Aldes ZRT Series Zone Register Terminals
By replacing static grilles in large central exhaust systems, the ZRT-1 model provides on-off control for on-demand ventilation. The optional model CAR-II Constant Airflow Regulator can be installed in the ZRT-1's extended duct collar to place a maximum flow limit on each terminal. Each ZRT is a combination grille, register box, control damper, and optional flow regulator.
The ZRT-2 model can be used for combination low-flow indoor air quality ventilation and on-demand high-flow spot ventilation using the same central fan system. This is achieved by integrating a CAR-II minimum airflow controller directly into the damper sub-assembly. With the damper completely closed, the factory calibrated CAR-II will still allow steady, low-continuous ventilation during fan operation. When other ZRT terminals are opened for on-demand control of spot ventilation, the closed ZRT-2s will maintain the specified low continuous rate through the CAR-II minimum flow control. By opening the ZRT-2's control damper, the low-flow regulator is removed from the air stream, allowing either controlled or full maximum-boost ventilation.
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Modulating orifices that automatically regulate airflow in duct systems. They compensate for changes in duct pressure from building pressure, clogged filters, etc.
Zoned exhaust ventilation kits. MPVS150 ventilator and Zone Register Terminals (ZRT-1) provide powerful-yet-silent zone controlled exhaust from bathrooms that are in use.
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