1. Introducció
Thank you for choosing the First Alert BRK CO511 Wireless Interconnected Carbon Monoxide Alarm. This device is designed to detect elevated carbon monoxide (CO) levels and provide an audible and voice warning. Its wireless interconnection capability allows it to communicate with other compatible First Alert wireless alarms, creating a unified safety network throughout your home. The voice alarm feature includes programmable location announcements for clear identification of the hazard area.
2. Informació important de seguretat
WARNING: Carbon Monoxide (CO) is a colorless, odorless, and tasteless gas that can be fatal. This detector is designed to alert you to the presence of carbon monoxide. It is not a substitute for proper maintenance of fuel-burning appliances, including ventilation systems, nor is it a substitute for a smoke alarm.
Please read this entire user manual carefully before installation and operation. Keep this manual in a safe place for future reference. If you are installing this alarm for use by others, you must leave this manual or a copy of it with the end user.
3. Característiques del producte
- Funciona amb piles: Provides easy installation without the need for electrical wiring.
- Interconnexió sense fils: Connects with compatible First Alert wireless alarms to create a comprehensive safety network.
- Voice Alarm with Programmable Location: Clearly announces the type of danger and its location.
- Advanced Electrochemical CO Sensor: Detects carbon monoxide from various sources.
- Funcionament d'un sol botó: Used for testing the alarm and silencing false alarms.
- Dues característiques de tancament: Provides visual indication of a previous alarm event.
- Dues característiques de silenci: Permet silenciar temporalment les alarmes incòmodes.
4. Contingut del paquet
En obrir el paquet, comproveu que hi hagi tots els components:
- First Alert BRK CO511 Carbon Monoxide Detector Unit
- Suport de muntatge
- Maquinari de muntatge (cargols i ancoratges)
- 2 piles AA
- Manual d'usuari
- Guia d'instal·lació ràpida

Image: Contents of the First Alert CO511 package, including the detector, mounting hardware, and batteries.
5. Instal·lació
Proper placement and installation are crucial for the effective operation of your carbon monoxide detector.
5.1 Col·locació recomanada
Install carbon monoxide alarms on every level of your home and in every bedroom. Consider placing additional alarms in living areas, hallways, and basements, especially near fuel-burning appliances.

Image: Recommended placement of CO alarms throughout a home.
5.2 Passos de muntatge
- Instal·leu les bateries: Open the battery compartment and insert the two AA batteries, ensuring correct polarity.
- Seleccioneu la ubicació: Choose a suitable location on a wall or ceiling, away from direct sunlight, vents, or areas with high humidity.
- Suport de muntatge: Use the provided screws and anchors to securely attach the mounting bracket to the chosen surface.
- Connecteu el detector: Alineeu el detector amb el suport de muntatge i gireu-lo en sentit horari fins que quedi encaixat.
- Unitat de prova: Press and hold the Test/Silence button to ensure the alarm sounds.


Imatges: Anvers i revers views of the CO511 detector, illustrating its design for mounting.
6. Interconnexió sense fil
The CO511 detector features wireless interconnection technology, allowing it to communicate with other compatible First Alert wireless alarms. When one interconnected alarm detects CO, all other interconnected alarms will sound, providing early warning throughout your home.
6.1 Linking Alarms
Refer to the detailed instructions in the full user manual for specific steps on wirelessly linking multiple CO511 units or other compatible First Alert wireless alarms. This typically involves a simple pairing process using the test button on each unit.
7. Instruccions de funcionament
7.1 Prova de l'alarma
Manteniu premut el botó Prova/Silenci button on the front of the alarm for a few seconds. The alarm should sound a loud siren and announce "Carbon Monoxide! Evacuate!" or similar. Test your alarm weekly to ensure proper function.
7.2 Silenciar l'alarma
If the alarm sounds due to a known, non-emergency condition (e.g., temporary CO from a gas stove), you can press the Prova/Silenci button to temporarily silence it. The alarm will reset after a few minutes if the CO levels return to normal. If CO levels remain high, the alarm will reactivate.
7.3 Voice and Location Feature
When CO is detected, the alarm will not only sound a siren but also provide a clear voice message, such as "WARNING! Carbon Monoxide! Evacuate!" If programmed, it will also announce the location of the alarm (e.g., "Basement").
7.4 Què fer quan soni l'alarma
- Immediately move to fresh air outdoors or open doors/windows.
- Call your emergency services (e.g., 911) or the fire department.
- Do not re-enter the premises until it has been cleared by emergency responders and the CO source has been identified and corrected.
8. Manteniment
Un manteniment regular garanteix la fiabilitat contínua del detector de monòxid de carboni.
8.1 Proves regulars
Test your CO alarm weekly by pressing the Prova/Silenci button. This confirms the unit's electronics and battery are functioning.

Image: A person testing a CO alarm.
8.2 Substitució de la bateria
The CO511 operates on two AA batteries. When the batteries are low, the unit will chirp periodically and/or indicate a low battery warning. Replace batteries immediately with fresh AA alkaline batteries. The average battery life is approximately 8760 hours (1 year).
8.3 Neteja de la unitat
Clean your CO alarm regularly to prevent dust and debris buildup, which can affect its performance. Use a soft, damp cloth to wipe the exterior. Do not use cleaning solvents or spray directly onto the unit.
8.4 Alarm Replacement
Carbon monoxide alarms have a limited lifespan. Replace your CO511 alarm at least every 10 years from the date of manufacture. Refer to the date printed on the back of the unit.

Image: A person replacing a CO alarm.
9. Solució De Problemes
If your CO alarm is not functioning as expected, review the following common issues. For detailed troubleshooting, consult the full user manual.
| Problema | Causa possible | Solució |
|---|---|---|
| L'alarma sona periòdicament | Bateria baixa | Canvieu les piles per piles alcalines AA noves. |
| L'alarma sona sense una font de CO visible | Nuisance alarm, high humidity, or dust buildup | Press silence button. Clean the unit. Relocate if nuisance alarms persist. |
| L'alarma no sona durant la prova | Dead batteries, unit malfunction | Replace batteries. If still not working, replace the unit. |
| Wireless interconnection not working | Alarms not properly linked, interference | Re-link alarms according to manual. Check for sources of interference. |
10. Especificacions
| Característica | Detall |
|---|---|
| Marca | Primera alerta |
| Número de model | CO511B |
| Font d'alimentació | Alimentat per piles (2 piles AA incloses) |
| Tipus de sensor | Electroquímica |
| Tipus d’alarma | Audible, Voice with Location |
| Color | Blanc |
| Dimensions del producte | 2.38 "P x 5.13" W x 5.13" H |
| Pes de l'article | 10.4 unces |
| Durada mitjana de la bateria | 8760 Hours (approximately 1 year) |
| UPC | 029054002914 |
11. Garantia i Suport
11.1 Informació de la garantia
This First Alert BRK CO511 Carbon Monoxide Alarm comes with a manufacturer's warranty. Please refer to the warranty description provided in the original packaging or contact First Alert customer support for specific details regarding coverage and duration.
11.2 Atenció al client
For technical assistance, troubleshooting, or warranty claims, please contact First Alert customer support. Contact information can typically be found on the First Alert weblloc web o al manual d'usuari complet.





