BRK electronic 4120 AC, 4120SB user manual HOW to Install this Smoke Alarm, Parts of This Unit

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HOW TO INSTALL THIS SMOKE ALARM

This unit is designed to be mounted on any standard wiring junction box up to a 4-inch size, on either the ceiling or wall. Read “Where to Install Smoke Alarms” and “Where Not To Install Smoke Alarms” before you begin installation. If a junction box is not already in place, install one using standard #12 or #14 gauge

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solid copper Appliance Wiring Material (AWM).

BATTERY BACK-UP ON

MODELS 4120SB AND 4120B ONLY:

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.

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When the battery is activated, the red light will shine continuously for 5-10 seconds, then begin to flash about once a minute.

Test the battery back-up. Press and hold the test button on the cover until the alarm sounds.

The Parts of This Unit

1Mounting Bracket

2Mounting Slots and Screws

3Locking Pins (break out of bracket)

4Hot (Black) AC Wire

5Neutral (White) AC Wire

6Interconnect Wire

7Latch to Open Battery Compartment

8Swing-Out Battery Compartment

9Quick-Connect Power Connector

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Contents Smoke Alarms AC Powered Ionization Smoke Alarm CatUSER’S Manual Table of Contents Where to Install Smoke Alarms Agency Placement Recommendations More specifically, install Smoke AlarmsInstalling Smoke Alarms in Mobile Homes Nfpa 72 National Fire CodeFor best performance, do not install the unit California State Fire Marshal CsfmFollow the installation recommendations below Avoiding Dead AIR SpacesIMPORTANT! Read Before YOU Install this Smoke Alarm Understanding the Indicator Lights and Alarm Horn Patterns Read Before You Install This Smoke AlarmImportant Installation Parts Locking FeaturesTools you will need To Lock The Battery Compartment Models 4120B and 4120SB Only To Unlock the Battery Compartment To Lock The Mounting BracketHOW to Install this Smoke Alarm Battery BACK-UP on Models 4120SB and 4120B onlyParts of This Unit Installing a Single STAND-ALONE Smoke Alarm To install this unit, follow these stepsInterconnecting Multiple Smoke Alarms Interconnecting Multiple Smoke Alarms To install and interconnect multiple alarmsTesting and Maintenance Weekly TestingRegular Maintenance Beeps, pause, 3 beeps, pauseIf this Smoke Alarm Sounds Responding To An AlarmModel 4120SB only Using the Silence Feature To silence Smoke Alarms in an interconnected seriesProtecting Your Family from Fire If Your Smoke Alarm Needs Service What to do in Case of FireTroubleshooting Special Compliance Considerations Single-Family ResidenceInstitutions Hotels/MotelsLimitations of Smoke Alarms Year Limited Warranty How to Obtain Warranty Service

4120 AC, 4120SB specifications

The BRK Electronics 4120SB and 4120AC are advanced smoke alarms designed to enhance safety in residential and commercial settings. These alarm models integrate innovative technologies and features that provide reliable performance and peace of mind to users.

The 4120SB model is a battery-operated smoke alarm, making it ideal for applications where hardwired alarms may not be feasible. Utilizing a photoelectric sensor, it is designed to detect smoldering fires, which often produce dense smoke without high flames. This increases the likelihood of early detection, allowing occupants crucial time to evacuate safely. On the other hand, the 4120AC is a hardwired option that connects directly to the building’s electrical system, ensuring uninterrupted power supply while incorporating a battery backup. This guarantees continuous operation, even during power outages.

Both models are equipped with a loud 85-decibel alarm, ensuring that residents are alerted promptly in case of smoke detection. The devices also feature a test/silence button, allowing users to easily test the functionality of the alarm or silence it in the event of a false alarm caused by cooking fumes.

Safety is further enhanced by the incorporation of a Tamper-resistant feature that prevents unauthorized removal of the alarm from its mounted location. The alarm also includes a LED indicator that provides a visual cue of the unit’s operational status. When the unit is powered on and functioning correctly, the green LED will blink periodically. In contrast, a continuous red LED indicates an active alarm condition.

Both the 4120SB and 4120AC are designed for user-friendly installation. The units come with clear instructions and mounting hardware, allowing homeowners and professionals to easily install them in their desired locations. The compact design ensures that they can fit seamlessly into a variety of interiors.

Overall, the BRK Electronics 4120SB and 4120AC represent robust solutions for smoke detection. Their integration of advanced photoelectric technology, user-friendly features, and essential safety mechanisms make them essential components of any fire safety strategy, ensuring that homes and businesses are better protected against the threat of fire. Investing in these smoke alarms not only meets safety regulations but also fosters a proactive approach to fire safety that can save lives.
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