HRH

>70%

rowred

High efficiency heat recovery units

WITH HIGH EFFICIENCY HEAT RECOUPERATOR

from 300 to 4.300 m³/h

The HRH units have been designed for non-residential applications for which a forced and mechanical air change-over is requested. In accordance with the new EU 1253/2014 norm, they are equipped with a high efficiency counter-flow plate heat recovery unit (in dry conditions, superior to the minimum efficiency prescribed by the law of 67%), with filters with extremely low pressure drops (F7 on fresh air and M5 on room air exhaust, efficiency calculated according to EN 779:2012) and with backward-curved blades fans, directly coupled with EC motors, guaranteeing power absorptions well below the limits indicated by the norm.

The casing is made with double skin panels, with 25mm thick rockwool insulation with fire reaction class A2S1d0; external panels are in prepainted steel, internal panels in galvanized steel.
Integrated by-pass system with actuator, for free-cooling operations.
Access to fans and filters sections is ensured by doors with hinges and locking devices; additional access is given to the filters thanks to lift-off panels.
The units are complete with an electronic control box for the setting of the ventilation and temperature, monitoring of the status of the filters, week programming, defrost management and anti-freeze device for the additional water coil module.

  • Electric heater for PRE or POST heating

    SKE

    External module with water coil (change-over use)

    CCS

    External module with R410A direct expansion coil

    CDX

    Face/top/bottom air damper (only with PLM)

    SKR1

    Side air damper (only with PLM)

    SKR2

    ON/OFF damper actuator

    SSE

    Modulating 3-way valve with actuator

    V33

    Filters differential pressure switch

    PSTD

    Differential pressure transducer

    DPS

    Ductable CO2 probe

    AQS

    Roof cover for base unit (horizontal versions)

    TPR-H

    Roof cover for base unit (vertical versions)

    TPR-V

    Roof cover for CCS module (horizontal versions)

    TPR-CH

    Roof cover for CCS module (vertical versions)

    TPR-CV

    Flexible connection – upper/lower (only with PLM)

    GAT 1

    Flexible connection – side (only with PLM)

    GAT 2

    Round adapter for circular ducts – upper/lower (only with PLM)

    BCC 1

    Round adapter for circular ducts – side (only with PLM)

    BCC 2

    Plenum with multiple connections

    PLM

HRH

 

 

05

10

15

20

30

40

Airflow rate

Nom

m³/h

450

800

1300

1900

2800

3800

m³/s

0,125

0,222

0,361

0,528

0,778

0,056

External static pressure (1)

Nom

Pa

200

160

250

170

190

175

1m sound pressure level

Nom

dB(A)

53

53

54

60

61

60

Overall power input

Nom

W

330

340

920

930

1820

1920

Max

340

340

920

930

2000

2000

Overall input current

Nom

A

2,7

2,9

6,0

6,0

3,2

3,4

Max

2,8

2,9

36,3

22,6

26,9

24,8

Power supply

V-Ph-Hz

230-1-50

400-3+N-50

Fan speed control

0÷10 V

External leakage

max 3,5 @ -400 Pa (EN 13141-7)

Internal leakage

max 5,5 @ +250 Pa (EN 13141-7)

Yearly filter energy consumption

kWh

476

719

1332

2065

2482

3259

Recovery efficiency (2)

%

86,5

83,4

83,7

84,1

83,4

83,2

Recovery capacity (2)

 

kW

3520

6040

9840

14450

21120

28600

Supply temperature (2)

°C

16,3

15,5

15,6

15,7

15,5

15,5

CONFORMITY TO EU 1253/2014

 

Recovery efficiency (3)

%

79,0

76,0

76,2

76,5

76,0

75,8

Efficiency bonus

W/m³/s

360

270

276

285

270

264

Filter correction factor

0

0

0

0

0

0

SFP int limit

W/m³/s

1541

1437

1422

1406

1353

1306

Total internal air pressure drop (3)

Pa

725

755

693

645

762

761

Overall fan static efficiency (4)

 

%

47,3

55,6

48,8

46,0

56,4

58,3

SFP int

W/m³/s

1533

1359

1420

1405

1351

1305

WORKING LIMITS

 

 

 

 

 

 

 

 

Air temperature

°C

-20 ÷ 45

Air relative humidity

%

10 ÷ 95

Working environment

Not explosive, not corrosive, not chlorinated, not saline

SKE

 

 

 

 

 

 

 

 

Capacity

kW

1,5

2,5

4,0

5,0

7,5

10,5

ΔT (5)

