AW EVI Urban Split

Heat pump air - water with high flow temperature in Split system

Air - water split high temperature heat pump with scroll compressor in internal unit and external unit, with stable frame construction and flexible outputs. Double high-absorption suspension with sylomer pads and adjustable base plates ensure low noise and vibration levels of the Scroll compressor.

Stainless steel plate heat exchanger (1,4401) for heating circuit. Free-hanging Al-Cu V-shaped heat exchanger with water resistant coating in the outdoor unit. Electrical switchboard with integrated safety elements and equithermal controller of the heat pump is located below the upper lid in the indoor unit. Quiet, low-speed EC Ziehl - Abegg with bionic fins located in the outdoor unit. Outdoor unit with type VOV600 and VOV900 made of 100% stainless steel. Reversible defrosting optimized via APS system with subcooling of liquid refrigerant. With electronic starter via built-in soft starter and electronic expansion control with autoadaptivity.

Frame construction with a massive base plate on adjustable legs. Covering the epoxy-coated unit. The multi-layer sound insulation and vibration-eliminating profiles are glued from the inside of the cover. Equithermal, digital control of the heat pump with integrated cooling control function. For controlling one heating or cooling circuit with mixing unit, for one heating or cooling circuit without a mixing unit. Temperature regulation for DHW storage tank and control of electrical backup heating elementnt inside the heat pump. Simple extension of control up to 3 heating / cooling circuits via expansion modules or up to 16 circuits via system controllers. The standard version also includes solar control as well as the possibility of cascading up to 16 devices.

Full-text control menu with features dependent on user instructions, information texts and status output signal. Diagnostic system with record history of operation. External temperature sensor, hotgas sensor, liquid refrigerant temperature sensor, heat pump flow and return temperature sensor as well as source output sensor, source return sensor, and hot water sensor.

Optionally available with ModBus module as well WebControl control and monitoring via the Internet.


Heat pump type AiWa 18 EVI S AW 23 EVI AW 27 EVI AW 35 EVI AW 40 EVI AW 47 EVI
Article nr. WA001345 WA001346 WA001347 WA001348 WA001349 WA001350
Refrigerant R410A R410A R410A R410A R410A R410A
Heating capacity [ kW ]
A2/W35 17.8 21.5 26.4 32.8 40.2 45.9
A7/W35 20.77 25.08 30.8 38.27 46.9 53.55
A-2/W35 16.47 19.9 24.43 30.35 37.2 42.48
A2/W55 18.14 21.91 26.9 33.42 40.96 46.77
Input [ kW ]
A2/W35 4.57 5.66 6.95 8.87 10.87 12.41
Performance COP
A2/W35 3.9 3.8 3.8 3.7 3.7 3.7
Parameter of heat rejection
Maximal flow temperature [ ºC ] +65°C +65°C +65°C +65°C +65°C +65°C
Minimal flow temperature [ ºC ] +12°C +12°C +12°C +12°C +12°C +12°C
Flow nominal [ m3/h ] 3.08 3.72 4.57 5.68 6.96 7.94
Pressure drop ( max. ) [ kPa ] 15 14 12 12 15 14
∆T recommended [ K ] 5 5 5 5 5 5
Connection port size [ " ] 1.1/4" 1.1/2" 1.1/2" 2" 2" 2"
Parameter of low potential heat source ( source )
Minimal source temperature [ ºC ] -22°C -22°C -22°C -22°C -22°C -22°C
Maximal source temperature [ ºC ] +40°C +40°C +40°C +40°C +40°C +40°C
Flow source nominal [ m3/h ] 5290 6340 7780 9570 11730 13390
Pressure drop source ( max. ) [ kPa ] 0.024 0.032 0.023 0.027 0.024 0.032
∆T recommended source [ K ] 7 7 7 7 7 7
Connection port size source [ " ] 12mm / 22mm 16mm / 22mm 16mm / 22mm 16mm / 28mm 16mm / 28mm 22mm / 35mm
Parameter of electrical connection and planing
Mains dimension [ mm2 ] 5x4 5x6 5x6 5x6 5x10 5x10
Voltage [ V ] 3 x 400 3 x 400 3 x 400 3 x 400 3 x 400 3 x 400
Safety protection [ A ] 25 32 32 32 40 40
Current - nominal [ A ] 9.32 11.8 12.3 21.23 21.79 23.53
Current - maximal [ A ] 16 18.6 21 32.5 33 37.4
Current - Start [ A ] 18.9 29.7 32.12 49.7 50.47 57.2
Softstart MCI 15 MCI 25 MCI 25 MCI 25 MCD201 MCD201
Energy Efficiency Parameters and Performance ErP [ middle region Brussels ]
Energy class A++ A++ A++ A+ A++ A+
SCOP 3.90 3.81 3.82 3.73 3.74 3.74
Seasonal energy efficiency η [ % ] 156 152 153 149 150 150
Rated nominal heating capacity P rated [ kW ] 21 25 31 38 47 54
Bivalent point [ ºC ] 0 0 0 0 0 0
Sound emissions - indoor Lw [ dB(A) ] 48 51 52 54 54 56
Sound emissions - outdoor Lw [ dB(A) ] 66 67 69 69 69 69

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