.

3901 Liberty Street Road, Aurora, IL 60504-8122

Consumer Affairs: (800) 323-9005

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. Sm

oke 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

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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 inc

lude

cigarettes burning in couches or bedding.

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  

INSTALLATION

WHERE TO INSTALL THIS ALARM

$GHGDBDNAK-MJI:MN<KJN6DK2MN?EIJDF, 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).

&KJN97N?EIJDF+ the National Fire Protection Association (NFPA)

recommends that a CO Alarm shoul

d 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.

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• On every level of your home, including finished attics and basements.

• Inside every bedroom, especially if people sleep wit

h 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).

)MAKDDMH@M@N%EIAMDMHL

• 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.

*731/ For any location, make sure no door or other obstruction could

keep carbon monoxide or smoke from reaching the Alarm.

"5)2+**15$60 34-/6!*+. )6156%31*463 4)

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 b

uilt 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

,KN*73NEKAILMNLCGFN6DK2M(97N?EIJD/

• In garages, kitchens, furnace rooms, crawl spaces and unfinished

attics. Avoid extremely dusty, dirty or greasy areas.

• Where combustio

n 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 ceilin

g 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 1

2 inches (305 mm) away from fluorescent lights.

Electrical “noise” can interfere with the sensor.

• In “dead air” spaces. See “Avoiding Dead Air Spaces”.

?7.,.*N,1?,N?.)N6%?916

“Dead air” spaces may prevent smoke from reaching the Smoke/CO

Alarm. To avoid dead air spaces, follow installation recommendations

below.

7HNAMGEGH:F+ 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.

&KJN8IEENDKBHLGH: (if allowed by building codes), t

he top edge of

Smoke/CO Alarms should be placed between 4 inches (102 mm) and

12 inches (305 mm) from the wall/ceiling line.

7HNIN>MI2M@+N:I5EM@+NKJNAILCM@JIENAMGEGH:+ 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

tails on requirements for sloped or peaked ceilings.

-35215,4&(((

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.

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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.

*731/ 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.”

1 Mounting Bracket

2 Mounting Slot and Screw

3 Locking Pins (break out of

bracket)

4 Hot (Black) AC Wire

5 Neutral (White) AC Wire

6 Interconnect Wire (Orange)

7 Lever to Open Battery

Compartment

8 Swing-Out Battery

Compartment

9 Quick-Connect Power

Not Included

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1. Remove the mounting bracket from the base. Position the s

crew

slots on the mounting bracket over the screws in the junction box.

Tighten the screws.

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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.

Position the base of the Smo

ke/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.

63?*,N?07*1N?0?)$N7*0/

• 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. .LNGFNBFM@N<KJN

GHLMJAKHHMALNKHE=;

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• Co

nnect 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 th

e orange interconnect wire. Never cross hot

and neutral wires between interconnected Alarms.

SPECIAL REQUIREMENTS FOR INTERCONNECTED ALARMS

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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.

,BJGH:NIHN?EIJD/

On Initiating Alarm(s) – Red LED(s) flashes (flash) rapidly

On All Other Alarms – Red LED is Off

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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

9KD>ILG5EMN.HLMJAKHHMALM@NHGLF

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: 1.)26!*4.2



6DK2MN?EIJDN$K@MEF SA4120, SA4121B, SA100B,

SA520 and 



6DK2MN?EIJDN$K@MEF 9120, 9120B, SC6120B,

SC9120B, 7010, 7010B, 7020B, SC7010B, SC7010BV, 100S, 4120,

4120B, 4120SB; 



97N?EIJDN$K@MEF CO5120BN, CO5120PDBN;





'MILN?EIJDN$K@MEFNHD6135F and HD6135FB; 



?B GEGIJ=

,M-GAMFN$K@MEF RM3 and RM4 (Relay Modules), SL177 (Strobe Light).

See www.brkelectronics.com for most current interconnect list.

.HLMJAK

HHMALM@NBHGLFNDBFLNDMMLN?00NK<NLCMN<KEEK8GH:NJMBGJMDMHLF/

• 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 comm

only 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.

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. ?93.?3.*

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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.

,7N*73

JMDK-MNLCMN5ILLMJ=NIALG-ILGKHNLI5NBHLGEN?9N>K8MJNGFNLBJHM@NKHNLK

AKHFMJ-MN5ILLMJ=N>K8MJ;

8. 6GH:EMN6LILGKHN?EIJDF/ Test each Alarm. Press and hold the

Test/Silence button until you hear the acknowle

dge “chirp” or the

unit alarms.

.HLMJAKHHMALM@N?EIJDF/ 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. KBNDBFLNLMFLNMIAC

?EIJDNGH@G-G@BIEE=NLKNACMA2NG<NLCMN?EIJDNGFN<BHALGKHGH:N>JK>MJE=;

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.

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)

63?*,N?07*1N?0?)$N7*0/

• If you are only installing one unit, restore power to the junction box.

.*31)97**1931,N?0?)$6N7*0/

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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

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GHNFGH:EM!<IDGE=NCKBFMCKE@FN8CMJMNBHIBLCKJGM@N5ILLMJ=NKJNIEIJD

JMDK-IENGFNHKLNINAKHAMJH;

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.

3KKEFN=KBN8GEENHMM@/ • Needle-nose pliers or utility knife

• Standard/Flathead screwdriver.

USING THE OPTIONAL LOCKING FEATURES

THE BATTERY COMPARTMENT LOCK

37N079N3'1N#?331)N97$%?)3$1*3/

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.

