Type AIRNAMIC

For the most demanding requirements of technical function, comfort, and design

Circular and square ceiling swirl diffusers with fixed air control blades, for high volume flow rates at low sound power levels and low differential pressure due to innovative polymer technology

  • Nominal sizes 300, 400, 600, 625
  • Volume flow rate range 13 – 385 l/s or 47 – 1386 m³/h
  • Plastic diffuser face with overlapping, three-dimensionally profiled blades, for the most efficient swirl and high induction
  • For supply and extract air
  • For variable and constant volume flows
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Diffuser face with gently sloped, flat border – only 3 mm high
  • Plenum box with acoustically optimised and lockable damper blade
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours

AIRNAMIC-R/400L 00131093_0


  • Application
  • Description

Application

  • Type AIRNAMIC ceiling swirl diffusers are used as supply air or extract air diffusers for comfort zones
  • Attractive design element for building owners and architects with demanding aesthetic requirements
  • Horizontal swirling supply air discharge for mixed flow ventilation
  • The efficient swirl creates high induction levels, thereby rapidly reducing the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –12 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For all types of ceiling systems
  • With an extended border also suitable for freely suspended installation (supply air variant)

Special characteristics

  • Plastic diffuser face with overlapping, three-dimensionally profiled blades, for the most efficient swirl and high induction
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Diffuser face with gently sloped, flat border – only 3 mm high
  • Plenum box for supply air, with an optimised equalising element that ensures a uniform airflow through the diffuser face

Nominal sizes

  • Q: 300L, 300H, 600, 625
  • R: 400L, 400H, 600

Variants

  • AIRNAMIC-Q: Square diffuser face
  • AIRNAMIC-R: Circular diffuser face
  • AIRNAMIC-*-Z: Supply air
  • AIRNAMIC-*-A: Extract air


Connection

  • Horizontal duct connection

Parts and characteristics

  • Square or circular diffuser face, made of plastic, with three-dimensionally profiled blades
  • Damper blade for volume flow rate balancing, can be set in 15° intervals between 0 and 90°
  • Spigot with double lip seal
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with double lip seal

Materials and surfaces

  • Diffuser face, spigot and damper blade made of ABS plastic, UL 94, V-0, flame retardant
  • Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Equalising element made of synthetic fibre
  • Double lip seal made of rubber
  • Diffuser face coated RAL 9010, pure white
  • P1: Coated, RAL CLASSIC colour

Standards and guidelines

  • Sound power level of the air-regenerated noise measured according to EN ISO 5135

Maintenance

  • Maintenance-free as construction and materials are not subject to wear
  • Inspection and cleaning to VDI 6022

Teknisk information

Function, Technical data, Quick sizing, Specification text, Order code

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code

Functional description

Ceiling swirl diffusers in air conditioning systems create a swirl to supply air to rooms. The resulting airflow induces high levels of room air, thereby rapidly reducing the airflow velocity and the temperature difference between supply air and room air. Ceiling swirl diffusers allow for large volume flow rates. The result is a mixed flow ventilation in comfort zones, with good overall room ventilation, creating only very little turbulence in the occupied zone.

Type AIRNAMIC ceiling swirl diffusers have fixed blades with three-dimensionally profiled contours. This allows for high volume flow rates and low sound power levels. The supply air to room air temperature difference may range from –12 to +10 K.

A damper blade simplifies volume flow rate balancing for commissioning.

To give rooms an aesthetic, uniform look, Type AIRNAMIC diffusers may also be used for extract air. There is then no equalising element.

Nominal sizes

300, 400, 600, 625 mm

Minimum volume flow rate, with ΔtZ = –6 K 

13 – 76 l/s or 47 – 274 m³/h

Maximum volume flow rate, with LWA ≅ 50 dB(A)

95 – 385 l/s or 342 – 1386 m³/h

Supply air to room air temperature difference

–12 to +10 K


Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.

The minimum volume flow rates apply to a supply air to room air temperature difference of –6 K.

The maximum volume flow rates apply to a sound power level of approx. 50 dB (A) with damper blade position 0°.

Exact values for all parameters can be determined with our Easy Product Finder design programme.

