Key information
- Relevant series: AQ-Vento R290
- Published model range: 2.43 to 29.95 kW at stated conditions
- Leaving-water temperature: Up to 75°C, subject to model and condition
R290 air-to-water heat pumps for heating, cooling and domestic hot water.
Select an R290 heat pump from the building load, required leaving-water temperature and available electrical supply. AQ-Vento R290 covers residential and light-commercial duties with single- and three-phase models.
Where R290 fits
R290 suits new-build and retrofit projects that need hydronic heating, cooling and DHW with a low-GWP refrigerant. Final design must follow the applicable safety clearances and installation requirements.
- Underfloor heating and fan coils
- Villas, apartments and light commercial buildings
- Projects requiring higher water temperatures
What to compare between models
Do not shortlist a unit from maximum output alone. Check capacity at the design outdoor temperature, COP at the required water temperature, minimum modulation, electrical supply and sound at the proposed location.
- Capacity and COP at the same A/W condition
- Single- or three-phase supply
- Operating range, water flow and pressure drop
Technical shortlist
| Check | Why it matters |
|---|---|
| Design heat load | Sets the output required at the most demanding condition. |
| Leaving-water temperature | Higher water temperature reduces efficiency and changes the duty point. |
| Available power supply | Separates single- and three-phase models before final selection. |
| Outdoor position | Affects safety, sound, airflow recirculation and service access. |
Mistakes to avoid
- Selecting from nominal output only.
- Comparing COP values from different test conditions.
- Ignoring minimum flow, system volume and defrost operation.
Frequently asked questions
Can an R290 unit also produce domestic hot water?
Yes, when the selected model and hydraulic design meet the required DHW temperature and usage profile.
Is a larger unit always the safer choice?
No. Oversizing can increase cycling, reduce seasonal efficiency and make hydraulic control more demanding.