Yutaki-S / S Combi / S80 Outdoor Units

System Type: Air to Water Heat Pump Outdoor Units (Split System)
Refrigerant Type: R32 (Yutaki S / S Combi), R410A + R134A (Yutaki S80)
Capacity Range: 4.3 kW to 32.0 kW (heating) / 4.0 kW to 20.6 kW (cooling)
Power Supply: 230V Single Phase / 400V Three Phase (Model dependent)
Compressor Type: Rotary & Scroll DC Inverter
Operating Ranges: Heating down to -25°C, Cooling up to +46°C
Pipe Length Limits: Up to 75 m / 20 m height difference (model dependent)
Pre-charged Refrigerant: Up to 15 m (additional charge required beyond)
Efficiency Ratings: COP up to 5.25 / SCOP up to 4.8 / Energy Class A+++

Product Details

Product Description

The Yutaki-S, S Combi, and S80 Outdoor Units are high-efficiency inverter-driven air-to-water heat pump modules designed for residential and small commercial applications. Engineered for both new builds and retrofit scenarios, these systems deliver reliable heating, optional cooling, and domestic hot water support when paired with indoor hydraulic modules. With power outputs ranging from 4.3 kW to 32.0 kW and wide temperature operation, they are suited for all climates.

Features & Benefits

Wide operating range: -25°C to +46°C
High energy efficiency (A+++ rating)
Scroll & rotary inverter compressor for partial load efficiency
Compact footprint for flexible installation
R32 refrigerant for lower GWP (Yutaki S / S Combi)
SG Ready and Smart Grid compatible
Compatible with Hi-Kumo app and Hi-Box control
Ideal for heating, cooling, and DHW generation

PDF manuals and Technical Catalogues

Model	Nominal Heating Capacity (kW)	Cooling Capacity (kW)	Sound Power (dB(A))	Dimensions (HxLxD mm)	Net Weight (kg)	Air Flow (m3/h)	Refrigerant Type	Power Supply	Pipe Length (m)	Refrigerant Charge / Add. Load
RAS-2WHVRP1	4.3	4.0 – 6.0	61	629 x 799 x 300	45	2526	R32	230V / 1Ph / 50Hz	3 – 50	1.2 kg / 15 g/m
RAS-2.5WHVRP1	6.0	5.3 – 6.0	63	629 x 799 x 300	45	2526	R32	230V / 1Ph / 50Hz	3 – 50	1.3 kg / 15 g/m
RAS-3WHVRP1	8.0	6.5 – 7.0	69	629 x 799 x 300	44	2982	R32	230V / 1Ph / 50Hz	3 – 50	1.3 kg / 32 g/m
RAS-4WHVNPE	11.0	7.2 – 11.8	64	1380 x 950 x 370	103	4800	R410A	230V / 1Ph / 50Hz / 400V	5 – 75	3.3 kg / 60 g/m
RAS-5WHVNPE	14.0	9.5 – 12.6	65	1380 x 950 x 370	137	5400	R410A	230V / 1Ph / 50Hz / 400V	5 – 75	3.4 kg / 60 g/m
RAS-6WHVNPE	16.0	10.5 – 13.7	67	1380 x 950 x 370	139	6000	R410A	230V / 1Ph / 50Hz / 400V	5 – 75	5.0 kg / 65 g/m
RAS-4WHNPE	11.0	7.2 – 11.8	64	1380 x 950 x 370	103	4800	R410A	400V / 3Ph / 50Hz	5 – 75	3.3 kg / 60 g/m
RAS-5WHNPE	14.0	9.5 – 12.6	65	1380 x 950 x 370	137	5400	R410A	400V / 3Ph / 50Hz	5 – 75	3.4 kg / 60 g/m
RAS-6WHNPE	16.0	10.5 – 13.7	67	1380 x 950 x 370	139	6000	R410A	400V / 3Ph / 50Hz	5 – 75	5.0 kg / 65 g/m
RAS-8WHNPE	20.0	14.0 – 16.4	73	1380 x 950 x 370	–	7620	R410A	400V / 3Ph / 50Hz	5 – 75	5.3 kg / 120 g/m
RAS-10WHNPE	24.0	17.5 – 20.6	74	1380 x 950 x 370	–	8040	R410A	400V / 3Ph / 50Hz	5 – 75	5.3 kg / 120 g/m