Type DID312

Active chilled beam with two-way air discharge, 300 mm nominal width, vertical heat exchanger and condensate drip tray

Active chilled beam for heating and cooling, with 2-pipe or 4-pipe heat exchanger, for integration with various ceiling systems. The condensate drip tray is useful if the temperature temporarily falls below the dew point.

  • Preferably for room heights up to 4.00 m
  • High heating and cooling capacity with a low conditioned primary air volume flow rate and low sound power level
  • High comfort levels due to low airflow velocity in the occupied zone
  • Three nozzle variants to optimise induction based on demand
  • Hinged, removable induced air grille in four designs


Optional equipment and accessories

  • Control system
  • Additional casing for extract air
  • Heat exchanger powder-coated black
  • Powder coating in many different colours, e.g. RAL CLASSIC

DID312-LR 00131473_0


  • Application
  • Description

Application

  • Active chilled beams of Type DID312 for the integration into various ceiling systems, preferably for room heights up to 4.00 m
  • The vertical heat exchangers and the condensate drip tray are useful if the temperature temporarily falls below the dew point.
  • 2-pipe or 4-pipe heat exchangers enable good comfort levels with a low conditioned primary air volume flow rate
  • Energy-efficient solution since water is used for heating and cooling

Special characteristics

  • The vertical heat exchanger with condensate drip tray is useful if the temperature temporarily falls below the dew point
  • Hinged, removable induced air grille in four designs
  • Heat exchanger as 2-pipe or 4-pipe system
  • Internal nozzle plate with punched nozzles (non-combustible)
  • Water connection at the narrow side, Ø12 mm Cu pipe, either with plain tails or with G½" external thread and flat seal

Nominal sizes

  • 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm

Variants

  • DID312-LR: With induced air grille – perforated sheet metal, circular holes
  • DID312-LQ: With induced air grille – perforated sheet metal, square holes
  • DID312-GL: With induced air grille – longitudinal blades
  • DID312-GQ: With induced air grille – transverse blades


Heat exchanger

  • 2: 2-pipe systems
  • 4: 4-pipe systems


Nozzle variants

  • Z: Small plus
  • M: Medium
  • G: Large

Construction

  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL colour, gloss level 70 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %

Attachments

  • Additional casing for extract air, with side spigot
  • Water connection A1: G½" external thread and flat seal
  • Water connection A2: G½" union nut and flat seal

Useful additions

  • Connecting hoses
  • Control equipment consisting of a control panel including a controller with integral room temperature sensor; valves and valve actuators; and lockshields
  • X-AIRCONTROL control system

Construction features

  • Spigot is suitable for circular ducts to EN 1506 or EN 13180
  • 4 or 6 suspension points for on-site installation (by others)
  • Three nozzle variants to optimise induction based on demand
  • Optional extract air spigot on the same side as the primary air spigot or opposite
  • Condensate drip tray including condensate drain that can be connected to a condensate pipe (Ø12 mm, to be provided by others)

Materials and surfaces

  • Casing, front frame, nozzle plate, and perforated induced air grille (LR/LQ) made of galvanised sheet steel
  • Border and blades of the induced air grille (GL/GQ) made of aluminium sections
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces are powder-coated pure white (RAL 9010) or in any other RAL colour
  • Heat exchanger also in black (RAL 9005)
  • Nozzle plate powder-coated black (RAL 9005)
  • Additional casing for extract air with a spigot made of galvanised sheet steel

Standards and guidelines

  • Products are certified by Eurovent (no. 09.12.432) and listed on the Eurovent website
  • Declaration of hygiene conformity to VDI 6022

Maintenance

  • No moving parts, hence low maintenance
  • The heat exchanger can be vacuumed with an industrial vacuum cleaner if necessary
  • VDI 6022, Part 1, applies (Hygiene requirements for ventilation and air-conditioning systems and units)

Technical information

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

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

Functional description

Active chilled beams provide centrally conditioned primary air (fresh air) to the room and use heat exchangers for additional cooling and/or heating.

The primary air is discharged through nozzles into the mixing chambers; as a result of this, secondary air (room air) is induced via the induced air grille and passes through the heat exchanger.

Primary and secondary air mix and are then supplied to the room horizontally through the supply air slots.

