00136056_0
DID300B


00132715_0
Tested to VDI 6022


00137207_0
Eurovent certification


00137768_0
DID300B, water connections (2-pipe system shown)


00136077_0
DID300B without induced air grille


00136276_0
Side entry primary air spigot


00136056_0
00132715_0
00137207_0
00137768_0
00136077_0
00136276_0

DID300B

Active chilled beam with two-way air discharge, 300 mm nominal width, with horizontal heat exchanger

Active chilled beam for heating and cooling, with 2-pipe or 4-pipe heat exchanger, for integration with various ceiling systems

  • 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
  • Side entry or top entry primary air spigot
  • Removable induced air grille


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

Application

Application

  • Active chilled beams of Type DID300 B for the integration into various ceiling systems, preferably for room heights up to 4.00 m
  • Shallow construction of only 210 mm, hence suitable for low ceiling void spaces, e.g. in refurbishment projects
  • 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

  • Side entry or top entry primary air spigot
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • Internal nozzle plate with punched nozzles (non-combustible)
  • Water connections at the narrow side, Ø12 mm Cu pipe, either with plain tails or with external thread or union nut, G½", flat seal

Nominal sizes

  • 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000 mm (3000 mm only without additional casing)

Description

Variants

Heat exchanger

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


Nozzle variants

  • K: Small
  • 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 or top spigot
  • Water connection A1: G½" external thread and flat seal
  • Water connection A2: G½" union nut and flat seal

Accessories

  • Support angles for installation into linear beam grid ceilings

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
  • Four suspension points for on-site installation (by others)
  • Three nozzle variants to optimise induction based on demand
  • Optional additional casing for extract air, with a side spigot, either on the same or on the opposite side, or with a top spigot

Materials and surfaces

  • Casing, front frame, nozzle plate, and perforated induced air grille made of galvanised sheet steel
  • 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 horizontal 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 mm

Width

293 mm

Primary air spigot, diameter

123/158 mm

Primary air volume flow rate

3 – 43 l/s or 11 – 155 m³/h

Cooling capacity

Up to 1345 W

Heating capacity

Up to 1480 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 mode Heating mode
LN Primary air 2-pipe and 4-pipe systems 4-pipe system
LN VPr 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

