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  • CSR3-S-F
The Aldes CSR3-S-F Constant Supply Register with integral fire damper incorporates an automatic, pressure independent balancing damper that regulates airflow in duct systems to constant levels. The passive control element in the CSR3-S-F requires no electric or pneumatic power or sensors and works solely off system pressure.

The CSR3-S-F compensates for changes in duct pressure caused by stack effect, operable windows and doors, wind, loading filters, etc. CSR3-S-F provides a low-cost solution to maintaining the correct airflow balance of ventilation systems, improving system performance and indoor air quality, which can provide significant savings on annual operating costs.

For installation in fire-rated wall assemblies requiring a fire damper, the Aldes CSR3-S-F provides a UL 555 1.5 hour dynamic fire damper as part of a cartridge to be installed with the integral CAR3 and grille as a complete assembly.
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Airflow Range (cfm)

Nominal Duct Width (in)

Nominal Duct Height (in)

Item #

Airflow Range

Nominal Duct Width

Nominal Duct Height

N/A 15 to 85 cfm N/A 10 in N/A 5 in
N/A 15 to 85 cfm N/A 10 in N/A 6 in
N/A 15 to 85 cfm N/A 10 in N/A 8 in
N/A 15 to 85 cfm N/A 10 in N/A 10 in
N/A 15 to 85 cfm N/A 10 in N/A 12 in
N/A 15 to 85 cfm N/A 12 in N/A 4 in
N/A 15 to 85 cfm N/A 12 in N/A 5 in
N/A 15 to 85 cfm N/A 12 in N/A 6 in
N/A 15 to 85 cfm N/A 12 in N/A 8 in
N/A 15 to 85 cfm N/A 12 in N/A 10 in
N/A 15 to 85 cfm N/A 12 in N/A 12 in
N/A 35 to 180 cfm N/A 5 in N/A 5 in
N/A 35 to 180 cfm N/A 5 in N/A 6 in
N/A 35 to 180 cfm N/A 5 in N/A 8 in
N/A 35 to 180 cfm N/A 5 in N/A 10 in
N/A 35 to 180 cfm N/A 5 in N/A 12 in
N/A 35 to 180 cfm N/A 6 in N/A 5 in
N/A 35 to 180 cfm N/A 6 in N/A 6 in
N/A 35 to 180 cfm N/A 6 in N/A 8 in
N/A 35 to 180 cfm N/A 6 in N/A 10 in
N/A 35 to 180 cfm N/A 6 in N/A 12 in
N/A 35 to 180 cfm N/A 8 in N/A 5 in
N/A 35 to 180 cfm N/A 8 in N/A 6 in
N/A 35 to 180 cfm N/A 8 in N/A 8 in
N/A 35 to 180 cfm N/A 8 in N/A 10 in
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