Nominal length

900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm

Length

893 – 3000 mm

Height

210/241 mm

Width

293, 300, 312 mm

Primary air spigot, diameter

123/158 mm

Primary air volume flow rate

5 – 70 l/s or 18 – 252 m³/h

Cooling capacity

Up to 1830 W

Heating capacity

Up to 1240 W

Max. operating pressure, water side

6 bar

Max. operating temperature

75 °C


The quick sizing table contains operating points for defined reference units. For other operating points you may use the Easy Product Finder design software.

Quick sizing

LN Primary air Cooling Heating
LN VPr m³/h Δpt LWA 2-pipe and 4-pipe systems 4-pipe system
LN VPr m³/h Δpt LWA Qtot QWK ΔtW ΔpW QWH = Qtot ΔtW ΔpW
LN l/s m³/h Pa dB(A) W K kPa W K kPa

900

Z

5

18

55

23

267

207

1.2

1.6

327

4.7

0.3

900

Z

7

25

108

31

342

258

1.5

1.6

372

5.3

0.3

900

Z

10

36

220

41

431

311

1.8

1.6

418

6.0

0.3

900

M

7

25

44

21

289

205

1.2

1.6

304

4.4

0.3

900

M

11

40

109

33

413

281

1.6

1.6

361

5.2

0.3

900

M

16

58

231

43

534

341

2.0

1.6

407

5.8

0.3

900

G

13

47

45

23

398

241

1.4

1.6

334

4.8

0.3

900

G

21

76

116

36

569

316

1.8

1.6

396

5.7

0.3

900

G

25

90

165

40

644

342

2.0

1.6

418

6.0

0.3

1200

Z

6

22

47

21

322

250

1.4

1.8

416

6.0

0.3

1200

Z

10

36

129

35

475

354

2.0

1.8

504

7.2

0.3

1200

Z

15

54

240

45

613

433

2.5

1.8

571

8.2

0.3

1200

M

9

32

43

22

369

260

1.5

1.8

397

5.7

0.3

1200

M

15

54

120

35

556

375

2.1

1.8

482

6.9

0.3

1200

M

21

76

235

44

699

446

2.6

1.8

536

7.7

0.3

1200

G

16

58

42

23

494

301

1.7

1.8

429

6.2

0.3

1200

G

23

83

86

33

654

377

2.2

1.8

491

7.0

0.3

1200

G

30

108

146

40

792

430

2.5

1.8

535

7.7

0.3

1500

Z

8

29

48

23

421

324

1.9

2.1

526

7.5

0.4

1500

Z

11

40

91

31

537

405

2.3

2.1

593

8.5

0.4

1500

Z

16

58

193

41

687

494

2.8

2.1

668

9.6

0.4

1500

M

11

40

39

21

446

313

1.8

2.1

485

7.0

0.4

1500

M

18

65

103

34

666

449

2.6

2.1

585

8.4

0.4

1500

M

26

94

215

43

857

543

3.1

2.1

655

9.4

0.4

1500

G

21

76

45

25

636

383

2.2

2.1

539

7.7

0.4

1500

G

29

104

86

34

814

465

2.7

2.1

605

8.7

0.4

1500

G

38

137

148

41

989

530

3.0

2.1

658

9.4

0.4

1800

Z

9

32

42

21

472

363

2.1

2.3

603

8.6

0.5

1800

Z

16

58

131

36

724

531

3.0

2.3

740

10.6

0.5

1800

Z

19

68

185

41

807

577

3.3

2.3

779

11.2

0.5

1800

M

14

50

43

23

557

389

2.2

2.3

587

8.4

0.5

1800

M

23

83

117

36

824

547

3.1

2.3

701

10.0

0.5

1800

M

35

126

>200

47

1090

668

3.8

2.3

791

11.3

0.5

1800

G

25

94

52

27

774

460

2.6

2.3

642

9.2

0.5

1800

G

34

122

88

34

950

540

3.1

2.3

705

10.1

0.5

1800

G

41

148

128

39

1087

592

3.4

2.3

747

10.7

0.5

2100

Z

11

40

44

25

583

451

1.8

5.2

747

7.1

1.1

2100

Z

17

61

104

36

814

509

2.4

5.2

880

8.4

1.1

2100

Z

21

76

159

42

935

682

2.7

5.2

942

9.0

1.1

2100

M

16

58

39

25

648

455

1.8

5.2

706

6.7

1.1

2100

M

26

94

102

37

963

649

2.5

5.2

848

8.1

1.1

2100

M

36

130

195

46

1205

770

3.0

5.2

939

9.0

1.1

2100

G

31

112

45

29

935

562

2.2

5.2

788

7.5

1.1

2100

G

42

151

83

37

1180

673

2.6

5.2

878

8.4

1.1

2100

G

58

209

158

45

1485

786

3.1

5.2

971

9.3

1.1

2400

Z

12

43

41

25

634

489

1.9

5.6

826

7.9

