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The First Alert SC9120B Hardwired Combination Ionization Smoke and Carbon Monoxide Alarm with Battery Backup provides comprehensive safety by detecting both smoke from fast-flaming fires and carbon monoxide (CO) leaks. This unit is designed for hardwired installation into your home's electrical system, ensuring continuous operation with a battery backup for power outages.
Imatge: Frontal view of the First Alert BRK SC9120B-12 combination smoke and carbon monoxide detector, showing the test/silence button and smoke/CO indicators.
Les característiques clau inclouen:
- Dual Detection: Ionization smoke sensor for fast-flaming fires and advanced electrochemical sensor for carbon monoxide.
- Cablejat amb bateria de reserva: Ensures continuous protection even during power failures.
- Sirena forta: 85-decibel alarm to alert occupants to danger.
- Interconnectivitat: Can connect with up to 12 other compatible First Alert or BRK hardwired alarms.
- Fàcil instal·lació: Universal mounting bracket and tamper-resistant locking pins.
- Botó de prova/silenci: Conveniently check functionality and mute false alarms.
- Latching Indicator: Identifies which unit triggered the alarm in an interconnected system.
Instal·lació i Configuració
Proper installation is crucial for the effective operation of your First Alert detector. This unit is designed for hardwired installation.
Abans de la instal·lació:
- Ensure power is turned off at the circuit breaker before beginning installation.
- Read the full installation manual (PDF link available in product documents) for detailed instructions.
Passos d'instal·lació:
- Suport de muntatge: Attach the universal mounting bracket to the electrical junction box on the ceiling or wall. The screw holes are designed to fit most standard junction boxes.
- Cablejat: Connect the detector's wiring harness to your home's electrical system according to local electrical codes. Ensure secure connections.
- Instal·lació de la bateria: Insert the included 9V battery into the side-load battery compartment. This provides backup power.
- Connecteu el detector: Align the detector with the mounting bracket and twist clockwise until it locks securely into place. Tamper-resistant locking pins help keep the alarm secure.
- Encès: Restore power at the circuit breaker. The green LED indicator on the detector should illuminate, indicating it is receiving power.
- Unitat de prova: Press and hold the Test/Silence button to ensure the alarm sounds. Refer to the "Operating Your Detector" section for more details on testing.
Imatge: View of the First Alert BRK SC9120B-12 detector with the battery compartment open, showing the 9V battery slot.
Image: The First Alert BRK SC9120B-12 detector installed on a ceiling in a residential setting, demonstrating typical placement.
Operating Your Detector
Funcionament normal:
During normal operation, the green LED light on the detector will flash approximately once every 60 seconds, indicating that the unit is functioning correctly and receiving power.
Prova de l'alarma:
It is recommended to test your detector weekly. To test:
- Press and hold the Test/Silence button located on the front of the unit.
- The alarm will sound a series of loud beeps (typically 3 beeps for smoke, 4 beeps for CO).
- Release the button. The alarm should stop sounding.
Funció de silenci:
The Test/Silence button can also be used to temporarily silence nuisance alarms (e.g., from cooking smoke). Press the button once to silence the alarm for a short period. If the smoke or CO concentration is still present, the alarm will reactivate after the silence period.
Understanding Alarm Signals:
The detector uses distinct audible patterns to indicate different threats:
- Alarma de fum: Three long beeps, pause, three long beeps.
- Alarma de monòxid de carboni: Four quick beeps, pause, four quick beeps.
- Avís de bateria baixa: One short chirp every minute. Replace the 9V battery immediately.
- Avís de final de vida: Five chirps every minute. This indicates the unit needs to be replaced.
Image: Informational graphic explaining that carbon monoxide is an invisible, odorless, and deadly gas, and CO alarms provide early warning.
Image: Graphic illustrating recommended placement of smoke and carbon monoxide alarms: one on every level and in every bedroom.
Manteniment
Regular maintenance ensures your detector remains in optimal working condition.
- Proves setmanals: Test the alarm weekly using the Test/Silence button.
- Neteja mensual: Vacuum the detector cover monthly to remove dust and debris that could interfere with sensor operation. Do not use cleaning solutions or solvents.
- Substitució de la bateria: Replace the 9V battery annually, or immediately when the low battery chirp sounds. Even though it's hardwired, the battery backup is vital.
- Substitució d'unitats: Replace the entire unit every 7-10 years from the date of manufacture, or when the end-of-life warning sounds.
Resolució de problemes
Si el detector no funciona com s'espera, consulteu els problemes i solucions habituals següents:
| Problema | Causa possible | Solució |
|---|---|---|
| L'alarma sona un cop cada minut. | Bateria baixa. | Substituïu la bateria de 9V. |
| Alarm chirps five times every minute. | Final de la vida útil de la unitat. | Replace the entire detector unit. |
| Alarmes molestes (falses alarmes). | Cooking smoke, steam, high humidity, dust. | Press the Test/Silence button. Ventilate the area. Clean the detector. Relocate if persistent. |
| L'alarma no sona durant la prova. | Sense alimentació, bateria morta, unitat defectuosa. | Check power connection. Replace battery. If still not working, replace unit. |
For further assistance, consult the full user manual or contact First Alert customer support.
Especificacions
| Característica | Detall |
|---|---|
| Marca | Primera alerta |
| Número de model | BRK SC9120B-12 |
| Font d'alimentació | Hardwired (120V AC) with 9V Battery Backup |
| Tipus de sensor | Ionization (Smoke), Electrochemical (CO) |
| Potència de l'alarma | 85 Decibels at 10 feet |
| Dimensions del producte | 8"D x 19"W x 8"H (Note: This seems to be package dimensions, actual unit is smaller) |
| Pes de l'article | 8 lliures (per a un paquet de 12) |
| Interconnectivitat | Up to 12 compatible First Alert/BRK hardwired alarms |
| Components inclosos | Smoke Detector, batteries, mount, user's manual |
| Durada mitjana de la bateria | 8760 Hours (approximately 1 year for 9V backup) |
Imatge: Side profile of the detector showing approximate dimensions: 5.6 inches in diameter and 1.9 inches in depth.
Garantia i Suport
This First Alert BRK SC9120B-12 detector comes with a Garantia limitada de 7 anys.
For warranty claims, technical support, or additional information, please refer to the official First Alert website or contact their customer service directly. Always keep your proof of purchase.
You can also find the full User Manual (PDF) and Installation Manual (PDF) for this product online:
