Type WL

For the reheating of airflows in circular ducting

Circular hot water heat exchanger for the reheating of airflows, suitable for VAV terminal units Type TVR and mechanical self-powered CAV controllers Type RN or VFC

  • For hot water up to 100 °C
  • Copper tubes arranged in two rows, with aluminium fins
  • Installation in horizontal or vertical ducts independent of airflow direction
  • Suitable for circular ducts to EN 1506 or EN 13180
  • With lip seal and inspection access
  • Maximum water-side operating pressure is 8 bar
  • Casing air leakage to EN 15727, class C

Heat exchanger Type WL 00132262_0


  • Application
  • Description

Application

  • Hot water heat exchanger Type WT for reheating the airflow in circular ducting
  • For VAV terminal units Type TVR and for CAV controllers Type RN or VFC
  • For hot water up to 100 °C

Nominal sizes

  • 100, 125, 160, 200, 250, 315, 400

Parts and characteristics

  • Ready-to-install heat exchanger
  • Copper tubes arranged in two rows
  • Lip seal
  • Inspection access
  • Tested for leakage

Construction features

  • Rectangular casing
  • Spigot with lip seal, for circular connecting ducts to EN 1506 or EN 13180
  • Maximum water-side operating pressure is 10 bar
  • Horizontal water connection
  • Plain copper tube ends for water connection

Materials and surfaces

  • Casing made of galvanised sheet steel
  • Copper tubes
  • Aluminium fins

Standards and guidelines

  • Casing air leakage to EN 15727, class C

Maintenance

  • Maintenance-free as construction and materials are not subject to wear

Technical information

Technical data, Quick sizing, Specification text, Order code, Produktbeziehungen

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

Nominal sizes

100 – 400 mm

Volume flow rate range

10 – 750 l/s or 36 – 2700 m³/h

Thermal output

0.25 – 18 kW

Maximum hot water temperature

100 °C

Maximum water-side operating pressure

10 bar

Water-side differential pressure

0.3 – 12 kPa

Static differential pressure

5 – 80 Pa


WL for TVR, RN and VFC

Nominal size V Δpst PWW 50/40, te = 16 °C PWW 70/55, te = 16 °C
Nominal size V Δpst Q ta w Δpv Q ta w Δpv
Nominal size l/s m³/h Pa kW °C kg/h kPa kW °C kg/h kPa

