first alert sc9120b user manual

This PDF user manual is for the First Alert SC9120B smoke and carbon monoxide alarm. First Alert SC9120B AC Powered Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup, Silence Feature and Latching Alarm. SKU⁚ SC9120B UPC⁚ 029054513069. This users manual contains important information about your Alarms 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.

Overview

The First Alert SC9120B is a combination smoke and carbon monoxide detector that is designed to keep your home safe from potential fires and harmful gas leaks. This unit is designed to be compatible with⁚ First Alert Smoke Alarm Models SA4120, SA4121B, SA100B and BRK. Electronics Smoke Alarm Models 9120, 9120B, It incorporates advanced sensing technology to quickly detect the presence of smoke, allowing occupants to be promptly alerted to potential fire hazards. The First Alert SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm is a hardwire alarm with battery backup. The hardwired detector includes a 9-volt battery backup for continued function in the event of a power outage. This alarm features a silence feature that allows you to temporarily mute the alarm if it is triggered by a false alarm. The latching alarm feature means that the alarm will remain active even if the power is interrupted. This is an important safety feature, as it ensures that you will be alerted to a fire or carbon monoxide leak even if the power is out.

Product Information

The First Alert SC9120B is a hardwired combination smoke and carbon monoxide alarm with battery backup. This alarm is designed to provide reliable and effective fire and carbon monoxide safety in residential settings. The SC9120B features a variety of features that make it a valuable addition to any home, including⁚ A large opening in the mounting bracket for easy access to wiring. A battery pull tab keeps the battery fresh. The SC9120B is also easy to install and maintain. You can find the First Alert SC9120B at most home improvement stores and online retailers. When purchasing, be sure to check the product description and specifications to ensure that you are purchasing the correct model. The First Alert SC9120B is also compatible with a variety of other First Alert products, so you can easily integrate it into your existing home security system.

Key Features

The First Alert SC9120B offers a range of features designed to enhance safety and convenience; It incorporates a dual-sensor technology, combining both ionization and photoelectric smoke detection, providing comprehensive fire protection. This means it can detect different types of smoke, including smoldering fires and fast-burning flames. Additionally, the SC9120B includes a carbon monoxide detector, safeguarding against the silent and deadly threat of carbon monoxide poisoning. The SC9120B is equipped with a battery backup system, ensuring continued operation during power outages. This feature provides peace of mind, knowing your home is protected even if the main power supply fails. Moreover, it features a silence button for temporary silencing of the alarm, allowing you to address a false alarm without needing to remove the battery. The latching alarm functionality allows the alarm to continue sounding even after the source of the alarm has been addressed, reminding occupants to investigate the cause and ensure safety.

Installation

Installing your First Alert SC9120B is a straightforward process, ensuring proper setup is crucial for optimal performance. Begin by selecting an appropriate location for the alarm. Ensure the location meets the manufacturer’s recommendations, typically avoiding areas with high humidity or excessive temperatures. It is essential to install the alarm in accordance with local building codes and regulations. The SC9120B comes equipped with a mounting bracket, allowing for easy installation on walls or ceilings. The bracket provides a secure hold, ensuring the alarm remains firmly in place. The alarm can be hardwired to your home’s electrical system, providing a permanent and reliable power source. The wiring process should be handled by a qualified electrician to guarantee safe and correct connections. A battery backup feature is included for added safety, ensuring the alarm continues to function even during power outages. Installing the battery involves placing it in the designated compartment within the alarm housing. It is important to use the correct type and size of battery as specified in the user manual. After installation, ensure you test the alarm to confirm it is functioning properly. Refer to the user manual for detailed instructions on testing procedures.

Wiring

The First Alert SC9120B is designed for hardwired installation, providing a permanent and reliable power source. Before attempting any wiring, it is crucial to disconnect power to the circuit where the alarm will be installed. This ensures safety during the installation process. Locate the appropriate wiring terminals on the alarm, typically labeled according to their function, such as “line” and “neutral.” Connect the wires from your home’s electrical system to the corresponding terminals on the alarm. Ensure the connections are secure and free from any loose wires. Once the wiring is complete, carefully re-connect the power to the circuit. After re-connecting power, test the alarm to confirm it is receiving power and functioning correctly. If you encounter any issues or are unsure about any aspect of the wiring process, it is strongly recommended to consult a qualified electrician. They possess the necessary expertise to ensure safe and proper installation, maximizing the effectiveness of your alarm system.

