PureLine18

Particularly slim diffuser face, available in numerous variants for many different installation situations

Slot diffusers with 18 mm diffuser face (nominal width) and adjustable air control elements

  • Nominal length 600 – 2000 mm (length of air control element 100 mm), 1 or 2 slots
  • Volume flow rate range 5 – 84 l/s or 17 – 302 m³/h
  • Individually adjustable air control elements for horizontal, angled or vertical air discharge
  • One-way or alternating air discharge meets individual local requirements
  • Uniform air pattern reduces contamination of the ceiling due to the induction of room air
  • Air control elements have grooves that allow for precise positioning


Optional equipment and accessories

  • Attractive appearance due to extruded aluminium sections with anodised finish or powder coating
  • Symmetric or asymmetric position of plenum box
  • Plenum box with lining
  • End plates, end angles, corner sections
  • Different looks due to choice of black, grey or white air control elements

Plenum box shorter than diffuser face, central position, with side entry spigot 00259472_0


  • Application
  • Description

Application

  • Type PureLine18 slot diffusers are used as supply air or extract air devices in comfort zones
  • Particularly unobtrusive diffuser due to its sleek design
  • Installation into suspended ceilings
  • 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
  • Adjustable air control elements allow for horizontal, angled or vertical air discharge
  • Mixed flow system with one-way or alternating air discharge, can be adapted to the building structure
  • 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

Special characteristics

  • Uniform air pattern reduces contamination of the ceiling due to the induction of room air
  • Horizontal, angled or vertical air discharge by means of manually adjustable air control elements
  • Comfortable indoor air climate due to high induction and rapid reduction of temperature differences and airflow velocities
  • High-quality look thanks to anodised extruded aluminium sections (E6-C-0, natural colour) or powder coating (RAL CLASSIC colour)
  • Diffuser face has been optimised for maximum volume flow rate at low sound power levels
  • Suitable for continuous linear arrangement

Nominal sizes

  • LN: 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800, 1900, 2000 mm
  • Diffuser face also available in intermediate sizes

Variants

  • PL18-*: 1 or 2 slots
  • PL18-*-DF: Diffuser face with spring clip
  • PL18-*-DS: Diffuser face with extended border (B00) and screw fixing
  • PL18-*-PB: Plenum box for screw fixing
  • PL18-*-PF: Diffuser face and plenum box, non-detachable fixing
  • PL18-*-SF: Diffuser face and plenum box, detachable fixing
  • PL18-*-CS: Corner section


Position of plenum box on the front diffuser

  • Central position
  • On the left (LE)
  • On the right (RI)


Plenum box variant

  • Symmetric position of plenum box, side entry spigot (HS)
  • Symmetric position of plenum box, top entry spigot (VS)
  • Asymmetric position of plenum box, side entry spigot (HA)

Construction

Diffuser face finish

  • Anodised, E6-C-0, natural colour
  • P1: Powder-coated RAL 9010, pure white, gloss level 50%
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30%
  • P1: Powder-coated in any other RAL CLASSIC colour, gloss level 70%

Attachments

  • D: Damper blade for volume flow rate balancing
  • LS: Lip seal
  • L: Internal insulation
  • EP: Two end plates
  • EA: Two end angles


Single diffusers are factory fitted with end plates or end angles.

Accessories

  • EP: Two end plates
  • EA: Two end angles


For a continuous linear arrangement the end plates or end angles have to be ordered separately and fitted by others.

Construction features

  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • 4 suspension points for on-site installation (by others)
  • The manually adjustable air control elements have grooves that make it easier to adjust the elements and lock them in the required position
  • Spigot with groove for lip seal (if accessory with lip seal has been ordered)
  • Diffuser face sizes from 600 to 2000 mm, in increments of 1 mm
  • Plenum boxes are only available in nominal lengths

Materials and surfaces

  • Diffuser face made from extruded aluminium sections
  • Air control elements made of ABS 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 with vinyl closed cell foam
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • G: Air control elements similar to RAL 9006, grey
  • W: Air control elements similar to RAL 9010, white


Mineral wool

  • Where the mineral wool comes into contact with air, it is faced with glass fibre fabric as a protection against abrasion due to airflow velocities up to 20 m/s
  • 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
  • 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

Technical 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, at an angle or vertically.

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 PureLine18 slot diffusers are factory fitted with manually adjustable air control elements.

The air pattern can be adjusted to meet different local requirements.

