BROAN-NuTone L400 Ventilator

The BROAN-NuTone L400 Ventilator is a high-capacity centrifugal inline blower designed for continuous duty in commercial and light industrial applications. Delivering 434 CFM at 0.1" SP, this 120v unit features a dynamically balanced centrifugal blower wheel and a 20-gauge galvanized steel housing to minimize vibration and resist corrosion. The permanently lubricated motor is engineered for high-static pressure environments, making it ideal for long duct runs. This high-capacity ventilation fan utilizes an 8-position mounting system, allowing for flexible discharge orientations to suit complex mechanical layouts. With a 2.3 Sones rating, it provides effective commercial air exhaust without excessive noise. Contractors typically specify the L400 for integrated HVAC ventilation in conference rooms, restrooms, or storage areas requiring consistent air turnover and reliable pressure-optimized airflow under variable loads.

• High-Volume Airflow: Moves 434 CFM to handle large-scale moisture and contaminant removal in commercial spaces.
• Rugged Construction: 20-gauge galvanized steel housing ensures structural integrity and durability in demanding environments.
• Versatile Installation: Horizontal, vertical, or in-line mounting options with adjustable discharge positions for tight mechanical rooms.
• Quiet Operation: The impact-resistant centrifugal wheel is balanced to reduce mechanical hum and resonant noise.
• Easy Maintenance: The motor and blower assembly can be serviced without removing the entire housing from the ductwork.

Common Technical Questions

What duct size is required for the BROAN L400?
This unit is designed for a 4-1/2" x 18-1/2" rectangular duct connection, which can be adapted to round ductwork using a standard transition fitting.

Can the L400 be used with a speed controller?
Yes, this 120v ventilator is compatible with solid-state speed controls to adjust CFM output based on specific zone requirements.

Is this unit suitable for kitchen grease exhaust?
No, the L400 Ventilator is intended for general ventilation. It is not UL-rated for commercial kitchen grease hoods or high-heat cooking exhaust.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.