1.3

2400

Z

18

65

93

35

873

656

2.6

5.6

964

9.2

1.3

2400

Z

23

83

152

42

1029

751

2.9

5.6

1043

10.0

1.3

2400

M

19

68

44

27

761

532

2.1

5.6

809

7.7

1.3

2400

M

28

101

95

37

1043

705

2.8

5.6

935

8.9

1.3

2400

M

36

130

156

43

1245

811

3.2

5.6

1013

9.7

1.3

2400

G

35

126

48

30

1050

628

2.5

5.6

884

8.4

1.3

2400

G

48

173

90

38

1338

757

3.0

5.6

987

9.4

1.3

2400

G

60

216

140

44

1568

844

3.3

5.6

1058

10.1

1.3

2700

Z

13

47

39

24

683

526

2.1

6.1

907

8.7

1.4

2700

Z

20

72

92

35

964

722

2.8

6.1

1070

10.2

1.4

2700

Z

25

90

143

41

1119

818

3.2

6.1

1147

11.0

1.4

2700

M

20

72

39

26

798

556

2.2

6.1

876

8.4

1.4

2700

M

29

104

82

35

1082

742

2.9

6.1

1009

9.6

1.4

2700

M

39

140

148

43

1350

879

3.4

6.1

1114

10.6

1.4

2700

G

38

137

47

30

1138

680

2.7

6.1

972

9.3

1.4

2700

G

52

187

88

38

1449

822

3.2

6.1

1085

10.4

1.4

2700

G

63

227

129

43

1664

904

3.5

6.1

1149

11.0

1.4

3000

Z

15

54

42

26

778

597

2.3

6.5

1002

9.6

1.5

3000

Z

21

76

83

34

1018

764

3.0

6.5

1137

10.9

1.5

3000

Z

27

97

136

41

1207

881

3.4

6.5

1233

11.8

1.5

3000

M

20

72

32

24

791

550

2.2

6.5

914

8.7

1.5

3000

M

32

115

82

36

1195

809

3.2

6.5

1097

10.5

1.5

3000

M

41

148

135

42

1428

934

3.6

6.5

1188

11.4

1.5

3000

G

45

152

56

33

1320

777

3.0

6.5

1081

10.3

1.5

3000

G

58

209

94

39

1600

901

3.5

6.5

1179

11.3

1.5

3000

G

70

252

136

44

1831

987

3.9

6.5

1248

11.9

1.5

① Nozzle variant ② Air-regenerated noise


Reference values

Parameter Cooling Heating

tR

26 °C

22 °C

tPr

16 °C

22 °C (isothermal)

tWV

16 °C

50 °C

VW (LN 900 – 1800)

150 l/h

60 l/h

VW (LN 2100 – 3000)

220 l/h

90 l/h


Aerodynamic data – extract air

Aerodynamic data – extract air Aerodynamic data – extract air
VExt VExt Δpt LWA
l/s m³/h Pa dB(A)

5

18

1

<10

10

36

3

<10

15

54

7

<10

20

72

12

15

25

90

18

23

30

108

26

30

35

126

35

35

40

144

46

39

45

162

58

43

50

180

72

47


Active chilled beams of Type DID312, with two-way air discharge and high thermal output, providing high thermal comfort levels.

For installation flush with the ceiling, preferably in rooms with a height up to 4.00 m.

The units consist of a casing with suspension points, a spigot, non-combustible nozzles, and two vertical heat exchangers.

Three nozzle variants to optimise induction based on demand.

Special characteristics

  • The vertical heat exchanger with condensate drip tray is useful if the temperature temporarily falls below the dew point
  • Hinged, removable induced air grille in four designs
  • Heat exchanger as 2-pipe or 4-pipe system
  • Internal nozzle plate with punched nozzles (non-combustible)
  • Water connection at the narrow side, Ø12 mm Cu pipe, either with plain tails or with G½" external thread and flat seal

Materials and surfaces

  • Casing, front frame, nozzle plate, and perforated induced air grille (LR/LQ) made of galvanised sheet steel
  • Border and blades of the induced air grille (GL/GQ) made of aluminium sections
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces are powder-coated pure white (RAL 9010) or in any other RAL colour
  • Heat exchanger also in black (RAL 9005)
  • Nozzle plate powder-coated black (RAL 9005)
  • Additional casing for extract air with a spigot made of galvanised sheet steel

