Type BID

Under floor induction unit in nominal lengths of 900 to 1500 mm, with horizontal heat exchanger

Underfloor induction unit with 2-pipe or 4-pipe heat exchanger for installation in raised floors

  • 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
  • Four nozzle variants to optimise induction based on demand
  • Levelling feet
  • Continuous linear arrangement if required


Optional equipment and accessories

  • Control equipment
  • Choice of walk-on floor grille from our portfolio
  • Heat exchanger powder-coated black
  • Powder coating in many different colours, e.g. RAL CLASSIC

BID with AFN 00136113_0


  • Application
  • Description

Application

  • Underfloor induction units of Type BID for installation in raised floors
  • Under floor induction units allow for floor-to-ceiling glazing
  • 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

  • Supply air discharge as inducing displacement flow
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • 4 levelling feet
  • Water connections at the narrow side, Ø12 mm Cu pipe, with plain tails or with G½" external thread, or with a G½" union nut; with flat seal

Nominal length

  • 900, 1050, 1200, 1350, 1500 mm

Variants

  • E: Single unit
  • B: Unit for continuous linear arrangement, i.e. open at the narrow sides


Heat exchanger

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


Nozzle variants

  • M: Medium
  • G: Large
  • U: Extra large
  • 2U: Two nozzle rows, extra large nozzles

Construction

  • Galvanised
  • P1: Powder-coated RAL 9005, black, or in any other RAL colour, gloss level 70 %

Attachments

  • 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
  • Choice of floor grille from our portfolio
  • X-AIRCONTROL control system

Construction features

  • Spigot is suitable for circular ducts to EN 1506 or EN 13180
  • Four nozzle variants to optimise induction based on demand
  • Recess for floor grille
  • Vent valves on the heat exchanger

Materials and surfaces

  • Casing, nozzle plate and primary air plenum made of galvanised sheet steel
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces either untreated or powder-coated in any RAL colour, e.g. RAL 9005, black
  • Heat exchanger also in black (RAL 9005)

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

Under floor induction units 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 (four variants are available).

As a result of this, secondary air (room air) is induced and passes through the heat exchanger.

Primary and secondary air mix and are then supplied to the room as an inducing displacement flow.

Nominal length

900, 1050, 1200, 1350, 1500 mm

Total length

1100 – 1849 mm

Height

191 mm

Width

403 mm

Primary air volume flow rate

4 – 40 l/s or 14 – 144 m³/h

Cooling capacity

Up to 1030 W

Heating capacity

Up to 1225 W

Max. operating pressure, water side

6 bar

Max. operating temperature, water side

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 Δpt LWA 2-pipe and 4-pipe systems 4-pipe system
LN VPr Ø98 mm Ø123 mm Ø98 mm Ø123 mm Qtot QWK ΔtW ΔpW QWH = Qtot ΔtW ΔpW
LN l/s m³/h Pa dB(A) W K kPa W K kPa

