1. Product Overview
The Broan-NuTone L300 High Capacity Ventilator Fan is designed to provide powerful and quiet ventilation for various spaces, including offices, commercial buildings, and public restrooms. This fan features a single, impact-resistant centrifugal blower wheel motor that is permanently lubricated for continuous operation. With a 2.9 Sone rating and 308 CFM airflow, it ensures effective air movement while maintaining a low noise level.
The unit is constructed with a durable 20-gauge galvanized steel housing and includes an 8-inch round metal duct connector. Its versatile design allows for horizontal, vertical, or in-line ducting with an appropriate adapter. The fan can be installed in either ceiling or wall applications, and its 14" x 14" white plastic grille can be painted to match existing decor.
Key Features:
- High-Capacity Performance: Operates with 308 CFM airflow, 2.9 Sones, and 120V for efficient ventilation.
- Durable Construction: Features a 20-gauge galvanized steel housing and an 8-inch round metal duct connector for long-lasting use.
- Flexible Installation: Supports horizontal, vertical, or in-line ducting, and can be installed in ceilings or walls.
- Quiet and Continuous Operation: Permanently lubricated motor ensures quiet and reliable performance.
- Versatile Application: Ideal for large rooms in commercial settings requiring consistent ventilation.
2. Safety Information
Read and understand all instructions before installing, operating, or servicing this product. Failure to follow these instructions may result in electric shock, fire, property damage, or personal injury.
General Safety Precautions:
- Always disconnect power at the service panel before working on the fan.
- Installation and wiring must be done by a qualified person in accordance with all applicable codes and standards, including fire-rated construction codes.
- Use this unit only in the manner intended by the manufacturer. If you have questions, contact the manufacturer.
- Do not use this fan with any solid-state speed control device unless specifically approved by the manufacturer.
- Never place any object into the fan blades.
- This product is designed for general ventilating use only. Do not use to exhaust hazardous or explosive materials and vapors.
Electrical Safety:
- Ensure the electrical supply matches the voltage and current requirements specified on the product label (120V).
- Proper grounding is essential to reduce the risk of electric shock.
- All wiring connections must be secured and insulated to prevent short circuits.
3. Package Contents
Verify that all components are present before beginning installation:
- Broan-NuTone L300 Ventilator Fan Unit
- White Plastic Grille (14" x 14")
- Installation Hardware (screws, wire connectors, etc. - specific items may vary)
- Instruction Manual
4. Installation Instructions
The Broan-NuTone L300 fan is designed for installation in ceilings or walls. It requires an 8-inch round duct for proper ventilation. Ensure adequate space and structural support are available at the chosen installation location.
Pre-Installation Steps:
- Turn off power at the circuit breaker or fuse box before starting any work.
- Determine the optimal location for the fan, considering ducting routes and electrical access.
- Prepare the opening in the ceiling or wall according to the fan housing dimensions (approximately 11.75"D x 12.25"W x 12.25"H).
Mounting the Fan:
- Secure the fan housing to the ceiling joists or wall studs using appropriate fasteners. Ensure the housing is level and firmly attached.
- Connect the 8-inch round ductwork to the fan's duct connector. Seal all duct connections with duct tape or mastic to prevent air leakage. The duct can be configured for horizontal or vertical discharge.
Electrical Wiring:
- Route the electrical supply cable to the fan's wiring compartment.
- Connect the household wiring to the fan's wiring according to the wiring diagram provided in the full manual and local electrical codes. Ensure proper grounding.
- Secure the wiring compartment cover.
Grille Installation:
- Once the fan is wired and ducted, attach the white plastic grille to the fan housing. The grille is typically secured with spring clips or screws.
- If desired, the grille can be painted to match the room's decor before installation.
5. Operating Instructions
The Broan-NuTone L300 Ventilator Fan is designed for simple operation, typically controlled by a standard wall switch. It operates at a single speed.
Basic Operation:
- Ensure the fan is properly installed and wired to a power source.
- Activate the wall switch connected to the fan to turn the unit ON.
- Deactivate the wall switch to turn the unit OFF.
For optimal performance, operate the fan during and after activities that generate moisture or odors, such as cooking or using a public restroom, to effectively remove airborne contaminants.
6. Maintenance
Regular maintenance ensures the longevity and efficient operation of your Broan-NuTone L300 Ventilator Fan. Always disconnect power before performing any maintenance.
Cleaning the Grille:
- Turn off power to the fan at the service panel.
- Carefully remove the grille from the fan housing.
- Wash the grille with mild soap and water. Rinse thoroughly and allow it to dry completely before reattaching.
Cleaning the Fan Interior:
- With the grille removed and power off, gently vacuum or wipe the fan blades and interior surfaces of the housing to remove dust and debris.
- Do not use abrasive cleaners or solvents.
Motor Lubrication:
The motor in your Broan-NuTone L300 fan is permanently lubricated and does not require additional oiling.
7. Troubleshooting
If you experience issues with your ventilator fan, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan does not operate | No power supply Loose wiring connection Faulty switch | Check circuit breaker/fuse Verify all wiring connections are secure (with power off) Test or replace the wall switch |
| Low airflow | Blocked grille or ductwork Ductwork too long or restrictive Damaged fan blade | Clean grille and check duct for obstructions Ensure ducting meets recommended specifications Inspect fan blade for damage (with power off) |
| Excessive noise | Loose mounting Debris in fan housing Damaged motor/blower wheel | Ensure fan housing is securely mounted Clean fan interior (with power off) Contact customer support if motor/blower is damaged |
If the problem persists after attempting these solutions, contact Broan-NuTone customer support.
8. Specifications
| Specification | Detail |
|---|---|
| Brand | Broan-NuTone |
| Model Number | L300 |
| Air Flow Capacity | 308 CFM (Cubic Feet Per Minute) |
| Noise Level | 2.9 Sones |
| Voltage | 120V |
| Wattage | 212 watts |
| Product Dimensions (D x W x H) | 11.75" x 12.25" x 12.25" |
| Item Weight | 19.26 pounds |
| Installation Type | Ceiling Mount or Wall Mount |
| Duct Connector Size | 8-inch Round |
| Housing Material | 20-gauge Galvanized Steel |
| Grille Size | 14" x 14" |
| Control Method | Touch (via external switch) |
| Included Components | Vent fan unit |
| Indoor/Outdoor Usage | Indoor |
9. Official Product Video
Watch the official product line video for an overview of Broan-NuTone ventilation fans.
10. Warranty and Support
For warranty information, technical support, or replacement parts, please refer to the warranty card included with your product or visit the official Broan-NuTone website. Keep your purchase receipt as proof of purchase for warranty claims.
Broan-NuTone Official Website: www.broan-nutone.com
