Type TDV-SilentAIR

With very low sound power level for comfort zones and individually manually adjustable air control blades

Circular and square ceiling swirl diffusers

  • Nominal sizes 300, 400, 500, 600, 625
  • Volume flow rate range 11 – 315 l/s or 40 – 1134 m³/h
  • Diffuser face made of galvanised sheet steel, powder-coated
  • 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
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Air control blades can be adjusted individually for adjusting the air pattern
  • Ideal for comfort zones


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours, air control blades in black or white
  • Horizontal or vertical duct connection
  • Plenum box with cord-operated damper blade and pressure tap

TDV-SA-Q-Z/600 00132911_0


  • Application
  • Description

Application

  • Type TDV-SilentAIR 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)
  • Individually adjustable air control blades to meet individual requirements
  • 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

  • Very low sound power level, ideal for comfort zones
  • Individually manually adjustable air control blades
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Black or white air control blades

Nominal sizes

  • 300, 400, 500, 600, 625

Variants

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


Connection

  • H: Horizontal duct connection
  • V: Vertical duct connection

Parts and characteristics

  • Circular or square diffuser face
  • Diffuser face with individually manually adjustable air control blades
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)

Attachments

  • M: Damper blade for volume flow rate balancing
  • MN: Pressure tap and cord-operated damper blade for volume flow rate balancing with the diffuser face in place

Accessories

  • Lip seal

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

Materials and surfaces

  • Diffuser face made of galvanised sheet steel
  • V, H: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Air control blades made of plastic, UL 94, V-0, flame retardant
  • Lip seal made of rubber
  • Exposed diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control blades for supply air similar to RAL 9005, black; extract air variant without air control blades
  • Q11: Air control blades for extract air similar to RAL 9005, black
  • Q21: Air control blades for supply air and extract air similar to RAL 9010, white

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

Technical 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 TDV ceiling swirl diffusers have adjustable air control blades. The air pattern can be adjusted to meet different local requirements. Horizontal air discharge is one-way, two-way or omni directional. Vertical air discharge is possible but only for heating. The supply air to room air temperature difference may range from –12 to +10 K.

A damper blade (optional) simplifies volume flow rate balancing for commissioning. Pressure tap and cord-operated damper blade (optional) allow for volume flow rate balancing with the diffuser face in place.

To give rooms an aesthetic, uniform look, Type TDV diffusers may also be used for extract air. Air control blades are not required for extract air applications.

Nominal sizes

300, 400, 500, 600, 625 mm

Minimum volume flow rate, with ΔtZ = –6 K 

11 – 47 l/s or 40 – 169 m³/h

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

95 – 315 l/s or 342 – 1134 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.

TDV-SA-Q-Z-H (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)

300

11

40

1

<15

1

<15

2

<15

300

40

144

11

25

14

27

32

25

300

65

234

28

37

37

37

83

38

300

95

342

60

50

79

48

179

52

400

20

72

1

<15

1

<15

3

<15

400

60

216

10

26

12

18

28

27

400

100

360

26

39

35

36

79

39

400

140

504

52

50

68

49

154

49

500

30

108

1

<15

2

<15

6

<15

500

80

288

11

22

16

21

46

26

500

135

486

30

38

46

38

130

43

500

190

684

59

50

91

51

257

55

600, 625

47

169

2

<15

2

<15

6

<15

600, 625

125

450

12

22

15

22

44

27

600, 625

200

720

30

38

39

37

112

43

600, 625

275

990

57

50

74

49

212

55


TDV-SA-R-Z-H (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)

300

11

40

1

<15

1

<15

2

<15

300

40

144

10

25

14

24

32

23

300

70

252

31

35

43

36

97

38

300

111

398

78

50

108

50

243

54

400

20

72

1

<15

1

<15

3

<15

400

65

234

11

25

14

25

34

25

400

115

414

34

39

45

39

105

41

400

155

558

62

50

82

48

191

51

500

30

108

1

<15

2

<15

6

<15

500

90

324

13

22

20

23

56

28

500

155

558

39

38

59

40

165

45

500

215

774

75

50

114

52

318

57

600, 625

47

169

2

<15

2

<15

6

<15

600, 625

130

468

13

21

19

22

47

30

600, 625

215

774

35

37

51

38

130

45

600, 625

295

1062

66

50

96

50

244

57


TDV-SA-*-Z-V (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)