Battery Backup

The First Alert SC9120B features a built-in battery backup system, providing an essential safety net in the event of a power outage. This backup system ensures that the alarm will continue to function even when the primary power source is interrupted. The alarm is equipped with a 9-volt battery compartment. Locate the compartment, usually on the back or side of the alarm. Insert a fresh 9-volt battery into the compartment, ensuring the positive (+) and negative (-) terminals align correctly. Regularly test the battery backup by simulating a power outage. This involves disconnecting the primary power source, allowing the alarm to rely solely on the backup battery. Listen for the alarm’s sound to confirm it is functioning properly on battery power. Replace the battery as needed, following the manufacturer’s recommendations for battery life expectancy. A properly functioning backup battery is crucial for ensuring continued protection, especially during emergencies when power outages are most likely to occur.

Mounting

Proper mounting of the First Alert SC9120B is crucial for ensuring optimal performance and reliable detection. Choose a suitable location for the alarm, ideally on the ceiling or high on a wall, at least 12 inches away from any obstructions, such as furniture or appliances. Avoid areas with high humidity or extreme temperatures, as these can affect the alarm’s functionality. The mounting bracket included with the alarm will have a large opening for easy access to the wiring. Carefully align the bracket to the desired position, ensuring it is level and secure. Use the appropriate screws or fasteners to attach the bracket to the wall or ceiling. Once the bracket is firmly installed, connect the alarm to the wiring, ensuring proper connections are made according to the installation instructions. After the wiring is complete, gently snap the alarm onto the mounting bracket, ensuring it is securely attached. Test the alarm after mounting to verify its functionality and ensure it is properly installed for optimal protection.

Operation

The First Alert SC9120B operates on a principle of dual detection, utilizing both smoke and carbon monoxide sensors to provide comprehensive protection for your home. The smoke sensor employs ionization technology, which is highly responsive to fast-burning fires that produce a lot of smoke. The carbon monoxide sensor, on the other hand, utilizes an electrochemical sensing technology to detect the presence of this colorless, odorless, and potentially deadly gas. When either sensor detects a hazardous condition, the alarm will emit a loud, piercing sound to alert occupants to evacuate immediately. The alarm also features a silence button, allowing you to temporarily silence the alarm if it is triggered by a false alarm. However, it is important to investigate the cause of the alarm and address it promptly. The First Alert SC9120B also incorporates a latching alarm feature, which ensures that the alarm will continue to sound even after the power is interrupted or the battery is removed. This feature is designed to provide continuous warning in the event of a power outage or battery failure.

Testing

Regular testing of your First Alert SC9120B smoke and carbon monoxide alarm is crucial to ensure its proper functioning and your safety. To test the alarm, simply press and hold the “Test” button located on the front of the unit. The alarm should emit a series of loud beeps, indicating that it is operational. If the alarm does not sound during testing, it is imperative to take immediate action. First, check the battery compartment to ensure that the battery is properly installed and has sufficient charge. If the battery is new and the alarm still does not sound, it is highly recommended to replace the alarm entirely. It is essential to test your First Alert SC9120B smoke and carbon monoxide alarm at least once a month to verify its functionality and ensure that it will alert you in the event of a fire or carbon monoxide leak. Remember, a properly functioning smoke and carbon monoxide alarm can save lives.

Alarm Sounds

The First Alert SC9120B smoke and carbon monoxide alarm is designed to alert you to potential hazards with distinct and easily recognizable sounds. When the smoke detector senses smoke, it will emit a loud, continuous, pulsating sound, similar to a traditional smoke alarm. This sound is intended to quickly and effectively alert you to the presence of smoke and the potential for a fire. If the carbon monoxide detector senses elevated levels of carbon monoxide, it will emit a series of four beeps followed by a 5-second pause. This pattern will repeat until the carbon monoxide levels return to a safe range. The distinct sound patterns for smoke and carbon monoxide detection allow you to quickly identify the nature of the hazard and take appropriate action. Remember, the alarm sounds are critical for your safety, so it is important to understand what they mean and to respond accordingly.

