USER’S MANUAL

SMOKE AND FIRE* ALARMS

AC Powered Ionization Smoke Alarm with

Battery Back-Up and Silence Feature

Models 4120SB, SA4121B

Input: 120V AC ~ , 60Hz, 0.05A

AC Powered Ionization Smoke Alarm with Battery Back-Up

Model 4120B

Input: 120V AC ~ , 60Hz, 0.05A

AC Powered Ionization Smoke Alarm

Models 4120, SA4120

Input: 120V AC ~, 60Hz, 0.05A

IMPORTANT!

PLEASE READ CAREFULLY AND SAVE.

This user’s manual contains important information about your Smoke Alarm’s operation. If you are installing this Smoke Alarm for use by others, you must leave this manual—or a copy of it—with the end user.

 

 

Models SA4121B,

 

 

SA4120, 4120B,

M08-0030-000 Q 11/02

 

4120, 4120SB

THIS USER’S MANUAL HAS BEEN RESIZED TO PRINT OUT ON 8-1/2 x 11” PAGES.

BLACK page numbers reference the original printed document.

RED page numbers reference this web version.

TABLE OF CONTENTS

Fire Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Before You Install This Smoke Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

How To Install This Smoke Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Locking Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4/3-4

Understanding the Indicator Lights and Alarm Horn Patterns . . . . . . . . .4

Weekly Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Regular Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

If This Smoke Alarm Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

What To Do In Case Of Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Using the Silence Feature (Models SA4121B, 4120SB) . . . . . . . . . . . . . . .5

If You Suspect a Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Recommended Locations For Smoke Alarms . . . . . . . . . . . . . . . . . . 6/5-6

Locations To Avoid For Smoke Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

About Smoke Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7/6

Special Compliance Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . .7/6

Limitations of Smoke Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-7/7

All Rights Reserved. © 2002 BRK Brands, Inc.

BRK Brands, Inc., 3901 Liberty Street Road, Aurora, IL 60504-8122

Consumer Affairs: (800)323-9005 • www.firstalert.com • www.brkelectronics.com

*All First Alert® and BRK® Smoke Alarms conform to regulatory requirements, including UL217 and are designed to detect particles of combustion. Smoke particles of varying number and size are produced in all fires.

Ionization technology is generally more sensitive than photoelectric 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 parti- cles, 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 of your home.

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 elec- trical appliances in good condition and don’t overload electrical circuits; 5) Keep stoves, barbecue grills, fire- places 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.

BEFORE YOU INSTALL THIS SMOKE ALARM

IMPORTANT! Read “Recommended Locations for Smoke Alarms” and “Locations to Avoid for Smoke Alarms” before beginning. This unit monitors the air, and when smoke reaches its sensing chamber, it alarms. It can give you more time to escape before fire spreads. This unit can ONLY give an early warning of devel- oping fires if it is installed, maintained and located where smoke can reach it, and where all residents can hear it, as described in this manual. This unit will not sense gas, heat, or flame. It cannot prevent or extin- guish fires.

Understand The Different Type of Smoke Alarms

Battery powered or electrical? Different Smoke Alarms provide different types of protection. See “About Smoke Alarms” for details.

Know Where To Install Your Smoke Alarms

Fire Safety Professionals recommend at least one Smoke Alarm on every level of your home, in every bed- room, and in every bedroom hallway or separate sleeping area. See “Recommended Locations For Smoke Alarms” and “Locations To Avoid For Smoke Alarms” for details.

Know What Smoke Alarms Can and Can’t Do

A Smoke Alarm can help alert you to fire, giving you precious time to escape. It can only sound an alarm once smoke reaches the sensor. See “Limitations of Smoke Alarms” for details.

Check Your Local Building Codes

This Smoke Alarm is designed to be used in a typical single-family home. It alone will not meet requirements for boarding houses, apartment buildings, hotels or motels. See “Special Compliance Considerations” for details.

ELECTRICAL SHOCK HAZARD. Turn off the power to the area where the Smoke Alarm is installed before removing it from the mounting bracket. Failure to turn off the power first may result in serious electrical shock, injury or death.