300

11

40

1

<15

1

<15

2

<15

300

30

108

6

17

8

19

17

18

300

65

234

29

37

36

38

82

38

300

95

342

63

50

77

51

174

52

400

20

72

1

<15

1

<15

3

<15

400

60

216

9

21

12

23

29

22

400

110

396

31

39

40

39

96

42

400

150

540

58

50

73

51

179

54

500

30

108

1

<15

2

<15

6

<15

500

85

306

11

20

18

23

49

29

500

140

504

30

38

49

42

133

46

500

195

702

59

50

94

56

258

58

600, 625

47

169

2

<15

3

<15

7

<15

600, 625

120

432

12

23

17

25

42

33

600, 625

190

684

29

38

42

42

106

48

600, 625

260

936

55

50

79

55

198

60


Ceiling swirl diffusers with square or circular diffuser face. Supply air and extract air variants for comfort zones. Diffuser face with individually manually adjustable air control blades for horizontal swirling supply air discharge creating high induction levels. For installation into all types of suspended ceilings.

Ready-to-install component which consists of the diffuser face with radially arranged, individually adjustable black or white air control blades, and of a plenum box, equalising element (only supply air variants), side entry or top entry spigot, 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

  • Very low sound power level, ideal for comfort zones
  • Individually manually adjustable air control blades
  • For all types of ceiling systems, and with an extended border also suitable for freely suspended installation
  • Black or white air control blades

Materials and surfaces

  • Diffuser face made of galvanised sheet steel
  • V, H: Plenum box and cross bar made of galvanised sheet steel
  • X: Plenum box made of plastic and galvanised sheet steel
  • Air control blades made of plastic, UL 94, V-0, flame retardant
  • Lip seal made of rubber
  • Exposed diffuser face powder-coated RAL 9010, pure white
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control blades for supply air similar to RAL 9005, black; extract air variant without air control blades
  • Q11: Air control blades for extract air similar to RAL 9005, black
  • Q21: Air control blades for supply air and extract air similar to RAL 9010, white

Technical data

  • Nominal sizes: 300, 400, 500, 600, 625 mm
  • Minimum volume flow rate, with ΔtZ = –6 K: 11 – 47 l/s or 40 – 169 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 95 – 315 l/s or 342 – 1134 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)]

00133892_0

 Type
TDV-SA       Swirl diffuser

 Construction style
R       Circular
Q       Square

 System
Z       Supply air
A       Extract air

 Connection
H       Horizontal
V       Vertical

 Damper blade for volume flow rate balancing
       No entry: without damper blade
M       With damper blade
MN       With cords and pressure tap (only for connection H)

 

 Accessories
       No entry: without accessories
L       With lip seal

 Nominal size [mm]
300
400
500
600
625

 Colour of air control blades
No entry: supply air – black air control blades, extract air – no air control blades
Q11       Extract air – black air control blades
Q21       Supply air – white air control blades
       Extract air – white air control blades

 Exposed surface
       No entry: powder-coated RAL 9010, pure white
P1       Powder-coated, specify RAL CLASSIC colour

       Gloss level
       RAL 9010 50 %
       RAL 9006 30 %
       All other RAL colours 70 %

Order example: TDV-SA–Q–Z–H–MN–L/600/P1–RAL 9016

Construction style

Square

System

Supply air

Connection

Horizontal

Damper blade for volume flow rate balancing

With cords and pressure tap

Accessories

Lip seal

Nominal size

600

Colour of air control blades

Black

Exposed surface

RAL 9016, traffic white, gloss level 70 %


 

Variants, Dimensions and weight, Product details

  • Variants
  • Dimensions and weight
  • Product details

TDV-SA-Q-*-H

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

  • 300, 400, 500, 600, 625

Parts and characteristics

  • Square diffuser face
  • Plenum box for horizontal duct connection
  • Square opening to accommodate the diffuser face
  • Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)
  • Pressure tap and cord-operated damper blade for volume flow rate balancing (optional)
  • Lip seal (optional)

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

TDV-SA-Q-*-V

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 vertical duct connection

Nominal sizes

  • 300, 400, 500, 600, 625

Parts and characteristics

  • Square diffuser face
  • Plenum box for vertical duct connection
  • Circular opening to accommodate the diffuser face
  • Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)
  • Lip seal (optional)

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

TDV-SA-R-*-H

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

  • 300, 400, 500, 600, 625

Parts and characteristics

  • Circular diffuser face
  • Plenum box for horizontal duct connection
  • Circular opening to accommodate the diffuser face
  • Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)
  • Pressure tap and cord-operated damper blade for volume flow rate balancing (optional)
  • Lip seal (optional)

