First Alert Carbon Monoxide Alarm Manual: A Comprehensive Guide
This manual provides crucial operational details for your Carbon Monoxide (CO) Alarm, ensuring safety and understanding․ It’s vital to retain this document—or a copy—for end-users if installation is performed for others, offering comprehensive guidance on alarm functionality and maintenance procedures․
The manual covers sections like basic safety, alarm operation, installation guidelines, response protocols when the alarm sounds, and essential CO information․ Regular testing and maintenance are also highlighted for optimal performance and reliability․
Printed in Mexico (M08-0152-002 S 07/07), this guide is designed to empower users with the knowledge needed to protect themselves and their loved ones from the dangers of carbon monoxide․
Welcome to the First Alert Carbon Monoxide (CO) Alarm Manual․ This document serves as your primary resource for understanding and effectively utilizing your new CO alarm, a vital component in safeguarding your home and family against the silent, deadly threat of carbon monoxide poisoning․
This alarm is designed to detect the presence of carbon monoxide, an odorless, colorless gas produced by the incomplete combustion of fuels․ Early detection is critical, and this manual will guide you through the alarm’s features, proper installation, testing procedures, and appropriate responses should an alarm signal activate․
Carefully reading and understanding this manual is paramount․ It contains essential safety information, operational instructions, and troubleshooting tips to ensure the alarm functions correctly and provides reliable protection․ Retain this manual for future reference, and share a copy with anyone else who may be responsible for the alarm’s maintenance or operation․ Your safety is our top priority․
Remember, this alarm is not a substitute for proper maintenance of fuel-burning appliances․
Basic Safety Information
This Carbon Monoxide (CO) alarm is designed to protect individuals from the acute effects of carbon monoxide exposure․ However, it’s crucial to understand its limitations and adhere to essential safety guidelines for optimal protection․
This device does NOT protect against all potential sources of CO poisoning․ Regular inspection and maintenance of fuel-burning appliances – such as furnaces, water heaters, and stoves – are vital․ Never ignore symptoms of CO poisoning, even if the alarm hasn’t sounded․
Ensure everyone in the household understands the alarm’s signal and knows how to respond․ Develop and practice a CO safety plan, including evacuation procedures and contact information for emergency services․ Do not disable the alarm to silence nuisance alarms; investigate the cause instead․
This alarm is not intended for use in recreational vehicles or boats․ Proper placement and regular testing are essential for reliable operation․ Always follow the installation instructions carefully․
How Your CO Alarm Works
This First Alert CO alarm utilizes an electrochemical sensor to detect the presence of carbon monoxide․ The sensor reacts with CO molecules, generating an electrical current proportional to the CO concentration in the air․
When the CO level exceeds a predetermined threshold, the alarm’s circuitry triggers an audible warning․ This threshold is set to provide timely notification of potentially dangerous CO levels, allowing for prompt evacuation and ventilation․
The alarm continuously monitors the surrounding air for CO, even while in the “silence” mode․ The sensor has a limited lifespan and may require replacement after a certain period, typically several years․ The alarm features a test button to verify sensor functionality․
It’s important to note that the alarm detects CO gas, not the source of the CO․ Identifying and addressing the CO source is crucial after an alarm event․
Understanding Your CO Alarm
Your First Alert CO alarm is designed to provide early warning of potentially dangerous carbon monoxide levels․ It’s crucial to understand its features and limitations for effective protection․
The alarm features a test button for verifying operational status, and a silence button to temporarily quiet nuisance alarms․ The alarm’s LED indicator displays power status and alarm conditions, providing visual cues alongside the audible alert․
This is a plug-in model, requiring a standard 120V electrical outlet․ It’s important to ensure the outlet is not controlled by a switch, as this could disable the alarm․ The alarm is not a substitute for regular appliance maintenance or proper ventilation․
Familiarize yourself with the alarm’s sound pattern; a distinct alarm signal indicates a CO event․ Understanding these features will help you respond appropriately and ensure the safety of yourself and your family․

Installation
Proper installation is key for optimal performance․ This section details where to install your CO alarm for maximum effectiveness, and equally important, where not to install it, ensuring reliable protection․
Where to Install CO Alarms
Mount the CO alarm at eye level, or higher, on a wall or on the ceiling․ For wall mounting, place the alarm 5 to 10 feet from fuel-burning appliances, such as furnaces, fireplaces, water heaters, and stoves․
Ensure the alarm isn’t obstructed by furniture or other objects that could impede the flow of air to the sensor․ Install alarms in hallways outside of sleeping areas, as this provides early warning to occupants while they sleep․
For multi-level homes, install a CO alarm on every level, including the basement; This is crucial because CO can accumulate at any height․ Consider the location of potential CO sources when determining placement․
In sleeping areas, it’s recommended to have an alarm within 10 feet of the bed, so any detected CO will quickly alert those present․ Proper placement significantly enhances the alarm’s ability to provide timely warnings․
Where CO Alarms Should NOT Be Installed

