Type VSD35

Numerous variants for many different installation situations

Slot diffusers with 35 mm diffuser face (nominal width) and adjustable air control elements

  • Nominal length from 600 to 1950 mm, 1 to 4 slots
  • Volume flow rate range 15 – 135 (l/s)/m or 54 – 486 (m³/h)/m
  • Diffuser face made of extruded aluminium sections
  • For variable and constant volume flows
  • Suitable for continuous linear arrangement
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Individually adjustable air control elements to meet individual local requirements


Optional equipment and accessories

  • Exposed diffuser face available in RAL CLASSIC colours
  • Diffuser face with extended border
  • Damper blade for volume flow rate balancing, can be adjusted through the diffuser face
  • Concealed screw fixing that simplifies installation of the diffuser after the ceiling has been completed
  • Symmetric and asymmetric plenum boxes, with or without lining
  • End plates, end angles, corner sections

VSD35-1-AK 00134729_0

Nominal length up to 1500 mm: one spigot

  • Application
  • Description

Application

  • Type VSD35 slot diffusers are used as supply air or extract air devices in comfort zones
  • They blend in inconspicuously with continuous grid ceilings and plasterboard ceilings
  • Air discharge is one-way or alternating horizontal, or alternating angled; turbulent flow (mixed flow ventilation)
  • High induction results in a rapid reduction of the temperature difference and airflow velocity (supply air variant)
  • For variable and constant volume flows
  • For supply air to room air temperature differences from –10 to +10 K
  • For room heights up to 4 m (lower edge of suspended ceiling)
  • For suspended ceilings; suitable for restricted ceiling voids due to the low overall height of the plenum box
  • Suitable for continuous linear arrangement

Special characteristics

  • Individually adjustable air control elements to meet individual local requirements
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Nominal sizes

  • LN: 600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm
  • Diffuser face available in intermediate sizes from 300 to 2550 mm, in increments of 1 mm

Variants

  • VSD35-*: 1, 2, 3 or 4 slots
  • VSD35-*-F: Diffuser face only
  • VSD35-*-E: Corner section
  • VSD35-...: Diffuser face without extended border
  • VSD35-.../B00: Diffuser face with extended border
  • VSD35-...: Black air control elements
  • VSD35-.../WW: White air control elements


Plenum box and diffuser face fixing

  • AK: Plenum box and clamp fixing
  • DK: Plenum box with lining and clamp fixing
  • AS: Plenum box and concealed screw fixing
  • DS: Plenum box with lining and concealed screw fixing
  • AA: Asymmetric plenum box and clamp fixing

Parts and characteristics

  • Diffuser face with individually adjustable air control elements
  • Plenum box for horizontal duct connection
  • Concealed screw fixing (facilitates installation of the diffuser face) or clamp fixing
  • Connecting pins and alignment plates to connect and align slot diffusers for a continuous linear arrangement

Attachments

  • M: Damper blade for volume flow rate balancing
  • C1, C2: Two end plates
  • C5, C6: Two end angles

Accessories

  • Lip seal

Useful additions

  • EP: Two end plates
  • EW: Two end angles
  • To be ordered separately for continuous linear runs

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 from extruded aluminium sections
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Plenum box made of galvanised sheet steel
  • End plates and end angles made of aluminium
  • Lip seal made of rubber
  • Lining is mineral wool
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • WW: Air control elements similar to RAL 9010, white


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

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

Slot diffusers direct the air from air conditioning systems into the room, either horizontally or at an angle. 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. 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 VSD35 slot diffusers have adjustable air control elements. The air pattern can be adjusted to meet different local requirements. Air discharge is one-way or alternating horizontal. Heating mode with angled air discharge is also possible. The supply air to room air temperature difference may range from –10 to +10 K.

A damper blade (optional) simplifies volume flow rate balancing for commissioning.

To give rooms an aesthetic, uniform look, Type VSD35 diffusers may also be used for extract air.

Nominal length

600, 750, 900, 1050, 1200, 1350, 1500, 1650, 1800, 1950 mm

Number of slots

1, 2, 3, 4

Neck extension

0, 30, 55, 80, 104, 105, 129 mm

Minimum volume flow rate

15 – 50 (l/s)/m or 54 – 180 (m³/h)/m

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

45 – 135 (l/s)/m or 162 – 486 (m³/h)/m

Supply air to room air temperature difference

–10 to +10 K


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

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.

