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qv
Room attenuation
Dr
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CRA

CRA-3010
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  • Product information
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MISSING
Perforated diffuser - rectangular

Comdif CRA is a rectangular perforated displacement diffuser for installation against a wall or column. CRA has a rectangular connection and therefore has a limited depth, making it ideal for installation in premises where a discrete appearance is required. Behind the perforated front plate, CRA is equipped with individually adjustable nozzles, making it possible to alter the geometry of the near zone. The diffuser can be turned and has a rectangular duct connection, so the diffuser can be connected at the top or bottom. The connection duct CRAZ with a circular connection is available as an accessory. The diffuser is suitable for the supply of large volumes of moderately cooled air.

  • The diffuser is suitable for the supply of large volumes of air.
  • The geometry of the near zone can be adjusted using adjustable nozzles
  • Duct connections and plinths can be supplied as accessories
Face velocity
v
m/s
Total pressure loss
Δpt
Pa
Sound power level
LwA
dB(A)
Sound pressure level
LpA
dB(A)
Near zone, A
a0.2
m
Near zone, B
b0.2
m
  • Pressure and sound power diagram
    MISSING
    Hz 63 125 250 500 1K 2K 4K 8K
    Coct 9 -1 5 -1 -11 -17 -30 -41
    ΔL 11 7 6 4 2 2 1 2
Logo CRA

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