Avoid installing CO alarms in garages, kitchens, or areas with excessive moisture, as these environments can cause false alarms due to fumes or humidity․ Do not place alarms directly above or near fuel-burning appliances, as this can damage the sensor․
Installation in dusty or dirty areas should also be avoided, as accumulated dust can obstruct the sensor and reduce its effectiveness․ Keep alarms away from air vents, windows, and doors, as drafts can dilute CO and delay detection․
Do not install alarms in locations where they could be easily tampered with or disabled․ Avoid areas with temperatures below 40°F (4°C) or above 100°F (38°C), as extreme temperatures can affect performance․
Furthermore, do not install the alarm in a confined space, such as a closet, as this can hinder the proper circulation of air and accurate CO detection․ Proper placement is vital for reliable operation․
How to Install Your CO Alarm
This 120V plug-in CO alarm is designed for easy installation․ Simply plug the alarm directly into a standard electrical outlet․ Ensure the outlet is not controlled by a switch, as this could interrupt power and compromise protection․

For optimal performance, position the alarm between 5 and 20 feet away from potential CO sources, such as furnaces or water heaters․ Avoid obstructing the alarm with furniture or curtains, ensuring free airflow around the unit․
After plugging in the alarm, allow a short period for it to initialize․ The alarm will perform a self-test, indicated by a series of beeps․ If the self-test fails, consult the troubleshooting section of this manual․
Regularly verify the alarm is securely plugged in and functioning correctly․ Proper installation is crucial for reliable CO detection and safeguarding your home and family․

If Your CO Alarm Sounds
If the alarm signal activates, immediately assume a dangerous CO level exists․ Evacuate all occupants and pets to fresh air, then call emergency services or the fire department from a safe location․
If the Alarm Signal Sounds
When your First Alert CO alarm sounds, treat it as a serious emergency․ Do not ignore the alarm, even if no one is experiencing symptoms of CO poisoning; the alarm is designed to detect dangerous levels before symptoms appear․
Your immediate action should be to evacuate everyone – including pets – from the building to a fresh air location․ Once outside, call 911 or your local emergency number, and do not re-enter the premises until it has been declared safe by qualified emergency personnel․
It is crucial to avoid attempting to identify the source of the CO yourself․ Leave that to the professionals who have the proper equipment and training․ Do not waste time opening windows or doors, as this may not quickly ventilate the building and could delay evacuation․ Remember, swift action is paramount when a CO alarm sounds․
Never dismiss the alarm as a false alarm without professional investigation․
Using the Silence Feature
Your First Alert CO alarm is equipped with a silence feature designed for temporary silencing of nuisance alarms․ This feature is intended for use only when the alarm has been triggered by a transient CO source, such as brief combustion spikes, and the CO levels are returning to safe limits․

To activate the silence feature, press the “Silence” button on the alarm․ This will temporarily silence the alarm for a specified period, typically several minutes․ However, the alarm will reactivate if dangerous CO levels are detected again during this time․
It is vital to understand that the silence feature does not address the underlying cause of the CO detection․ It merely provides temporary relief from the audible alarm․ Always investigate the source of the CO, even after using the silence feature, to ensure the safety of your home and family․

Do not rely on the silence feature as a substitute for proper CO source identification and resolution;

Testing and Maintenance
Regular testing and maintenance are crucial for ensuring your CO alarm functions correctly․ Weekly testing confirms the alarm’s sensor and circuitry are operational, providing continued protection and peace of mind․
Weekly Testing
To ensure reliable operation, test your First Alert CO alarm weekly․ Press the test button – a loud beep confirms the electronic circuitry and horn are functioning as expected․ If no sound occurs, replace the alarm immediately․
Consistent weekly testing doesn’t verify the accuracy of the CO sensor, but it does confirm the alarm’s ability to alert you to potential danger․ This simple step is a vital part of maintaining a safe environment․
Avoid using sprays, hairspray, or cleaning agents near the alarm during testing, as these can cause a temporary false alarm or damage the sensor․ Always test from a safe distance, and remember that testing only confirms the alarm’s basic functionality, not the presence or absence of CO․
Documenting your weekly tests can also be helpful, providing a record of consistent maintenance․
Regular Maintenance
To keep your First Alert CO alarm operating effectively, perform regular maintenance beyond weekly testing․ Gently vacuum the exterior of the alarm with a soft brush attachment to remove dust and debris, which can obstruct the sensor and affect performance․
Avoid using water, solvents, or cleaning agents, as these can damage the internal components․ Do not attempt to disassemble the alarm for cleaning or repair; this will void the warranty and potentially compromise its safety features․
Inspect the alarm for any visible signs of damage, such as cracks or discoloration․ If damage is detected, replace the alarm immediately․ Remember, a well-maintained alarm is a crucial component of your home safety system․
Keep the area around the alarm clear to ensure proper airflow and accurate CO detection․

