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High Efficiency heat recovery Unit Tangra EVB DEX
 

 

 
 
 

 

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Product description
 

 

Systems for energy saving ventilation and  heat recovery with heat pump incorporated module TANGRA EVB DEX,
are designed for ventilation and air conditioning of houses, offices, commercial buildings, restaurants and disco clubs.

 

 

 

EVB DEX  MODELS  
  
 

 

Model

Air flow V

B

H

L

L1

L2

b

h

f

[m³/h]

[mm]

[mm]

[mm

[mm]

[mm]

[mm]

[mm]

[mm]

EVB DEX-М  015

800÷1600

1500

650

2200

700

1500

300

400

125

EVB DEX-М  025

1500÷2500

1600

750

2300

750

1550

400

400

175
EVB DEX-М  035 2200÷3500 1700 1050 2600 800 1800 400 600 225
 

 

 

AERODYNAMIC CHARACTERISTICS
 


 

 

 
 

 

 

TECHNICAL SPECIFICATIONS
 

 

 

DEX-M 015

DEX-M 025

DEX-M 035

Maximum air flow

[m³/h]

1500

2500

 3500

Minimum air flow

[m³/h]

800

1500

 2200

External pressure at maximum air flow

[Pa]

300

300

 300

Nominal fan capacity

[kW]

2х0,45

2х1.00

 2х1.40

Nominal capacity of the compressor (s)

[kW]

3,00

4,00

 5,00

Nominal capacity of the electric heater (s)(anti-freeze protection)

[kW]

3.0+4.0

4.0+6.0

 6.0+7.5

Total capacity

[kW]

11,00

16,00

 21,50

Power supply

[ph/V/Hz]

3+N / 400 / 50

Room air temperature 22°C / relative humidity 30%; External air temperature -15°C / relative humidity 90%

Temperature of supply air

[°C]

22

22

 22

Efficiency of a plate heat recovery unit “air-air” REC

[%]

56.5

55,6  55,6

Recovered energy from REC

[kW]

11.06

18.15

 25.40

Heating capacity of heat pump

[kW]

6,60

11,60

 15,10

Total heating capacity (supply air)

[kW]

18,70

31,10

 43,50

Electric capacity

[kW]

7,25

11,30

 15,80

COPsystem  (1) at maximum air flow

 

2,58

2,76

 2,76

COPsystem (2) пat maximum air flow without fans

 

2,87

3,15

 3,20

Room air temperature 22°C / relative humidity 30%; External air temperature -5°C / relative humidity 90%

Temperature of supply air

[°C]

23,4

23,8

 23

Efficiency of a plate heat recovery unit “air-air” REC

[%]

57,1

56,2

 56,2

Recovered energy from REC

[kW]

8,02

13,18

 18,40

Heating capacity of heat pump

[kW]

6,60

11,60

 15,10

Total heating capacity (supply air)

[kW]

14,62

24,78

 33,50

Electric capacity

[kW]

2,49

4,07

 5,45

COPsystem  (1) at maximum air flow

 

5,87

6,09

 6,16

COPsystem  (2) at maximum air flow without fans

 

8,26

9,28

 10,33

Room air temperature 27°C / relative humidity 47%; External air temperature 35°C / relative humidity 40%

Temperature of supply air

[°C]

23,7

23,5

 24,2

Efficiency of a plate heat recovery unit “air-air” REC

[%]

62,6

54,5

 54,5

Recovered energy from REC

[kW]

2,25

3,26

 4,57

Cooling capacity of heat pump

[kW]

6,30

11,00

 13,80

Total cooling capacity (supply air)

[kW]

8,55

14,26

 18,37

Electric capacity

[kW]

2,82

4,70

 6,35

EER system (3) at maximum air flow

 

3,04

3,04

 2,90

EER system (4) пat maximum air flow without fans

 

4,08

4,33

 4,43

  

 
 

 

 

 

Applications
  • Single family houses
  • Flats/ Apartments
  • Schools and Universities
  • Offices
  • Hotels
  • Retail
  • Features

  • Plug and play
  • Antifreeze protection
  • Energy saving
  • Economical
  • TANGRA EVB HIE

    Maintaining the climat in premises, with minimum energy consumption is major factor in operation cost management of the buildings. High efficiency heat recovery installations provide fresh air supply  with temperature, similar to that  in the room. The need of additional heater is minimized.


    Product specifications

    TANGRA EVB CL

    Self supporting construction of galvanized steel, powder coated from outside. Internal acoustic and thermal insulation. Appropriate for indoor insulation, entirely visible or particularly incorporated in suspended ceiling.


    Product specifications

    TANGRA EVB ECO

    Monoblock construction for horizontal installation in false ceiling. Internal acoustic and thermal insulation; 25mm panels are on request. Suitable for whole-house ventilation installation.


    Product specifications

    TANGRA EVB TOP

    Self supporting construction with double panels of 25mm with acoustic and thermal insulation, made of galvanized steel and powder coated. Designed for vertical installation in basement, or technical rooms. Suitable for whole-house ventilation installation.


    Product specifications

    TANGRA EVB AL/AL+

    Maintaining the climat in premises, with minimum energy consumption is major factor in operation cost management
    of the buildings. Heat recovery installations provide a flow of fresh air with temperature, close to this in the room, using the
    heat of the exhuasted air.


    Product specifications

    Contact us

    174, Europe Blvd, Sofia, Bulgaria
    Phone
    +359 2 925 05 99
    +359 2 925 06 10
    E-mail
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