Air discharge is one-way or alternating horizontal.

Other patterns: heating mode with vertical air discharge; angled air discharge.

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, PureLine18 diffusers may also be used for extract air.

Nominal length

600 – 2000 mm, in increments of 100 mm

Number of slots

1 or 2

Minimum volume flow rate, with ∆tz = –10 K

5 l/s or 17 m³/h

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

84 l/s or 302 m³/h

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.

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

Up to nominal length 1500 mm, sizing includes one spigot; from length 1600 mm, two spigots are required.

PL18-1, 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 = 78 D = 98 D = 78 D = 98 D = 78 D = 98
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

5

17

4

<15

3

<15

5

<15

4

<15

8

<15

5

<15

600

10

38

15

29

14

26

21

29

16

26

35

29

22

26

600

16

58

34

40

31

38

49

41

37

38

81

41

50

38

600

22

78

62

49

57

46

88

49

67

46

148

49

91

46

700

6

20

4

<15

3

<15

6

<15

4

<15

10

<15

6

<15

700

12

42

14

29

13

26

22

29

16

26

39

30

23

27

700

18

63

32

40

28

38

49

41

35

38

89

41

51

38

700

24

85

57

48

51

46

88

49

63

46

159

49

91

46

800

6

23

4

<15

3

<15

6

<15

4

<15

12

<15

7

<15

800

13

46

14

29

12

27

23

30

16

27

44

30

24

27

800

19

69

31

40

27

38

51

41

35

38

98

41

54

38

800

26

92

54

48

47

46

91

49

61

46

173

49

94

46

900

7

26

4

<15

4

<15

7

<15

5

<15

14

<15

7

<15

900

14

50

14

30

12

27

25

30

16

27

50

31

26

28

900

21

75

30

41

25

38

54

41

35

38

109

41

57

38

900

28

99

52

48

44

46

95

49

61

46

190

49

99

46

1000

8

29

4

<15

4

<15

8

<15

5

<15

16

<15

8

<15

1000

15

54

14

30

11

27

27

30

17

28

56

31

28

28

1000

22

80

29

41

24

38

57

41

35

38

119

41

60

38

1000

29

105

51

48

41

45

99

49

60

46

206

49

104

46

1100

9

32

5

<15

4

<15

9

<15

6

<15

19

<15

10

<15

1100

16

58

14

30

11

28

29

31

17

28

62

31

30

28

1100

24

85

29

41

23

38

60

41

36

38

130

42

64

38

1100

31

111

50

48

39

45

104

49

61

46

224

49

109

46

1200

10

35

5

<15

4

<15

10

15

6

<15

22

16

11

<15

1200

17

62

14

31

11

28

31

31

18

28

69

32

33

29

1200

25

90

29

41

23

38

64

41

37

38

143

42

68

39

1200

33

117

50

48

38

45

109

49

62

46

243

49

115

46

1300

11

38

5

16

4

<15

11

16

6

<15

25

17

12

<15

1300

18

66

15

31

11

28

34

32

19

29

77

32

36

29

1300

26

95

30

41

22

38

69

41

38

38

156

42

73

39

1300

34

123

50

48

37

45

116

49

64

46

263

49

123

46

1400

11

41

6

16

4

<15

13

17

7

<15

29

17

13

<15

1400

19

70

15

31

11

28

36

32

20

29

84

32

39

29

1400

27

99

30

41

22

38

73

41

39

38

168

42

77

39

1400

36

128

50

48

36

45

121

49

65

46

281

49

129

46

1500

12

44

6

17

4

<15

14

18

8

<15

33

18

15

15

1500

20

74

16

32

11

29

40

32

21

29

93

33

42

30

1500

29

104

31

41

22

38

78

42

41

39

183

42

83

39

1500

37

134

51

48

36

45

129

49

67

46

304

49

137

46

1600

13

47

4

<15

3

<15

6

<15

4

<15

12

<15

7

<15

1600

24

86

12

30

11

28

20

31

14

28

38

31

21

28

1600

35

125

25

41

22

38

42

41

29

38

80

41

44

39

1600

46

164

43

48

37

46

72

49

49

46

138

49

75

46

1700

14

49

4

<15

3

<15

7

<15

5

<15

13

<15

7

<15

1700

25

90

12

31

10

28

21

31

14

28

40

31

22

28

1700

36

130

25

41

21

38

43

41

28

38

84

42

45

39

1700

47

170

42

48

36

46

74

49

48

46

144

49

77

46

1800

15

52

4

<15

4

<15

7

15

5

<15

14

16

7

<15

1800

26

94

12

31

10

28

22

31

14

28

43

32

23

29

1800

37

135

25

41

21

38

44

41

29

38

89

42

46

39

1800

49

176

41

48

35

46

75

49

48

46

151

49

79

46

1900

15

55

4

15

4

<15

8

16

5

<15

15

16

8

<15

1900

27

98

12

31

10

28

22

31

14

29

46

32

24

29

1900

39

140

24

41

20

38

46

41

29

38

93

42

48

39

1900

51

182

41

48

34

46

77

49

48

46

158

49

81

46

2000

16

58

4

16

4

<15

8

16

5

<15

16

17

8

<15

2000

28

101

12

31

10

28

23

32

14

29

48

32

24

29

2000

40

144

24

41

20

38

47

41

29

38

97

42

49

39

2000

52

187

40

48

33

45

78

49

48

46

164

49

82

46


PL18-2, 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 = 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