Sizing example

Given data

V = 60 l/s (216 m3/h)

Slot diffuser for ceiling installation

Maximum sound power level 40 dB(A) with damper blade position 45°

Alternating angled air discharge

Quick sizing

Type VSD35

Nominal sizes: VSD35-1/1950×123, VSD35-2/1200×138, VSD35-1/1500×123, VSD35-3/600×158, VSD35-3/750×138

Selected: VSD35-2/1200×138

VSD35-1, supply air, alternating horizontal air discharge, sound power level and total differential pressure

Nominal length V Damper blade position
Nominal length V 45° 90°
Nominal length V D = 98 D = 123 D = 98 D = 123 D = 98 D = 123
Nominal length V Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA
Nominal length l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A)

600

7

25

4

<15

4

<15

5

<15

4

<15

8

<15

5

<15

600

15

54

17

27

15

22

23

27

18

23

35

27

23

23

600

20

72

30

35

27

31

41

35

31

31

62

36

40

32

600

30

108

66

47

60

44

91

48

70

44

139

49

90

44

750

10

36

5

<15

5

<15

8

<15

6

<15

14

<15

8

<15

750

20

72

21

31

18

27

32

32

22

27

53

32

31

28

750

25

90

32

38

28

34

49

38

35

34

83

39

48

34

750

35

126

63

48

55

44

96

49

68

44

162

50

94

45

900

11

40

5

<15

4

<15

9

<15

6

<15

15

<15

8

<15

900

20

72

16

28

13

24

27

29

18

24

48

30

26

25

900

30

108

35

40

29

36

60

41

39

36

108

42

59

37

900

40

144

63

49

52

45

106

50

69

45

192

51

104

46

1050

15

54

7

19

6

<15

14

19

8

15

26

19

13

15

1050

25

90

20

32

16

28

37

33

23

28

71

34

36

29

1050

30

108

29

37

23

33

53

38

33

34

101

39

52

34

1050

45

162

65

50

51

45

120

51

73

46

228

52

116

47

1200

15

54

6

17

5

<15

13

17

7

<15

25

18

12

<15

1200

30

108

25

35

18

31

49

36

28

31

97

37

48

32

1200

40

144

43

44

33

39

87

45

50

40

172

46

84

41

1200

50

180

68

50

51

46

136

52

78

47

269

53

132

48

1350

20

72

10

23

7

18

21

23

11

19

42

24

20

19

1350

30

108

22

33

16

29

46

34

25

30

94

35

45

30

1350

40

144

38

42

27

37

82

43

45

38

167

44

79

39

1350

50

180

60

48

42

44

128

50

70

45

261

51

124

46

1500

20

72

9

21

6

<15

20

22

11

17

41

22

19

18

1500

30

108

20

32

13

27

44

33

23

28

92

34

43

29

1500

40

144

35

40

24

36

78

41

41

36

163

43

76

37

1500

55

198

65

49

44

45

148

51

78

46

309

53

143

47

1650

20

72

5

17

4

<15

8

17

6

<15

14

17

8

<15

1650

45

162

25

38

21

34

40

39

27

35

70

40

39

35

1650

50

180

31

41

26

37

50

42

34

38

86

43

48

38

1650

70

252

60

52

51

48

97

53

66

48

169

54

95

49

1800

25

90

7

21

6

17

12

21

8

17

21

22

11

18

1800

40

144

18

33

15

29

30

34

19

30

53

35

29

30

1800

60

216

39

45

32

41

66

46

43

42

119

47

64

42

1800

70

252

53

50

44

46

90

51

59

46

162

52

88

47

1950

25

90

6

20

5

16

11

20

7

16

20

21

11

17

1950

40

144

16

32

13

28

28

33

18

28

51

34

27

29

1950

50

180

24

39

20

34

43

39

27

35

80

40

42

36

1950

70

252

47

49

38

44

84

50

53

45

156

51

82

46


VSD35-2, supply air, alternating horizontal air discharge, sound power level and total differential pressure

Nominal length V Damper blade position
Nominal length V 45° 90°
Nominal length V D = 123 D = 138 D = 123 D = 138 D = 123 D = 138
Nominal length V Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA
Nominal length l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A)

