Hitachi Yutaki S

Specifications and technical data

Air Source (ASHP)ResidentialR321.85–4.3 kW

Manufacturer	Hitachi
Model	Yutaki S
Model code	Yutaki S 4.3kW
Heat pump type	Air Source (ASHP)
Application	Residential
Refrigerant	R32
Mode	Heating & cooling
Heating capacity	1.85–4.3 kW
COP	5.25 at A7/W35
SCOP	4.6 at W35
EER (cooling)	4
Operating range (air)	-20 to 43 °C
Flow temperature	20–60 °C
Power input	0.77 kW
Dimensions (H×W×D)	629 × 799 × 300 mm
Weight	45 kg
Sound power level	61 dB(A) (Sound power, outdoor unit)
Data added	2026-06-11
Data source	Hitachi brochure / product data

Notes

Split air-to-water heat pump for heating and optional cooling applications.

Outdoor unit RAS-2WHVRP1; sound pressure/power 46/61 dB(A). Min/rated/max heating capacity at A7/W35; COP according to EN14511. SCOP field uses 35°C average climate; 55°C SCOP is also published in brochure.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Secon Renewables

✓ Verified via Heat Pump KEYMARK data

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.