10

35

4

<15

4

<15

6

<15

4

<15

11

<15

6

<15

600

19

67

13

28

11

26

21

29

15

26

37

30

21

27

600

27

98

28

39

24

36

46

40

31

37

81

41

46

38

600

36

130

49

47

42

44

79

48

54

45

141

49

79

45

700

11

41

4

<15

4

<15

7

<15

5

<15

13

<15

7

<15

700

21

74

13

29

11

26

23

30

15

27

43

31

23

27

700

30

108

27

39

22

36

48

40

31

37

90

41

48

38

700

39

141

46

47

38

44

82

48

52

44

155

49

82

45

800

13

47

5

<15

4

<15

9

<15

5

<15

16

16

9

<15

800

23

81

13

29

11

26

25

31

15

27

49

32

25

28

800

32

116

26

39

21

36

51

40

31

37

100

42

51

38

800

42

151

44

47

35

43

85

48

51

44

169

49

85

45

900

15

52

5

15

4

<15

10

16

6

<15

20

18

10

<15

900

25

89

14

30

10

27

28

31

16

27

56

32

28

28

900

35

125

26

39

20

36

54

41

31

37

111

42

54

38

900

45

161

44

46

33

43

90

48

52

44

185

49

90

45

1000

16

58

6

16

4

<15

12

18

7

<15

24

19

12

15

1000

27

95

14

30

10

27

30

32

17

28

64

33

30

29

1000

37

133

27

39

19

36

58

41

32

37

123

42

58

38

1000

47

170

43

46

31

43

95

48

52

44

201

49

95

45

1100

18

64

6

18

4

<15

13

19

7

15

28

20

13

16

1100

28

102

14

31

10

27

33

32

18

28

71

34

33

29

1100

39

140

27

39

19

36

62

41

33

37

134

42

62

38

1100

49

178

43

46

30

43

100

48

53

44

216

49

100

45

1200

19

70

7

19

5

15

15

20

8

16

33

22

15

18

1200

30

109

15

31

10

28

36

33

19

29

79

34

36

30

1200

41

147

27

40

18

36

66

41

34

37

146

43

66

38

1200

52

186

43

46

29

43

105

48

54

44

232

49

105

45

1300

21

76

7

20

5

16

17

21

9

17

38

23

17

19

1300

32

115

16

31

10

28

40

33

20

29

88

35

39

30

1300

43

155

28

40

18

36

71

41

36

37

158

43

71

39

1300

54

194

44

46

29

43

112

48

56

44

249

49

111

45

1400

23

81

8

21

5

17

20

22

10

18

44

24

20

20

1400

34

121

17

32

11

28

43

33

21

30

97

35

43

31

1400

45

161

29

40

18

36

75

41

37

37

170

43

75

39

1400

56

201

45

46

28

42

117

48

57

44

265

49

117

45

1500

24

87

8

22

5

18

22

23

11

19

50

25

22

21

1500

35

128

17

32

11

29

47

34

22

30

106

35

46

31

1500

47

168

30

40

18

36

80

42

39

38

183

43

80

39

1500

58

208

46

46

28

42

123

48

59

44

281

49

123

45

1600

26

93

5

17

4

<15

9

18

5

<15

16

19

9

15

1600

42

152

12

31

9

28

22

32

13

28

43

33

22

29

1600

59

211

22

40

17

37

42

41

25

37

83

42

42

38

1600

75

270

36

47

28

44

68

48

41

44

135

49

68

45

1700

27

99

5

18

4

<15

9

19

6

15

18

20

9

16

1700

44

159

12

31

9

28

23

32

14

28

46

33

23

29

1700

61

218

22

40

17

37

43

41

25

37

87

42

43

38

1700

77

278

35

46

27

43

70

48

41

44

140

49

69

45

1800

29

105

5

18

4

15

10

20

6

16

20

21

10

17

1800

46

165

12

31

9

28

24

32

14

29

49

34

24

30

1800

63

226

22

40

17

37

45

41

26

37

92

42

45

38

1800

80

287

35

46

26

43

72

48

41

44

147

49

