Airflow and Zone Control Air System

American ALDES’ airflow and zone control products are designed to introduce flexibility and dynamic control to any central ventilation system. Millions of constant airflow regulators (CARs) have been installed to eliminate ventilation issues such as stack effect and poor airflow balance to ensure precise regulation of building ventilation systems. Precise regulation of building ventilation systems saves energy by reducing the load placed on heating and cooling systems. The patented ZRT zone controls save additional energy by boosting exhaust ventilation rates only in occupied spaces, eliminating wasteful ventilation in areas that do not require it.

CSR-R-II

Airflow and Zone Controls CSR-R-II

American ALDES CSR-R-II - Constant Supply Register (Round Duct). The model CSR-II Constant Flow Register incorporates a modulating orifice that automatically regulates airflows in duct systems to constant levels. The passive control element in the CSR-II responds to duct pressure, and requires no electric or pneumatic sensors or controls.

The CSR-II compensates for changes in duct pressure caused by thermal stack effect, building pressure, dust clogging of filters, etc. The CSR-II also eliminates the need for on-site balancing in supply air duct systems.

The active control element of the CSR-II is a unique aerofoil. Using Bernoulli effect, the active control element of the CSR-II is an aero-wing damper that lifts in response to increasing static pressure. This operation regulates the free-area opening through the control, resulting in maintenance of velocity and specific airflow set points. Each CSR-II is designed and produced for control of air in temperatures ranging from -25° to 140° F (-32° to 60° C.)

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