The Broan 750 is a 100 CFM ventilation fan equipped with a light and night light, designed for installation in small to medium-sized bathrooms. It features a quiet sound rating of 5.0 sones and is UL listed for use in bathrooms when installed with a GFCI circuit. This article provides a detailed, step-by-step guide to the installation of the Broan 750, based solely on the manufacturer documentation and technical specifications provided in the source material.
Overview of the Broan 750
The Broan 750 is a versatile ventilation solution for residential bathrooms. It is suitable for rooms up to approximately 90 to 95 square feet and includes a glass lens that diffuses light from a 100-watt incandescent bulb (sold separately). The fan also features a 7-watt night light, which provides low-level illumination for nighttime visibility. The unit is designed for ceiling-mounted installation and must be connected to a grounded electrical circuit.
Key features of the Broan 750 include:
- 100 CFM air movement, effective for removing moisture and reducing the risk of mold and mildew.
- 5.0 sones, a measure of sound level, ensuring quiet operation.
- Glass lens with 100-watt bulb (not included).
- 7-watt night light (bulb sold separately).
- Tapered duct adapter with a built-in damper for 4-inch duct compatibility.
- UL listed for use in tub or shower enclosures when installed with a GFCI circuit.
- Type IC rated, allowing the unit to be installed in direct contact with thermal insulation.
- Not intended for kitchen use.
Installation Requirements and Preparations
Before beginning installation, it is essential to review the requirements and prepare the necessary tools and materials. The Broan 750 is designed for ceiling-mounted installation and must be connected to a grounded electrical circuit with a GFCI (Ground Fault Circuit Interrupter) when installed near a tub or shower. The installation process involves mounting the unit, connecting the wiring, and securing the grille and light components.
Required Tools and Materials
The following tools and materials are typically needed for the installation of the Broan 750:
- Screwdriver (Phillips and flathead)
- Wire stripper
- Voltage tester
- Electrical tape
- Mounting hardware (included with the unit)
- 100-watt incandescent bulb (not included)
- 7-watt night light bulb (not included)
The installation instructions and components are detailed in the manufacturer’s documentation and installation guide.
Step-by-Step Installation Instructions
The installation process for the Broan 750 involves several key steps, including mounting the unit, connecting the electrical wiring, and securing the grille and light components. Below is a detailed breakdown of each step based on the information provided in the source material.
Step 1: Choose and Prepare the Installation Location
The Broan 750 is designed for ceiling-mounted installation and must be placed in a location that allows for proper air circulation. According to the manufacturer’s documentation, the unit is suitable for installation above a bathtub or shower if the circuit is GFCI protected. The location should also be free from obstructions and allow for easy access to the electrical wiring.
The unit must be mounted in a location where it will not be exposed to excessive moisture or direct water contact. The plastic grille is impervious to typical bathroom conditions, but the unit must be installed with proper ventilation to prevent overheating.
Step 2: Mount the Housing
The Broan 750 is installed using a housing that must be securely attached to the ceiling structure. The manufacturer provides mounting brackets and screws for this purpose. The housing must be aligned with the ceiling and secured to the structural framing.
- Locate ceiling joists or support structures to ensure the unit is mounted securely.
- Attach the mounting bracket to the joist using the provided screws.
- Position the housing over the mounting bracket and secure it in place.
- Ensure the housing is level and aligned with the ceiling surface.
The housing is designed to fit standard ceiling thicknesses and includes a tapered duct adapter for 4-inch duct connections.
Step 3: Connect the Electrical Wiring
The Broan 750 must be connected to a grounded electrical circuit with a GFCI when installed in a bathroom or near a tub or shower. The wiring process involves connecting the fan, light, and night light components to the electrical supply.
- Turn off the power to the circuit at the main electrical panel before beginning any wiring.
- Strip the insulation from the electrical wires to expose the conductors.
- Connect the fan motor, light, and night light wires to the appropriate terminals on the unit.
- Secure the connections with wire nuts or terminal blocks.
- Cap any unused wires with electrical tape to prevent accidental contact.
- Reinstall the wiring cover to protect the connections.
The unit can be wired for either simultaneous or separate operation of the fan and light. The manufacturer provides instructions for both wiring configurations.
Step 4: Install the Fan and Light Components
After the housing and electrical connections are in place, the fan and light components can be installed.
- Insert the fan motor into the housing and secure it with the provided screws.
- Attach the glass lens to the housing and ensure it is properly aligned.
- Install the light bulb (100-watt incandescent) into the socket.
- Secure the night light bulb (7-watt) into its designated socket.
The glass lens extends approximately 1-5/8 inches from the ceiling surface and must be positioned to allow for proper lighting and airflow.
Step 5: Secure the Grille and Final Inspection
Once the fan and light components are installed, the grille can be attached to the housing.
- Align the grille with the housing and ensure it is level.
- Secure the grille with the provided screws.
- Test the fan and light by restoring power to the circuit and verifying proper operation.
The grille is designed to blend with standard ceiling paint and is available in white to match most bathroom finishes.
Step 6: Final Checks and Safety Considerations
Before completing the installation, it is important to perform a final inspection to ensure all components are properly secured and the unit is functioning correctly.
- Verify that the unit is grounded and connected to a GFCI circuit if installed in a bathroom.
- Test the fan, light, and night light to ensure they operate as intended.
- Check for any loose connections or exposed wiring.
- Ensure the unit is installed at a safe height and away from water sources.
The manufacturer also provides a warning about the use of flammable materials and emphasizes the importance of keeping combustible materials at least 3 feet away from the heater unit if it is installed in a separate location.
Troubleshooting Common Issues
While the Broan 750 is designed for reliable performance, users may encounter issues during installation or operation. Below are some common problems and solutions based on the information provided in the documentation.
Issue: Unit Does Not Power On
- Solution: Verify that the circuit breaker is on and that the unit is properly grounded. Check the wiring connections to ensure they are secure and not damaged.
Issue: Fan Operates, but Light Does Not
- Solution: Check the light bulb to ensure it is properly seated in the socket. Replace the bulb if it is burned out or damaged.
Issue: Excessive Noise or Vibration
- Solution: Ensure the unit is securely mounted and that all screws and components are tightened. Excessive vibration may indicate an unbalanced fan blade or loose installation.
Issue: High Energy Consumption
- Solution: The Broan 750 uses a 100-watt incandescent bulb, which is not energy-efficient. Consider replacing it with a lower-wattage or energy-saving alternative if available.
Maintenance and Care
To ensure the Broan 750 continues to operate efficiently, regular maintenance and cleaning are recommended.
- Clean the grille and glass lens with a soft cloth and mild detergent to remove dust and buildup.
- Inspect the wiring connections periodically to ensure they remain secure and free from corrosion.
- Replace the light bulb as needed, using only the recommended wattage and type.
The manufacturer provides a one-year warranty for the Broan 750, covering defects in materials and workmanship. However, this warranty does not cover damage caused by improper installation, misuse, or failure to follow the manufacturer’s instructions.
Conclusion
The Broan 750 is a high-performance ventilation fan with integrated lighting and a night light feature, making it an ideal solution for residential bathrooms. The installation process involves careful planning, secure mounting, and proper electrical connections to ensure safe and efficient operation. By following the step-by-step instructions provided in the manufacturer’s documentation, users can install the unit with confidence and enjoy improved air quality and comfort in their home.
Proper installation, including the use of a GFCI circuit and secure mounting, is essential for safety and compliance with electrical codes. Regular maintenance and inspection will help extend the life of the unit and ensure it continues to operate at peak performance.