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  • CEB3-CS
The Aldes CEB3-CS Constant Exhaust Box is a ceiling register box which incorporates an automatic, pressure independent balancing damper that regulates exhaust airflow in duct systems to constant levels. The passive control element (CAR3) in the CEB3-CS requires no electric or pneumatic power, sensors, and works solely off system pressure. Each CEB3-CS includes mounting brackets, and all necessary hardware for installation.

The CEB3-CS compensates for changes in duct pressure caused by stack effect, operable windows and doors, wind, loading filters, etc. The CEB3-CS 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 6 in N/A 10 in N/A 10 in
N/A 15 to 85 cfm N/A 6 in N/A 12 in N/A 6 in
N/A 15 to 85 cfm N/A 6 in N/A 12 in N/A 8 in
N/A 15 to 85 cfm N/A 6 in N/A 12 in N/A 10 in
N/A 15 to 85 cfm N/A 6 in N/A 12 in N/A 12 in
N/A 35 to 180 cfm N/A 5 in N/A 6 in N/A 6 in
N/A 35 to 180 cfm N/A 5 in N/A 8 in N/A 6 in
N/A 35 to 180 cfm N/A 5 in N/A 8 in N/A 8 in
N/A 35 to 180 cfm N/A 5 in N/A 10 in N/A 6 in
N/A 35 to 180 cfm N/A 5 in N/A 10 in N/A 8 in
N/A 35 to 180 cfm N/A 5 in N/A 10 in N/A 10 in
N/A 35 to 180 cfm N/A 5 in N/A 12 in N/A 6 in
N/A 35 to 180 cfm N/A 5 in N/A 12 in N/A 8 in
N/A 35 to 180 cfm N/A 5 in N/A 12 in N/A 10 in
N/A 35 to 180 cfm N/A 5 in N/A 12 in N/A 12 in
N/A 35 to 180 cfm N/A 6 in N/A 6 in N/A 6 in
N/A 35 to 180 cfm N/A 6 in N/A 8 in N/A 6 in
N/A 35 to 180 cfm N/A 6 in N/A 8 in N/A 8 in
N/A 35 to 180 cfm N/A 6 in N/A 10 in N/A 6 in
N/A 35 to 180 cfm N/A 6 in N/A 10 in N/A 8 in
N/A 35 to 180 cfm N/A 6 in N/A 10 in N/A 10 in
N/A 35 to 180 cfm N/A 6 in N/A 12 in N/A 6 in
N/A 35 to 180 cfm N/A 6 in N/A 12 in N/A 8 in
N/A 35 to 180 cfm N/A 6 in N/A 12 in N/A 10 in
N/A 35 to 180 cfm N/A 6 in N/A 12 in N/A 12 in
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