Silence Feature

The First Alert SC9120B smoke and carbon monoxide alarm incorporates a convenient silence feature that allows you to temporarily mute the alarm if it is triggered by a nuisance. This feature is designed for situations where the alarm is activated by something other than a genuine fire or carbon monoxide leak, such as cooking smoke or steam. To silence the alarm, locate the silence button on the alarm’s face. Press and hold the silence button for a few seconds until the alarm stops sounding. The alarm will remain silenced for approximately 10 minutes. If the alarm is triggered again within that timeframe, it will sound again, indicating that the hazard may still be present. The silence feature is a useful tool for managing nuisance alarms, but it is important to remember that it should only be used in situations where the alarm is not triggered by a genuine threat. Always prioritize safety and investigate the cause of the alarm before silencing it.

Latching Alarm

The First Alert SC9120B smoke and carbon monoxide alarm features a latching alarm function, which ensures that the alarm continues to sound even after the source of the hazard has been removed. This is particularly important in situations where the alarm is triggered by a fire or carbon monoxide leak, as it provides a persistent warning signal until the hazard is completely eliminated. When the alarm is activated, it will continue to sound until the reset button is pressed. The reset button is typically located on the face of the alarm, and pressing it will silence the alarm and reset the device. The latching alarm feature is designed to enhance safety by providing a persistent warning signal until the hazard is addressed, ensuring that occupants are alerted to the danger and have ample time to evacuate or take other appropriate action. It is crucial to prioritize safety and address the source of the hazard before resetting the alarm.

Maintenance

Regular maintenance is essential to ensure the proper functioning of your First Alert SC9120B smoke and carbon monoxide alarm. This includes tasks such as battery replacement, cleaning, and testing. The First Alert SC9120B alarm is equipped with a 10-year sealed battery, which should provide reliable power for the entire lifespan of the device. However, it is recommended to test the alarm regularly to ensure it is functioning correctly. To test the alarm, simply press the test button located on the front of the unit. For optimal performance, you should clean the alarm periodically to remove dust and debris. Use a soft cloth or brush to gently clean the sensor and surrounding areas. Avoid using harsh chemicals or abrasive cleaners, as these can damage the alarm.

Battery Replacement

The First Alert SC9120B alarm features a sealed 10-year battery, eliminating the need for frequent battery replacements. This long-lasting battery is designed to provide reliable power for the entire lifespan of the device, ensuring continuous protection without the hassle of battery changes. However, even with a sealed battery, it’s crucial to regularly test the alarm to confirm its functionality. Should the battery fail or become depleted before the expected lifespan, the alarm will emit a low-battery chirp sound. If this occurs, it’s essential to replace the entire alarm unit as the sealed battery cannot be individually replaced. Remember, a functioning smoke and carbon monoxide alarm is crucial for your safety.

Cleaning

Regular cleaning is essential to ensure the optimal performance of your First Alert SC9120B alarm. Dust, dirt, and other debris can accumulate on the alarm’s sensors, potentially affecting its ability to detect smoke or carbon monoxide. To clean the alarm, first, disconnect the power supply by removing the fuse or unplugging the unit from the outlet. Then, use a soft, dry cloth or a vacuum cleaner with a brush attachment to gently remove any dust or debris from the alarm’s exterior. Avoid using any harsh chemicals, solvents, or abrasive cleaners, as these can damage the alarm’s sensitive components. Once the alarm is clean, reconnect the power supply and test it to ensure it is functioning properly. Regular cleaning will help to maintain the sensitivity of your alarm and ensure it provides reliable protection for your home and family.

Troubleshooting

If your First Alert SC9120B alarm is exhibiting unusual behavior, there are a few troubleshooting steps you can take to resolve the issue. If you hear a continuous beeping or chirping sound, this usually indicates a low battery or a malfunctioning sensor. Replace the batteries with fresh ones of the correct type. If the chirping persists, it could be a sign of a faulty sensor. Replace the alarm with a new one, as it is recommended to replace smoke and carbon monoxide alarms every 10 years. If your alarm is not sounding when it should, first ensure that the power supply is connected and functioning. Check the fuse or outlet for any issues. If the power supply is fine, ensure the alarm is properly installed and wired. If the alarm is still not sounding, it could be a sign of a malfunctioning sensor or internal component. In this case, it is best to replace the alarm entirely to ensure your home’s safety.

