Lindab CBA Perforated Diffuser

באַשרייַבונג

Comdif CBA is a semicircular perforated displacement diffuser for installation against/on a wall or column. Behind the perforated front plate, CBA 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 circular duct connection (MF measure), so the diffuser can be connected at the top or bottom. 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 covers, plinths and wall brackets can be supplied as accessories.

וישאַלט

The front plate can be removed from the diffuser, making it possible to clean the nozzles. The visible parts of the diffuser can be wiped with a damp שטאָף.

אָרדערינג עקסample

Order – accessories

Cover:               CBAZ – 0 – size
Plinth:               CBAZ – 2 – size
Wall bracket:     CBAZ – 3 – size

ויסמעסטונג

גרייס

A
[מם]
ØD
[מם]
H
[מם]

וואָג
[קג]

1207

350 125 710 6.50
1607 420 160 710

7.50

2010

500 200 970 13.0
2510 600 250 970

18.0

3115

730 315 1490 35.0
4020 900 400 2010

58.0

5020

1100 500 2010

78.0

אַקסעססאָריעס

Can be supplied with duct cover, plinth and bracket for wall mounting.

Materials and finish

Diffuser:                   Galvanised steel
Nozzles:                    Black plastic
Front plate:               1 mm galvanised steel
Standard finish:         Powder-coated
Standard colour:       RAL 9003 or RAL 9010 – white, gloss 30.

The diffuser is available in other colours. Please contact Lindab’s sales department for further information.

טעכניש דאַטן

The near zone is given at an under-temperature of -3 K to a maximum terminal velocity of 0.20 m/s.
Conversion to other terminal velocities – see table 1, correction of the near zone for -3 K and -6 K respectively

Sound effect level

Sound effect level LW [dB] = LWA + קok

גרייס

Centre frequency Hz

63

125 250 500  1K 2K

4K

8K

1207

8 -3 0 1 -8 -קסנומקס

-קסנומקס

-קסנומקס

1607

10 -3 3 0 -8 -קסנומקס -קסנומקס -קסנומקס
2010 15 -2 3 0 -9 -קסנומקס

-קסנומקס

-קסנומקס

2510

10 -1 4 -1 -9 -קסנומקס -קסנומקס -קסנומקס
3115 11 1 4 -1 -8 -קסנומקס

-קסנומקס

-קסנומקס

4020

13 3 4 -1 -9 -קסנומקס -קסנומקס -קסנומקס
5020 7 2 2 0 -6 -קסנומקס

-קסנומקס

-קסנומקס

Sound attenuation

Sound attenuation ΔL [dB] including end reflection.

גרייס

Centre frequency Hz

גרייס

125 250 500 1K 2K 4K 250
1207 19 14 5 3 2 1 2

1

1607

16 12 4 1 2 1 2 2
2010 12 8 4 2 3 2 2

2

2510

12 8 5 2 1 1 1 1
3115 11 8 3 2 1 1 2

2

4020

9 6 1 1 1 1 1 1
5020 7 5 0 1 1 1 1

2

Nearzone

Table 1 Correction of the near zone (a קסנומקס, b 0.2 )

Under- temperature Ti - הr

Maximum velocity m/s Mean velocity m/s

Correction factor

-ק3 0.20 0.10 1.00
0.25 0.12 0.80
0.30 0.15 0.70
0.35 0.17 0.60
0.40 0.20 0.50
-קסנומקסק 0.20 0.10 1.20
0.25 0.12 1.00
0.30 0.15 0.80
0.35 0.17 0.70
0.40 0.20 0.60

Lindab reserves the right to make changes without prior notice
2020-10-06

דאקומענטן / רעסאָורסעס

Lindab CBA Perforated Diffuser [pdf] אינסטרוקציעס
CBA Perforated Diffuser, CBA, Perforated Diffuser

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