900

M

4

14

52

52

<20

<20

229

181

1.4

3.1

244

4.2

0.24

900

M

6

22

117

117

<20

<20

303

230

1.8

3.1

311

5.4

0.24

900

M

9

32

264

264

27

23

400

291

2.3

3.1

395

6.8

0.24

900

G

8

29

58

58

<20

<20

324

228

1.8

3.1

308

5.3

0.24

900

G

12

43

130

129

23

<20

435

290

2.3

3.1

394

6.8

0.24

900

G

17

61

262

260

33

28

560

355

2.8

3.1

483

8.3

0.24

900

U

15

54

64

63

22

<20

457

276

2.2

3.1

374

6.4

0.24

900

U

20

72

114

111

30

23

570

328

2.6

3.1

446

7.7

0.24

900

U

30

108

256

250

42

35

778

417

3.3

3.1

569

9.8

0.24

900

2U

23

83

43

40

34

20

540

263

2.1

3.1

310

5.3

0.24

900

2U

32

115

84

79

43

29

708

322

2.5

3.1

382

6.6

0.24

900

2U

41

148

138

126

50

36

867

373

2.9

3.1

445

7.7

0.24

1050

M

4

14

38

38

<20

<20

238

190

1.5

3.5

256

4.4

0.26

1050

M

8

29

151

151

20

<20

381

285

2.2

3.5

387

6.6

0.26

1050

M

11

40

285

285

29

25

474

341

2.7

3.5

468

8.0

0.26

1050

G

10

36

66

65

<20

<20

393

272

2.1

3.5

375

6.4

0.26

1050

G

15

54

148

146

27

21

526

345

2.7

3.5

466

8.0

0.26

1050

G

20

72

263

260

35

30

646

405

3.2

3.5

533

9.5

0.26

1050

U

15

54

47

46

20

<20

468

287

2.2

3.5

391

6.7

0.26

1050

U

25

90

131

126

35

27

691

389

3.0

3.5

513

9.0

0.26

1050

U

35

126

256

248

44

36

893

471

3.7

3.5

647

11.1

0.26

1050

2U

27

97

45

40

41

23

627

302

2.4

3.5

357

6.1

0.26

1050

2U

37

133

85

76

50

32

811

364

2.8

3.5

435

7.5

0.26

1050

2U

47

169

137

122

57

39

985

419

3.3

3.5

503

8.6

0.26

1200

M

5

18

45

45

<20

<20

286

226

1.8

3.8

306

5.3

0.29

1200

M

9

32

145

144

21

<20

425

317

2.5

3.8

431

7.4

0.29

1200

M

12

43

257

256

29

25

516

372

2.9

3.8

506

8.7

0.29

1200

G

10

36

50

49

<20

<20

403

282

2.2

3.8

383

6.6

0.29

1200

G

15

54

113

111

24

<20

538

357

2.8

3.8

486

8.4

0.29

1200

G

24

86

288

284

38

32

752

463

3.6

3.8

634

10.9

0.29

1200

U

16

58

41

40

21

<20

501

308

2.4

3.8

419

7.2

0.29

1200

U

24

86

93

89

32

23

682

392

3.1

3.8

535

9.2

0.29

1200

U

36

130

208

200

44

35

927

493

3.9

3.8

676

11.6

0.29

1200

2U

31

112

48

41

49

27

713

339

2.7

3.8

403

6.9

0.29

1200

2U

39

140

76

65

55

34

858

388

3.0

3.8

464

8.0

0.29

1200

2U

47

169

110

95

61

39

999

432

3.4

3.8

519

8.9

0.29

1350

M

5

18

35

35

<20

<20

295

234

1.8

4.2

317

5.5

0.31

1350

M

10

36

140

139

21

<20

468

348

2.7

4.2

473

8.1

0.31

1350

M

13

47

237

236

29

24

558

401

3.1

4.2

547

9.4

0.31

1350

G

10

36

39

39

<20

<20

412

292

2.3

4.2

396

6.8

0.31

1350

G

15

54

89

87

22

<20

550

369

2.9

4.2

502

8.6

0.31

1350

G

25

90

246

242

37

30

789

487

3.8

4.2

668

11.5

0.31

1350

U

17

61

38

36

22

<20

535

330

2.6

4.2

448

7.7

0.31

1350

U

25

90

80

76

33

23

715

413

3.2

4.2

564

9.7

0.31

1350

U

40

144

205

194

46

36

1018

536

4.2

4.2

736

12.7

0.31

1350

2U

35

126

51

42

57

32

797

375

2.9

4.2

448

7.7

0.31

1350

2U

41

148

70

58

61

36

905

411

3.2

4.2

493

8.5

0.31

1350

2U

47

169

91

76

65

40

1011

444

3.5

4.2

535

9.2

0.31

1500

M

6

22

41

40

<20

<20

341

269

2.1

4.5

365

6.3

0.33

1500

M

11

40

137

136

21

<20

510

378

3.0

4.5

515

8.9

0.33

1500

M

15

54

254

252

30

26

626

445

3.5

4.5

609

10.5

0.33

1500

G

14

50

63

61

<20

<20

534

365

2.9

4.5

497

8.5

0.33

1500

G

22

79

154

151

31

25

733

468

3.7

4.5

640

11.0

0.33

1500

G

28

101

250

244

38

32

868

531

4.1

4.5

729

12.5

0.33

1500

U

20

72

42

40

27

<20

614

372

2.9

4.5

507

8.7

0.33

1500

U

33

119

115

107

41

29

893

495

3.9

4.5

678

11.7

0.33

1500

U

40

144

169

158

46

35

1031

549

4.3

4.5

754

13

0.33

1500

2U

39

140

54

44

65

36

880

409

3.2

4.5

491

8.4

0.33

1500

2U

43

155

66

53

68

39

951

433

3.4

4.5

520

9.0

0.33

1500

2U

47

169

78

63

70

41

1022

455

3.6

4.5

549

9.4

0.33

① Nozzle variant ② Air-regenerated noise


Reference values

Parameter Cooling Heating

tR

26 °C

22 °C

tAN

24. °C

22 °C

tWV

16 °C

50 °C

VW

110 l/h

50 l/h

Δtpr = tpr – tR

–10 K

ΔtRWV = tWV – tR

–10 K

–28 K


Under floor induction units of Type BID, with one-way air discharge and high thermal output.

For installation in false floors. The units consist of a casing with primary air plenum, non-combustible nozzles, and a horizontal heat exchanger.

Four nozzle variants to optimise induction based on demand.

