EVHRA-D Autonomous unit with heat recuperator efficiency > 90%

Description:

Active and passive heat recovery unit for the heating, cooling and air renewal of rooms, consisting of a one-piece structure including all components for correct operation: fans, cooling circuit with high efficiency compressors, air filtration sections and high efficiency counter-current heat recovery unit. The machine can work as a passive heat recovery unit and as an active thermodynamic heat recovery unit and it is particularly suitable for residential environments.

Use:

Houses, surgeries and shops for air exchange with up to 90% reduction in energy waste.

Characteristics:

Complete unit capable of providing fresh air and integrating the heating or cooling requirements of the rooms served. The unit comes complete with all components required for its operation and it is ready for use. High efficiency counter-current cross-flow polypropylene heat exchanger. Low freezing temperatures and operation down to -25°C. Backward-curved fans with direct-coupled Brushless motor.
The unit allows for the energy contained in the exhaust air to be recovered by means of a heat exchanger and cooling circuit, supplying it to the indoor environment. The heat recovery unit features two ePMl 70-80% filters on the supply and exhaust air with low pressure drops. Self-supporting frame with galvanised sheet metal sandwich panels, painted on the outside, with polystyrene insulation on the inside, internal cladding made of thick galvanised sheet metal.
Cooling circuit made of brazed copper complete with high efficiency compressor, filter drier, finned coils, solenoid valves, electronic expansion valve, liquid receiver, pressure transducers and safety devices.
The on-board electrical panel features a microprocessor and dedicated control thanks to which the speed of the fans is adjusted and the dirty filter warning is managed in a timed manner.
In addition to this, a defrost procedure is automatically managed in extreme environmental conditions.
Simplified touch interface for correct machine operation.

Operating

In both winter and summer, the unit ventilates the rooms, recovering up to 90% of the energy through the sensible heat recovery unit. By means of the heat pump, the unit contributes to the room heating demand in winter and the cooling demand in summer.

General technical data (models 14 - 20 - 30)

(1) Outside air -5°/80% RH - Indoor air 20°/50% RH - Nominal flow rate
(2) Sound pressure at 3m in open field according to 3744

 
Size   14 20 30
Type of fans   Forward-curved centrifugal with Brushless motor
No. of Fans   2
Nominal air flow m³/h 210 235 320
Useful pressure Pa 100 100 100
Type of compressor   Rotary BLDC inverter
Refrigerant gas   R410A
Passive heat recovery unit   Polypropylene counter-current
Minimum efficiency of heat recovery unit in winter¹ % 87 85 83
Filters   ePM1 70-80%
Max. power consumption of fans kW 0,28 0,28 0,228
Max. power consumption of compressors kW 1,4 1,4 1,4
Power supply V/ph/Hz 230/1/50
Max. total power consumption kW 1,7 1,7 1,7
Max. total current consumption A 8,5 8,5 8,5
IP protection rating IP 20
Sound pressure² dB(A) 37 38 40

Technical data for winter operation (models 14 - 20 - 30)

(1) Outside air -5°/80% RH - Indoor air 20°/50% RH - Nominal flow rate

 
Size   14 20 30
Active heat recovery    
Total heat output¹ kW 3,58 3,98 5,15
Useful heat output excluding ventilation kW 2,01 2,22 2,76
Passive heat recovery¹ kW 1,53 1,69 2,23
Heat output¹ kW 2,05 2,29 2,92
Power consumption kW 0,64 0,75 0,95
COP   5,6 5,3 5,4

Technical data for summer operation (models 14 - 20 - 30)

(1) Outside air 35°/50% RH - Indoor air 27°/50% RH - Nominal flow rate

 
Size   14 20 30
Active heat recovery    
Total cooling capacity¹ kW 2,18 2,46 2,99
Useful cooling capacity excluding ventilation kW 1,03 1,12 1,37
Passive heat recovery¹ kW 0,43 0,48 0,62
Cooling capacity¹ kW 1,75 1,98 2,37
Power consumption kW 0,59 0,68 0,84
EER   3,69 3,61 3,55

General technical data (model 50/15)

(1) Outside air -5°/80% RH - Indoor air 20°/50% RH - Nominal flow rate
(2) Sound pressure at 3m in open field according to 3744

 
Size   50/15
Type of fans   Centrifugal and backward-curved radial with Brushless motor
No. of Fans   4
Nominal air flow rate - fresh air m³/h 0 - 150
Nominal air flow - recirculation m³/h 300 - 450
Total air flow rate - supply m³/h 462
Useful pressure Pa 100
Type of compressor   Rotary BLDC inverter
Refrigerant gas   R410A
Passive heat recovery unit   Polypropylene counter-current
Minimum efficiency of heat recovery unit in winter¹ % 86,7
Filters   2 x ePM1 70-80% + 1 coarse
Max. power consumption of fans kW 0,38
Max. power consumption of compressors kW 1,4
Power supply V/ph/Hz 230/1/50
Max. total power consumption kW 1,78
Max. total current consumption A 9,8
IP protection rating IP 20
Sound pressure² dB(A) 41

Technical data for winter operation (model 50/15)

(1) Outside air -5°/80% RH - Indoor air 20°/50% RH - Nominal flow rate

 
Size   50/15
Active heat recovery    
Total heat output¹ kW 3,71
Useful heat output excluding ventilation kW 2,50
Passive heat recovery¹ kW 1,06
Heat output¹ kW 2,65
Power consumption kW 0,88
COP   4,2

Technical data for summer operation (model 50/15)

(1) Outside air 35°/50% RH - Indoor air 27°/50% RH - Nominal flow rate

 
Size   50/15
Active heat recovery    
Total cooling capacity¹ kW 2,61
Useful cooling capacity excluding ventilation kW 1,68
Passive heat recovery¹ kW 0,31
Cooling capacity¹ kW 2,3
Power consumption kW 0,75
EER   3,48

Dimensions (models 14 - 20 - 30)

 
Size   14 20 30
Width L mm 850 850 850
Depth P mm 1150 1150 1150
Height H mm 255 255 255
Connection diameter DN mm 200 200 200
Condensate Ø mm 16 16 16

Dimensions (model 50/15)

 
Size   50/15
Width L mm 960
Depth P mm 1000
Height H mm 260
Supply bxh b x h mm 700 x 140
Diameter DN 1 - 2 – 3 Ø mm 160
Diameter DN 4 - 5 Ø mm 200
Condensate Ø mm 16

Operating limits

 
Grandezza   14 - 20 - 30 HY 50/15 RHY
Heating   Indoor Air Outside air
°C 10 / 25°C -20 / 20°C
Cooling   Indoor Air Outside air
°C 18 / 28°C 15 / 38°C

Heat recovery units price list

model euro EVCNT remote electronic control with Wi-Fi connection Filter kit
euro euro
EVHRA-D 14 HY 6716,00 277,31 68,60
EVHRA-D 20 HY 6982,76 277,31 68,60
EVHRA-D 30 HY 7069,14 277,31 68,60

model euro EVCNT remote electronic control Supply and exhaust filter kit Replacement filter kit
euro euro euro
EVHRA-D 50/15 RHY 7776,69 277,31 58,43 35,57
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