Увод
The Broan-NuTone C907 Doorbell Transformer is designed to provide reliable power for your doorbell system. This 16-volt, 30VA transformer is suitable for powering up to three doorbells and is compatible with various smart video doorbells. It features an easy-to-install lock-mount or wall-mount design and includes a thermal cut-off switch for safety.

Image: The Broan-NuTone C907 Doorbell Transformer, a compact metal unit with two screw terminals on a red base.
Безбедносне информације
- УПОЗОРЕЊЕ: Опасност од струјног удара. Искључите напајање на прекидачу или кутији са осигурачима пре инсталације или сервисирања.
- Инсталацију треба да изврши квалификовани електричар или у складу са локалним електричним прописима.
- Ensure the transformer is installed in a dry location, protected from moisture.
- The thermal cut-off switch is designed to shut off the system in case of excessive temperature. Do not bypass or tampер са овом сигурносном функцијом.
- Верифи волtage and VA requirements of your doorbell system before connecting the transformer.

Image: The C907 transformer showing the "cULus LISTED" label, indicating compliance with safety standards.
Садржај пакета
Пакет садржи следећу ставку:
- Broan-NuTone C907 Doorbell Transformer (1 unit)
Подешавање и инсталација
The C907 transformer is designed for easy installation, compatible with standard single-gang junction boxes. It can be mounted using a lock-mount or wall-mount method.
Потребни алати:
- Одвијач (Пхиллипс и/или равна глава)
- Жице стриптизета
- Волtagе тестер
- Клијешта
Кораци инсталације:
- Искључите напајање: Before beginning any electrical work, turn off power to the circuit at the main electrical panel. Verify power is off using a voltagе тестер.
- Монтирајте трансформатор: The transformer can be mounted directly to a standard single-gang junction box. Secure the transformer using the integrated lock-mount or by screwing it to a wall surface near the junction box.
- Цоннецт Хигх Волtage Wires (120V AC):
- Повежите црна wire from the transformer to the вруће (usually black) wire from the power source.
- Повежите бела wire from the transformer to the неутралан (usually white) wire from the power source.
- Повежите зелена wire from the transformer to the тло (usually green or bare copper) wire from the power source.
- Цоннецт Лов Волtage Wires (16V AC):
- Повежите ниску волtage wires from your doorbell chime and doorbell button to the two screw terminals on the transformer.
- The transformer provides 16V AC output. Refer to your doorbell chime and button wiring diagrams for specific connections.
- Сигурно ожичење: Ensure all wiring is neatly tucked into the junction box and any covers are securely fastened.
- Врати снагу: Turn the power back on at the main electrical panel.
- Тест систем: Test your doorbell system to ensure proper operation.

Image: The C907 transformer showing the high-voltage input wires (black, white, green) and the low-voltagе излазне терминале.

Слика: Крупни план view of the two low-voltage screw terminals on the C907 transformer.
Упутство за употребу
Once properly installed, the Broan-NuTone C907 transformer continuously supplies 16 volts of alternating current (AC) at 30 volt-amperes (VA) to your doorbell system. This power is sufficient for operating up to three standard doorbells or compatible smart video doorbells. The transformer operates silently and requires no user interaction after installation.
Одржавање
The Broan-NuTone C907 transformer is designed for maintenance-free operation. Periodically, it is recommended to:
- Inspect the wiring connections for any signs of wear or looseness. Ensure power is disconnected before inspection.
- Keep the area around the transformer clean and free from dust or debris to ensure proper heat dissipation.
- Ensure the transformer remains in a dry environment.
Решавање проблема
If your doorbell system is not functioning correctly after installing the C907 transformer, consider the following:
- No Power to Doorbell/Chime:
- Check the circuit breaker or fuse for the circuit supplying power to the transformer.
- Verify all high-voltage (120V AC) connections to the transformer are secure.
- Осигурајте ниску јачину звукаtage wires are correctly connected to the transformer terminals and to the doorbell chime/button.
- Smart Video Doorbell Issues (e.g., intermittent power, offline status):
- Many smart video doorbells require a minimum of 16V AC and sufficient VA (typically 30VA) for stable operation. The C907 provides 16V 30VA, which is generally recommended.
- Ensure the doorbell's internal settings (if applicable) are configured for a mechanical chime or the correct power source.
- If issues persist, consult the specific smart doorbell manufacturer's troubleshooting guide.
- Chime Not Ringing Fully or Weakly:
- This can occur if the chime mechanism requires more power than supplied or if there's a long wire run causing voltage drop. The 30VA rating of the C907 is designed to mitigate this for most systems.
- Check for loose connections at the chime unit or doorbell button.
- Transformer Overheating/Shutting Off:
- The transformer has a thermal cut-off switch. If it's overheating, it may indicate an overload or a short circuit in the low-voltagе ожичење.
- Disconnect power and inspect all low-voltage wiring for shorts or damage.
- Ensure the total VA requirement of all connected doorbells/chimes does not exceed 30VA.
Спецификације
| Бренд: | Броан-НуТон |
| Модел: | Ц907 |
| Улазни волtage: | 120В АЦ |
| Оутпут Волtage: | 16В АЦ |
| волт-Amperes (VA): | 30ВА |
| Тренутна оцена: | 15 Amps (Input circuit protection) |
| Тип монтаже: | Lock Mount or Wall Mount |
| Димензије производа (Д x Ш x В): | 3 cm x 2.65 cm x 2.19 cm |
| Тежина артикла: | 1.6 фунти |
| Сертификат о безбедности: | цУЛус Листед |
| Компатибилност: | Standard doorbells, Smart video doorbells (16V AC compatible) |
Информације о гаранцији
The Broan-NuTone C907 Doorbell Transformer comes with a one-year limited warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. For specific terms and conditions, please refer to the warranty documentation included with your product or contact Broan-NuTone customer support.
Подршка
For technical assistance, installation questions, or warranty claims, please contact Broan-NuTone customer support. You can typically find contact information on the manufacturer's official webсајту или унутар паковања производа.
When contacting support, please have your product model number (C907) and date of purchase available.