What You Need To Know About CO
Understanding carbon monoxide (CO) is vital for safety․ This section details what CO is, its dangerous symptoms, common sources, alarm limitations, and troubleshooting tips for your First Alert alarm․
What is CO?
Carbon Monoxide (CO) is a colorless, odorless, and tasteless gas produced by the incomplete burning of carbon-containing fuels․ It’s often called the “silent killer” because it’s undetectable by human senses, making CO alarms essential for safety․
Common fuels that can produce CO include natural gas, propane, oil, wood, and gasoline․ Appliances like furnaces, stoves, fireplaces, and generators can generate CO if not properly maintained or ventilated․
CO is dangerous because it replaces oxygen in your bloodstream when inhaled․ This deprives your heart, brain, and other vital organs of oxygen, leading to serious health problems and even death․
Even low levels of CO exposure can cause flu-like symptoms, while higher concentrations can quickly become life-threatening․ A functioning CO alarm is your first line of defense against this invisible hazard, providing early warning and allowing for safe evacuation․
It’s crucial to understand the risks associated with CO and take proactive steps to protect yourself and your family․
Symptoms of CO Poisoning
Recognizing the symptoms of carbon monoxide (CO) poisoning is critical for prompt action and potentially saving lives․ Initial symptoms often mimic the flu, making diagnosis challenging without a CO alarm․
Low-level exposure can cause headaches, fatigue, dizziness, nausea, and shortness of breath․ These symptoms may be dismissed as common ailments, delaying crucial intervention․
As CO levels increase, more severe symptoms develop, including confusion, blurred vision, rapid heart rate, and loss of coordination․ Prolonged exposure can lead to unconsciousness and ultimately, death․
It’s important to note that symptoms can vary depending on the concentration of CO and the individual’s health․ Infants, pregnant women, and people with pre-existing heart or respiratory conditions are particularly vulnerable․
If you suspect CO poisoning, immediately evacuate the premises and call emergency services․ Do not return until the source of CO has been identified and corrected․
CO Sources
Carbon monoxide (CO) is a colorless, odorless gas produced by the incomplete combustion of fuels․ Identifying potential CO sources within your home is vital for preventative safety measures․
Common sources include fuel-burning appliances such as furnaces, stoves, water heaters, and fireplaces․ Malfunctioning or improperly vented appliances are primary culprits․
Portable generators, charcoal grills, and gasoline-powered tools also emit CO․ These should never be used indoors or in enclosed spaces like garages․
Vehicles running inside garages, even with the door open, can produce dangerous CO levels․ Blocked chimneys or flues can cause CO to back up into the home․
It’s crucial to have fuel-burning appliances inspected annually by a qualified professional․ Ensure proper ventilation and never use appliances for purposes they weren’t designed for, minimizing CO risks․
Alarm Limitations
This carbon monoxide alarm is designed to detect the presence of CO gas and provide an audible warning․ However, it’s essential to understand its limitations for comprehensive safety․
This device will not protect against all potential CO exposure situations․ Factors like CO source location, ventilation, and alarm placement can influence detection speed․

The alarm is not a substitute for proper appliance maintenance or regular inspections․ It’s crucial to address and rectify any potential CO sources promptly․
CO can overcome a person before the alarm sounds, especially if sleeping or intoxicated․ Individuals at higher risk should take extra precautions․
The alarm may not detect low concentrations of CO over extended periods․ Battery-powered alarms are dependent on battery life and may not function during a power outage without battery backup․
Always prioritize safety and address any suspected CO issues immediately, even if the alarm hasn’t sounded․
Troubleshooting
If your First Alert CO alarm isn’t functioning as expected, several troubleshooting steps can be taken․ First, ensure the alarm is properly plugged in and receiving power; a loose connection can cause issues․
If the alarm chirps intermittently, it likely indicates a low battery․ Replace the battery with a fresh one, following the polarity markings․
False alarms can occur due to nearby sources of humidity or cleaning chemicals․ Ensure adequate ventilation and avoid direct exposure to these substances․
If the alarm sounds despite no apparent CO source, ventilate the area and contact emergency services․ It’s better to be safe than sorry․
Regularly test the alarm using the test button to verify functionality․ If the alarm fails to respond during testing, it may require replacement․
If problems persist, consult the full manual or contact First Alert customer support for assistance․