Yutaki0 pages

Yutaki Heat Pumps

Hitachi Heating

Engineering for tomorrow. And the tomorrow after that.

Yutaki-M, Yutaki-S and Yutaki-S80 sizing guide
A heat pump that uses air as its heat source will perform better as the air temperature increases. The industry standard
for quoting the output and efficiency of an air to water (ATW) heat pump is 7°C external temperature and a 35°C flow
temperature (see Table 1). However, to ensure optimum performance and to reduce electricity costs, it is typical to size
the heat pump to meet the heating load of the property when the external temperature is -7°C with a flow temperature
of 45°C (see Table 2).

Adaptable
Can be retrofitted alongside
an existing boiler or used
stand-alone

Calculate the heat requirement for the property through a Standard Assessment Procedure (SAP) or Energy Planning
Certificate (EPC) and match the output of the heat pump (shown below) to the heat requirement. This is indicative only –
contact Hitachi or an approved Hitachi distributor for an exact quotation.

Renewable energy
Convert 1kW into an impressive
4kW output for economical heating
and domestic hot water

Table 1

Yutaki-M

Compact height
Capacity1 (kW)

Available from only
800mm high

COP

1

Capacity (kW)

RHUE
4A(V)HN-HM

RHUE
5A(V)HN-HM

RHUE
6A(V)HN-HM

-

-

Yutaki-S

RWM
2(H)FSN3E

RWM
3(H)FSN3E

RWM
4(H)FSN3E

RWM
5(H)FSN3E

RWM
6(H)FSN3E

RWM
8(H)FSN3E

RWM
10(H)FSN3E

-

-

RWH
4FS(V)NFE

RWH
5FS(V)NFE

RWH
6FS(V)NFE

-

-

5.1

7.5

9.7 (10.0)

12.0 (12.0)

14.0 (14.0)

19.6

24.0

5.02

4.49

4.27 (4.31)

4.19 (4.27)

4.21 (4.05)

4.45

4.41

Outdoor
Air Temperature 7ºC

COP2

4.0

6.5

7.3 (10.0)

8.7 (12.0)

9.4 (14.0)

14.8

18.0

2.65

2.46

2.49 (2.42)

2.51 (2.40)

2.47 (2.35)

2.63

2.61

Yutaki-M

2

Money saving

RHUE
3AVHN1

Yutaki-S80

Water Flow Temp.
35ºc

-

-

RHUE
3AVHN1

RHUE
4A(V)HN-HM

RHUE
5A(V)HN-HM

RHUE
6A(V)HN-HM

-

Water Flow Temp.
45ºc

New Builds

Yutaki-S

RWM
2(H)FSN3E

RWM
3(H)FSN3E

RWM
4(H)FSN3E

RWM
5(H)FSN3E

RWM
6(H)FSN3E

RWM
8(H)FSN3E

RWM
10(H)FSN3E

A screed drying function
is ideal for new builds

-

RWH
4FS(V)NFE

RWH
5FS(V)NFE

RWH
6FS(V)NFE

-

-

Yutaki-S80
Capacity (kW)
1

COP1
Capacity2 (kW)

Introducing the Yutaki-M air source heat
pump with 400% efficiency as standard
Cheaper to install than
ground-source heat pumps,
Yutaki-M converts 1kW
consumption into an impressive
4kW output making it economical
for heating and domestic hot water.
Not to mention reducing CO 2 emissions
by up to 70%*.
A space-saving, outside heat pump
communicates with an intuitive, wireless
remote control to adjust room temperatures
efficiently. And in the spirit of keeping things
simple, there’s even a ‘One-Touch’ holiday button
to keep your home from getting chilled while you're away.

COP

2

Outdoor
Air Temperature 7ºC
Outdoor
Air Temperature -7ºC

4.7

7.1

9.2 (10.0)

11.3 (12.0)

13.3 (14.0)

18.4

22.6

3.51

3.41

3.24 (3.35)

3.09 (3.22)

3.18 (3.13)

3.43

3.40

3.8

6.2

6.8 (10.0)

8.2 (12.0)

8.85 (14.0)

14.2

“ The judges felt Hitachi provided an excellent
submission, a great product and the way forward.”
Hitachi’s Yutaki M Heat Pump

15% of the emission cuts planned by 2020 will be through
domestic small-scale renewable energy. With incentives
from the UK Government – such as the Renewable Heat
Incentive (RHI) - (along with a VAT rate of 0% for new
build and 5% in retro fit applications) - this represents
a great opportunity to update an existing heating system,
or incorporate as part of a new build.

