– YUTAKI S80
A real alternative to traditional boilers

– Heating and hot water
The system heats water up to 80°C, even with outdoor temperatures as low as -20°C. It provides heating via underfloor piping, radiators and fan coils, and is compatible with all models of water tank.
– Comfort and efficiency

– Lower carbon footprint
The heat pump converts every kilowatt of electricity into 5kW of heating energy. Compared to traditional boilers, it reduces electricity bills by up to 60% and CO2 emissions by 50%.

– Control and peace of mind
The controller with LCD display and thermostat is easy to programme, giving you total control over the system. For even more control, it’s also compatible with wireless thermostats.
The Hi-Kumo apps ensures your home is always the temperature you want it to be, no matter where you are in the world.
The Hi-Kumo apps ensures your home is always the temperature you want it to be, no matter where you are in the world.
– Outdoor Unit

Nominal capacity (max) | Heating | kW |
Power consumption - nom | Heating | kW |
COP at 7°C ext, 35°C water | (Nominal) |
Energy class rating 35°C |
Seasonal efficiency 35°C | SCOP / ŋs |
Energy class rating 55°C |
Seasonal efficiency 55°C | SCOP / ŋs |
Power feed |
Noise level (Sound Power) | dB(A) |
Diameter of pipes (liquid-gas) | Inches |
Heating operating range | Outdoor temperature | ºC (DB) |
Water outlet temperature | ºC |
Operating range Tank (DHW) | Outdoor temperature | ºC (DB) |
Water outlet temperature | ºC |
Refrigerant |
Refrigerant charge | kg |
Compressor |
Dimensions | Height (with connectors) | mm |
Width | mm | |
Depth (with connectors) | mm |
Weight (Net) | kg | |
11.00 (15.20) |
2.12 |
5.00 |
A+++ |
4.75 / 187 % |
A++ |
3.63 / 142 % |
1 ~230 V 50Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
125 |
14.00 (16.70) |
2.90 |
4.71 |
A++ |
4.43 / 174 % |
A++ |
3.35 / 131 % |
1 ~230 V 50Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
129 |
16.00 (17.80) |
3.43 |
4.57 |
A++ |
3.88 / 152 % |
A++ |
3.23 / 126 % |
1 ~230 V 50Hz |
58 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
129 |
11.00 (15.20) |
2.12 |
5.00 |
A+++ |
4.75 / 187 % |
A++ |
3.63 / 142 % |
3N ~400V 50 Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
127 |
14.00 (16.70) |
2.90 |
4.71 |
A++ |
4.43 / 174 % |
A++ |
3.35 / 131 % |
3N ~400V 50 Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
136 |
16.00 (17.80) |
3.43 |
4.57 |
A++ |
3.88 / 152 % |
A++ |
3.23 / 126 % |
3N ~400V 50 Hz |
58 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
136 |

Power feed |
Noise level (Sound Pressure) | dB(A) |
Noise level (Sound Power) | dB(A) |
Airflow | m3/h |
Diameter of pipes (liquid-gas) | Inches |
Minimum Pipe Length | m |
Maximum Pipe Length (additional charge) | m (g/m) |
Maximum elevation |
Refrigerant |
Refrigerant charge (length without additional charge) | kg (m) |
Compressor |
Dimensions | Height | mm |
Width | mm | |
Depth | mm |
Weight (Net) | kg | |
1 ~230 V 50Hz |
49 |
64 |
4800 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.30 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
1 ~230 V 50Hz |
50 |
65 |
5400 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
1 ~230 V 50Hz |
50 |
67 |
6000 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
49 |
64 |
4800 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.30 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
50 |
64 |
5400 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
50 |
65 |
6000 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
– documentation
Manuals, brochures and other product literature. If you need any more information, please get in touch.
– Outdoor Unit

Nominal capacity (max) | Heating | kW |
Power consumption - nom | Heating | kW |
COP at 7°C ext, 35°C water | (Nominal) |
Energy class rating 35°C |
Seasonal efficiency 35°C | SCOP / ŋs |
Energy class rating 55°C |
Seasonal efficiency 55°C | SCOP / ŋs |
Power feed |
Noise level (Sound Power) | dB(A) |
Diameter of pipes (liquid-gas) | Inches |
Heating operating range | Outdoor temperature | ºC (DB) |
Water outlet temperature | ºC |
Operating range Tank (DHW) | Outdoor temperature | ºC (DB) |
Water outlet temperature | ºC |
Refrigerant |
Refrigerant charge | kg |
Compressor |
Dimensions | Height (with connectors) | mm |
Width | mm | |
Depth (with connectors) | mm |
Weight (Net) | kg | |
11.00 (15.20) |
2.12 |
5.00 |
A+++ |
4.75 / 187 % |
A++ |
3.63 / 142 % |
1 ~230 V 50Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
125 |
14.00 (16.70) |
2.90 |
4.71 |
A++ |
4.43 / 174 % |
A++ |
3.35 / 131 % |
1 ~230 V 50Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
129 |
16.00 (17.80) |
3.43 |
4.57 |
A++ |
3.88 / 152 % |
A++ |
3.23 / 126 % |
1 ~230 V 50Hz |
58 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
129 |
11.00 (15.20) |
2.12 |
5.00 |
A+++ |
4.75 / 187 % |
A++ |
3.63 / 142 % |
3N ~400V 50 Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
127 |
14.00 (16.70) |
2.90 |
4.71 |
A++ |
4.43 / 174 % |
A++ |
3.35 / 131 % |
3N ~400V 50 Hz |
57 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
136 |
16.00 (17.80) |
3.43 |
4.57 |
A++ |
3.88 / 152 % |
A++ |
3.23 / 126 % |
3N ~400V 50 Hz |
58 |
3/8 - 5/8 |
-25 ~25 |
20 ~ 80 |
-25 ~ 35 |
30 ~ 75 |
R-134a |
1.9 |
Scroll DC Inverter |
751 (802) |
600 |
623 (680) |
136 |

Power feed |
Noise level (Sound Pressure) | dB(A) |
Noise level (Sound Power) | dB(A) |
Airflow | m3/h |
Diameter of pipes (liquid-gas) | Inches |
Minimum Pipe Length | m |
Maximum Pipe Length (additional charge) | m (g/m) |
Maximum elevation |
Refrigerant |
Refrigerant charge (length without additional charge) | kg (m) |
Compressor |
Dimensions | Height | mm |
Width | mm | |
Depth | mm |
Weight (Net) | kg | |
1 ~230 V 50Hz |
49 |
64 |
4800 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.30 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
1 ~230 V 50Hz |
50 |
65 |
5400 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
1 ~230 V 50Hz |
50 |
67 |
6000 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
49 |
64 |
4800 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.30 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
50 |
64 |
5400 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
3N ~400V 50 Hz |
50 |
65 |
6000 |
3/8 - 5/8 |
5 |
75 (60) |
30 / 20 |
R410 |
3.40 (15) |
Scroll DC Inverter |
1380 |
950 |
370 |
103 |
where to buy
–Search our network of authorised Hitachi distributors and installers.