RKE

>50%

rowred

Heat recovery unit
from 50 to 6.800 m³/h

Sheet metal supporting frame and double shell curtain panels externally pre-painted, fully removable with 10 mm thick internal thermal and acoustic insulation for models RKE 03-06-10 and 20 mm for the other models.
High efficiency aluminium plated heat recovery, Eurovent certified, of static type with aluminium plate, and airflows separated by special seals.
G4 efficiency class air filters, easily removable from every side (bottom, side, top) allowing their periodic cleaning; as an option, M6-F7-F8 efficiency class filters are available.
Supply and exhaust centrifugal double suction fans, with electric motor directly coupled for more speeds, mounted on special supports.
The unit is supplied complete with terminal plate with relay card to allow for a simple electrical connection and control of the fans; the condensate drain pan in aluminium has the discharge towards the bottom of the unit.

  • Round adapter for circular duct

    BCC

    Internal water heating coil

    SKW

    Pre or post electric heater

    SKE

    Water cooling/heating section 

    SAF

    Direct expansion section

    SED

    Adjusting damper

    SKR

    Flexible connection

    GAT

    3 damper mixing box section 

    MS3

    Damper connection lever

    LCS

    Roof cover

    TPR

    Class M6 compact filter

    FC6

    Class F7 compact filter

    FC7

    Class F8 compact filter

    FC8

    Class M6 soft bag filter

    FT6

    Class F7 soft bag filter

    FT7

    Class F8 soft bag filter

    FT8

    Brushless EC fan motor

    DDB

    Fan speed control for EC fan motor 

    RDE

    External hood with wire mesh

    CFA

  • Humidification/adiabatic cooling section 

    HCP

    Solenoid valve

    VSA

    External by-pass for free-cooling

    CDM

    Supports H=180 mm

    PD2

    3 step fan speed control

    CVU

    Control panel

    PCR

    Remote temperature sensor for PCR

    NTC

    Electronic control

    LCE

    3 way valve with actuator 

    V33

    Multifunction electronic control

    LC2

    Continuous modulation of speed

    MCV

    Filters differential pressure switch

    PSTD

    On/off damper actuator

    SSE

    Room hygrostat

    HAS

    Ductable hygrostat

    HCS

    Antifreeze thermostat

    TEG

    Differential pressure transducer

    DPS

    Duct-type CO2 transducer

    AQS

    Air quality control system

    KAQ

RKE

 

03

06

10

14

19

25

30

40

50

60

Airflow

Max

m³/h

300

500

930

1400

1900

2500

3200

4000

5000

6000

Med

200

300

750

1200

1400

1700

2600

Min

100

150

600

850

1000

1150

2100

3000

4000

5000

Static pressure

Max

Pa

163

121

111

129

125

120

114

120

99

188

Med

184

136

125

100

97

56

110

Min

167

144

90

91

82

46

49

105

139

208

1m sound pressure level

Max

dB(A)

51

51

65

65

58

56

59

62

64

64

Med

50

47

61

63

54

51

53

Min

44

41

58

61

42

45

51

55

59

62

Nom motor power

 

W

2 x 60

2 x 60

2 x 147

2 x 420

2 x 420

2 x 420

2 x 550

2 x 750

2 x 1500

2 x 1500

Maximum total current

 

A

2 x 0,70

2 x 0,70

2 x 1,40

2 x 2,80

2 x 3,20

2 x 3,80

2 x 5,20

2x 3,30

2 x 5,60

2 x 5,40

Max. total power absorbed

 

kW

2 x 0,22

2 x 0,22

2 x 0,27

2 x 0,52

2 x 0,80

2 x 0,80

2 x 1,20

2 x 1,89

2 x 3,62

2 x 3,86

Specific fan power

 

W/(m³/s)

1376

1019

754

925

1110

922

1170

1133

1428

1594

2009/125/EC ErP Compliance

 

Free

Free

2015

2015

2015

2015

2015

2015

2015

2015

Fan speed

 

3

3

3

3

3

3

3

2

2

2

Min degree of Protection

 

IP 32

IP 32

IP 44

IP 44

IP 44

IP 44

IP 44

IP 55

IP 55

IP 20

Min temperature class

 

B

B

F

F

F

F

F

F

F

F

Power supply

 

V-Ph-Hz

230-1-50

400-3+N-50

Efficiency (1)

