VAILLANT Vaillant Air/Water Heat Pump 5 kW aroTHERM plus VWL 55/8.1 Monobloc R290 – 8000033703 DACH Version
€ 5.696,24 exkl. USt.
VAILLANT Vaillant Air/Water Heat Pump 5 kW aroTHERM plus VWL 55/8.1 Monobloc R290 – 8000033703 DACH Version is backordered and will ship as soon as it is back in stock.
Advantages at a glance
A+++ at 35 °C
190% seasonal space heating energy efficiency. The /8.1 series is Vaillant's most efficient air-to-water heat pump.
Refrigerant R290
Propane with a GWP of 0.02 – virtually no global warming potential and long-term regulatory certainty.
Sound Safe System
Maximum sound power of 55.6 dB(A), only 27.5 dB(A) at 3m distance in night mode.
Flow up to 75 °C
Renovation without radiator replacement: even existing radiator systems can continue to operate efficiently.
Active cooling
Activatable cooling operation with 4.89 kW at A35/W18 and EER 4.76. On-site preparation of the heating system required.
230 V – no heavy current needed
Single-phase connection with a maximum of 15.2 A. The VR 940 for connection is included in the scope of delivery.
Performance & efficiency according to EN 14511
| Operating point | Heating output / Input / COP |
|---|---|
| A7/W35 | 2.00 kW / 0.41 kW / 4.92 |
| A2/W35 | 3.17 kW / 0.78 kW / 4.07 |
| A−7/W35 | 5.59 kW / 2.09 kW / 2.67 |
| A7/W45 | 2.00 kW / 0.55 kW / 3.66 |
| A7/W55 | 2.76 kW / 0.95 kW / 2.92 |
| A−7/W55 | 5.35 kW / 2.46 kW / 2.17 |
| Cooling A35/W18 | 4.89 kW / 1.03 kW / EER 4.76 |
Technical data
| Parameter | Value |
|---|---|
| Energy efficiency class 35 °C / 55 °C | A+++ / A++ |
| Space heating efficiency ηs 35 °C / 55 °C | 190 % / 143 % |
| Heating capacity partial load point A (Tj −7 °C) W35 | 5.0 kW |
| Refrigerant / Filling quantity / GWP | R290 / 0.6 kg / 0.02 |
| Electrical power consumption (max) | 3.4 kW |
| Voltage supply / Current (max) | 230 V (50 Hz) / 15.2 A |
| Protection class / Protection class | IPX4 / I |
| Sound power level (max) | 55.6 dB(A) |
| Sound power A7/W35 in silent mode | 46.0 dB(A) |
| Dimensions (H × W × D) | 765 × 1,100 × 450 mm |
| Weight | 113 kg |
| Heating flow and return connection | G 1¼″ |
| Heating circuit volume | 1.5 l |
Operating limits
| Parameter | Value |
|---|---|
| Flow temperature heating | 20 – 75 °C |
| Distance outdoor unit to last indoor unit | max. 20 m |
| Operating pressure heating circuit | max. 2.5 bar |
| Installation | Monoblock, outdoor installation |
| Color | black-grey RAL 7021 |
Scope of delivery
Frequently asked questions
What does the DACH version mean?
Device, control, and documentation are designed for the German-speaking region: menu navigation and documentation in German, mains connection 230 V / 50 Hz. This allows the heat pump to be used equally in Germany, Austria, and Switzerland. Subsidies and registration requirements differ by country – your local installer will clarify this.
Why R290 and not R32 or R410A?
R290 is propane, a natural refrigerant with a global warming potential of 0.02 instead of several hundred. It is not subject to the shortage of fluorinated refrigerants and at the same time achieves higher flow temperatures – here up to 75 °C.
Does the 5 kW size fit my house?
The VWL 55/8.1 delivers 5.59 kW at −7 °C outdoor temperature and 35 °C flow. This is suitable for single-family homes with approximately 5 to 7 kW heating load, typically new builds or well-renovated existing buildings. The exact dimensioning requires a heating load calculation according to EN 12831.
Can I continue to use old radiators with it?
Yes. With a flow of up to 75 °C, the aroTHERM plus reaches temperatures that can also serve older radiators. However, it only becomes efficient at low flow – at 55 °C the efficiency is 143%, at 35 °C it is 190%.
How loud is the heat pump in operation?
55.6 dB(A) sound power at maximum, in silent mode at A7/W35 only 46.0 dB(A). In night mode, it is 27.5 dB(A) at 3m distance – quieter than a quiet living room.
What else do I need in addition to the outdoor unit?
The aroTHERM plus is a monoblock; the complete refrigeration circuit is located outdoors. For a complete system, depending on the concept, a hydraulic station or a uniTOWER, a hot water cylinder, and the system control are added. We can put together the right package on request.
Where can I buy the Vaillant heat pump?
At SOLARVIC on solarvic.at – as a specialist dealer and installer, we deliver throughout Austria and provide advice on dimensioning. Shipping within Austria is free for orders over €5,000.
€ 5.696,24 exkl. USt.
VAILLANT Vaillant Air/Water Heat Pump 5 kW aroTHERM plus VWL 55/8.1 Monobloc R290 – 8000033703 DACH Version is backordered and will ship as soon as it is back in stock.