K

3

11

55

<15

156

120

0.9

1.3

189

3.2

0.12

900

K

5

16

116

20

237

183

1.4

1.3

287

4.9

0.12

900

K

6

21

200

27

298

227

1.8

1.3

355

6.1

0.12

900

M

7

25

46

18

267

183

1.4

1.3

287

4.9

0.12

900

M

11

38

106

29

383

256

2.0

1.3

399

6.9

0.12

900

M

14

51

191

37

476

305

2.4

1.3

473

8.1

0.12

900

G

13

46

47

25

382

228

1.8

1.3

356

6.1

0.12

900

G

18

63

79

34

492

281

2.2

1.3

437

7.5

0.12

900

G

22

80

128

40

588

320

2.5

1.3

796

8.5

0.12

1200

K

4

15

55

<15

209

159

1.2

1.7

249

4.3

0.14

1200

K

6

22

117

24

319

245

1.9

1.7

383

6.6

0.14

1200

K

8

29

204

32

401

304

2.4

1.7

471

8.1

0.14

1200

M

9

33

43

20

346

235

1.8

1.7

367

6.3

0.14

1200

M

13

46

83

30

466

312

2.4

1.7

483

8.3

0.14

1200

M

18

65

166

39

605

387

3.0

1.7

595

10.2

0.14

1200

G

17

62

41

30

507

299

2.3

1.7

464

8.0

0.14

1200

G

21

75

60

36

593

341

2.7

1.7

527

9.1

0.14

1200

G

25

88

83

40

671

376

2.9

1.7

579

10.0

0.14

1500

K

5

18

49

<15

241

181

1.4

2.0

283

4.9

0.17

1500

K

8

27

110

26

385

295

2.3

2.0

457

7.9

0.17

1500

K

10

36

196

34

490

369

2.9

2.0

569

9.8

0.17

1500

M

12

42

43

23

432

292

2.3

2.0

453

7.8

0.17

1500

M

16

59

85

33

584

387

3.0

2.0

595

10.2

0.17

1500

M

21

76

141

40

707

453

3.5

2.0

692

11.9

0.17

1500

G

22

79

42

35

634

369

2.9

2.0

569

9.8

0.17

1500

G

24

88

52

38

693

399

3.1

2.0

612

10.5

0.17

1500

G

27

97

63

41

749

424

3.3

2.0

650

11.2

0.17

1800

K

6

21

46

16

272

201

1.6

2.3

315

5.4

0.20

1800

K

9

32

106

27

449

342

2.7

2.3

528

9.1

0.20

1800

K

12

43

192

36

574

430

3.4

2.3

659

11.3

0.20

1800

M

14

50

42

25

506

339

2.6

2.3

523

9.0

0.20

1800

M

19

68

78

34

667

439

3.4

2.3

672

11.6

0.20

1800

M

24

86

124

40

798

510

4.0

2.3

775

13.3

0.20

1800

G

26

95

41

38

751

432

3.4

2.3

662

11.4

0.20

1800

G

29

105

50

41

815

463

3.6

2.3

707

12.2

0.20

1800

G

22

80

30

33

645

377

2.9

2.3

580

10.0

0.20

2100

K

7

24

44

17

330

250

1.1

7.6

475

3.7

0.90

2100

K

11

38

109

30

588

460

2.0

7.6

865

6.8

0.90

2100

K

14

52

205

38

767

593

2.5

7.6

1105

8.6

0.90

2100

M

16

58

41

27

640

445

1.9

7.6

837

6.5

0.90

2100

M

22

79

76

35

853

588

2.5

7.6

1098

8.6

0.90

2100

M

28

100

122

42

1026

691

3.0

7.6

1282

10.0

0.90

2100

G

31

112

42

40

960

585

2.5

7.6

1092

8.5

0.90

2100

G

34

123

50

43

1039

627

2.7

7.6

1167

9.1

0.90

2100

G

37

134

60

45

1113

664

2.9

7.6

1234

9.6

0.90

2400

K

8

27

42

18

363

273

1.2

8.5

517

4.0

0.95

2400

K

12

43

107

31

658

514

2.2

8.5

962

7.5

0.95

2400

K

16

59

201

40

860

663

2.9

8.5

1232

9.6

0.95

2400

M

19

67

42

28

732

507

2.2

8.5

950

7.4

0.95

2400

M

24

87

71

36

934

642

2.8

8.5

1195

9.3

0.95

2400

M

30

107

107

41

1102

744

3.2

8.5

1376

10.8

0.95

2400

G

36

128

42

43

1086

657

2.8

8.5

1222

9.6

0.95

2400

G

30

108

30

39

933

571

2.5

8.5

1066

8.3

0.95

2700

K

9

31

44

20

419

315

1.4

9.4

596

4.7

1.00

2700

K

13

48

105

32

726

566

2.4

9.4

1056

8.3

1.00

2700

K

18

65

193

40

941

723

3.1

9.4

1340

10.5

1.00

2700

M

21

75

41

29

811

559

2.4

9.4

1045

8.2

1.00

2700

M

26

93

64

35

994

683

2.9

9.4

1267

9.9

1.00

2700

M

31

112

93

41

1159

783

3.4

9.4

1447

11.3

1.00

2700

G

40

145

42

45

1217

731

3.1

9.4

1354

10.6

1.00

2700

G

34

122

30

41

1044

635

2.7

9.4

1182

9.2

1.00

3000

K

10

34

43

20

451

337

1.4

10.2

637

5.0

1.10

3000

K

14

51

96

32

764

593

2.6

10.2

1107

8.7

1.10

3000

K

19

68

171

40

985

758

3.3

10.2

1401

11.0

1.10

3000

M

23

83

41

30

888

610

2.6

10.2

1137

8.9

1.10

3000

M

29

103

63

36

1090

745

3.2

10.2

1378

10.8

1.10

3000

M

34

123

90

41

1260

849

3.6

10.2

1562

12.2

1.10

3000

G

45

162

43

47

1345

802

3.4

10.2

1480

11.6

1.10

3000

G

38

136

30

43

1152

697

3.0

10.2

1293

10.1

1.10

① Nozzle variant ② Pressure drop ③ 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 (up to 1800 mm)

110 l/h

50 l/h

VW (from 2100 mm)

200 l/h

110 l/h


Active chilled beams of Type DID300B, with two-way air discharge, high thermal output, and of shallow construction.