72

45

1900

31

111

5

19

4

16

11

20

6

17

22

22

11

18

1900

48

172

12

31

9

28

25

33

14

29

52

34

25

30

1900

65

234

22

40

16

37

46

41

26

38

96

43

46

39

1900

82

295

35

46

26

43

74

48

41

44

153

49

73

45

2000

32

116

6

20

4

16

12

21

7

17

24

22

12

18

2000

50

178

12

32

9

28

26

33

15

29

56

34

26

30

2000

67

240

22

40

16

37

48

41

26

38

100

43

48

39

2000

84

302

34

46

25

43

75

48

41

44

159

49

75

45

Slot diffusers of Type PL18, with individually manually adjustable air control elements and 1 or 2 slots.

Air discharge can be alternating horizontal, alternating angled, vertical, one-way horizontal to the left or one-way horizontal to the right.

The slot diffusers are intended to be installed in suspended ceilings and are suitable for supply air and extract air. Ready-to-install component which consists of a diffuser face with a choice of black, grey or white air control elements.

Variants with plenum box have 1 or 2 spigots; symmetrically positioned plenum boxes may have side entry or top entry spigots, while asymmetrically positioned plenum boxes have only side entry spigots.

The plenum boxes are fitted with 4 suspension lugs.

The diffuser face fixing can be detachable or non-detachable.

Spigots are suitable for circular ducts according to EN 1506 or EN 13180. The sound power level of air-regenerated noise is measured according to EN ISO 5135.

Special characteristics

  • Uniform air pattern reduces contamination of the ceiling due to the induction of room air
  • Horizontal, angled or vertical air discharge by means of manually adjustable air control elements
  • Comfortable indoor air climate due to high induction and rapid reduction of temperature differences and airflow velocities
  • High-quality look thanks to anodised extruded aluminium sections (E6-C-0, natural colour) or powder coating (RAL CLASSIC colour)
  • 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 ABS 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 with vinyl closed cell foam
  • Diffuser face with anodised finish, E6-C-0, natural colour
  • P1: Powder-coated, RAL CLASSIC colour
  • Air control elements similar to RAL 9005, black
  • G: Air control elements similar to RAL 9006, grey
  • W: Air control elements similar to RAL 9010, white


Mineral wool

  • Where the mineral wool comes into contact with air, it is faced with glass fibre fabric as a protection against abrasion due to airflow velocities up to 20 m/s
  • 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
  • Inert to fungal and bacterial growth

Construction

Diffuser face finish

  • Anodised, E6-C-0, natural colour
  • P1: Powder-coated RAL 9010, pure white, gloss level 50%
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30%
  • P1: Powder-coated in any other RAL CLASSIC colour, gloss level 70%

Technical data

  • Nominal length: 600 – 2000 mm, in increments of 100 mm
  • Number of slots: 1 or 2
  • Minimum volume flow rate, with ∆tz = –10 K: 5 l/s or 17 m³/h
  • Maximum volume flow rate, with LWA ≅ 50 dB(A): 84 l/s or 302 m³/h
  • 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: PL18-1-S-PF-HS/1200x1200x98/1

