BRK electronic 4120SB, 4120 AC user manual Interconnecting Multiple Smoke Alarms

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Interconnecting Multiple Smoke Alarms

A}

6￿

7￿} B

 

8

5

5

4

4

3

3

2

 

1

1

AUnswitched 120V AC 4 Wire Nut 60 Hz Source

B

To Additional Units

5

Junction Box

 

Maximum = 18 (Max.

 

 

 

12 Smoke Alarms)

 

 

 

 

 

 

1

Smoke Alarm

6

Neutral (White) AC Wire

 

 

 

 

2

Ceiling or Wall

7

Interconnect Wire

 

 

 

 

3

Power Connector

8

Hot (Black) AC Wire

To install and interconnect multiple alarms:

1.Remove mounting bracket from the base. Position screw slots on mounting bracket over screws in the junction box. Tighten screws.

2.Strip off about 1/2” (12 mm) of the plastic coating on the orange wire on the power connector.

3.Using wire nuts, connect the power connector to the household wiring.

•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.

•Connect the orange wire on the power connector to the interconnect 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 Alarms.

4.Plug the power connector into the back of the Smoke Alarm.

5.Position the base of the Smoke Alarm over the mounting bracket and turn. The Alarm can be positioned over the bracket every 60°. Turn the unit clockwise (right) until the unit is in place.

ELECTRICAL SHOCK HAZARD. Do not restore power until all Smoke Alarms are completely installed. Restoring power before installation is complete may result in serious electrical shock, injury or death.

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. Make sure all units alarm when each one is tested.

NOTE: When power is applied, unit(s) may alarm momentarily.

If any unit in the series does not alarm, TURN OFF POWER and recheck connections. If it does not alarm when you restore power, replace it immediately.

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Contents Smoke Alarms AC Powered Ionization Smoke Alarm CatUSER’S Manual Table of Contents Where to Install Smoke Alarms Nfpa 72 National Fire Code Agency Placement RecommendationsMore specifically, install Smoke Alarms Installing Smoke Alarms in Mobile HomesCalifornia State Fire Marshal Csfm For best performance, do not install the unitAvoiding Dead AIR Spaces Follow the installation recommendations belowIMPORTANT! Read Before YOU Install this Smoke Alarm Read Before You Install This Smoke Alarm Understanding the Indicator Lights and Alarm Horn PatternsImportant Installation Parts Locking FeaturesTools you will need To Lock The Battery Compartment Models 4120B and 4120SB Only To Lock The Mounting Bracket To Unlock the Battery CompartmentHOW to Install this Smoke Alarm Battery BACK-UP on Models 4120SB and 4120B onlyParts of This Unit To install this unit, follow these steps Installing a Single STAND-ALONE Smoke AlarmInterconnecting Multiple Smoke Alarms To install and interconnect multiple alarms Interconnecting Multiple Smoke AlarmsBeeps, pause, 3 beeps, pause Testing and MaintenanceWeekly Testing Regular MaintenanceResponding To An Alarm If this Smoke Alarm SoundsTo silence Smoke Alarms in an interconnected series Model 4120SB only Using the Silence FeatureProtecting Your Family from Fire What to do in Case of Fire If Your Smoke Alarm Needs ServiceTroubleshooting Hotels/Motels Special Compliance ConsiderationsSingle-Family Residence InstitutionsLimitations of Smoke Alarms How to Obtain Warranty Service Year Limited Warranty

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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