WW EVI Comfort

High temperature heat pump water - water

Compact high flow temperature heat pump with stable frame construction and flexible outputs. Double high-absorption suspension with sylomer pads and adjustable feet base plates ensure low noise and vibration levels of the hermetic SCROLL compressor.

Stainless steel plate heat exchanger (1.4401) for heating circuit. Stainless plate plate heat exchanger (1.4401) for source circuit. Electrical switchboard with integrated safety elements and equithermal controller of the heat pump is located under the upper lid. With electronic starter via built-in soft starter and electronic expansion valve 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 (passive cooling). For controlling one heating circuit with mixing unit, for one heating circuit without a mixing unit. Using the cooling function (passive cooling) and the cooling circuit with mixing unit. Temperature regulation for DHW storage tank and control of electrical auxiliary heating. 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.

Build-in condenser pump, backup heating element of 6 kW as well as 3 way switching valve for DHW preparation in packaging.

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


Build-in condenser pump, backup heating element of 6 kW as well as 3 way switching valve for DHW preparation in packaging.

Heat pump type WW 07 EVI WW 10 EVI WW 14 EVI WW 18 EVI
Article nr. WA001300 WA001301 WA001302 WA001303
Refrigerant R410a R410a R410a R410a
Heating capacity [ kW ]
W10/W35 6.76 10.11 14.03 18.40
W15/W35 7.76 11.61 16.11 21.12
W7/W35 6.27 9.38 13.02 17.08
W10/W55 6.95 10.39 14.42 18.92
Input [ kW ]
W10/W35 1.19 1.81 2.42 2.92
Performance COP
W10/W35 5.7 5.6 5.8 6.3
Parameter of heat rejection
Maximal flow temperature [ ºC ] +65°C +65°C +65°C +65°C
Minimal flow temperature [ ºC ] +20°C +20°C +20°C +20°C
Flow nominal [ m3/h ] 1.17 1.75 2.43 3.19
Pressure drop ( max. ) [ kPa ] 12 12 12 12
∆T recommended [ K ] 5 5 5 5
Connection port size [ " ] 1" 1" 1.1/4" 1.1/4"
Parameter of low potential heat source ( source )
Minimal source temperature [ ºC ] +7ºC +7ºC +7ºC +7ºC
Maximal source temperature [ ºC ] +25°C +25°C +25°C +25°C
Flow source nominal [ m3/h ] 1.61 2.40 3.35 4.47
Pressure drop source ( max. ) [ kPa ] 12 12 12 12
∆T recommended source [ K ] 3 3 3 3
Connection port size source [ " ] 1 1 1.1/4 1.1/4
Parameter of electrical connection and planing
Mains dimension [ mm2 ] 5x4 5x4 5x4 5x4
Voltage [ V ] 3 x 400 3 x 400 3 x 400 3 x 400
Safety protection [ A ] 20 20 20 20
Current - nominal [ A ] 3.18 3.54 4.25 5.56
Current - maximal [ A ] 5.00 6.50 9.20 10.90
Current - Start [ A ] 8.61 9.61 11.56 15.06
Softstart MCI 12 MCI 12 MCI 12 MCI 12
Energy Efficiency Parameters and Performance ErP [ middle region Brussels ]
Energy class A++ A++ A++ A++
SCOP 5.36 5.38 5.63 6.14
Seasonal energy efficiency η [ % ] 214 215 225 246
Rated nominal heating capacity P rated [ kW ] 7 10 14 18
Bivalent point [ ºC ] - - - -
Sound emissions - indoor Lw [ dB(A) ] 44 44 45 45
Sound emissions - outdoor Lw [ dB(A) ] - - - -

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