1. Introducció
This manual provides important information regarding the installation, operation, and maintenance of your BRK SMCO100V-AC Hardwire Combination Smoke and Carbon Monoxide Alarm. This device is designed to detect both smoke and carbon monoxide, providing early warning through audible alarms and voice alerts. It features hardwire connectivity with battery backup and can interconnect with compatible BRK/First Alert alarms.
Please read this manual thoroughly before installation and keep it for future reference. Proper installation and regular maintenance are crucial for the effective operation of this alarm.

Imatge: Frontal view of the BRK SMCO100V-AC Combination Smoke and Carbon Monoxide Alarm, highlighting its features and model number.
2. Informació de seguretat
DANGER: This alarm will not work without power. Ensure continuous power supply (hardwire and battery backup) for proper operation.
WARNING: This unit is designed for residential use only. It is not intended for marine or recreational vehicle use.
CAUTION: Do not paint over the alarm. Paint can clog the sensing chambers and prevent the alarm from operating correctly.
Regular testing of your alarm is essential. Test the alarm weekly to ensure it is functioning properly. Never ignore an alarm. Investigate the cause and take appropriate action immediately.

Image: Graphic illustrating Precision Detection Advanced Sensing Technology, designed for early warning and reduced nuisance alarms.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet:
- BRK SMCO100V-AC Combination Smoke & Carbon Monoxide Alarm Unit
- Suport de muntatge
- Arnès de cablejat
- 2 AA Batteries (pre-installed or separate)
- Screws and Anchors for mounting
- Manual d'usuari (aquest document)
4. Configuració i instal·lació
4.1 Selecció d'ubicació
Proper placement of your alarm is critical for effective detection. Install at least one alarm on every level of your home, including basements and finished attics. For optimal protection, install an alarm in every sleeping area and outside each separate sleeping area.
- Alarmes de fum: Avoid placing within 20 feet of a furnace or cooking appliance, or in areas with high humidity like bathrooms.
- Carbon Monoxide Alarms: Place near sleeping areas and on every level of the home. Avoid placing directly above or next to fuel-burning appliances.
- Alarmes interconnectades: For homes with multiple alarms, interconnecting them ensures that when one alarm sounds, all compatible alarms sound, providing earlier warning.

Image: Recommended placement diagram for smoke alarms, carbon monoxide alarms, and fire extinguishers throughout a typical home layout.
4.2 Muntatge de l'alarma
- Apagueu l'alimentació: Before beginning installation, turn off the AC power to the circuit where you will be installing the alarm.
- Instal·leu el suport de muntatge: Secure the mounting bracket to the ceiling or wall using the provided screws and anchors. Ensure the bracket is firmly attached.
- Connecteu l'arnès de cablejat: Connect the alarm's wiring harness to your household wiring. Match the black wire to black, white to white, and the red/orange wire (if present) to the interconnect wire from other compatible alarms.
- Instal·leu les bateries: Open the battery compartment and insert the two AA batteries, matching the polarity (+ and -) as indicated. Close the compartment securely.
- Attach Alarm to Bracket: Alineeu l'alarma amb el suport de muntatge i gireu-la en sentit horari fins que quedi bloquejada.
- Restaura l'alimentació: Turn the AC power back on at the circuit breaker. The alarm should chirp once and the green LED should illuminate, indicating it is receiving AC power.

Image: Components included for installation: the alarm unit, mounting bracket, wiring harness, screws, and anchors.