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 a horizontal heat exchanger.

Three nozzle variants to optimise induction based on demand.

Special characteristics

  • Side entry or top entry primary air spigot
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • Internal nozzle plate with punched nozzles (non-combustible)
  • Water connections at the narrow side, Ø12 mm Cu pipe, either with plain tails or with external thread or union nut, G½", flat seal

Materials and surfaces

  • Casing, front frame, nozzle plate, and perforated induced air grille made of galvanised sheet steel
  • 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 mm
  • Width: 293 mm
  • Primary air spigot, diameter: 123/158 mm
  • Primary air volume flow rate: 3 – 43 l/s or 11 – 155 m³/h
  • Cooling capacity: up to 1345 W
  • Heating capacity: up to 1480 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.

00133794_0

 Type
DID300B       Active chilled beam

 Heat exchanger
2       2-pipe
4       4-pipe

 Nozzle variant
K       Small
M       Medium
G       Large

 Arrangement of casings and connections
       Top entry primary air spigot (V)
       Supply air
V-S
V-M
V-L
V-R


       Supply and extract air combination (A)
V-L-AR
V-R-AL


       Side entry primary air spigot (H)
       Supply air
H-SV
H-SH
H-LV
H-LH
H-MV
H-MH
H-RV
H-RH


       Supply and extract air combination (A)
H-LV-ARV
H-RV-ALV
H-LH-ARH
H-RH-ALH
H-LV-ARH
H-RV-ALH
H-LH-ARV
H-RH-ALV
       Note
       S = L = LN
       L left side, V front, M centre, R right side, H rear

 

       Note
       S = L = LN
       L left side, V front, M centre, R right side, H rear

 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
       L is up to 7 mm shorter than LN


       Supply and extract air combination
1150 – 1500 × 900
1450 – 1800 × 1200
1750 – 2100 × 1500
2050 – 2400 × 1800
2350 – 2700 ×   2100
2650 –   3000 × 2400
2950 – 3000 × 2700

 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

 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

DID300B-2-M-V-M/1000×900

Heat exchanger

2-pipe

Nozzle variant

Medium

Arrangement of casings and connections

Top entry primary air spigot (V)

Total length (diffuser face) × nominal length

1000 × 900 mm


DID300B-4-M-H-LV-ARV/1396×1200/P1-RAL9016/G3/VS

Heat exchanger

4-pipe

Nozzle variant

Medium

Arrangement of casings and connections

Supply and extract air combination (A)

Total length (diffuser face) × nominal length

1396 × 1200 mm

Exposed surface

RAL 9016

Surface of heat exchanger

Black (RAL 9005)

Valves and actuators

With


 