Construction

  • Powder-coated RAL 9010, pure white, gloss level 50 %
  • P1: Powder-coated in any other RAL colour, gloss level 70 %
  • P1: Powder-coated RAL 9006, white aluminium, gloss level 30 %

Technical data

  • Nominal length: 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm
  • Length: 893 – 3000 mm
  • Height: 210/241 mm
  • Width: 293, 300, 312 mm
  • Primary air spigot, diameter: 123/158 mm
  • Primary air volume flow rate: 5 – 70 l/s or 18 – 252 m³/h
  • Cooling capacity: up to 1830 W
  • Heating capacity: up to 1240 W
  • Max. operating pressure: 6 bar
  • Max. operating temperature: 75 °C

Sizing data

Primary air

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

Air-regenerated noise

  • LWA _______________________ [dB(A)]

Cooling

  • Qges _______________________ [W]

Heating

  • Qges _______________________ [W]

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

00135558_0

 Type
DID312       Active chilled beam

 Induced air grille
GL       Longitudinal blades
GQ       Transverse blades
LR       Perforated metal, circular holes
LQ       Perforated metal, square holes

 Heat exchanger
2       2-pipe
4       4-pipe

 Nozzle variant
Z       Small plus
M       Medium
G       Large

 Arrangement of casings and connections
LL       (also available as supply and extract air combination)
LR
ML
MR
RL
RR       (also available as supply and extract air combination)

       Note
       L = left side, R = right side, M = centre

 Additional casing for extract air, with spigot
       No entry: none
AV       Front
AH       Rear

 

 Water connections
       No entry: Ø12 mm pipe with plain tails
A1       With G½" external thread and flat seal
A2       With G½" union nut and flat seal

 Total length (diffuser face) × nominal size [mm]
       L × LN
       Supply air
893 – 1500 × 900
1193 – 1800 × 1200
1493 – 2100 × 1500
1793 – 2400 × 1800
2093 – 2700 × 2100
2393 – 3000 × 2400
2693 – 3000 × 2700
2993 – 3000 × 3000


       Supply and extract air combination
1090 – 1500 × 900
1390 – 1800 × 1200
1690 – 2100 × 1500
1990 – 2400 × 1800
2290 – 2700 × 2100
2590 – 3000 × 2400
2890 – 3000 × 2700

Width of front frame [mm]
       B
293
300
312

 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 %

 Surface of heat exchanger
       No entry: untreated
G3       RAL 9005, black

 Valves and actuators
       No entry: none
VS       With

DID312–LR–2–Z–LL/1193×1200×293

Induced air grille

Perforated metal, circular holes

Heat exchanger

2-pipe

Nozzle variant

Small plus

Arrangement of casings and connections

Left side, left side

Total length (diffuser face) × nominal length

1193 × 1200 × 293 mm


DID312–GL–4–M–RR–AV–A1/1193×900×293/P1–RAL9016/G3/VS

Induced air grille

Longitudinal blades

Heat exchanger

4-pipe

Nozzle variant

Medium

Arrangement of casings and connections

Right side, right side

Additional casing for extract air, with spigot

Front

Water connections

With G½" external thread and flat seal

Total length (diffuser face) × nominal length

1193 × 900 × 293 mm

Exposed surface

Powder-coated, RAL 9016

Surface of heat exchanger

Black (RAL 9005)

Valves and actuators

With


 

Variants, Dimensions and weight, Supply and extract air combination

  • Variants
  • Dimensions and weight
  • Supply and extract air combination

Dimensions [mm]

B

293

B

300

B

312

B = Width of front frame


Dimensions [mm]

LN Available sizes ØD H HS
LN L ØD H HS

900

893 – 1500

123

210

140

1200

1193 – 1800

123

210

140

1500

1493 – 2100

123

210

140

1800

1793 – 2400

123

210

140

2100

2093 – 2700

158

241

155

2400

2393 – 3000

158

241

155

2700

2693 – 3000

158

241

155

3000

2993 – 3000

158

241

155

L = Total length (diffuser face)

LN = Nominal length


Weights

Nominal length (LN) mm 900 1200 1500 1800 2100 2400 2700 3000

DID312-LR

kg/piece

15

19

23

27

31

35

39

43

DID312-LQ

kg/piece

15

19

23

27

31

35

39

43

DID312-GL

kg/piece

16

20

25

29

33

38

42

46

DID312-GQ

kg/piece

16

20

25

29

33

38

42

46

Contained water (max.)

