American Aldes Ventilation Corp.: Zone Register TerminalsZone register terminals (ZRT) introduce flexibility and dynamic control to central exhaust ventilation systems. Each ZRT is a combination grille/register box, control damper, and optional constant airflow regulator. This combination provides different controls schemes without the need for expensive pneumatic, electronic, or DDC control systems. The ZRT-1 provides zone-controlled spot ventilation, while the ZRT-2 provides low, continuous IAQ ventilation.

American Aldes Ventilation Corp.