Max

%

53,3

58,7

57,0

51,2

50,3

55,5

53,9

54,9

53,8

53,1

Med

55,7

62,2

58

52,1

52,1

57,9

55,2

Min

59,6

66,8

58,8

54,1

54

60,3

56,6

56,7

55,3

54,3

Recovered power (1)

Max

kW

1,30

2,40

4,40

6,00

7,90

11,5

14,3

18,2

22,4

26,5

Med

0,90

1,60

3,90

5,20

6,10

8,20

11,9

Min

0,50

0,80

3,50

3,80

4,50

5,80

9,90

14,1

18,4

22,6

Supply temperature (1)

Max

°C

7,1

8,3

7,9

6,6

6,4

7,6

7,2

7,4

7,2

7,1

Med

7,6

9,1

8,2

6,8

6,8

8,1

7,5

Min

8,5

10,1

8,3

7,3

7,3

8,7

7,8

7,9

7,5

7,3

Efficiency class according to UNI EN 13053

Max

H5

H4

H4

H5

H5

H5

H5

H5

H5

H5

SAF water cooling section (2)

 

 

 

 

 

 

 

 

 

 

 

 

Rows

 

 

3

3

3

3

3

3

3

3

3

3

Air pressure drop

Max

Pa

43

59

63

81

83

64

84

84

66

69

Total cooling capacity

Max

kW

2,30

3,10

5,70

8,20

10,8

16,5

19,2

24,0

27,9

28,2

Sensible supply cooling capacity

Max

kW

1,38

1,86

3,42

4,92

6,48

9,9

11,5

14,4

16,7

16,9

Supply temperature

Max

°C

19,5

20,9

20,9

21,7

21,9

20,6

21,5

21,3

21,3

21,3

Water flow rate

Max

m³/h

0,40

0,53

0,98

1,41

1,86

2,84

3,3

4,13

4,8

4,85

Water side pressure drop

Max

kPa

6

11

15

9

10

22

29

30

27

24

SKW water post-heating coil (3)

 

 

 

 

 

 

 

 

 

 

 

 

Rows

 

 

3

3

3

3

3

3

3

3

Air pressure drop

Max

Pa

58

63

85

62

85

90

94

111

Heating capacity

Max

kW

9,60

14,9

18,6

26,9

31,5

39,5

46,7

53,8

Flow temperature

Max

°C

35,1

34,3

32

35,6

33

33,2

28,8

27,9

Water flow rate

Max

m³/h

0,83

1,28

1,60

2,31

2,71

3,40

4,02

4,63

Water side pressure drop

Max

kPa

15

41

28

21

29

53

23

26

SKE electric heater for pre- or post-heating

Stages

 

 

1

1

1

1

1

1

1

1

1

1

Heating capacity

Max

kW

2,00

4,00

4,50

6,00

9,00

12,0

12,0

12,0

18,0

24,0

ΔT air side

Max

°C

19,6

23,5

14,2

12,6

13,9

14,1

11,0

8,8

10,6

11,8

Pressure drop

Max

Pa

5

5

8

8

11

7

10

11

13

15

Power supply

V-Ph-Hz

230-1-50

400-3+N-50

High efficiency filters

 

 

 

 

 

 

 

 

 

 

 

 

FC6 Pressure drop

Max

Pa

26

45

51

43

50

47

38

34

FC7 Pressure drop

Max

Pa

92

144

161

135

159

160

152

153

FC8 Pressure drop

Max

Pa

126

198

221

186

219

220

210

211

FT6 Pressure drop

Max

Pa

145

170

162

172

189

175

179

FT7 Pressure drop

Max

Pa

171

199

191

197

229

205

185

FT8 Pressure drop

Max

Pa

214

239

230

238

260

248

225

(1) External air Winter – 5°C, 80% RH ambient air at 20°C, 50% RH, Summer 32°C 50% RH, ambient air 26°C 50% RH
(2) Air outlet conditions of the recovery system, inlet water 7°C, outlet 12°C
(3) Air outlet conditions of the recovery system, inlet water 70°C, outlet 60°C

The table lists the sound power values (SWL) in octave bands and totals; it also indicates the values of sound pressure level (SPL) at 1 m, 5 m and 10 m at supply, return and at the outside of the unit. All values refer to the operation of the ducted unit at FULL speed and at the nominal flow rate.

