Air Source Heat pumps AiWa EVI Split

Split heat pump for heating, cooling and domestic hot water in split design with outdoor and indoor unit. The silent Scroll compressor is located in the indoor unit and, in contrast, the heat exchanger and fan are located outside the building. The split design will allow installation in more challenging conditions during renovations where the energy source is located further away from the utility room.
Use for multi-family dwellings, suburban mixed-use buildings or commercial operations. The Urban range is based on a robust construction quality steel for all parts. High quality, long proven heat pump circuit components extend the life of the heat pump.
The primary source is the heat energy from the ambient air, which is blown by a silent fan in the shape of an owl's wing through a heat exchanger made of copper and aluminium.

Heat pump type: AiWa Split 18 EVI 23 EVI
Product sheet
Article nr. WA001345 WA001346
Heating capacity [ kW ] EN 14511
A7 / W35 20.7 26.0
A2 / W35 17.6 22.2
A-7 / W34 14.8 18.4
A7 / W55 21.5 26.5
A2 / W55 18.5 23.0
A-7 / W52 15.6 19.3
Energy Efficiency Parameters and Performance ErP [ middle temperature region ]
Rated nominal heating capacity P rated [ kW ] 16.7 20.8
Energy class A+++ A+++
SCOP 4.37 4.24
Seasonal energy efficiency η [ % ] 174.8 169.6
Bivalent point [ ºC ] -7 -7
Parameter of heat sink
Maximal flow temperature [ ºC ] 65 65
Minimal flow temperature [ ºC ] 25 25
Flow nominal [ m3/h ] [@35/30] 3.59 4.49
Pressure drop [ kPa ] [@35/30] 15 14
Nominal ∆T [ K ] [@W35°C] 5 5
Nominal ∆T [ K ] [@W55°C] 8 8
Nominal ∆T [ K ] [@W65°C] 10 10
Connection port size [ " ] 1.1/4" 1.1/2"
Parameter of low temperature heat source
Minimal source temperature [ ºC ] -22 -22
Maximal source temperature [ ºC ] 40 40
Flow source nominal [ m3/h ] 6470 8030
Pressure drop source [ kPa ] 0.024 0.032
Nominal ∆T source [ K ] 7 7
Connection port size source [ " ] 1/2” - 7/8” 5/8” - 7/8”
Electrical parameters
Voltage [ V ] 3~ 400/50 3~ 400/50
Safety protection [ A ] C25 C32
Current - nominal [ A ] 9.32 11.80
Current - maximal [ A ] 16.00 18.60
Current - Start [ A ] 18.9 29.7
Softstart MCI 15 -
Sound information
Sound power - indoor Lw [ dB(A) ] 58.3 58.9
Sound power - outdoor Lw [ dB(A) ]
Sound pressure Lp in 1 meter [ dB(A) ] 50.3 50.9
Sound pressure Lp in 5 meter [ dB(A) ] 36.3 36.9
Sound pressure Lp in 10 meter [ dB(A) ] 30.3 30.9
Sound pressure Lp in 15 meter [ dB(A) ] 26.8 27.4
5 - 8 =


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