This unit will not alert hearing impaired residents. It is recommended that you install special units which use devices like flashing strobe lights to alert hearing impaired residents.

Installation of this unit must conform to the electrical codes in your area; Article 760 of NFPA 70 (NEC), NFPA 72, NFPA 101; SBC (SBCCI); UBC (ICBO); NBC (BOCA); OTFDC (CABO), and any other local or building codes that may apply. Wiring and installation must be performed by a licensed elec- trician. Failure to follow these guidelines may result in injury or property damage.

This unit must be powered by a 24-hour, 120VAC pure sine wave 60Hz circuit. Be sure the circuit can- not be turned off by a switch, dimmer, or ground fault circuit interrupter. Failure to connect this unit to a 24-hour circuit may prevent it from providing constant protection.

This Smoke Alarm must have AC or battery power to operate. On Models SA4121B and 4120B/SB Only:

If the AC power fails, battery back-up will allow the alarm to sound for at least 4 minutes. If AC power fails and the battery is weak, protection should last for up to 7 days. If AC power fails and the battery is dead or missing, the alarm cannot operate.

Never disconnect the power from an AC powered unit to stop an unwanted alarm. Doing so will dis- able the unit and remove your protection. In the case of a true unwanted alarm open a window 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 operated unit to stop an unwanted alarm (caused by cook- ing smoke, etc.). Instead open a window or fan the smoke away from the unit. The alarm will reset automatically.

Connect this unit ONLY to other compatible units. See “How To Install This Smoke Alarm” for details. Do not connect it to any other type of alarm or auxiliary device. Connecting anything else to this unit may damage it or prevent it from operating properly.

On Models SA4121B, 4120B/SB Only: The battery compartment will not close unless a battery is installed. This warns you the unit will not operate under DC power without a battery.

Do not stand too close to the unit when the alarm is sounding. It is loud to wake you in an emer- gency. 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 and prevent the unit from operating properly.

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BRK electronic SA4121B user manual USER’S Manual, Table of Contents, Fire Safety Tips, Before YOU Install this Smoke Alarm

SA4121B specifications

BRK electronic SA4121B is a state-of-the-art smoke alarm designed to enhance home safety and ensure peace of mind for residents. This innovative device is engineered with advanced technology and superior features to provide reliable performance and timely alerts in the event of a fire, making it an essential component of any home safety plan.

One of the standout characteristics of the SA4121B is its photoelectric sensing technology. This technology is particularly effective in detecting smoldering fires that produce a large amount of smoke before bursting into flames. Unlike ionization detectors, which are better at sensing fast-flaming fires, this smoke alarm offers a well-rounded approach to fire detection, covering a wider spectrum of potential fire hazards.

The SA4121B is equipped with a loud 85-decibel alarm that ensures that every member of the household is alerted when smoke is detected, even in the noisiest environments. This high-decibel alarm can awaken even deep sleepers, significantly increasing the chances of a prompt evacuation in case of an emergency.

Another key feature of the SA4121B is its easy installation and maintenance. The smoke alarm is designed for user-friendly operation, coming with a simple mounting bracket that allows for quick attachment to ceilings or walls. Additionally, the device is powered by a long-life lithium battery, which eliminates the hassle of frequent battery replacements. This battery typically lasts up to ten years, providing worry-free operation during that time.

The SA4121B also includes a test button, which enables users to easily conduct regular functionality checks. This feature ensures that the smoke alarm is always operating optimally, allowing homeowners to rest assured that their safety equipment is reliable and effective.

Moreover, the sleek and modern design of the SA4121B allows it to blend seamlessly into any home décor, ensuring that safety devices do not detract from the aesthetic appeal of living spaces. The device is also lightweight, making it a convenient option for various installation scenarios.

Lastly, the BRK electronic SA4121B smoke alarm complies with relevant safety standards, ensuring it meets or exceeds the safety performance expectations. It is a practical choice for anyone seeking to enhance their home's fire safety profile, combining reliability, ease of use, and innovative technology in one compact unit.