Beeping or Chirping

A continuous beeping or chirping sound from your First Alert SC9120B alarm typically indicates a low battery or a malfunctioning sensor. To resolve this, first try replacing the batteries with fresh ones of the correct type; If the chirping persists after battery replacement, it could be a sign of a faulty sensor. In this case, it is recommended to replace the alarm with a new one, as it is crucial to have a functioning alarm for your safety. Smoke and carbon monoxide alarms are designed to have a lifespan of approximately 10 years. If your alarm is older than 10 years, it is time for a replacement, regardless of whether it is currently beeping or not. Regularly checking and replacing batteries and alarms can ensure your home is protected from potential fire and carbon monoxide hazards.

Alarm Not Sounding

If your First Alert SC9120B alarm doesn’t sound when tested, it’s essential to troubleshoot the issue promptly. First, ensure the alarm is properly wired and connected to the power source. Check the circuit breaker to make sure it’s not tripped. If the wiring is secure and power is flowing, inspect the battery compartment. A dead or faulty battery can prevent the alarm from sounding. Replace the battery with a fresh one of the correct type and test again. If the alarm still doesn’t sound, examine the sensor chamber for any dust or debris that might be obstructing it. Clean the sensor chamber gently with a soft brush or vacuum cleaner. If the problem persists after these steps, the alarm itself may be malfunctioning. In this case, it’s crucial to replace the alarm with a new one to ensure your safety.

Safety Information

Your First Alert SC9120B smoke and carbon monoxide alarm is designed to provide early warnings in case of a fire or carbon monoxide buildup. It’s crucial to understand the limitations of these alarms and follow safety precautions to ensure maximum protection. Smoke alarms are most effective when installed correctly and maintained regularly. They are not a substitute for a fire escape plan and should be used in conjunction with other safety measures like fire extinguishers and smoke detectors. Never disable or tamper with your alarm, as this could compromise its ability to alert you in an emergency. Carbon monoxide is a colorless and odorless gas that can be deadly. If your alarm sounds, evacuate the premises immediately and seek fresh air. Call emergency services and do not re-enter the building until it is deemed safe by authorities.

Fire Safety

Fire safety is paramount, and your First Alert SC9120B smoke alarm plays a vital role in protecting you and your family. To ensure maximum fire safety, install the alarm according to the instructions provided in this manual. Locate the alarm in strategic locations within your home, typically on each level and in every bedroom. Regularly test the alarm to confirm its functionality and replace the batteries as needed. Familiarize yourself with the alarm’s sounds and response patterns. Develop a fire escape plan and practice it with your family, including designated meeting points outside the home. In the event of a fire, evacuate the building immediately, close doors behind you, and call emergency services. Stay low to the ground to avoid inhaling smoke and exit the building through the safest route. Never attempt to re-enter a burning building unless instructed by firefighters. Your First Alert SC9120B smoke alarm is a vital safety device, but it is just one component of a comprehensive fire safety plan. By taking these precautions, you can significantly reduce the risk of fire-related injuries and fatalities.

Carbon Monoxide Safety

Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that can be deadly. Your First Alert SC9120B alarm is equipped to detect CO levels and alert you to potential hazards. It’s crucial to understand the risks associated with CO poisoning. Common sources of CO include malfunctioning furnaces, gas stoves, water heaters, fireplaces, and generators. Symptoms of CO poisoning include headache, dizziness, nausea, fatigue, and shortness of breath. If you suspect CO poisoning, evacuate the building immediately and call emergency services. To minimize the risk of CO poisoning, ensure proper ventilation when using gas appliances, have your heating system and appliances inspected regularly, and install CO alarms on every level of your home, especially near bedrooms. Your First Alert SC9120B alarm provides an early warning system to protect you from the dangers of CO, but it’s essential to be aware of the risks and take preventative measures to ensure your safety.

Technical Specifications

The First Alert SC9120B is a comprehensive smoke and carbon monoxide alarm designed for reliable home safety. It operates with a 120V AC power source and draws 0.09 amps, ensuring continuous operation. The alarm is equipped with a 9-volt battery backup, providing protection even during power outages. Its dimensions are not explicitly stated in the available information, but it’s likely compact and easy to install. The alarm features a silence button to temporarily mute the alarm, allowing for a brief pause without disabling its functionality. The alarm is also equipped with a latching alarm feature, ensuring it continues to sound even after the hazard has been removed. The First Alert SC9120B combines advanced technology and user-friendly features to offer a robust safety system for your home.