600

15

54

5

<15

4

<15

7

<15

6

<15

12

<15

9

<15

600

30

108

18

31

17

29

28

31

23

29

48

32

35

30

600

33

120

23

34

21

32

35

35

29

32

59

35

44

33

600

55

198

61

49

56

47

94

50

77

48

159

51

118

49

750

20

72

6

17

5

15

11

17

8

15

19

18

14

16

750

35

126

18

32

16

30

32

32

25

30

58

33

41

31

750

50

180

37

42

32

40

64

43

50

41

118

44

84

42

750

65

234

62

50

55

48

108

51

84

49

199

53

141

50

900

25

90

8

20

6

18

14

21

11

18

28

21

19

19

900

40

144

19

33

16

30

36

33

27

31

71

34

49

32

900

55

198

35

42

30

40

68

43

51

40

133

44

92

42

900

70

252

57

49

48

47

111

50

82

48

216

52

149

49

1050

25

90

6

18

5

16

13

19

10

17

27

19

18

17

1050

45

162

20

34

16

31

42

35

31

32

86

36

58

33

1050

60

216

35

42

29

40

75

43

54

41

152

44

103

42

1050

75

270

55

49

45

46

117

50

84

47

237

52

160

49

1200

30

108

8

21

6

19

18

22

13

19

37

22

25

20

1200

50

180

22

35

17

32

49

36

35

33

103

37

69

34

1200

70

252

42

44

34

42

96

46

68

43

201

47

134

44

1200

85

306

62

50

49

48

141

52

100

49

296

54

197

51

1350

35

126

10

23

8

21

23

24

16

22

50

25

33

22

1350

55

198

24

36

18

33

57

37

39

34

122

38

80

35

1350

75

270

44

44

34

42

105

46

73

43

226

48

149

45

1350

90

324

62

50

49

48

152

52

105

49

326

54

215

51

1500

35

126

9

22

7

20

23

23

15

20

49

23

32

21

1500

55

198

22

34

17

32

55

35

38

33

120

37

79

34

1500

75

270

40

43

31

40

102

44

70

42

223

46

146

43

1500

95

342

64

50

49

47

164

52

112

49

357

54

234

51

1650

40

144

6

21

5

19

11

21

8

19

20

21

14

19

1650

65

234

15

33

13

31

28

34

21

32

53

35

37

33

1650

90

324

29

43

25

41

53

44

41

41

101

45

71

42

1650

115

414

47

50

41

48

87

51

66

49

165

53

115

50

1800

45

162

7

22

6

20

13

23

10

21

25

24

17

21

1800

70

252

16

34

14

32

31

35

23

33

60

36

41

34

1800

95

342

29

43

25

41

56

44

42

42

110

45

76

43

1800

120

432

46

50

39

48

89

51

67

49

175

53

120

50

1950

45

162

6

21

5

19

12

22

9

20

24

22

17

20

1950

70

252

15

33

12

31

29

34

22

32

58

35

40

32

1950

95

342

26

42

22

39

54

43

39

40

107

44

73

41

1950

125

450

45

50

38

48

93

51

68

49

185

53

126

50


VSD35-3, supply air, alternating horizontal air discharge, sound power level and total differential pressure

Nominal length V Damper blade position
Nominal length V 45° 90°
Nominal length V D = 138 D = 158 D = 138 D = 158 D = 138 D = 158
Nominal length V Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA
Nominal length l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A)

600

25

90

6

18

6

16

11

18

8

16

19

19

13

16

600

40

144

16

30

14

28

27

31

21

28

49

32

33

29

600

60

216

36

42

31

40

61

43

46

40

109

44

74

41

600

75

270

55

49

49

47

95

50

71

47

171

51

116

48

750

30

108

7

20

6

17

13

20

9

18

25

21

17

18

750

50

180

19

33

16

31

36

34

26

31

70

35

45

32

750

70

252

36

43

30

40

70

44

50

41

137

46

89

42

750

85

306

53

49

44

46

103

50

74

47

201

52

131

49

900

35

126

8

21

6

19

16

22

11

19

33

22

21

20

900

55

198

18

33

15

31

39

34

27

31

80

35

51

32

900

75

270

34

42

27

39

73

43

50

40

149

45

94

42

900

95

342

54

49

43

47

117

51

80

48

239

52

151

49

1050

35

126

7

19

5

16

15

20

10

17

32

20

20

18

1050

55

198

16

31

12

28

37

32

24

29

78

33

48

30

1050

80

288

33

42

26

39

78

43

51

40

165

44

102

41

1050

105

378

57

50

44

47

134

51

88

48

283

53

175

50

1200

45

162

10

24

7

21

24

25

15

22

51

25

31

22

1200

70

252

23

36

17

33

57

37

37

34

123

38

76

35

1200

95

342

42

44

31

42

105

46

68

43

227

48

139

44

1200

115

414

62

50

46

47

153

52

99

49

333

54

203

51

1350

50

180

11

25

8

22

28

26

18

23

62

27

38

24

1350

75

270

24

36

18

33

63

37

40

34

140

39

85

35

1350

100

360

43

44

31

41

112

46

71

43

248

48

150

44

1350

120

432

62

50

44

47

162

52

103

48

357

54

216

50

1500

55

198

12

26

9

23

33

27

21

24

74

28

45

25

1500

80

288

26

36

18

33

70

38

44

35

157

39

95

36

1500

105

378

45

44

31

41

121

46

76

43

271

48

163

44

1500

130

468

68

50

48

47

185

52

116

49

415

55

249

51

1650

60

216

7

23

6

21

14

24

10

22

27

25

17

22

1650

90

324

15

34

12

32

30

35

21

32

61

36

39

33

1650

120

432

26

42

22

40

54

44

38

41

108

45

69

42

1650

155

558

44

50

36

47

90

51

62

49

179

53

114

50

1800

65

234

7

24

6

22

15

25

11

22

31

26

20

23

1800

100

360

17

36

13

33

36

37

25

34

73

38

46

35

1800

130

468

28

43

22

41

60

45

41

42

123

46

78

43

1800

165

594

45

50

36

48

97

52

66

49

199

54

125

51

1950

70

252

8

25

6

23

17

26

12

23

35

27

22

24

1950

100

360

16

35

12

32

35

36

23

33

72

37

45

34

1950

135

486

28

43

22

41

63

44

42

42

131

46

82

43

1950

170

612

44

50

35

47

99

52

67

49

207

54

129

50


VSD35-4, supply air, alternating horizontal air discharge, sound power level and total differential pressure

Nominal length V Damper blade position
Nominal length V 45° 90°
Nominal length V D = 158 D = 198 D = 158 D = 198 D = 158 D = 198
Nominal length V Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA Δpt LWA
Nominal length l/s m³/h Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A) Pa dB(A)

