Hitachi airH2O 400 12kW (400V)
Specifications and technical data
Air Source (ASHP)ResidentialR323.77–12 kW
| Manufacturer | Hitachi |
|---|---|
| Model | airH2O 400 12kW (400V) |
| Model code | HZKF12KSO-Q |
| Heat pump type | Air Source (ASHP) |
| Application | Residential |
| Refrigerant | R32 |
| Mode | Heating & cooling |
| Heating capacity | 3.77–12 kW |
| COP (heating) | 4.95 at A7/W35 |
| Operating range (air) | -25 to 35 °C |
| Heating flow temperature | 20–65 °C |
| Electrical supply | 400V/3P/50Hz |
| Cooling capacity | 11 kW |
| EER (cooling) | 4.1 at A35/W7 |
| Operational Weight | 49.5 kg |
| Sound power level | 64 dB(A) (Sound Power LW(A)) |
| Data added | 2026-06-27 |
| Data source | Manufacturer Data Sheet |
Notes
airH2O 400 air-to-water heat pump using R32 refrigerant for heating, cooling and domestic hot water applications.
Flow 20-65°C, ambient -25 to 35°C heating; R32 charge 2.7 kg. Cooling EER at A35/W7. Sound power shown as normal mode heating/cooling paired values in source; heating value used.
Where to buy (UK)
| UK Supplier | The Heat Pump Warehouse |
|---|---|
| UK Supplier | Secon Renewables |
✓ Manually verified by Heat Pump Database
✎ Suggest a correction to this data
Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.
More from Hitachi
airH2O 400 10kW
ASHP · 3.25–10 kW
airH2O 400 12kW
ASHP · 3.77–12 kW
airH2O 400 14kW
ASHP · 4.32–14 kW
airH2O 400 16kW
ASHP · 4.86–16 kW
airH2O 400 4kW
ASHP · 1.85–4.4 kW
airH2O 400 6kW
ASHP · 1.95–6 kW
airH2O 400 8kW
ASHP · 2.1–8 kW
Yutaki M
ASHP · 1.85–4.3 kW · SCOP 4.73
Other Air Source (ASHP) heat pumps
Hybrox
ASHP · 2.05–5.5 kW
Hybrox
ASHP · 3.01–8 kW
Hybrox
ASHP · 2.97–10 kW
Hybrox
ASHP · 7.15–18 kW
Hybrox
ASHP · 2.2–13 kW
Hybrox SE
ASHP · 0.83–7.05 kW