heatpumpdatabaseProduct data sheetheatpumpdatabase.com
Viessmann Vitocal 300-A
Model code: AWO-AC 301.B14
✓ BUS eligible✓ MCS listedAir Source (ASHP)ResidentialHeating & cooling
Heating capacity
7.2–12 kW
COP
5
A7/W35
Max flow temp
65°C
Sound power
54 dB(A)
Refrigerant
R410A
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: BSI KM 554512/13/2
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: BSI KM 554512/13/2
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R410A |
| Mode | Heating & cooling |
| Heating performance | |
| Heating capacity | 7.2–12 kW |
| Max heating output (low temp) | 12 kW at A-7/W35 |
| COP (heating) | 5 at A7/W35 |
| Operating range (air) | -20 to 40 °C |
| Heating flow temperature | up to 65 °C |
| Cooling performance | |
| Cooling capacity | 9.03 kW |
| Max cooling output (high temp) | 7.28 kW at A35/W7 |
| Electrical, acoustic and physical | |
| Electrical supply | 380-415V (Three Phase) |
| Sound power level | 54 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 1980 × 1100 × 1100 mm |
| Operational Weight | 250 kg |
Test conditions: A = outdoor air °C, W = flow water °C (e.g. A7/W35 = 7°C air, 35°C flow). Compare COP and SCOP only at the same conditions.