600

30

108

5

17

4

<15

9

17

6

<15

16

17

9

<15

600

55

198

17

32

14

28

29

33

19

29

53

34

29

29

600

75

270

32

41

26

37

54

42

35

38

99

43

53

39

600

100

360

56

50

46

46

96

51

62

47

175

53

94

48

750

40

144

7

21

5

17

13

21

8

17

26

22

13

17

750

65

234

18

34

14

29

35

34

21

30

68

36

34

31

750

90

324

34

43

26

39

67

44

39

40

131

46

65

40

750

110

396

51

49

39

45

100

51

58

46

195

52

97

47

900

45

162

7

21

5

17

15

22

9

18

31

22

15

18

900

70

252

17

33

12

29

37

34

20

29

76

35

36

30

900

100

360

35

43

24

39

75

45

41

40

154

46

73

41

900

125

450

54

50

38

46

117

52

64

47

240

53

114

48

1050

50

180

8

22

5

18

18

22

9

18

38

23

17

19

1050

75

270

17

33

11

28

40

34

21

29

84

35

39

30

1050

105

378

33

42

22

38

78

44

40

39

164

45

75

40

1050

135

486

54

50

36

45

128

51

66

46

272

54

124

48

1200

55

198

8

23

5

19

21

23

10

19

44

24

20

19

1200

85

306

20

34

12

30

49

35

24

30

106

37

47

31

1200

115

414

36

43

22

38

89

44

44

39

193

46

86

41

1200

145

522

56

50

35

45

141

52

70

46

307

54

137

48

1350

65

234

11

25

6

21

28

26

13

22

61

27

27

22

1350

95

342

23

36

13

31

59

37

28

32

130

38

57

33

1350

125

450

39

43

23

39

102

45

49

40

225

47

99

41

1350

155

558

59

50

35

45

156

52

75

47

346

54

151

48

1500

70

252

12

26

7

22

31

27

15

22

70

28

30

23

1500

100

360

23

36

13

31

64

37

30

32

143

39

62

33

1500

135

486

43

44

24

39

116

46

54

41

260

48

112

42

1500

165

594

63

50

36

45

173

52

81

47

388

55

168

49

1650

80

288

7

25

5

21

14

25

8

21

28

26

14

22

1650

120

432

15

35

11

31

31

36

18

32

62

37

30

33

1650

160

576

27

44

20

39

55

45

31

40

111

46

54

41

1650

200

720

42

50

30

46

86

52

49

47

173

54

84

48

1800

85

306

7

25

5

21

15

26

8

22

31

26

15

22

1800

125

450

15

35

11

31

32

36

18

32

66

37

32

33

1800

170

612

28

44

18

39

60

45

31

40

122

47

55

41

1800

210

756

42

50

30

46

91

52

49

47

186

54

88

48

1950

90

324

7

25

5

22

16

26

9

22

34

27

16

23

1950

133

480

16

36

11

32

36

37

19

32

74

38

35

33

1950

177

636

28

44

19

39

62

45

33

40

130

47

60

42

1950

220

792

42

50

29

46

96

52

51

47

201

54

93

49


Slot diffusers with individually manually adjustable air control elements and an aesthetically shaped face section with one to four slots, for one-way horizontal, alternating horizontal or alternating angled air discharge. For supply air or extract air. For installation into suspended ceilings.

Ready-to-install component which consists of the diffuser face with individually adjustable black or white air control elements, and of a plenum box with side entry spigot and suspension lugs.

Clamp fixing or concealed screw fixing

Spigot suitable for circular ducts to EN 1506 or EN 13180.

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

Special characteristics

  • Individually adjustable air control elements to meet individual local requirements
  • High induction results in a rapid reduction of the temperature difference and airflow velocity
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Materials and surfaces

  • Diffuser face made from extruded aluminium sections
  • Air control elements made of plastic, UL 94, V-0, flame retardant
  • Plenum box made of galvanised sheet steel
  • End plates and end angles made of aluminium
  • Lip seal made of rubber
  • Lining is mineral wool
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • WW: Air control elements similar to RAL 9010, white


Mineral wool

  • To EN 13501, fire rating class A1, non-combustible
  • RAL quality mark RAL-GZ 388
  • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
  • Faced with glass fibre fabric as a protection against erosion through airflow velocities of up to 20 m/s
  • Inert to fungal and bacterial growth

Technical data

  • Nominal length: 600 – 1950 mm
  • Number of slots: 1, 2, 3, 4
  • Neck extension: 0, 30, 55, 80, 104, 105, 129 mm
  • Minimum volume flow rate: 15 – 50 (l/s)/m or 54 – 180 (m³/h)/m
  • Maximum volume flow rate with LWA ≅ 50 dB(A): 45 – 135 (l/s)/m or 162 – 486 (m³/h)/m
  • Supply air to room air temperature difference: –10 to +10 K

Sizing data

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

Air-regenerated noise

  • LWA _______________________ [dB(A)]

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Order example: VSD35-2-AK-M-L/1200×123/C2/B00/P1–RAL 9010

Number of slots

2

Connection

Plenum box with clamp fixing

Damper blade for volume flow rate balancing

With

Accessories

Lip seal

Nominal size / spigot diameter

1200 × 123 mm

Neck extension

Without

End pieces

End angles

Extended border

With

Exposed surface

RAL 9010, pure white, gloss level 50 %

Air pattern

Alternating horizontal

Colour of air control elements

Black


 

Variants, Attachments, Dimensions and weight, Product details

  • Variants
  • Attachments
  • Dimensions and weight
  • Product details

VSD35-*-AS

Variant

  • Slot diffuser with plenum box for concealed screw fixing
  • Concealed screw fixing only with profile B00 (with extended border)

Parts and characteristics

  • Plenum box for horizontal duct connection
  • Concealed screw fixing
  • Damper blade (optional)
  • Lip seal (optional)

VSD35-*-DS

Variant

  • Slot diffuser with plenum box for concealed screw fixing
  • Plenum box with lining
  • Concealed screw fixing only with profile B00 (with extended border)

Parts and characteristics

  • Plenum box for horizontal duct connection
  • Concealed screw fixing
  • Thermal and acoustic insulation (lining)
  • Damper blade (optional)
  • Lip seal (optional)

