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Kronoterm VERSI-X 1F
Model code: VERSI-X 1F
✓ BUS eligible✓ MCS listedAir Source (ASHP)ResidentialHeating & cooling
Heating capacity
6.5 kW
SCOP
4.84
W35
COP
4.8
A7/W35
Max flow temp
66°C
Sound power
36 dB(A)
Refrigerant
R452B
Boiler Upgrade Scheme
✓ BUS eligible
Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026).
PEL certificate: 011-1W0519_02
Grant also needs an MCS-certified installer and a qualifying system design.
MCS certification
✓ MCS listed
Certificate: 011-1W0519_02
| General | |
|---|---|
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R452B |
| Mode | Heating & cooling |
| Heating performance | |
| Heating capacity | 6.5 kW |
| Max heating output (low temp) | 6.2 kW at A-7/W35 |
| COP (heating) | 4.8 at A7/W35 |
| SCOP (heating) | 4.84 at W35 |
| Operating range (air) | -25 to 40 °C |
| Heating flow temperature | 17–66 °C |
| Cooling performance | |
| Cooling capacity | 5.08 kW |
| EER (cooling) | 1.78 at A35/W7 |
| Cooling flow temperature | 7–25 °C |
| Electrical, acoustic and physical | |
| Power input | 1.28 kW |
| Electrical supply | 220-240V (Single Phase) |
| Sound power level | 36 dB(A) (Sound Power LW(A)) |
| Dimensions (H×W×D) | 1280 × 600 × 710 mm |
| Operational Weight | 147 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.