AIRNAMIC-Q-Z (supply air), sound power level and total differential pressure

Nominal size V Damper blade position
Nominal size V 45° 90°
Nominal size V Δpt LWA Δpt LWA Δpt LWA
Nominal size l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A)

300L

13

47

1

<15

2

<15

2

<15

300L

40

144

9

24

16

24

23

24

300L

68

245

27

37

45

38

65

39

300L

95

342

53

50

89

51

127

51

300H

16

58

1

<15

2

<15

4

<15

300H

55

198

15

22

27

24

41

27

300H

90

324

41

37

72

39

111

42

300H

130

468

86

50

150

51

232

54

600, 625

76

274

3

<15

7

<15

13

18

600, 625

180

648

18

24

41

31

72

41

600, 625

285

1026

44

40

102

47

180

58

600, 625

385

1386

80

50

185

59

329

71


AIRNAMIC-R-Z (supply air), sound power level and total differential pressure

Nominal size V Damper blade position
Nominal size V 45° 90°
Nominal size V Δpt LWA Δpt LWA Δpt LWA
Nominal size l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A)

400L

17

61

1

<15

1

<15

2

<15

400L

55

198

9

25

14

25

20

29

400L

95

342

27

38

41

39

59

41

400L

135

486

55

50

82

51

118

52

400H

24

86

1

<15

2

<15

4

<15

400H

75

270

14

26

21

28

34

28

400H

130

468

41

40

64

40

101

44

400H

180

648

79

50

123

50

193

54

600, 625

57

205

2

<15

4

<15

8

<15

600, 625

160

576

17

27

35

28

60

36

600, 625

265

954

47

40

97

45

163

54

600, 625

365

1314

89

50

185

58

310

66


Ceiling swirl diffusers with square or circular diffuser face, for comfort zones with particularly demanding requirements of aesthetics and design. Supply air and extract air variants. Excellent aerodynamic and acoustic function due to air control blades with optimised aerofoil contours, for horizontal swirling air discharge, creating high levels of induction. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face and a plenum box, equalising element (only supply air variants), side entry spigot, cross bar, and suspension holes or suspension lugs.

The diffuser face is fixed to the cross bar with a central screw, concealed by a decorative cap.

Spigot suitable for ducts to EN 1506 or EN 13180.

Sound power level of the air-regenerated noise measured according to EN ISO 5135.

Special characteristics

  • Plastic diffuser face with overlapping, three-dimensionally profiled blades, for the most efficient swirl and high induction
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Diffuser face with gently sloped, flat border – only 3 mm high
  • Plenum box for supply air, with an optimised equalising element that ensures a uniform airflow through the diffuser face

Materials and surfaces

  • Diffuser face, spigot and damper blade made of ABS plastic, UL 94, V-0, flame retardant
  • Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Equalising element made of synthetic fibre
  • Double lip seal made of rubber
  • Diffuser face coated RAL 9010, pure white
  • P1: Coated, RAL CLASSIC colour

Technical data

  • Nominal sizes: 300, 400, 600, 625 mm
  • Minimum volume flow rate, with ΔtZ = –6 K: 13 – 76 l/s or 47 – 274 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 95 – 385 l/s or 342 – 1386 m³/h
  • Supply air to room air temperature difference: –12 to +10 K

Sizing data

  • V _______________________ [m³/h]
  • Δpt _______________________ [Pa]

Air-regenerated noise

  • LWA _______________________ [dB(A)]

00206621_0

 Type
AIRNAMIC       Swirl diffuser

 Construction style
R       Circular
Q       Square

 System
Z       Supply air
A       Extract air

 

 Nominal size [mm]
       Construction style R
400L
400H
600

       Construction style Q
300L
300H
600
625
       L Low volume flow rate
       H High volume flow rate

 Surface
       No entry: coated RAL 9010, pure white
S1       Coated, specify RAL CLASSIC colour

Order example: AIRNAMIC–R–Z/400H

Construction style

Circular

System

Supply air

Nominal size

400H

Surface

RAL 9010, pure white


 

Variants, Dimensions and weight, Product details

  • Variants
  • Dimensions and weight
  • Product details

AIRNAMIC-Q

Designed for high comfort

Together with renowned designers and architects we have developed ceiling, wall, staircase and floor diffusers and grilles that are not only aesthetic design elements, but also meet demanding ventilation and acoustic requirements.

Variant

  • Ceiling swirl diffuser with square diffuser face
  • With plenum box for horizontal duct connection

Nominal sizes

  • 300L, 300H, 600, 625

Parts and characteristics

  • Square diffuser face
  • Plenum box for horizontal duct connection
  • Square opening to accommodate the diffuser face
  • Optimised equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Damper blade for volume flow rate balancing, can be set in 15° intervals between 0 and 90°
  • Spigot with double lip seal
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with double lip seal

AIRNAMIC-R

Designed for high comfort

Together with renowned designers and architects we have developed ceiling, wall, staircase and floor diffusers and grilles that are not only aesthetic design elements, but also meet demanding ventilation and acoustic requirements.

