AiWa H Urban EVI Indoor - WAMAK Heat Pumps

Air Source Heat pumps AiWa H EVI Urban Indoor

Compact air-to-water heat pump for heating, cooling and domestic hot water with the possibility of installation either in the utility room or outdoors. A short closed refrigerant circuit with a silent scroll compressor at the bottom under the fan simplifies installation and helps for long-term stable operation.
Use for single-family houses and smaller buildings with a heat output requirement of up to 20 kW. The COMFORT range includes robust heat pump internal refrigerant circuit parts as well as all the measuring, distribution and control elements required by today's modern climate technology in single-family houses.
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 H Indoor	18 EVI	23 EVI	27 EVI
Product sheet
Article nr.	WA0i1355	WA0i1356	WA0i1358
Heating capacity [ kW ] EN 14511
A7 / W35	20.7	26.0	29.0
A2 / W35	17.6	22.2	24.7
A-7 / W34	14.8	18.4	20.3
A7 / W55	21.5	26.5	29.3
A2 / W55	18.5	23.0	25.2
A-7 / W52	15.6	19.3	21.0
Energy Efficiency Parameters and Performance ErP [ middle temperature region ]
Rated nominal heating capacity P rated [ kW ]	16.7	20.8	23.0
Energy class	A+++	A+++	A+++
SCOP	4.37	4.24	4.41
Seasonal energy efficiency η [ % ]	174.8	169.6	176.4
Bivalent point [ ºC ]	-7	-7	-7
Parameter of heat sink
Maximal flow temperature [ ºC ]	65	65	65
Minimal flow temperature [ ºC ]	25	25	25
Flow nominal [ m3/h ] [@35/30]	3.59	4.49	5.00
Pressure drop [ kPa ] [@35/30]	15	14	16
Nominal ∆T [ K ] [@W35°C]	5	5	5
Nominal ∆T [ K ] [@W55°C]	8	8	8
Nominal ∆T [ K ] [@W65°C]	10	10	10
Connection port size [ " ]	1.1/4"	1.1/4"	1.1/2"
Parameter of low temperature heat source
Minimal source temperature [ ºC ]	-22	-22	-22
Maximal source temperature [ ºC ]	40	40	40
Flow source nominal [ m3/h ]	6470	8030	9060
Pressure drop source [ kPa ]	0.024	0.032	0.036
Nominal ∆T source [ K ]	7	7	7
Connection port size source [ " ]	1200mm x 1200mm	1200mm x 1200mm	1200mm x 1200mm
Electrical parameters
Voltage [ V ]	3~ 400/50	3~ 400/50	3~ 400/50
Safety protection [ A ]	C25	C32	C32
Current - nominal [ A ]	9.32	11.80	12.30
Current - maximal [ A ]	16.00	18.60	21.00
Current - Start [ A ]	18.9	29.7	32.12
Softstart	MCI 15	-	-
Sound information
Sound power - indoor Lw [ dB(A) ]	66.5	67.2	68.2
Sound power - outdoor Lw [ dB(A) ]
Sound pressure Lp in 1 meter [ dB(A) ]	58.5	59.2	60.2
Sound pressure Lp in 5 meter [ dB(A) ]	44.5	45.2	46.2
Sound pressure Lp in 10 meter [ dB(A) ]	38.5	39.2	40.2
Sound pressure Lp in 15 meter [ dB(A) ]	35.0	35.7	36.7