 

°C

9,8

9,2

9,0

7,7

7,9

8,1

Air pressure drop (5)

 

Pa

5

6

10

10

11

12

Power supply

V-Ph-Hz

230-1-50

400-3-50

CCS

 

 

 

 

 

 

 

 

Cooling capacity (6)

totale

kW

2,46

4,47

6,83

10,62

16,14

20,68

sensibile

1,35

2,41

3,76

5,84

8,72

11,37

Heating capacity (7)

 

kW

3,30

5,86

9,34

14,03

20,83

27,50

Water flow rate (6)

l/h

432

756

1188

1836

2772

3564

Water pressure drop (6)

kPa

12

18

9

13

19

15

Air pressure drop (6)

Pa

51

53

54

50

50

55

Weight

 

kg

28

31

35

42

52

58

BCC

 

 

Nominal connection diameter

 

mm

250

315

315

400

500

500

Connection strip

mm

100

100

100

100

100

100

Nominal air pressure drop

Pa

7

7

16

10

9

16

(1) Fresh air/supply air circuit
(2) At wet conditions: outside air temperature –7°C 80% RH, room air temperature 20°C 55% RH
(3) At dry conditions: outside air temperature 5°C, room air temperature 25°C
(4) Including motor & speed controller efficiency
(5) At nominal airflow rate
(6) Air inlet condition 28,0°C 60% RH; in/out water temperature 7°/12°C
(7) Air inlet condition 13°C; in/out water temperature 45°/40°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.

HRH

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)

05

62

59

65

65

63

63

62

53

72

69

61

47

41

53

39

33

44

30

24

10

61

58

64

64

62

62

61

53

71

68

60

47

41

53

39

33

44

30

24

15

60

59

65

65

63

63

63

55

72

70

61

48

42

54

40

32

45

31

25

20

66

64

74

73

69

68

68

67

79

76

68

54

48

60

46

40

51

37

31

30

69

66

74

76

72

71

67

67

80

77

69

55

49

61

47

41

52

38

32

40

68

69

72

73

69

70

66

65

79

76

68

54

48

60

46

40

51

37

31

HRH Horizontal

05

10

15

20

30

40

L

mm

1350

1470

1850

1850

2150

2150

W

mm

680

820

1030

1460

1460

1840

H

mm

330

370

455

455

590

590

W1

mm

760

900

1110

1540

1540

1920

X

mm

230

300

390

600

590

780

Y

mm

225

265

350

350

485

485

E

mm

52,5

52,5

52,5

52,5

52,5

52,5

F

mm

46

46

46

46

55

55

G

mm

128

130

158

170

170

170

D1

½” M

D2

mm

¾” M

¾” M

¾” M

¾” M

1″ M

1″ M

L1

mm

350

400

400

400

502

502

L2

mm

340

380

460

460

580

580

Weight

kg

85

105

175

230

290

360

HRH Vertical

05

10

15

20

30

40

L

mm

1350

1470

1850

1850

2150

2150

W

mm

330

370

455

455

590

590

H

mm

680

820

1030

1460

1460

1840

X

mm

230

300

390

600

590

780

Y

mm

225

265

350

350

485

485

E

mm

52,5

52,5

52,5

52,5

52,5

52,5

G

mm

128

130

158

170

170

170

F

mm

46

46

46

46

55

55

D1

mm

½” M

D2

mm

¾” M

¾” M

¾” M

¾” M

1″ M

1″ M

L1

mm

350

400

400

400

502

502

L2

mm

340

380

460

460

580

580

Weight

kg

85

105

175

230

290

360

HRH

Automatic / manual speed selection

EC fans management

Manual ON/OFF

Management of cold / change-over valve

CCS+V33

Management of hot valve

CCS+V33

0-10v control of direct expansion coil

CDX

Management of heat recouperator defrost

Management of water coil anti-freeze device

ON/OFF control of pre-heating battery

SKE

Modulating control of pre-heating battery

SKE

Management of free-cooling damper

Management of filters differential pressure switch

PSTD

Management of ventilation with CO2 probe

AQS

Management of ventilation with 1 pressure sensor

DPS

Management of ventilation with PIR occupancy detector

Management of motorized dampers

SKR+SSE

Management of Boost by keyboard

Alarms management

Post ventilation

Weekly programming

Remote ON/OFF

Fire alarm digital input

Mode change (heating/cooling) from digital input

Digital input for PIR occupancy

Remote display with built-in sensor

BMS Modbus protocol RS485

Reference diagram

Click here

Contact form

HRH