VSD35-*-AK

Variant

  • Slot diffuser with plenum box for clamp fixing

Parts and characteristics

  • Plenum box for horizontal duct connection
  • Damper blade (optional)
  • Lip seal (optional)

VSD35-*-DK

Variant

  • Slot diffuser with plenum box for clamp fixing
  • Plenum box with lining

Parts and characteristics

  • Plenum box for horizontal duct connection
  • Concealed screw fixing
  • Thermal and acoustic insulation (lining)
  • Damper blade (optional)
  • Lip seal (optional)

VSD35-*-AA

Variant

  • Slot diffuser with plenum box for clamp fixing
  • Asymmetric plenum box

Parts and characteristics

  • Plenum box for horizontal duct connection
  • Asymmetric plenum box
  • Damper blade (optional)
  • Lip seal (optional)

VSD35

Nominal length
mm
LN
L1
mm
600 600
750 750
900 900
1050 1050
1200 1200
1350 1350
1500 1500
1650 1650
1800 1800
1950 1950


VSD35

Variant
000
P
mm
B00
P
mm
VSD35-1 35 55
VSD35-2 62 82
VSD35-3 89 109
VSD35-4 116 136


VSD35

Nominal length
mm
LN
L1
mm
L3
mm
600 600 595
750 750 745
900 900 895
1050 1050 1045
1200 1200 1195
1350 1350 1345
1500 1500 1495
1650 1650 1645
1800 1800 1795
1950 1950 1945


VSD35-*-AS

Variant
Y = 0
H3
mm
Y = 0
A
mm
Y = 30
H3
mm
Y = 30
A
mm
Y = 55
H3
mm
Y = 55
A
mm
Y = 80
H3
mm
Y = 80
A
mm
Y = 104
H3
mm
Y = 104
A
mm
B3
mm
H4
mm
ØD
mm
C
mm
VSD35-1/... × 98 228 153 258 183 283 208 308 233 332 257 100 152 98 48
VSD35-1/... × 123 228 153 258 183 283 208 308 233 332 257 100 152 123 46
VSD35-2/... × 123 258 168 288 198 313 223 338 248 362 272 138 182 123 46
VSD35-2/... × 138 258 168 288 198 313 223 338 248 362 272 138 182 138 40
VSD35-3/... × 138 276 177 306 207 331 232 356 257 380 281 176 200 138 40
VSD35-3/... × 158 276 177 306 207 331 232 356 257 380 281 176 200 158 48
VSD35-4/... × 158 308 193 338 223 363 248 388 273 412 297 214 232 158 48
VSD35-4/... × 198 308 193 338 223 363 248 388 273 412 297 214 232 198 48

Y: Neck extension, resulting neck lengths 76, 106, 131, 156, 180 mm


VSD35-*-DS

Variant
Y = 0
H3
mm
Y = 0
A
mm
Y = 30
H3
mm
Y = 30
A
mm
Y = 55
H3
mm
Y = 55
A
mm
Y = 80
H3
mm
Y = 80
A
mm
Y = 104
H3
mm
Y = 104
A
mm
B3
mm
H4
mm
ØD
mm
C
mm
VSD35-1/... × 98 248 153 278 183 303 208 328 233 352 257 138 172 98 48
VSD35-1/... × 123 248 153 278 183 303 208 328 233 352 257 138 172 123 46
VSD35-2/... × 123 278 168 308 198 333 223 358 248 382 272 176 202 123 46
VSD35-2/... × 138 278 168 308 198 333 223 358 248 382 272 176 202 138 40
VSD35-3/... × 138 296 177 326 207 351 232 376 257 400 281 214 220 138 40
VSD35-3/... × 158 296 177 326 207 351 232 376 257 400 281 214 220 158 48
VSD35-4/... × 158 328 193 358 223 383 248 408 273 432 297 254 252 158 48
VSD35-4/... × 198 328 193 358 223 383 248 408 273 432 297 254 252 198 48