2.10

2.17

2.18 (2.30)

2.10 (2.30)

2.01 (2.25)

2.17

Suitable for both refurbishment projects and new
installations, the Yutaki family of heat pumps can be
connected to all common radiators, underfloor heating
systems, convectors and water heaters.

Yutaki heat pumps work by transforming energy from the outside air into heat, meaning
every 1kW of electricity used to power the heat pump is capable of providing up to 5kW
of energy in a well-insulated home – helping to reduce heating bills by up to 60% and
cutting CO2 emissions by up to 70% compared to traditional boiler-led systems.

16.6
2.16

Flexible solution

For traditional radiators, under
floor heating and domestic hot
water up to 60º

Yutaki-M, Yutaki-S
and Yutaki-S80
air source heat pumps

-

Outdoor
Air Temperature -7ºC

Our heat pumps use significantly
less fossil fuels, helping you save
up to 60% on running costs

Table 2

Heating Manufacturer of the Year

The Benefits
It is important that the design of the heat emitter - whether for underfloor heating or radiators - is done correctly to
ensure best performance for the heat pump. These tables show the approximate property size for each Yutaki heat
pump, based on a flow temperature of 45°C and an external temperature of -7°C:

For homeowners

Yutaki-M

RHUE
3AVHN1

RHUE
4A(V)HN-HM

RHUE
5A(V)HN-HM

RHUE
6A(V)HN-HM

-

-

Yutaki-S

RWM
2(H)FSN3E

RWM
3(H)FSN3E

RWM
4(H)FSN3E

RWM
5(H)FSN3E

RWM
6(H)FSN3E

RWM
8(H)FSN3E

RWM
10(H)FSN3E

Yutaki-S80

Year Property
Built

-

-

-

RWH
4FS(V)NFE

RWH
5FS(V)NFE

RWH
6FS(V)NFE

-

-

95 m2

155 m2

170m2 (250m2)

205m2 (300m2)

221m2 (350m2)

355 m2

415 m2

76 m2

124 m2

136m2 (200m2)

164m2 (240m2)

177m2 (280m2)

284 m2

332 m2

48 m2

78 m2

85m2 (125m2)

103m2 (150m2)

111m2 (175m2)

178 m2

208 m2

38 m2

62 m2

68m2 (100m2)

82m2 (120m2)

89m2 (140m2)

142 m2

166 m2

32 m2

52 m2

57m2 (83m2)

69m2 (100m2)

74m2 (117m2)

118 m2

138 m2

2010
2005 - 2010

Water Flow Temp.
45ºc

1995 - 2005
1970 - 1995
Pre 1970

Outdoor Air Temp.
-7ºC

Yutaki-S80 preliminary data

❚t
❚t
❚t
❚t

Modular design
Hot water recovery time same as a boiler*
DHW Legionella Protection Program

Easy-to-use remote wireless controller with one-touch t
holiday button and frost protection as standard
❚t Lower fuel bills

❚t Access to Government incentives such as the
Renewable Heat Incentive

❚t Reduced carbon emissions
❚t Self-contained heating and hot water solution
❚t Suitable for new build and renovation projects - can
even be used with an existing boiler

For help deciding which Yutaki heating solution is right for you, contact Hitachi.

*compared to traditional boiler-led systems

Hitachi Direct Sales

United Kingdom

Ireland

01628 585 394
aircon.enquiries@hitachi-eu.com

+353 1216 4406
aircon.ireland@hitachi-eu.com

❚t Up to 5x more efficient than a traditional gas boiler
❚t Satisfy renewable energy planning requirements
❚t 5-year warranty.
* Yutaki-S80 only

For installers
❚tt Simple and fast installation with no refrigeration
handling required**

❚tt Easy servicing and maintenance
❚tt Inverter technology means heat output matches the
heating load of the property

❚tt MCS Approved
❚tt High COPs - market-leading COP of 5.0 (2HP model)
❚tt Weather-compensation control
❚tt World-renowned, highly-reliable Hitachi high pressure
scroll compressor

❚tt Outputs from 5kW to 24kW
❚tt From 600mm compact height options
❚tt Integrate with other renewable technologies such as
solar thermal

❚tt 5-year warranty.
** Yutaki-M only