100

10

36

5

0.25

36.1

21

0.3

0.40

48.5

23

0.5

100

20

72

10

0.38

31.3

33

0.4

0.62

41.2

36

0.6

100

30

108

15

0.47

28.8

41

0.5

0.79

37.5

46

0.7

100

40

144

25

0.55

27.2

48

0.6

0.95

35.2

55

0.8

100

45

162

30

0.58

26.5

51

0.7

1.02

34.4

59

1.0

125

18

65

5

0.36

32.0

31

0.3

0.58

42.2

34

0.5

125

35

126

20

0.51

27.9

44

0.5

0.87

36.2

51

0.8

125

50

180

40

0.62

26.0

53

1.0

1.09

33.8

64

1.0

125

65

234

60

0.70

24.8

61

1.2

1.30

32.3

76

1.3

125

75

270

80

0.76

24.2

66

1.5

1.44

31.6

84

1.5

160

28

101

5

0.69

36.1

60

1.0

1.17

49.9

68

1.0

160

50

180

10

1.05

33.1

91

2.0

1.83

45.8

107

3.0

160

70

252

15

1.35

31.7

117

4.0

2.32

43.0

135

4.0

160

95

342

25

1.70

30.6

147

5.0

2.85

40.4

166

6.0

160

115

414

35

1.94

29.7

168

7.0

3.23

38.8

188

7.0

200

45

162

5

0.97

33.6

84

2.0

1.69

46.5

98

2.0

200

80

288

20

1.49

31.2

129

4.0

2.54

41.8

148

5.0

200

115

414

35

1.94

29.7

168

7.0

3.23

38.8

188

7.0

200

150

540

55

2.29

28.4

199

9.0

3.37

36.8

223

10.0

200

180

648

80

2.57

27.6

223

11.0

4.30

35.4

251

12.0

250

70

252

5

1.53

33.8

133

1.0

2.67

47.0

155

1.0

250

125

450

15

2.35

31.3

203

2.0

4.14

43.0

242

3.0

250

180

648

25

3.10

30.0

269

3.0

5.29

39.9

308

4.0

250

235

846

40

3.76

29.0

326

5.0

6.29

37.8

367

5.0

250

290

1044

60

4.29

28.1

372

6.0

7.20

36.2

420

7.0

315

115

414

5

2.50

33.7

217

1.0

4.41

47.2

257

1.0

315

200

720

15

3.82

31.5

331

2.0

6.66

43.1

388

3.0

315

285

1026

25

5.02

30.4

436

4.0

8.45

40.1

493

4.0

315

375

1350

40

6.05

29.1

525

5.0

10.11

37.9

589

6.0

315

460

1656

60

6.89

28.2

597

7.0

11.52

36.4

672

7.0

400

185

666

5

4.02

33.7

348

2.0

7.08

47.2

413

2.0

400

325

1170

15

6.24

31.6

542

3.0

10.55

42.4

615

4.0

400

465

1674

30

8.06

30.1

699

5.0

13.40

39.5

781

6.0

400

605

2178

50

9.54

28.8

827

7.0

15.89

37.4

927

8.0

400

750

2700

75

10.92

27.9

947

9.0

18.22

35.8

1062

10.0

Q:Thermal capacity

PWW:Pumped warm water heating system, flow temperature/return temperature

te:Inlet airflow temperature

ta:Outlet airflow temperature

w:Water flow rate

Δpv:Water-side differential pressure

Δpst:Static differential pressure


Circular hot water heat exchangers for reheating the airflow in air conditioning systems

Dimensions fit VAV terminal units TVR as well as CAV controllers RN and VFC.

Spigot with lip seal, for circular connecting ducts to EN 1506 or EN 13180.

Casing air leakage to EN 15727, class C.

Materials and surfaces

  • Casing made of galvanised sheet steel
  • Copper tubes
  • Aluminium fins

Technical data

  • Volume flow rate range: 10 to 750 l/s or 36 to 2700 m³/h
  • Thermal capacity: 0.25 – 18 kW
  • Maximum water temperature: 100 °C
  • Maximum water-side operating pressure: 10 bar
  • Water-side differential pressure: 0.3 – 12 kPa
  • Static differential pressure: 5 – 80 Pa

Sizing data

  • V _______________________ [m³/h]
  • te _______________________ [°C]
  • PWW _______________________ [°C]
  • Q _______________________ [kW]

00131883_0

 Type
WL       Hot water heat exchanger for VAV terminal units TVR and CAV controllers RN and VFC

 

 Nominal size [mm]
100
125
160
200
250
315
400

Order example: WL/160

Nominal size

160 mm


 

Dimensions and weight

  • Dimensions and weight
WL 00131269_0


WL

Nominal size
ØD
mm
L
mm
B3
mm
H3
mm
H1
mm
A
mm
ØD5
mm
m
kg
100 99 336 251 188 137 30 10 3.7
125 124 346 251 188 137 35 10 3.5
160 159 386 326 263 212 40 10 5.4
200 199 386 326 263 212 40 10 5.3
250 249 386 411 338 250 40 22 7.7
315 314 386 486 413 325 40 22 9.9
400 399 386 557 489 400 55 22 13.1


Installation details, Basic information and nomenclature

  • Installation details
  • Basic information and nomenclature

Installation and commissioning

  • Installation in horizontal or vertical ducts independent of airflow direction
  • Capacity control and supply connections to be provided by others
  • Venting and draining by others

Principal dimensions

ØD [mm]

Outer diameter of the spigot

L [mm]

Length of unit including connecting spigot

L₁ [mm]

Length of casing or acoustic cladding

B [mm]

Duct width

B₁ [mm]

Screw hole pitch of flange (horizontal)

B₂ [mm]

Outside dimension of flange (width)

B₃ [mm]

Width of device

H [mm]

Duct height

H₁ [mm]

Screw hole pitch of flange (vertical)

H₂ [mm]

Outside dimension of flange (height)

H₃ [mm]

Unit height

R ['']

Diameter of connecting threaded pipes

m [kg]

Unit weight including the minimum required attachments (e.g. Compact controller)

Nomenclature

V [m³/h] and [l/s]

Volume flow rate

Δpst [Pa]

Static differential pressure

Δpv [kPa]

Water-side differential pressure

Q [kW]

Thermal output

w [kg/h]

Water flow rate

PWW [°C]

Pumped hot water heating system, flow temperature/return temperature

te [°C]

Inlet airflow temperature

ta [°C]

Outlet airflow temperature

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Thank you for your message!

Visual contact Visual contact

Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +7 495 221-5161 | Fax: +7 495 221-5171