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Kronoterm VERSI-O 1F
Model code: VERSI-O 1F
✓ BUS eligible✓ MCS listedAir Source (ASHP)ResidentialHeating & cooling
Heating capacity
6.4 kW
SCOP
4.97
W35
COP
5.01
A7/W35
Max flow temp
66°C
Sound power
43 dB(A)
Refrigerant
R452B
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: 011-1W0519_01
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: 011-1W0519_01
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R452B |
| Mode | Heating & cooling |
| Heating performance | |
| Heating capacity | 6.4 kW |
| Max heating output (low temp) | 6.11 kW at A-7/W35 |
| COP (heating) | 5.01 at A7/W35 |
| SCOP (heating) | 4.97 at W35 |
| Operating range (air) | -25 to 40 °C |
| Heating flow temperature | 17–66 °C |
| Cooling performance | |
| Cooling capacity | 5.02 kW |
| EER (cooling) | 1.85 at A35/W7 |
| Cooling flow temperature | 7–25 °C |
| Electrical, acoustic and physical | |
| Power input | 1.24 kW |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 43 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 1215 × 800 × 600 mm |
| Operational Weight | 145 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.