Input

The First Alert SC9120B is designed to be powered by a standard 120V AC power source, commonly found in most homes. This ensures continuous operation as long as there is electricity available. The alarm’s power consumption is relatively low, drawing only 0.09 amps, making it efficient and cost-effective. In addition to the primary AC power source, the SC9120B includes a 9-volt battery backup system. This backup system kicks in automatically if the AC power fails, ensuring continued protection even during power outages. The combination of AC power and battery backup ensures that the alarm remains operational even in the event of a power disruption, providing essential safety even in emergency situations.

Dimensions

The First Alert SC9120B is designed to be compact and unobtrusive, fitting seamlessly into various home environments. The alarm has a diameter of 4.5 inches (11.43 cm), making it a relatively small and easily mountable device. The height of the alarm is 1.5 inches (3.81 cm), further contributing to its compact form factor. This allows for installation in areas where space is limited, such as on walls or ceilings with minimal clearance. The SC9120B’s compact size and convenient mounting options make it ideal for use in various locations throughout the home, ensuring comprehensive protection from potential fire and carbon monoxide hazards.

Weight

The First Alert SC9120B is designed to be lightweight, making installation and mounting a hassle-free process. The alarm weighs approximately 0.5 pounds (0.23 kg), which is relatively light for a combination smoke and carbon monoxide detector. This lightweight design allows for easy handling during installation, particularly when mounting it on ceilings or in hard-to-reach areas. The manageable weight ensures that the alarm can be securely mounted without putting undue stress on the mounting surface. The lightweight construction also contributes to the overall efficiency of the alarm, minimizing the strain on wiring and power sources, ensuring reliable and consistent operation.

Warranty Information

First Alert offers a limited warranty for its SC9120B smoke and carbon monoxide alarm. The warranty typically covers defects in materials and workmanship for a specific period, usually one to two years from the date of purchase. The warranty may not cover damage resulting from misuse, accidents, or improper installation. To claim warranty service, you may need to provide proof of purchase and follow the instructions outlined in the warranty documentation. It’s important to note that the warranty may vary depending on the country of purchase and local regulations. For detailed information about the specific warranty terms and conditions applicable to your region, refer to the First Alert website or contact their customer service department.

Frequently Asked Questions

Here are some frequently asked questions about the First Alert SC9120B smoke and carbon monoxide alarm⁚

• How long do First Alert SC9120B alarms last? The First Alert SC9120B has a recommended lifespan of 10 years. After this period, the alarm’s sensitivity and functionality may decline, and it’s crucial to replace it for continued safety.
• How to test a First Alert SC9120B alarm? To test your SC9120B alarm, press and hold the test button until the alarm sounds. You should hear a series of beeps, indicating that the alarm is functioning correctly. If the alarm does not sound, replace the battery or consider replacing the unit itself if it’s older than 10 years.
• How to stop a First Alert SC9120B alarm from beeping? If your SC9120B alarm is beeping, it usually indicates a low battery. To stop the beeping, replace the battery with a fresh one. If the beeping continues after replacing the battery, it could be a malfunctioning alarm, and you should consider contacting First Alert customer support or replacing the unit.

How long do First Alert SC9120B alarms last?

The First Alert SC9120B has a recommended lifespan of 10 years. This means that after 10 years, the alarm’s internal components may start to degrade, potentially affecting its sensitivity and ability to detect smoke or carbon monoxide. It’s crucial to replace the alarm after this period to ensure continued safety. The National Fire Protection Association (NFPA) recommends replacing smoke alarms every 10 years, regardless of whether they are hardwired or battery-powered. While the SC9120B has a battery backup, the internal components, including the sensor, are subject to wear and tear over time. Therefore, replacing the alarm after 10 years is essential to maintain its effectiveness and ensure your family’s safety.

How to test a First Alert SC9120B alarm?

Testing your First Alert SC9120B alarm regularly is crucial to ensure it’s functioning correctly and will alert you in case of a fire or carbon monoxide leak. Here’s how to test it⁚ Locate the “Test” button on the alarm. It’s usually a small button on the front or side of the unit. Press and hold the “Test” button for a few seconds. The alarm should sound a series of beeps or chirps, indicating it’s working. If the alarm doesn’t sound, double-check that the battery is properly installed and has sufficient charge. If the battery is new and the alarm still doesn’t respond, it’s time to replace the unit. Remember to test your alarm monthly to ensure it’s always ready to protect your home and loved ones.