BRK electronic 4120B User Manual
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BRK electronic 4120B User Manual

BRK electronic 4120B User Manual

Brk electronics smoke alarm user's manual 4120b, 4120sb, m06-2016-007
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AC Powered Ionization Smoke Alarm
with Battery Back-Up and
Silence Feature
Cat. 4120SB
Input: 120V AC, 60Hz, 0.5A
Ionization smoke alarms are generally more effective at detecting 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 smoke alarms are generally more effective at detecting smoldering fires which 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.
Model
4120B
4120SB
User's Manual

Smoke Alarms

AC Powered Ionization Smoke Alarm
with Battery Back-up
Cat. 4120B
Input: 120V AC, 60Hz, 0.5A
M06-2016-007 06/00

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  • Page 1: Smoke Alarms

    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. Model 4120B 4120SB AC Powered Ionization Smoke Alarm with Battery Back-up Cat. 4120B Input: 120V AC, 60Hz, 0.5A M06-2016-007 06/00...

  • Page 2: Table Of Contents

    Installing a Single (Stand Alone) Smoke Alarm ......11 Interconnecting Multiple Smoke Alarms . . . 12 Testing and Maintenance .

  • Page 3: Where To Install Smoke Alarms

    Installing Smoke Alarms in Single-Family And Multi-Family Residences The National Fire Protection Association (NFPA), recommends one smoke alarm on every floor, in every sleeping area, and in every bedroom. In new construction, the smoke alarms must be AC powered and interconnected. See “Agency Placement Recommendations”...
  • Page 4 In new construction a smoke alarm shall also be installed in each sleeping room. Chapter 2 also reads as follows: 2-2.2.1: In new construction, where more than one smoke alarm is required by 2-2.1, alarms shall be so arranged that...

  • Page 5: Where Not To Install Smoke Alarms

    • In very dusty, dirty, or greasy areas. Do not install a smoke alarm directly over the stove or range. Clean a laundry room unit frequently to keep it free of dust or lint. •...
  • Page 6 “dead air” spaces. On a peaked, gabled, or cathedral ceiling, install the first smoke alarm within 3 feet (0.9 meters) of the peak of the ceiling, measured horizontally. Additional smoke alarms may be required depending on the length, angle, etc.

  • Page 7: Important! Read Before You Install This Smoke Alarm

    Important! Read Before You Install This Smoke Alarm Read “Where To Install Smoke Alarms” and “Where Not To Install 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.

  • Page 8: Understanding The Indicator Lights And Alarm Horn Patterns

    NOTE: When power is applied, unit(s) may alarm momentarily. *When any smoke alarm in an interconnected series triggers an alarm, its red LED will flash rapidly. The red LEDs will remain OFF on any remaining alarms in the series. This feature helps responders identify which unit(s) triggered the alarm.

  • Page 9: Optional Locking Features

    These smoke alarms have two separate locking features: one to lock the battery compartment, and the other to lock the smoke alarm to the mounting bracket. You can choose to use either feature independently, or use them both.
  • Page 10 WARNING! Always discharge the branch circuit before servicing an AC or AC/DC smoke alarm. First, turn off the AC power at the circuit breaker or fuse box. Next, remove the battery from smoke alarms with battery back-up.
  • Page 11 2. Insert the locking pin into the lock located on the pivoting hinge of the battery door. 3. When you attach the smoke alarm to the mounting bracket, the locking pin’s head will fit into a notch on the bracket.

  • Page 12: How To Install This Smoke Alarm

    How To Install This Smoke Alarm This unit is designed to be mounted on any standard wiring junction box up to a 4-inch diagonal size, on either the ceiling or wall. Read “Where to Install” and “Where Not To Install” smoke alarms before you begin installation.

  • Page 13: Installing A Single (Stand Alone) Smoke Alarm

    4. Position the base of the alarm over the mounting bracket and turn. The alarm can be positioned over the bracket every 60°. Turn the smoke alarm clockwise (right) until the unit is in place. 5. If you are only installing one unit, restore power to the junction box.

  • Page 14: Interconnecting Multiple Smoke Alarms

    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: ® BRK Electronics Smoke Alarms 100S, 2002RAC, 4120B, 4120SB, 4919, 5919, 5919TH, 86RAC; ® BRK Electronics Heat Alarm HD6135F; and ® First Alert Smoke Alarms SA4120B, SA4121B, SA4919B, SA86B, SA100B.
  • Page 15 6. Make sure each unit is receiving AC power. Under normal operation, the green power indicator light will shine continuously. 7. Test each smoke alarm. Press and hold the test button until the unit alarms. When testing a series of interconnected units you must test each unit individually.

  • Page 16: Testing And Maintenance

    Underwriters Laboratories, Inc. (UL). If you choose to use an aerosol smoke product to test the smoke alarm, be certain to use one that has been Listed to Underwriters Laboratories, Inc. Safety Standards, and use it only as directed.

  • Page 17: If This Smoke Alarm Sounds

    1-2 years; most Lithium batteries have an average service life of 6-10 years. Actual service life depends on the smoke alarm and the environment in which it is installed. All the batteries specified above are acceptable replacement batteries for this unit.

  • Page 18: Using The Silence Feature

    Cat. 4120SB Only— Using The Silence Feature The silence feature on this unit can temporarily quiet an unwanted alarm for several minutes. CAUTION! The silence feature does not disable the unit—it makes it temporarily less sensitive to smoke. For your safety, if smoke around the unit is dense enough to suggest a potentially dangerous situation, the unit will stay in alarm or may re-alarm quickly.

  • Page 19: Protecting Your Family From Fire

    Teach them to stay close to the floor and crawl if necessary. Install at least one smoke alarm on every level of your dwelling and/or dwelling unit, in every bedroom, and in every sleeping area. Keep alarms clean, and test them weekly.

  • Page 20: What To Do In Case Of Fire

    Needs Service CAUTION! Always discharge the branch circuit before servicing an AC or AC/DC smoke alarm. First, turn off the AC power at the circuit breaker or fuse box. Next, remove the battery from smoke alarms with battery back-up. Finally, press and hold the test button for 5- 10 seconds to discharge the branch circuit.

  • Page 21: Troubleshooting

    • Check if you accidentally pushed the test button. You experience frequent • Check the location of the smoke alarm. The smoke alarm may be too unwanted alarms (like in close to a kitchen, cooking appliance, or steamy bathroom. (See “Where response to cooking To Install Smoke Alarms.”)

  • Page 22: Special Compliance Considerations

    Special Compliance Considerations This unit alone is not a suitable substitute for complete fire detection systems in places housing many people—like apartment buildings, condominiums, hotels, motels, dormitories, hospitals, long-term health care facilities, nursing homes, day care facilities, or group homes of any kind—even if they were once single- family homes.

  • Page 23: Limitations Of Smoke Alarms

    Smoke alarms have a limited life.The unit should be replaced immediately if it is not operating properly. You should always replace a smoke alarm after 10 years from date of manufacture. See back of smoke alarm for manufacture date.

  • Page 24: 10-Year Limited Warranty

    10-YEAR LIMITED WARRANTY Coverage: BRK Brands, Inc. warrants its enclosed smoke alarm to be free from defects in materials and workmanship under normal use for a period of ten years from the date of purchase. During the first year after the date of purchase, BRK Brands, Inc. will replace any defective smoke alarm without charge.

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M06-2016-0074120sb

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