Y: Neck extension, resulting neck lengths 76, 106, 131, 156, 180 mm


VSD35-*-AK, VSD35-*-AA

Variant
Y = 0
H3
mm
Y = 0
A
mm
Y = 30
H3
mm
Y = 30
A
mm
Y = 55
H3
mm
Y = 55
A
mm
Y = 80
H3
mm
Y = 80
A
mm
Y = 105
H3
mm
Y = 105
A
mm
Y = 129
H3
mm
Y = 129
A
mm
B3
mm
H4
mm
ØD
mm
C
mm
VSD35-1/... × 98 203 127 233 157 258 182 283 207 308 232 332 256 100 152 98 48
VSD35-1/... × 123 203 127 233 157 258 182 283 207 308 232 332 256 100 152 123 46
VSD35-2/... × 123 233 143 263 173 288 198 313 223 338 248 362 272 138 182 123 46
VSD35-2/... × 138 233 143 263 173 288 198 313 223 338 248 362 272 138 182 138 40
VSD35-3/... × 138 251 152 281 182 306 207 331 232 356 257 380 281 176 200 138 40
VSD35-3/... × 158 251 152 281 182 306 207 331 232 356 257 380 281 176 200 158 48
VSD35-4/... × 158 283 168 313 198 338 223 363 248 388 273 412 297 214 232 158 48
VSD35-4/... × 198 283 168 313 198 338 223 363 248 388 273 412 297 214 232 198 48

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


VSD35-*-DK

Variant
Y = 0
H3
mm
Y = 0
A
mm
Y = 30
H3
mm
Y = 30
A
mm
Y = 55
H3
mm
Y = 55
A
mm
Y = 80
H3
mm
Y = 80
A
mm
Y = 105
H3
mm
Y = 105
A
mm
Y = 129
H3
mm
Y = 129
A
mm
B3
mm
H4
mm
ØD
mm
C
mm
VSD35-1/... × 98 223 127 253 157 278 182 303 207 328 232 352 256 138 172 98 48
VSD35-1/... × 123 223 127 253 157 278 182 303 207 328 232 352 256 138 172 123 46
VSD35-2/... × 123 253 143 283 173 308 198 333 223 358 248 382 272 176 202 123 46
VSD35-2/... × 138 253 143 283 173 308 198 333 223 358 248 382 272 176 202 138 40
VSD35-3/... × 138 271 152 301 182 326 207 351 232 376 257 400 281 214 220 138 40
VSD35-3/... × 158 271 152 301 182 326 207 351 232 376 257 400 281 214 220 158 48
VSD35-4/... × 158 303 168 333 198 358 223 383 248 408 273 432 297 254 252 158 48
VSD35-4/... × 198 303 168 333 198 358 223 383 248 408 273 432 297 254 252 198 48

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


VSD35-*-AS

Nominal length
mm
LN
VSD35-1
m
kg
VSD35-2
m
kg
VSD35-3
m
kg
VSD35-4
m
kg
600 3.0 3.7 4.3 5.1
750 3.7 4.5 5.3 6.3
900 4.4 5.4 6.3 7.4
1050 5.1 6.2 7.3 8.5
1200 5.8 7.1 8.2 9.6
1350 6.5 7.9 9.2 10.7
1500 7.2 8.8 10.2 11.9
1650 7.9 9.6 11.1 13.0
1800 8.6 10.5 12.1 14.1
1950 9.3 11.3 13.1 15.2

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


VSD35-*-DS

Nominal length
mm
LN
VSD35-1
m
kg
VSD35-2
m
kg
VSD35-3
m
kg
VSD35-4
m
kg
600 3.8 4.6 5.4 6.2
750 4.7 5.7 6.6 7.6
900 5.6 6.7 7.8 9.0
1050 6.4 7.8 8.9 10.3
1200 7.3 8.8 10.1 11.7
1350 8.2 9.9 11.3 13.1
1500 9.1 10.9 12.5 14.4
1650 10.0 11.9 13.7 15.8
1800 10.8 13.0 14.9 17.2
1950 11.7 14.0 16.1 18.5

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


VSD35-*-AK, VSD35-*-AA

Nominal length
mm
LN
VSD35-1
m
kg
VSD35-2
m
kg
VSD35-3
m
kg
VSD35-4
m
kg
600 2.2 2.9 3.6 4.3
750 2.7 3.6 4.4 5.3
900 3.3 4.3 5.1 6.2
1050 3.8 4.9 5.9 7.2
1200 4.3 5.6 6.7 8.1
1350 4.8 6.3 7.5 9.0
1500 5.3 6.9 8.3 10.0
1650 5.8 7.6 9.1 10.9
1800 6.4 8.2 9.9 11.9
1950 6.9 8.9 10.7 12.8