Variant

  • Ceiling swirl diffuser with circular diffuser face
  • With plenum box for horizontal duct connection

Nominal sizes

  • 400L, 400H, 600

Parts and characteristics

  • Circular diffuser face
  • Plenum box for horizontal duct connection
  • Circular opening to accommodate the diffuser face
  • Optimised equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Damper blade for volume flow rate balancing, can be set in 15° intervals between 0 and 90°
  • Spigot with double lip seal
  • Simple installation of the diffuser face due to central fixing screw with decorative cap

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with double lip seal

AIRNAMIC-Q

Nominal size
□Q1
mm
H1
mm
□Q3
mm
H3
mm
ØD
mm
A
mm
C
mm
Plenum box
m
kg
Q/300L 298 3 290 250 158 139 60 AK-H-Q/300 3.0
Q/300H 298 3 290 250 158 139 60 AK-H-Q/300 3.0
Q/600 598 3 567 345 248 194 60 AK-H-Q/600 8.7
Q/625 623 3 567 345 248 194 60 AK-H-Q/600 8.7

Weights apply to the supply air variant


AIRNAMIC-R

Nominal size
ØD1
mm
H1
mm
ØD3
mm
H3
mm
ØD
mm
A
mm
C
mm
Plenum box
m
kg
R/400L 400 3 364 280 198 151 60 AK-H-R/400 4.0
R/400H 400 3 364 280 198 151 60 AK-H-R/400 4.0
R/600 600 3 575 345 248 194 60 AK-H-R/600 7.5

Weights apply to the supply air variant


Innovation

Type AIRNAMIC swirl diffusers meet the most demanding requirements of technical function, comfort, and design.

The unique design of the air control blades, a specially developed equalising element, and the innovative plenum box result in high volume flow rates, a low sound power level and low differential pressure.

The air control blades have three-dimensionally profiled contours to create an efficient swirl. As a consequence, the air velocities and temperature differences in the occupied zone are very low, and the level of comfort is excellent.

The production of these unusually contoured blades is only possible by the use of high-quality plastics and by applying innovative production technology.

The exceptionally aesthetic air control blades allow for perfect architectural integration of the circular or square swirl diffuser and therefore make for an important design element for building owners and architects.

A spigot with double lip seal provides a low-leakage connection of the plenum box to the ducting, and a lockable damper blade for volume flow rate balancing simplifies commissioning.

AIRNAMIC-Q

Nominal size
□Q1
mm
□Q2
mm
Aeff

Q/300L 298 262 0.0139
Q/300H 298 262 0.0175
Q/600 598 539 0.0616
Q/625 623 539 0.0616


AIRNAMIC-R

Nominal size
ØD1
mm
ØD2
mm
Aeff

R/400L 400 352 0.0186
R/400H 400 352 0.0258
R/600 600 546 0.0504


Installation examples, Installation details, Commissioning, Basic information and nomenclature

  • Installation examples
  • Installation details
  • Commissioning
  • Basic information and nomenclature

Installation and commissioning

  • Preferably for rooms with a clear height up to 4.0 m
  • Flush ceiling installation
  • Freely suspended installation only with an extended border (supply air variant)
  • Horizontal duct connection
  • If necessary, carry out volume flow rate balancing with the damper blade


These are only schematic diagrams to illustrate installation details.

Volume flow rate balancing

When several diffusers are connected to just one volume flow controller, it may be necessary to balance the volume flow rates.

  • The diffuser face can be removed to access the damper blade; the damper blade can then be set in 15° intervals between 0 and 90°

Principal dimensions

ØD [mm]

Outer diameter of the spigot

ØD₁ [mm]

Outer diameter of a circular diffuser face

ØD₂ [mm]

Diameter of a circular diffuser face style

ØD₃ [mm]

Diameter of a circular plenum box

□Q₁ [mm]

Outer diameter of a square diffuser face

□Q₂ [mm]

Dimensions of a square diffuser face style

□Q₃ [mm]

Dimensions of a square plenum box

H₁ [mm]

Distance (height) from the lower edge of the suspended ceiling to the lower edge of the diffuser face

H₂ [mm]

Height of a ceiling diffuser, from the lower edge of the suspended ceiling to the upper edge of the spigot

H₃ [mm]

Height of a ceiling diffuser with plenum box, from the lower edge of the suspended ceiling to the upper edge of the plenum box or of the spigot

A [mm]

Position of the spigot, defined by the distance of the spigot centre line to the lower edge of the suspended ceiling

C [mm]

Length of the spigot

m [kg]

Weight

Nomenclature

LWA [dB(A)]

A-weighted sound power level of air-regenerated noise

V [m³/h] and [l/s]

Volume flow rate

Δtz [K]

Supply air to room air temperature difference, i.e. supply air temperature minus room temperature

Δpt [Pa]

Total differential pressure

Aeff [m²]

Effective air discharge area


All sound power levels are based on 1 pW.

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