Number of slots

1

System

Supply air

Variant

Diffuser face fixed to the plenum box, non-detachable

Plenum box variant

Symmetric position of plenum box, side entry spigot

Nominal size

Diffuser face 1200 mm, plenum box 1200 mm, spigot diameter 98 mm

No. of spigots

1

Damper blade for volume flow rate balancing

Without

Lip seal

Without

Lining

Without

Position of plenum box

Central position

Air pattern

Alternating horizontal

Extended border

Without

End pieces

Without

Surface

Anodised, E6-C-0, natural colour

Colour of air control elements

Black


Order example: PL18-2-S-SF-HS/1200x1000x123/2-D-LS-L-LE/AS/B00/EA/P1-RAL 9010/W

Number of slots

2

System

Supply air

Variant

Diffuser face fixed to the plenum box, detachable

Plenum box variant

Symmetric position of plenum box, side entry spigot

Nominal size

Diffuser face 1200 mm, plenum box 1000 mm, spigot diameter 123 mm

No. of spigots

2

Damper blade for volume flow rate balancing

With

Lip seal

With

Lining

With

Position of plenum box

Left side

Air pattern

Alternating angled

Extended border

With

End pieces

With end angle

Surface

Powder-coated RAL 9010, pure white, gloss level approx. 50%

Colour of air control elements

White


Order example: PL18-2-S-DF/1200/V/B00/EP/P1-RAL 9006/G

Number of slots

2

System

Supply air

Variant

Diffuser face with extended border and spring clip

Plenum box variant

No plenum box

Nominal size

Diffuser face 1200 mm

No. of spigots

Without

Damper blade for volume flow rate balancing

Without

Lip seal

Without

Lining

Without

Position of plenum box

No plenum box

Air pattern

Vertical

Extended border

With extended border

End pieces

With end plate

Surface

Powder-coated RAL 9006, white aluminium, gloss level approx. 30%

Colour of air control elements

Grey


Order example: PL18-2- -CS/150x300x90/B00/RAL 9016

Number of slots

2

Variant

Corner section

Dimensions

Leg length E: 150 mm; leg length F: 300 mm; 90° angle

Extended border

With extended border (B00)

Surface

P1: Powder-coated RAL 9016, traffic white, gloss level approx. 70%


 

Variants, Dimensions and weight

  • Variants
  • Dimensions and weight

Nominal length

Nominal length L₁
Nominal length mm

600

600

700

700

800

800

900

900

1000

1000

1100

1100

1200

1200

1300

1300

1400

1400

1500

1500

1600

1600

1700

1700

1800

1800

1900

1900

2000

2000


Variant

Variant With extended border
Variant P
Variant mm

PL18-1

38

PL18-2

55


Dimensions [mm]

Nominal length L₁ L₃

600

600

595

700

700

695

800

800

795

900

900

895

1000

1000

995

1100

1100

1095

1200

1200

1195

1300

1300

1295

1400

1400

1395

1500

1500

1495

1600

1600

1595

1700

1700

1695

1800

1800

1795

1900

1900

1895

2000

2000

1995


Variant

Variant B3 H4 R M A O

PL18-1-HS / HA

70

120

100

18

110


PL18-2-HS / HA

100

150

115

35

140


PL18-1-VS

138

150


18

178


PL18-2-VS

138

150


35

178


PL18-1-PF-HA






54

PL18-2-PF-HA






67

PL18-1-SF-HA






50

PL18-2-SF-HA






63


Variant

Variant ∅D C

PL18-1

78

42

PL18-1

98

50

PL18-2

98

50

PL18-2

123

48


Weights

Plenum box variant Variant kg/m

Diffuser face

PL18-1

0.5

Diffuser face

PL18-2

0.8

Plenum box HS/HA

PL18-1

2.4

Plenum box HS/HA

PL18-2

3.4

Plenum box VS

PL18-1

2.9

Plenum box VS

PL18-2

2.8

Total weight = weight of diffuser face + weight of plenum box


Variant

Variant Without extended border With extended border
Variant P
Variant mm

PL18-1

18

38

PL18-2

35

55


E F W

Min. entry value

100

100

45°

Max. entry value

300

300

175°


Variant

Variant Without extended border With extended border
Variant P
Variant mm

PL18-1

18

38

PL18-2

35

55


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

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

Installation and commissioning

  • For room heights up to 4 m (lower edge of suspended ceiling)
  • Flush ceiling installation
  • Horizontal or vertical duct connection
  • If (L₃+ 5) < L1, the plenum box can be positioned to the left, to the right or in the centre.
  • For a continuous linear arrangement connect the diffusers with alignment plates
  • If necessary, carry out volume flow rate balancing with the damper blade
  • Fixing material for fixing the slot diffusers is to be provided by others


These are only schematic diagrams to illustrate installation details.

Volume flow rate balancing 00261789_0

  • Move the air control element near the spigots 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 -D): 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

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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Visual contact Visual contact

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For general question regarding products or services you can also call:
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