RKE BF

>50%

rowred

Heat recovery units

WITH FREE COOLING, HIGHT EFFICIENCY FILTERS AND INTEGRATED CONTROL

from 400 to 5.000 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 model 10 and 20 mm for other models.
High efficiency aluminium plated heat recovery, Eurovent certified, of static type with aluminium plate, and airflows separated by special seals.
The by-pass is made with a motorized system that maintains a constant air flow both in normal operation and in the free-cooling.
High efficiency air filters combined into 7 versions.
Supply and exhaust double inlet centrifugal fans with forward-curved blades, directly coupled to EC brushless motors with high efficiency and electronic speed control.
The unit is complete with aluminium drip tray with drain on the bottom.
The integrated control is able to manage:

  • the automatic heating / cooling / free-cooling function (2/4 pipe installation);
  • antifreeze function;
  • electric heater(s) function(s) (on/off switch);
  • winter mode;
  • heat exchanger defrost;
  • fan speed manual or automatic switching;
  • dirty filter alarm;
  • the chronothermostat.
  • 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

    External hood with wire mesh

    CFA

  • Humidification/adiabatic cooling section 

    HCP

    Solenoid valve

    VSA

    Supports H=180 mm

    PD2

    3 way valve with actuator 

    V33

    On/off damper actuator

    SSE

    Room hygrostat

    HAS

    Ductable hygrostat

    HCS

    Differential pressure transducer

    DPS

    Duct-type CO2 transducer

    AQS

RKE BF

 

 

10

14

19

30

40

60

Airflow

Nom

m³/h

750

1100

1600

2600

3400

4800

Max

1400

1600

2200

3300

4200

5000

Min

400

600

700

1300

2000

3500

1m sound pressure level

Nom

dB(A)

55

55

54

52

54

51

Max

54

55

53

52

54

50

Min

55

55

55

53

53

53

Nom motor power

 

W

2 x 310

2 x 560

2 x 560

2 x 560

2 x 920

2 x 920

Maximum total current

 

A

2 x 3,2

2 x 5,1

2 x 5,1

2 x 4,8

2 x 7,2

2 x 7,4

Max. total power absorbed

 

kW

2 x 0,75

2 x 1,2

2 x 1,2

2 x 1,15

2 x 1,75

2 x 1,75

Specific fan power

 

W/(m³/s)

1894

1997

1556

1452

1126

1072

2009/125/EC ErP Compliance

 

2015

2015

2015

2015

2015

2015

Min degree of Protection

 

IP 54

IP 54

IP 54

IP 54

IP 54

IP 54

Min temperature class

 

F

F

F

F

F

F

Power supply

 

V-Ph-Hz

230-1-50

 

Efficiency (1)

Nom

%

55,9

50,7

50,1

53,5

53,5

53,7

Max

51,4

48,5

48,2

52,0

52,2

53,4

Min

60,2

54,2

54,9

57,9

56,9

55,7

Recovered power (1)

Nom

kW

3,50

4,60

6,70

11,6

15,1

21,4

Max

6,00

6,40

8,80

14,3

18,2

22,2

Min

2,00

2,70

3,20

6,30

9,50

16,2

Supply temperature (1)

Nom

°C

7,7

6,5

6,4

7,1

7,1

7,2

Max

6,7

6

5,9

6,8

6,8

7,1

Min

8,7

7,3

7,4

8,1

7,9

7,6

Efficiency class according to UNI EN 13053

Nom

H4

H5

H5

H5

H5

H5

SAF water cooling section (2)

 

 

 

 

 

 

 

 

Rows

 

 

3

3

3

3

3

3

Air pressure drop

Nom

Pa

45

56

64

61

64

49

Total cooling capacity

Nom

kW

5,20

7,20

9,90

17,0

22,2

30,7

Sensible supply cooling capacity

Nom

kW

3,12

4,32

5,94

10,2

13,3

17,2

Supply temperature

Nom

°C

20,3

21,1

21,4

20,8

20,9

18,4

Water flow rate

Nom

m³/h

0,89

1,24

1,70

2,92

3,82

5,25

Water side pressure drop

Nom

kPa

13

7

9

23

26

13

SKW (3) water post-heating coil

 

 

 

 

 

 

 

 

Rows

 

 

3

3

3

3

3

3

Air pressure drop

Nom

Pa

42

43

65

61

69

78

Heating capacity

Nom

kW

8,40

12,8

16,8

27,8

36,0

46,8

Supply temperature

Nom

°C

37,4

36,8

33,7

35,0

34,7

30

Water flow rate

Nom

m³/h

0,72

1,10

1,44

2,39

3,10

4,12

Water side pressure drop

Nom

kPa

12

31

23

22

44

20

SKE electric heater for pre- or post-heating

 

 

 

 

 

 

 

Stages

 

 

1

1

1

1

1

1

Heating capacity

Nom

kW

4,50

6,00

9,00

12,0

12,0

24,0

ΔT air side

Nom

°C

17,6

16,0

16,5

13,6

10,4

14,7

Pressure drop

Nom

Pa

6

6

8

8

8

11

Power supply

V-Ph-Hz

400-3+N-50

(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 BF

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)

10

79

77

80

76

76

76

73

69

86

82

68

56

51

65

53

48

55

43

38

14

80

79

82

77

77

78

76

70

87

84

70

58

53

66

54

49

55

43

38

19

78

79

82

76

78

78

75

68

87

84

69

58

53

65

54

49

54

43

38

30

85

81

84

74

76

76

76

72

89

83

68

57

52

64

53

48

53

42

37

40

77

77

84

74

76

76

78

69

87

84

69

58

53

64

53

48

53

42

37

60

99

90

86

83

82

78

79

71

100

87

71

61

56

68

58

53

58

48

43

RKE BF

10

14

19

30

40

60

A

mm

1150

1350

1450

1700

1700

1900

B

mm

860

900

900

1230

1230

1450

C

mm

385

410

470

530

630

755

D

mm

230

230

280

305

405

530

Ø

 

¾”

¾”

¾”

¾”

¾”

1”

E

mm

245

241

241

308

308

379 (334)

F

mm

238

224

284

331

377

419 (379)

G

mm

225

241

241

323

323

379

H

mm

218

270

270

297

297

350 (403)

H1

mm

267

267

327

387

487

615

L

mm

240

240

240

339

339

403 (350)

L1

mm

330

337

337

502

502

615

M

mm

— (81)

— (81)

— (81)

— (101)

— (101)

— (101)

Weight

kg

68

91

99

155

179

273

O

mm

430

450

450

615

615

725

P

mm

400

700

700

700

800

900

Q

mm

450

480

480

650

650

757

R

mm

310

310

410

410

510

610

T

mm

330

330

330

500

500

600

U

mm

120

120

120

120

120

120

d

(”)

¾”

¾”

¾”

1”

1”

1 ½”

RKE BF  

LC2

Manual selection of 3 speed

 

Automatic/manual selection of speed

 

EC fans management

 

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

 

ON-OFF electric heater management

SKE

Filter pressure switch management

 

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 humidification

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

 
Click here

Contact form

RKE BF