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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

37N?93.?31N3'1N#)?913N079/

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.

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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.

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3'1N#)?913N079

Insert the flathead screwdriver

between the locking pin and the

lock, and pry the pin ou

t of the lock.

37N*079N3'1N#?331)N97$%?)3$1*3/

Once the Smoke/CO Alarm is installed, you must disconnect it from the AC

power before unlocking the battery compartment.

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FCKA2+NGHBJ=NKJN@MILC;

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 loc

king 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.

IF YOUR SMOKE/CO ALARM SOUNDS

WHAT TO DO IF CARBON MONOXIDE IS DETECTED

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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

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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 ar

e 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.

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“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.

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USER’S MANUAL

Smoke & Carbon

Monoxide Alarm

?9N%K8MJM@N6DK2MN

9IJ5KHN$KHK G@MN?EIJDN

8GLCN#ILLMJ=N#IA2!B>+

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0ILACGH:N?EIJD

Model SC9120B

Input: 120V AC ~

60 Hz, 0.09A

.$%7)3?*3N%01?61N)1?,N9?)1&00N?*,N6?1

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

M08-0094-030 "NNN04/14

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.

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H@MJN*KJDIEN7>MJILGKHF

'KJH/ Silent

%K8MJ(6DK2MN01,/ Constant Green

97N01,/ Off

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'KJH/ 3 beeps, pause, 3 beeps

%K8MJ(6DK2MN01,/ AC Power (LED Green); Battery Power (LED off)

97N01,/ Off, followed by

'KJH/ 4 beeps, pause, 4 beeps

%K8MJ(6DK2MN01,/ Turns back On

97N01,/ Flashes Red in sync with the horn pattern

.<N#ILLMJ=N#MAKDMFN0K8NKJNGFN$GFFGH:

'KJH/ chi

rps once a minute

%K8MJ(N6DK2MN01,/ 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.

97N01,/ Off

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'KJH/ 3 chirps every minute

%K8MJ(6DK2MN01,/ Green LED 3 Flashes approx. once a minute

97N01,/ Off

?EIJDNCIFNJMIACM@NGLFN1H@NK<N0G<M

'KJH/ 5 chirps every

minute

%K8MJ(6DK2MN01,/ Green LED 5 Flashes approx. once a minute

97N01,/ Off

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'KJH/ 4 beeps, pause, 4 beeps

%K8MJ(6DK2MN01,/ On

97N01,/ 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).

6DK2MNGFN,MLMALM@

'KJH/ 3 beeps, pause, 3 beeps

%K8MJ(6

DK2MN01,/ 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).

97N01,/ Off

6DK2MN?EIJDNGFN6GEMHAM@

'KJH/ Off

%K8MJ(6DK2MN01,/ Flashes Red

97N01,/ Off

97N?EIJDNGFN6GEMHAM@

'KJH/ Off

%K8MJ(6DK2MN01,/ AC Power (LED Green); Battery Power (LED off)

97N01,/ Flashes Red

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"NDGHBLMFNLKNAKHFMJ-MN>K8MJ;N0K8N#ILLMJ=N0ILACNIH@N?EIJDN0ILAC

@KNHKLNK>MJILMN8GLCNINDGFFGH:N5ILLMJ=NIH@NHKN?9N%K8MJ;

USING THE SILENCE FEATURES

*M-MJNJMDK-MNLCMN5ILLMJGMFNLKNBGMLNIHNBH8IHLM@NIEIJD;N)MDK-GH:

LCMN5ILLMJGMFN@GFI5EMFNLCMNIEIJDNIH@NJMDK-MFN=KBJN>JKLMALGKH;

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 Si

lence cannot be activated and alarm with continue

to chirp approximately once per minute. However, JM>EIAMNLCMN5ILLMJGMF

IFNFKKHNIFN>KFFG5EM+ to maintain protection in event of a power outage.

3KN@MIALG-ILMNLCGFN<MILBJM/NPress 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).

3KNFGEMHAMN?EIJDFNGHNIHNGHLMJAKHHMALM@NFMJGMF/

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.

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6GEMHAM@

CMHNLCMN97N?EIJDNGFN

6GEMHAM@

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. After

approximately 2-3 weeks the End of Life warning cannot be silenced.

Printed in Mexico

M08-0094-157176 K1 03/17

2017

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.



6

7

}

Mounting Bracket Lock

Battery Drawer Lock

Locking Pin

Inc.

•

BRK Brands, Inc. is a subsidiary of Newell Brands Inc. (NYSE:NWL)

•

First Alert

is registered trademark of The First Alert Trust

•

3901 Liberty

Street Road, Aurora, IL 60504-8122

•

Consumer Affairs: (800) 323-9005

•

www.rstalert.com

•

www.brkelectronics.com

Summary of content (2 pages)

PAGE 1
USER’S MANUAL Smoke & Carbon Monoxide Alarm ?9N%K8MJM@N6DK2MN 9IJ5KHN$KHK G@MN?EIJDN 8GLCN#ILLMJ=N#IA2!B>+ 6GEMHAMN&MILBJMNIH@N 0ILACGH:N?EIJD INSTALLATION Model SC9120B Input: 120V AC 60 Hz, 0.09A ~ WHERE TO INSTALL THIS ALARM .$%7)3?*3 N%01?61N)1?,N9?)1& 00 N?*,N6? 1 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. 0.
PAGE 2
" 6 / 60%/ -/6! ! %60/ 0 6-35215,4& LATCHING FEATURES ?EIJDN0ILAC 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 6DK2M(%K8MJ or 97 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.