kg

0.7

1.0

1.3

1.6

1.9

2.2

2.5

2.8

Non-active section as extension: 10 kg/m

Differences in width can be neglected


Dimensions [mm]

B

293

B

300

B

312

B = Width of front frame


Dimensions [mm]

LN Available sizes ØD H HS
LN L ØD H HS

900

1090 – 1500

123

210

140

1200

1390 – 1800

123

210

140

1500

1690 – 2100

123

210

140

1800

1990 – 2400

123

210

140

2100

2290 – 2700

158

241

155

2400

2590 – 3000

158

241

155

2700

2890 – 3000

158

241

155

L = Total length (diffuser face)

LN = Nominal length


Weights

Nominal length (LN) mm 900 1200 1500 1800 2100 2400 2700

DID312-LR

kg/piece

15

19

23

27

31

35

39

DID312-LQ

kg/piece

15

19

23

27

31

35

39

DID312-GL

kg/piece

16

20

25

29

33

38

42

DID312-GQ

kg/piece

16

20

25

29

33

38

42

Contained water (max.)

kg

0.7

1.0

1.3

1.6

1.9

2.2

2.5

Non-active section as extension: 10 kg/m

Extract air spigot Ø98 mm, 3 kg/piece

Differences in width can be neglected


Installation examples, Installation details, Basic information and nomenclature

  • Installation examples
  • Installation details
  • Basic information and nomenclature

Installation and commissioning

  • Preferably for rooms with a clear height up to 4.00 m
  • Flush ceiling installation
  • Side entry primary air spigot
  • Lengths from 893 to 3000 mm, and widths of 293, 300, and 312 mm, hence suitable for various ceiling systems
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • Active chilled beam has 4 suspension points (6 for nominal size 2100 mm and above) for on-site installation (by others)
  • Heat exchangers are fitted with water flow and water return connections at the narrow side


Installation into T-bar ceilings

  • To avoid too much load on the ceiling, the suspension points should be used

LN [mm]

Nominal length

LWA [dB(A)]

Sound power level

tPr [°C]

Primary air temperature

tWV [C°]

Water flow temperature – cooling/heating

tR [C°]

Room temperature

tR [C°]

Room temperature

tAN [C°]

Secondary air intake temperature

QPr [W]

Thermal output – primary air

Qtot [W]

Thermal output – total

QW [W]

Thermal output – water side, cooling/heating

VPr [l/s]

Primary air volume flow rate

VPr [m³/h]

Primary air volume flow rate

VW [l/h]

Water flow rate – cooling/heating

V [l/h]

Volume flow rate

∆tW [K]

Temperature difference – water

∆pW [kPa]

Pressure drop, water side

∆pt [Pa]

Total pressure drop, air side

∆tPr = tPr - tR [K]

Difference between primary air temperature and room temperature

∆tRWV = tWV - tR [K]

Difference between water flow temperature and room temperature

∆tWm-Ref [K]

Difference between mean water temperature and reference temperature

LN [mm]

Nominal length

Mixed flow

The supply air is discharged from the diffuser into the space with a velocity between 2 and 5 m/s. The resulting air jet mixes with the room air, ventilating the entire space. Mixed flow systems typically provide a uniform temperature distribution and air quality within the space. The originally high velocity of the turbulent air jet decreases rapidly due to the high induction levels of mixed flow systems.

Heat exchanger

The maximum water-side operating pressure for all heat exchangers is 6 bar.

The maximum water flow temperature (heating circuit) for all heat exchangers is 75 °C; if flexible hoses are used, the water flow temperature should not exceed 55 °C. Units for other pressures and temperatures are available on request.

The water flow temperature (cooling circuit) should be at least 16 °C such that it does not permanently fall below the dew point. For units with a condensate drip tray the water flow temperature may be reduced to 15 °C.

Heat exchanger as 2-pipe system

Air-water systems with a 2-pipe heat exchanger may be used for either heating or cooling. In changeover mode it is possible to use all units within a water circuit exclusively for cooling in summer and exclusively for heating in winter.

Heat exchanger as 4-pipe system

Air-water systems with a 4-pipe heat exchanger may be used for both heating and cooling. Depending on the season, i.e. especially in spring and autumn, it may be possible that an office has to be heated in the morning and cooled in the afternoon.

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