Special characteristics

  • Supply air discharge as inducing displacement flow
  • Horizontal heat exchanger as 2-pipe or 4-pipe system
  • 4 levelling feet
  • Water connections at the narrow side, Ø12 mm Cu pipe, with plain tails or with G½" external thread, or with a G½" union nut; with flat seal

Materials and surfaces

  • Casing, nozzle plate and primary air plenum made of galvanised sheet steel
  • Heat exchanger with copper tubes and aluminium fins
  • Exposed surfaces either untreated or powder-coated in any RAL colour, e.g. RAL 9005, black
  • Heat exchanger also in black (RAL 9005)

Construction

  • Galvanised
  • P1: Powder-coated RAL 9005, black, or in any other RAL colour, gloss level 70 %

Technical data

  • Nominal length: 900, 1050, 1200, 1350, 1500 mm
  • Total length: 1100 – 1849 mm
  • Height: 191 mm
  • Width: 403 mm
  • Primary air volume flow rate: 4 – 40 l/s or 14 – 144 m³/h
  • Cooling capacity: up to 1030 W
  • Heating capacity: up to 1225 W
  • Max. operating pressure: 6 bar
  • Max. operating temperature: 75 °C

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

00133466_0

 Type
BID       Underfloor induction unit

 Heat exchanger
2       2-pipe
4       4-pipe

 Nozzle variants
M       Medium
G       Large
U       Extra large
2U       2 rows, extra large

 Casing arrangement
R       Right side
L       Left side

 Unit variant
E       Single unit with perimeter frame
B       Unit for continuous linear arrangement, i.e. open at the narrow sides

 

 Total length (diffuser face) × nominal size [mm]
1100 – 1249 × 900
1250 – 1399 × 1050
1400 – 1549 × 1200
1550 – 1699 × 1350
1700 – 1849 × 1500

 Spigot diameter [mm]
98
123

 Water connection
       No entry: Ø12 mm pipe with plain tails
E00       Ø12 mm pipe with plain tails and vent valve
A00       With G½" external thread and flat seal
K00       With G½" external thread and flat seal and vent valve

 Surface of casing
       No entry: untreated, galvanised steel
P1       Powder-coated RAL 9005, black, gloss level 70 %

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

 Valves and actuators
       No entry: none
VS       With

BID–2–M–R–E/1350×1050×98

Heat exchanger

2-pipe

Nozzle variant

Medium

Casing arrangement

Right side

Unit variant

Single unit

Total length (diffuser face) × nominal length

1350 × 1050 mm

Spigot diameter

Ø98 mm

Water connections

Ø12 mm pipe, plain tails

Surface

Galvanised steel

Surface of heat exchanger

Untreated

Valves and actuators

Without


BID–4–U–L–E/1350×1050×123/A00/P1 RAL 9005/G3/VS

Heat exchanger

4-pipe

Nozzle variant

Extra large

Casing arrangement

Left side

Unit variant

Single unit

Total length (diffuser face) × nominal length

1350 × 1050 mm

Spigot diameter

Ø123 mm

Water connections

G½" external thread

Surface

P1 RAL 9005, black

Surface of heat exchanger

RAL 9005, black

Valves and actuators

With


 

Variants, Dimensions and weight

  • Variants
  • Dimensions and weight
BID 00106681_0.
① Grille

¹ØD: choice of Ø98 or Ø123
²Single unit with perimeter frame (shown: rotated by 90°)
³Unit for continuous linear arrangement, i.e. open at the narrow sides (shown: rotated by 90°)
*Lower edge of the casing to upper edge of the recess for the grille core


Dimensions [mm]

L1 LN A B

1100 – 1249

900

895

875

1250 – 1399

1050

1045

1025

1400 – 1549

1200

1195

1175

1550 – 1699

1350

1345

1325

1700 – 1849

1500

1495

1475


Weights

LN mm 900 1050 1200 1350 1500

L₁

mm

1100

1249

1250

1399

1400

1549

1550

1699

1700

1849

Unit

kg/piece

26

28

30

32

34

36

38

40

42

44

Contained water (max.)

kg

1.8

1.8

2.1

2.1

2.4

2.4

2.7

2.7

3

3

min L₁ = LN + 200 mm


Installation details, Basic information and nomenclature

  • Installation details
  • Basic information and nomenclature
Installation example 00106331_0.


Installation and commissioning

  • Installation in false floors
  • Side entry primary air spigot
  • Total length 1100 – 1849 mm, width 403 mm, height 191 mm
  • Installation and connections to be performed by others; fixing, connection and sealing material to be provided by others
  • The induction unit has 4 levelling feet
  • Heat exchangers are fitted with water flow and water return connections at the narrow side

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

Inducing displacement flow

The supply air is discharged near the external wall and with a medium velocity between 1.0 and 1.5 m/s. Due to the induction effect the supply air velocity is rapidly reduced such that, in cooling mode, the supply air displaces the room air over the entire floor area. The convection from people and other heat sources causes the fresh air from the pool to rise and create comfortable conditions in the occupied zone.

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