1. Produto acabadoview
The First Alert BRK SC-9120B is a hardwired smoke and carbon monoxide (CO) detector designed to provide continuous 24/7 protection for your home. This dual-sensor alarm combines an ionization smoke sensor for detecting fast-flaming fires and an electrochemical carbon monoxide sensor for accurate CO detection. It features a 120V AC power source with a 9V alkaline battery backup, ensuring operation even during power outage.
Figura 1.1: Frente view of the First Alert BRK SC-9120B Combination Smoke and CO Detector.
Key features include a single test/silence button, separate latching alarm indicators for smoke and CO, and a silencing technology that can temporarily quiet low-battery chirps for up to eight hours or nuisance alarms. The unit also provides an audible end-of-life signal, indicating when it's time for replacement.
Figure 1.2: The First Alert BRK SC-9120B detector installed on a ceiling, blending with home decor.
2. Informações importantes de segurança
Please read and understand all instructions before installing and operating your detector. Failure to follow these instructions may result in property damage, injury, or death.
- Esta unidade foi projetada apenas para uso interno.
- Ensure the detector is connected to a 120V AC power supply.
- A 9V alkaline battery is required for backup power and must be installed for proper operation. The battery is not included with the unit.
- Regularly test your detector as described in the Operating Instructions section.
- Não pinte o detector. A tinta pode obstruir as câmaras de detecção e impedir o funcionamento correto do alarme.
- The detector has an end-of-life signal. When this signal sounds, the unit must be replaced immediately.
3. Conteúdo da embalagem
Verifique se todos os itens estão presentes no seu pacote:
- First Alert SC-9120B Combination Smoke and CO Detector Unit
- Suporte de montagem
- Quick Connect Wiring Harness
- Acessórios de instalação (parafusos, buchas)
- Manual do usuário
Observação: A 9V alkaline battery is required for battery backup functionality and is not included in the package. Please purchase separately.
4. Configuração e instalação
The First Alert BRK SC-9120B is designed for easy installation, featuring a universal mount bracket and keyhole slots that simplify the process.
4.1 Escolhendo um local
For optimal protection, install smoke alarms on every level of your home, inside bedrooms, and outside sleeping areas. Carbon monoxide alarms should be installed on every level of your home and in sleeping areas. Avoid installing near vents, fans, or in extremely dusty, dirty, or humid areas.
4.2 Instruções de Fiação
This detector is hardwired and connects to your home's 120V AC electrical system. A large opening in the mounting bracket provides easy access to wiring. Use the quick connect wiring harness for secure connections.
Figura 4.1: Traseira view of the detector illustrating the wiring harness connection points (Black, Orange, White).
Conexões de fiação:
- Fio preto: Connect to the hot (live) wire from the electrical box.
- Fio Branco: Connect to the neutral wire from the electrical box.
- Fio Laranja: (Interconnect) Connect to the interconnect wire from other compatible First Alert/BRK alarms for synchronized alarming.
Ensure all power to the circuit is turned off at the main fuse or circuit breaker box before beginning installation.
4.3 Instalação da bateria
A 9V alkaline battery is required for backup power. The battery compartment is located on the side of the unit, allowing for installation and removal even when the unit is mounted.
Figura 4.2: Lateral view of the detector with the 9V battery compartment open.
Insert the 9V battery, ensuring correct polarity (+/-). A battery pull tab keeps the battery fresh until the unit is installed and activated. Once the battery is installed and the unit is connected to AC power, the detector is ready for operation.
5. Instruções de operação
Your First Alert BRK SC-9120B detector is designed for simple operation and clear indication of alarm conditions.
5.1 Botão de teste/silêncio
The large test/silence button on the front of the unit serves two primary functions:
- Teste: Press and hold the button to test the alarm's functionality. The alarm will sound, indicating that the smoke and CO sensors are working. Test the alarm weekly.
- Silenciando: In case of a nuisance alarm (e.g., from cooking smoke), press the button to temporarily silence the alarm. The alarm will reset after a few minutes if the smoke or CO levels return to normal.
- Low Battery Chirp Silence: If the unit chirps due to a low battery, pressing the button can silence the chirp for up to eight hours, allowing time to replace the battery.
5.2 Indicadores de Alarme
The detector features separate latching alarm indicators for smoke and carbon monoxide. These indicators will illuminate and remain on to show which unit initiated an alarm, even after the alarm has stopped sounding. This helps in identifying the source of the alert.
6. Manutenção
Regular maintenance ensures the continued reliable operation of your detector.
6.1 Substituição da bateria
Replace the 9V alkaline battery at least once a year, or immediately when the low battery chirp sounds (unless silenced temporarily). Use only recommended replacement batteries.
6.2 Limpeza do seu detector
Dust and debris can accumulate on the detector, potentially affecting its performance. Clean your detector at least once a month:
- Gently vacuum the exterior of the alarm using the soft brush attachment of your vacuum cleaner.
- Do not use cleaning solvents or sprays directly on the unit.
6.3 Sinal de Fim de Vida
The detector is designed with an end-of-life signal that provides an audible notification when the unit needs to be replaced. This typically occurs after 10 years of operation. When you hear this signal, replace the detector immediately.
7. Solução De Problemas
If your detector is not functioning as expected, refer to the following common issues and solutions:
| Problema | Possível causa | Solução |
|---|---|---|
| O alarme dispara frequentemente sem motivo aparente. | Nuisance alarm (cooking smoke, steam), dust accumulation, improper placement. | Press the Test/Silence button. Clean the detector. Relocate if consistently triggered by non-emergency events. |
| Unit chirps periodically. | Bateria fraca. | Replace the 9V battery. You can silence the chirp for up to 8 hours by pressing the Test/Silence button. |
| O alarme não dispara durante o teste. | No power (AC or battery), faulty unit. | Check AC power connection. Ensure 9V battery is installed correctly. If issues persist, replace the unit. |
| End-of-life signal sounds. | Detector has reached its operational lifespan. | Replace the entire detector unit immediately. |
| Only one interconnected alarm sounds. | Interconnect wiring issue, or the initiating unit's latching alarm indicator is the only one active. | Check interconnect wiring. Identify the initiating unit by its latching alarm indicator. |
8. Especificações
| Recurso | Detalhe |
|---|---|
| Marca | Primeiro Alerta |
| Número do modelo | SC9120B |
| Fonte de energia | Hardwired (120V AC) with 9V Battery Backup |
| Tipo de Bateria | Pilhas alcalinas de 9V (não incluídas) |
| Tipo de sensor | Ionização (fumaça), eletroquímica (CO) |
| Tipo de alarme | Audível |
| Dimensões do produto | 2.25"P x 5.59"L x 5.69"A |
| Peso do item | 10.4 onças |
| Material | Plástico |
| Uso | Somente para uso interno |
| Fabricante | BRK Brands |
9. Garantia e Suporte
The First Alert BRK SC-9120B Combination Smoke and Carbon Monoxide Detector comes with a Garantia limitada de 10 anoEsta garantia cobre defeitos de material e fabricação sob uso e serviço normais.
For warranty claims, technical support, or further assistance, please refer to the contact information provided in the documentation included with your product or visit the official First Alert website.