Dimensions and weight, Supply and extract air combination

  • Dimensions and weight
  • Supply and extract air combination

Supply air

Variant LN L1 LH LL LR
Variant LN min max LH min max min max

V-S, H-SV, H-SH

900

893

900

800

40

43

54

58

V-S, H-SV, H-SH

1200

1193

1200

1100

40

43

54

58

V-S, H-SV, H-SH

1500

1493

1500

1400

40

43

54

58

V-S, H-SV, H-SH

1800

1793

1800

1700

40

43

54

58

V-S, H-SV, H-SH

2100

2093

2100

2000

40

43

54

58

V-S, H-SV, H-SH

2400

2393

2400

2300

40

43

54

58

V-S, H-SV, H-SH

2700

2693

2700

2600

40

43

54

58

V-S, H-SV, H-SH

3000

2993

3000

2900

40

43

54

58

V-L, H-LV, H-LH

900

901

1500

800

43

43

58

658

V-L, H-LV, H-LH

1200

1201

1800

1100

43

43

58

658

V-L, H-LV, H-LH

1500

1501

2100

1400

43

43

58

658

V-L, H-LV, H-LH

1800

1801

2400

1700

43

43

58

658

V-L, H-LV, H-LH

2100

2101

2700

2000

43

43

58

658

V-L, H-LV, H-LH

2400

2401

3000

2300

43

43

58

658

V-L, H-LV, H-LH

2700

2701

3000

2600

43

43

58

658

V-M, H-MV, H-MH

900

901

1500

800

V-M, H-MV, H-MH

1200

1201

1800

1100

V-M, H-MV, H-MH

1500

1501

2100

1400

V-M, H-MV, H-MH

1800

1801

2400

1700

V-M, H-MV, H-MH

2100

2101

2700

2000

V-M, H-MV, H-MH

2400

2401

3000

2300

V-M, H-MV, H-MH

2700

2701

3000

2600

V-R, H-RV, H-RH

900

901

1500

800

43

643

58

58

V-R, H-RV, H-RH

1200

1201

1800

1100

43

643

58

58

V-R, H-RV, H-RH

1500

1501

2100

1400

43

643

58

58

V-R, H-RV, H-RH

1800

1801

2400

1700

43

643

58

58

V-R, H-RV, H-RH

2100

2101

2700

2000

43

643

58

58

V-R, H-RV, H-RH

2400

2401

3000

2300

43

643

58

58

V-R, H-RV, H-RH

2700

2701

3000

2600

43

643

58

58


Dimensions [mm]

LN ØD

900 – 1800

123

2100 – 3000

158


Weights

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

DID300B

kg/piece

11

14

18

21

25

28

32

35

Contained water (max.)

kg

0.9

1.2

1.5

1.8

2.1

2.4

2.7

3.0

Non-active section as extension: 8 kg/m

Top entry primary air spigot –1 kg/piece


Supply air and extract air

Variant LN L1 LH LL LR
Variant LN min max LH min max min max

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

900

1096

1500

800

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

1200

1396

1800

1100

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

1500

1696

2100

1400

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

1800

1996

2400

1700

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

2100

2296

2700

2000

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

2400

2596

3000

2300

43

43

253

658

V-L-AR, H-LV-ARV, H-LH-ARV, H-LV-ARH, H-LH-ARH

2700

2896

3300

2600

43

43

253

358

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

900

1095

1500

800

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

1200

1395

1800

1100

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

1500

1695

2100

1400

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

1800

1995

2400

1700

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

2100

2295

2700

2000

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

2400

2595

3000

2300

238

643

58

58

V-R-AL, H-RV-ALV, H-RH-ALV, H-RV-ALH, H-RH-ALH

2700

2895

3000

2600

238

343

58

58


Dimensions [mm]

LN ØD

900 – 1800

123

2100 – 3000

158


Weights

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

DID300B

kg/piece

11

14

18

21

25

28

32

35

Contained water (max.)

kg

0.9

1.2

1.5

1.8

2.1

2.4

2.7

3.0

Non-active section as extension: 8 kg/m

Side extract air spigot – 3 kg/piece

Top entry primary air spigot –1 kg/piece

Top extract air spigot – 1 kg/piece


Installation examples, Installation details, Basic information and nomenclature

  • Installation examples
  • Installation details
  • Basic information and nomenclature
Installation into grid ceilings 00131688_0


Installation and commissioning

  • Preferably for rooms with a clear height up to 4.00 m
  • Flush ceiling installation
  • Choice of side entry or top entry primary air spigot
  • Lengths from 893 to 3000 mm, and width of 293 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 for on-site installation (by others)
  • Heat exchangers are fitted with water flow and water return connections at the narrow side


Installation into linear beam grid ceilings

  • This is possible with the optional support angles (supplied separately)
  • No levelling required
  • To avoid too much load on the ceiling, the suspension points should be used


Installation into T-bar ceilings or continuous 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.

Downloads

informazioni di prodotto

certificati

Referenze

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