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MasterTherm AquaMaster Inverter Combi P
Model code: AQ17ICP
✓ BUS eligible✓ MCS listedGround Source (GSHP)ResidentialHeating only
Heating capacity
1–5.23 kW
SCOP
4.87
W35
COP
4.29
B0/W35
Max flow temp
75°C
Refrigerant
R290
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: 037-0198-25-1
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: 037-0198-25-1
| General | |
|---|---|
| Heat pump type | Ground Source (GSHP) |
| Application | Residential |
| Refrigerant | R290 |
| Mode | Heating only |
| Heating performance | |
| Heating capacity | 1–5.23 kW |
| Max heating output (low temp) | 4.72 kW at B0/W55 |
| COP (heating) | 4.29 at B0/W35 |
| SCOP (heating) | 4.87 at W35 |
| Heating flow temperature | up to 75 °C |
| Electrical, acoustic and physical | |
| Electrical supply | 220-240V (Single Phase) |
| Dimensions (H×W×D) | 1919 × 540 × 546 mm |
| Operational Weight | 105 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.