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

TDV-SA-R-*-V

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 vertical duct connection

Nominal sizes

  • 300, 400, 500, 600, 625

Parts and characteristics

  • Circular diffuser face
  • Plenum box for vertical duct connection
  • Circular opening to accommodate the diffuser face
  • Equalising element that ensures a uniform airflow through the diffuser face (supply air variant)
  • Simple installation of the diffuser face due to central fixing screw with decorative cap
  • Damper blade for volume flow rate balancing (optional)
  • Lip seal (optional)

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal (if accessory lip seal has been ordered)

TDV-SA-Q-*-H

Nominal size
□Q1
mm
H1
mm
□Q3
mm
H3
mm
ØD
mm
A
mm
C
mm
Plenum box
m
kg
300 298 8 290 250 158 139 50 AK-Uni-001 3.7
400 398 8 372 295 198 164 50 AK-Uni-002 5.7
500 498 8 476 295 198 164 50 AK-Uni-003 7.8
600 598 8 567 345 248 199 48 AK-Uni-004 10.9
625 623 8 567 345 248 199 48 AK-Uni-004 11.5

Weights apply to the supply air variant


TDV-SA-Q-*-V

Nominal size
□Q1
mm
H1
mm
ØD3
mm
H3
mm
ØD
mm
C
mm
m
kg
300 298 8 275 200 158 50 2.7
400 398 8 364 200 198 50 4.2
500 498 8 462 200 198 50 6.0
600 598 8 559 200 248 48 8.2
625 623 8 559 200 248 48 8.4

Weights apply to the supply air variant


TDV-SA-R-*-H

Nominal size
ØD1
mm
H1
mm
□Q3
mm
H3
mm
ØD4
mm
H4
mm
ØD
mm
A
mm
C
mm
Plenum box
m
kg
300 300 8 290 285 278 250 158 174 50 AK-Uni-013 4.0
400 400 8 372 330 362 295 198 199 50 AK-Uni-014 6.1
500 500 8 476 330 460 295 198 199 50 AK-Uni-015 8.3
600 600 8 567 380 557 345 248 234 48 AK-Uni-016 11.2
625 625 8 567 380 557 345 248 234 48 AK-Uni-016 11.8

Weights apply to the supply air variant


TDV-SA-R-*-V

Nominal size
ØD1
mm
H1
mm
ØD3
mm
H3
mm
ØD
mm
C
mm
m
kg
300 300 8 275 200 158 50 2.6
400 400 8 364 200 198 50 4.0
500 500 8 462 200 198 50 5.7
600 600 8 559 200 248 48 7.4
625 625 8 559 200 248 48 7.6

Weights apply to the supply air variant


TDV-Q

Nominal size
□Q1
mm
ØD2
mm
Aeff

300 298 254 0.0120
400 398 336 0.0210
500 498 440 0.0310
600 598 530 0.0440
625 623 530 0.0440


TDV-R

Nominal size
ØD1
mm
ØD2
mm
Aeff

300 300 254 0.0120
400 400 336 0.0210
500 500 440 0.0310
600 600 530 0.0440
625 625 530 0.0440


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 or vertical 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.

  • Ceiling diffusers with universal plenum box and damper blade (variant -M): The diffuser face can be removed to access the damper blade; the damper blade can then be set to any position between 0 and 90°
  • Ceiling diffusers with universal plenum box, damper blade and pressure tap (variant -MN): The diffuser face need not be removed since the damper blade can be set with two cords (white and green).

Volume flow rate measurement

Ceiling diffusers with universal plenum box, damper blade and pressure tap (variant -MN) allow for volume flow rate balancing even with the diffuser face in place.

  • Connect the measuring tube to the digital manometer
  • Read the effective pressure
  • Read the volume flow rate off the characteristic or calculate it
  • If necessary, adjust the damper blade position with the cords


A characteristic is included with each AK-Uni plenum box.

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

Definitionen

LWA [dB(A)]

Schallleistungspegel des Strömungsgeräusches, A-bewertet

V [m³/h] und [l/s]

Volumenstrom

Δtz [K]

Zulufttemperaturdifferenz, Zulufttemperatur minus Raumtemperatur

Δpt [Pa]

Gesamtdruckdifferenz


Alle Schallleistungspegel basieren auf 1 pW.

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Thank you for your message!

Visual contact Visual contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265