NexGen – A Fit for Every Building

Nex Gen Feature Aug 2024

Posted on August 06, 2024

NRAK Series Compact DOAS

Dedicated Outdoor Air Systems

In its simplest form, a dedicated outdoor air system (DOAS) is a type of HVAC system whose primary function is to deliver treated outdoor air into the space it serves. These systems filter the incoming air, remove moisture, and generally reheat the air back to 72°F (or neutral). However, due to the inherent flexibility of the NexGen product line, these units can be designed for dew point control, make up air, and many other applications.

Solutions for Tight Construction

Less Pollutants, More Clean Air

Spaces with tight construction need fresh air. As we make our indoor environments tighter, less air flows through them. With less air circulation, pollutants can build up in the space.

The pollutants can include:

  • Carbon dioxide from breathing
  • Smoke from cooking
  • Volatile organic compounds (VOCs) emitted from cleaning materials and consumer products Moisture, which can lead to mold if not controlled properly

Solution: A mechanical ventilation system that delivers treated outdoor air.

With an extremely airtight envelope and a mechanical ventilation system that controls exactly where and how much air is delivered, you get the quantity of fresh air you need, deliver the fresh air where it’s needed, and you get it no matter the conditions of the outdoor air.

A Fit for Every Building

NexGen’s product line provides an option for every building and broad range of applications.

1 Series

NexGen Series 1


  • Capacity from 3 - 10 Tons
  • Airflow: 750 - 2,500 CFM
  • Ultra-Small Footprint with Energy Efficient Operation
  • 100% OA, Recirculating, Mixed Operation

3 Series

NexGen Series 3


  • Capacity from 10 - 25 Tons
  • Airflow: 2,500 - 6,250 CFM
  • Fits Many Competitor’s Footprints with More Capacity
  • 100% OA, Recirculating, Mixed Air, Energy Recovery, and Exhaust Operation

5 Series

NexGen Series 5


  • Capacity from 20 - 45 Tons
  • Airflow: 5,000 - 11,000 CFM
  • Small Footprint with Large Heating Capacity
  • 100% OA, Recirculating, Mixed Air, Energy Recovery, and Exhaust Operation

7 Series

NexGen Series 7


  • Capacity from 45 - 90 Tons
  • Airflow: 11,250 - 19,000 CFM
  • Fits Many Competitor’s Footprints with More Capacity
  • 100% OA, Recirculating, Mixed Air, Energy Recovery, and Exhaust Operation

View the brochure for additional details.

Solutions for Every Application

Solutions for Every Application

Contact your local TBCo branch with questions or for more information.