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


VSD35-*-DK

Nominal length
mm
LN
VSD35-1
m
kg
VSD35-2
m
kg
VSD35-3
m
kg
VSD35-4
m
kg
600 3.1 3.9 4.6 5.5
750 3.8 4.7 5.6 6.6
900 4.4 5.6 6.6 7.8
1050 5.1 6.5 7.6 9.0
1200 5.8 7.3 8.6 10.2
1350 6.5 8.2 9.6 11.4
1500 7.2 9.0 10.7 12.5
1650 7.9 9.9 11.7 13.7
1800 8.6 10.8 12.7 14.9
1950 9.3 11.6 13.7 16.1

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


Variant
000
P
mm
000
E
mm
B00
P
mm
B00
E
mm
VSD35-1 35 110 55 100
VSD35-2 62 110 82 100
VSD35-3 89 110 109 100
VSD35-4 116 110 136 100

Y: Neck extension, resulting neck lengths 51, 81, 106, 131, 156, 180 mm


Number of spigots and spigot diameter

Nominal length VSD35-1 VSD35-2 VSD35-3 VSD35-4
Nominal length ØD
Nominal length mm

600 – 1500

1 × 98

1 × 123

1 × 123

1 × 138

1 × 138

1 × 158

1 × 158

1 × 198

1650 – 1950

2 × 98

2 × 123

2 × 123

2 × 138

2 × 138

2 × 158

2 × 158

2 × 198


Profiles

VSD35

Variant
000
P
mm
B00
P
mm
VSD35-1 35 55
VSD35-2 62 82
VSD35-3 89 109
VSD35-4 116 136


VSD35

Nominal length
mm
LN
VSD35-1
Aeff

VSD35-1
Aeff WS

VSD35-2
Aeff

VSD35-2
Aeff WS

VSD35-3
Aeff

VSD35-3
Aeff WS

VSD35-4
Aeff

VSD35-4
Aeff WS

600 0.0035 0.0039 0.0070 0.0078 0.0105 0.0117 0.0140 0.0156
750 0.0044 0.0049 0.0088 0.0097 0.0131 0.0146 0.0175 0.0194
900 0.0053 0.0058 0.0105 0.0117 0.0158 0.0175 0.0210 0.0233
1050 0.0061 0.0068 0.0123 0.0136 0.0184 0.0204 0.0245 0.0272
1200 0.0070 0.0078 0.0140 0.0156 0.0210 0.0233 0.0280 0.0311
1350 0.0079 0.0088 0.0158 0.0175 0.0237 0.0262 0.0315 0.0350
1500 0.0088 0.0097 0.0175 0.0194 0.0263 0.0292 0.0350 0.0389
1650 0.0096 0.0107 0.0193 0.0214 0.0289 0.0321 0.0385 0.0428
1800 0.0105 0.0117 0.0210 0.0233 0.0315 0.0350 0.0421 0.0467
1950 0.0114 0.0126 0.0228 0.0253 0.0342 0.0379 0.0456 0.0505

Aeff: One-way horizontal and alternating horizontal air dischargeAeff WS: Alternating angled air discharge


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
  • Horizontal duct connection
  • Diffusers with a shorter plenum box as well as non-active diffusers require a rear blanking plate; length of blanking plate = L1 – L3
  • For a continuous linear arrangement connect the diffusers with connecting pins and alignment plates
  • 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 00134438_0

  • Move the air control element near the spigot in such a way that it is possible to insert a screw driver


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.

  • Slot diffusers with plenum box and damper blade (variant -M): The damper blade can be adjusted even after the diffuser face has been installed.

Principal dimensions

ØD [mm]

Outer diameter of the spigot

L₁ [mm]

Length of diffuser without end pieces

L₃ [mm]

Length of plenum box

P [mm]

Width of diffuser face – with extended border, if any

B₃ [mm]

Width of plenum box

H₃ [mm]

Height of slot diffuser with plenum box, from the lower edge of the suspended ceiling to the upper edge of the plenum box

Y [mm]

Neck extension – The neck length results from a fixed length plus the neck extension

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

fm [Hz]

Octave band centre frequency

LWA [dB(A)]

Sound power level of the air-regenerated noise

V [m³/h] and [l/s]

Volume flow rate

Δpt [Pa]

Total differential pressure


All sound power levels are based on 1 pW.

Nedladdningar

  • produkt information

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