These DigitalReady AAF Herman Nelson unit ventilators are easily field-integrated with compatible DDC systems.

These Digital Ready' AAF"-Herman Nelson" unit ventilators are easily field-integrated with virtually any compatible Direct Digital Control (DDC) unit ventilator controller and Building Automation System. Designed specifically for classroom ventilation, the unit ventilators help improve indoor air quality and learning productivity. New airflow technology makes the units up to 65% quieter than previous models. McQuay International, 13600 Industrial Park Blvd., Minneapolis, MN 55441; (800) 432-1342.

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