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  • CSB3-CS-F
The Aldes CSB3-CS-F Constant Supply Box is a ceiling register box with integral ceiling radiation damper which incorporates an automatic, pressure independent balancing damper that regulates supply airflow in duct systems to constant levels. The passive control element, or CAR3, in the CSB3-CS-F requires no electric or pneumatic power or sensors, and works solely off system pressure. Each CSB3-CS-F includes a painted aluminum grille, mounting brackets, and all necessary hardware for installation.

The CSB3-CS-F compensates for changes in duct pressure caused by stack effect, operable windows and doors, wind, loading filters, etc. The CSB3-CS-F provides a low-cost solution to maintaining the correct airflow balance of ventilation systems, improving system performance and indoor air quality, and provides significant savings on annual operating costs.
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Airflow Range (cfm)

Collar Diameter (in)

Nominal Grille Width (in)

Nominal Grille Height (in)

Item #

Airflow Range

Collar Diameter

Nominal Grille Width

Nominal Grille Height

N/A 15 to 85 cfm N/A 4 in N/A 6 in N/A 6 in
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N/A 15 to 85 cfm N/A 6 in N/A 10 in N/A 6 in
N/A 15 to 85 cfm N/A 6 in N/A 10 in N/A 8 in
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