Image: The BRK SMCO100V-AC alarm unit installed on a ceiling, demonstrating its wired connection.
5. Instruccions de funcionament
5.1 Funcionament normal
Under normal operating conditions, the green LED indicator will be steadily lit, indicating that the alarm is receiving AC power. The alarm performs self-diagnostics periodically.
5.2 Prova de l'alarma
Test your alarm weekly. Press and hold the Test/Silence button on the alarm cover for a few seconds. The alarm will sound a series of beeps and voice announcements. If the alarm does not sound, refer to the Troubleshooting section.
5.3 Funció de silenci
To silence a nuisance alarm (e.g., from cooking smoke), press the Test/Silence button. The alarm will temporarily silence for up to 8 hours. If the smoke or CO concentration is still high after the silence period, the alarm will reactivate.
5.4 Alarm Signals and Voice Alerts
The alarm provides distinct audible patterns and voice announcements to differentiate between smoke and carbon monoxide events:
- Alarma de fum: Three long beeps, pause, three long beeps. Voice: "Fire! Fire!" followed by the location (if programmed).
- Alarma de monòxid de carboni: Four quick beeps, pause, four quick beeps. Voice: "Warning! Carbon Monoxide!" followed by the location (if programmed).
- Bateria baixa: A single chirp every minute. Voice: "Low Battery."
- Mal funcionament: A single chirp every 30 seconds. Voice: "Malfunction."

Imatge: Lateral view of the alarm, highlighting the Voice & Location Alerts feature, which provides clear verbal warnings.
6. Manteniment
6.1 Neteja de l'alarma
Clean your alarm at least once a month. Use a soft brush or vacuum cleaner nozzle to remove dust and debris from the alarm's vents and openings. Do not use cleaning solvents or spray directly onto the alarm.
6.2 Substitució de la bateria
The alarm uses two AA batteries for backup power. When the batteries are low, the alarm will chirp once every minute and announce "Low Battery." Replace the batteries immediately. To replace:
- Turn off AC power to the alarm circuit.
- Gireu l'alarma en sentit antihorari per treure-la del suport de muntatge.
- Obriu el compartiment de la bateria.
- Traieu les piles velles i elimineu-les correctament.
- Insert two new AA batteries, ensuring correct polarity.
- Tanqueu el compartiment de la bateria i torneu a fixar l'alarma al suport de muntatge.
- Restableix l'alimentació de CA i prova l'alarma.
6.3 Fi de la vida
This alarm has a 10-year operational life. After 10 years from the date of manufacture, the alarm will indicate its end-of-life by chirping periodically and announcing "Replace Alarm." Replace the unit immediately with a new BRK SMCO100V-AC alarm.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Alarm chirps once every minute, voice says "Low Battery." | Les bateries estan baixes. | Replace both AA batteries immediately (refer to Section 6.2). |
| Alarm chirps once every 30 seconds, voice says "Malfunction." | Unit malfunction or end-of-life. | Clean the alarm (Section 6.1). If chirping persists, replace the unit. |
| Alarm sounds randomly without apparent smoke or CO. | Dust or debris in sensing chamber, high humidity, or nuisance alarm. | Clean the alarm thoroughly (Section 6.1). Relocate if consistently triggered by steam or cooking fumes. Press Test/Silence button to temporarily silence. |
| L'alarma no sona durant la prova. | No power, dead batteries, or unit malfunction. | Check AC power connection. Replace batteries. If still no sound, replace the unit. |
| Voice alerts are unclear or out of sync (with interconnected alarms). | Interference or multiple alarms speaking simultaneously. | Ensure proper wiring for interconnectivity. While voice alerts may overlap, the primary alarm will indicate the source. |
8. Especificacions
- Model: SMCO100V-AC
- Marca: BRK
- Tipus d'alarma: Combinació de fum i monòxid de carboni
- Font d'alimentació: 120V AC Hardwire with 2 AA Battery Backup
- Sensor de fum: Fotoelèctric
- Sensor de CO: Electroquímica
- Interconnexió: Yes, with compatible BRK/First Alert alarms
- Alertes de veu: Sí
- Dimensions: Aproximadament 2.47 x 5.76 x 5.76 polzades
- Pes: Aproximadament 12.2 unces
- Vida operativa: 10 Anys
9. Garantia i Suport
9.1 Garantia limitada
This BRK SMCO100V-AC alarm comes with a 10-year limited warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use and service. For full warranty details, please refer to the documentation included with your product or contact customer support.
9.2 Atenció al client
If you have any questions regarding the installation, operation, or maintenance of your alarm, or if you require warranty service, please contact BRK/First Alert customer support. Contact information can typically be found on the product packaging or the manufacturer's official weblloc.





