Description
Heat Pump Specifications
| Nominal capacity | 4.9kW |
| Compressor type | Rotary piston |
| Refrigerant type | R290 |
| Refrigerant volume | 0.6kg |
| Minimum flow rate required | 7.17 L/m |
| Warranty | Min 2 years* |
Product Details
| Product code | 8000049527 |
| Pro & Plus interface unit code (sold separately) | 8000044872 |
| Flow temp max | 75°C |
| Flow temp min | 20°C |
| Supply | 220–240V |
| Max sound power level | 55.6 dB(A) |
Product Dimensions
| Height | 765mm |
| Width | 1100mm |
| Depth | 450mm |
| Net weight | 113kg |
Manufacturer Listed COP’s (EN-14511)
| A-7°C/W35°C | 2.67 |
| A2°C/W35°C | 4.07 |
| A7°C/W35 (DT=5K) | 4.92 |
| A-7°C/W55 | 2.14 |
| A7°C/W55 | 2.92 |
Vaillant aroTHERM Plus 5kW – Latest Generation R290 Monobloc Heat Pump
Key Features
- Ultra‑quiet operation from just 56 dB(A)
- High efficiency with ErP ratings up to A+++
- 75°C flow temperature – ideal for radiator systems and retrofits
- Natural R290 refrigerant with extremely low GWP of 3
- Compatible with uniTOWER, hydraulic modules and uniSTOR cylinders
- Smart‑grid ready (SG‑ready) and PV‑compatible
The Vaillant aroTHERM Plus 5kW is a high‑performance, low‑noise air‑to‑water heat pump designed for modern heating systems and retrofit applications. Using natural R290 refrigerant, it delivers excellent efficiency, ultra‑low environmental impact, and high flow temperatures suitable for properties with existing radiators.
Its compact monobloc design simplifies installation and removes the need for F‑Gas handling. With extremely low noise output, the 5kW model is easy to site in terraced homes, semi‑detached properties, and noise‑sensitive locations.
The aroTHERM Plus integrates seamlessly with Vaillant controls such as sensoCOMFORT and sensoAPP, and pairs perfectly with uniSTOR heat pump cylinders for a complete, high‑performance system.
High Performance
The 5kW model delivers stable output even in colder conditions, with flow temperatures up to 75°C. This makes it suitable for radiator‑based systems, hybrid setups, and properties requiring higher domestic hot water temperatures. Legionella protection is achieved without relying on immersion heaters, improving efficiency and lowering running costs.
Energy Efficiency
With a SCOP of up to 4.8–5.0 (site and system dependent), the aroTHERM Plus 5kW offers excellent seasonal efficiency. It is PV‑ready and SG‑ready, allowing integration with smart tariffs and solar PV systems to maximise self‑consumption and reduce operating costs.
Ultra‑Quiet Operation
The 5kW unit features Vaillant’s advanced acoustic engineering, achieving sound power levels as low as 56 dB(A). Noise‑reduction modes make planning and siting straightforward, even where boundary distances are tight or neighbours are close.
Natural Refrigerant (R290)
The sealed monobloc system uses R290 natural refrigerant, delivering a GWP of just 3. This ensures long‑term compliance with future environmental regulations and offers reduced protection zones for easier siting and installation flexibility.