RKE

SWL [dB] octave band [Hz]

SWL

SPL Supply

SPL Return

SPL Outside

1 m

5 m

10 m

1 m

5 m

10 m

1 m

5 m

10 m

63

125

250

500

1000

2000

4000

8000

dB

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

dB(A)

03

78,6

79,4

77,6

69

70,4

71,4

66,9

62,2

84

77

63

52

46

60

49

43

51

40

34

06

78,6

79,4

77,6

69

70,4

71,4

66,9

62,2

84

77

63

52

46

60

49

43

51

40

34

10

72,4

78,9

75,9

71,1

72,8

73,7

71,7

69

83

79

65

53

48

62

50

45

52

40

35

14

94,1

86,9

92,4

85,6

80,9

81,8

82,7

78,2

98

90

76

64

59

73

61

56

62

50

45

19

90,7

82,9

90,1

79,4

78,6

79,5

79,3

75,5

94

87

72

61

56

69

58

53

58

47

42

25

93,1

85,9

87,2

77,4

76,5

76,6

73,8

69,1

95

84

69

58

53

66

55

50

56

45

40

30

103

83,2

88,7

78,6

80

79,9

77,6

72,6

104

87

72

61

56

69

58

53

59

48

43

40

95,4

89

92,5

87,7

81,5

82,6

83,5

79

99

91

76

65

60

72

61

56

62

51

46

50

110

89,9

93,6

84,2

84,1

84,5

82,8

78,5

110

92

76

66

61

73

63

58

64

54

49

60

111

90,9

94,6

85,2

85,1

85,5

83,8

79,5

111

93

77

67

62

74

64

59

65

55

50

RKE

 

03

06

10

14

19

25

30

40

50

60

A

mm

990

990

1150

1350

1450

1700

1700

1700

1700

1900

B

mm

750

750

860

900

900

1230

1230

1230

1350

1450

C

mm

270

270

385

410

470

490

530

630

705

755

D

mm

230

230

280

305

305

405

480

530

Ø

 

¾”

¾”

¾”

¾”

¾”

¾”

1”

1”

E

mm

150

195

245

241

241

323

308

308

353 (278)

379 (334)

F

mm

170

170

238

224

284

290

331

377

427 (353)

419 (379)

G

mm

197

197

225

241

241

323

323

323

353

379

H

mm

100

100

218

270

270

270

297

297

297 (339)

350 (403)

H1

mm

153

153

267

267

327

347

387

487

555

615

L

mm

162

162

240

240

240

306

339

339

339 (297)

403 (350)

L1

mm

275

275

330

337

337

502

502

502

555

615

M

mm

— (119)

— (119)

— (81)

— (81)

— (81)

— (131)

— (101)

— (101)

— (101)

— (101)

Weight

kg

39

41

68

91

99

140

155

179

235

273

O

mm

375

375

430

450

450

615

615

615

675

725

P

mm

400

400

400

700

700

700

700

800

850

900

Q

mm

450

480

480

650

650

650

707

757

R

mm

210

210

310

310

410

410

410

510

610

610

S

mm

75

75

75

75

100

150

150

150

175

200

T

mm

280

280

330

330

330

500

500

500

600

600

U

mm

60

60

60

60

60

60

60

95

95

95

d

(”)

¾”

¾”

¾”

¾”

¾”

1”

1”

1”

1 ½”

1 ½”

RKH

CVU

PCR

LCE

LC2

Manual selection of 3 speed

Automatic/manual selection of speed

Modulating fan management

MCV

EC fans management

DDB

Manual ON-OFF

Cool/change over valve management

SAF+V33

Heat valve management

SKW+V33

Cold/change over pump management

SAF

Heat pump management

SKW

Direct expansion coil management (0..10V)

SED

Defrost recovery management

Water coil anti-freeze management

Antifreeze thermostat management

TEG+SKR+SSE

ON-OFF electric heater management

SKE

Remote probe management

NTC

Filter pressure switch management

PSTD

Management of ventilation with CO2 probe

AQS

Management of ventilation with one or two pressure sensors

DPS

Free-cooling damper management

CDM

Management of mixing chamber

MS3

Management of mixing chamber with CO2 probe

AQS+MS3

Management of motorized dampers

SKR+SSE

Management of motorized dampers

HCS+HCP+VSA

HAS+HCP+VSA

Management of Boost by keyboard

Management of adiabatic cooling

HCP+VSA

Alarms management

Post ventilation

Weekly programming

Remote ON-OFF

Digital input for PIR occupancy

Digital input for fire alarm

Mode change (hot/cold) from digital input

Minimum thermal hot water temperature

Remote display with internal sensor

BMS Modbus RS485 protocol

Reference diagram
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Contact form

RKE