Greensource air source heat pumps - SmartHeat

Greensource air
source heat pumps
The latest in advanced,
sustainable heating and hot
water solutions from Worcester

Greensource air source
Cut your heating and hot water costs and reduce
When it comes to providing domestic heating and hot
water solutions which satisfy these demands in every
way, innovative new Greensource air source heat
pumps from Worcester, Bosch Group more than
measure up.
By converting the free and sustainable latent
energy that’s in the air all around us into heat,
the Greensource system delivers green, low-cost,
energy-saving heating and hot water all year round.
Utilising the latent energy in the air:
a sustainable solution
Air – even cold air – is a constant and inexhaustible
source of energy, and Worcester Greensource heat
pumps work very effectively in outside temperatures as
low as -20ºC.
What’s more, this advanced technology is well proven
in Scandinavia and other parts of Europe. So it’s more
than suited to the UK’s comparatively mild winters and
is a highly efficient heating and hot water solution
whatever the season. Installation is a relatively simple
matter too.
Energy-saving options to provide heat all round
The new Worcester Greensource range offers a choice
of two systems: air to air or air to water, both
producing significant savings compared with a
conventional heating system.
Air to air heat pumps are an excellent choice where
external space is limited as they require nothing more
than a suitable outside wall. This makes them ideal for
a wide range of property types, particularly those with
open plan designs.
Greensource air to water is ideal for low-temperature
central heating such as underfloor but works equally
with oversized radiators with flow rates up to 65 º C.
A choice of 3 models with outputs of 6 – 9.5kW is
available together with an internal hot water cylinder
with a capacity of of 151 litres.
Greensource air source heat pumps also come with a
comprehensive, 2 year* warranty – a reassurance of
all the built-in quality and reliability for which
Worcester and Bosch are renowned.
Your questions answered
How do air source heat pumps work?
The technology inside an air source heat pump works
on similar principles to the way a domestic fridge
works. Heat pumps take advantage of the principles of
thermal energy in order to achieve their results.
Both types of air source heat pump operate in a similar
way. The external fan unit draws in the outside air and
converts the latent heat it contains on even the coldest
of days into warm/cold air or hot water, depending on
the type of heat pump.
How efficient are air source heat pumps?
When properly installed, an air source heat pump can
produce up to 4 times more heat energy to the home
than the electrical energy it consumes.
* Terms and conditions apply.

eat pumps.
your carbon footprint.
How is the efficiency of an air source heat pump
measured?
The performance of an air source heat pump is usually
shown as the COP, or Coefficient of Performance. This
relates to the amount of energy extracted from the air
for each unit of energy used to run the pump. An air
source heat pump can provide up to 4kW of energy for
every kW used.
Is there any government funding available for air
source heat pumps?
From time to time the government provides grants for
the installation of renewable technology products. To
find out more visit: www.dti.gov.uk

Greensource air to water heat pumps
By converting the energy from the outside air into
heat and transferring the heat to water so it can then be
used with an existing style central heating system,
Greensource air to water heat pumps are ideal for providing
low cost heating throughout the year.
This gives the advantage of connecting the heat pump to a
new or existing wet system to provide the hot water for
heating. As Greensource air to water heat pumps provide an
outgoing flow temperature of 65ºC, they are ideally suited
for underfloor heating or oversized radiators.
Features
• Energy efficient – COP* of up to 4
• Maximum 65ºC outgoing temperature
• Works down to outdoor temperatures of -20ºC
• Suitable for use with underfloor heating
and oversized radiators
• Indoor integrated cylinder
• Easy to install and maintain
• Designed for connection to all types of wet heating
systems
• Auto defrost function
• Proven technology that saves you money
• No ground-works required
*Coefficient of Performance - the basis of heat pump efficiency.
3 units of environmental energy
+ 1 unit electricity
= 4 units heating energy

How Greensource air to water heat pumps distribute heat
20ºC
22ºC
20ºC
Greensource
air to water
heat pump
Hot water to baths,
showers and basins etc
Greensource
Cylinder
Hot water piping
for radiators
Underfloor heating
18ºC
20ºC
OUTDOOR
UNIT
22ºC
INDOOR
UNIT FEEDS
WARM WATER
TO RADIATORS
20ºC
Greensource air to water heat pump outdoor unit 6kW 7kW 9.5kW
Dimensions w x h x d*
820x1190x640mm 820x1190x640mm 820x1190x640mm
Weight 140kg 145kg 155kg
Outer casing
Galvanised powder coated steel
Emitted/supplied output at +7/35ºC 5.5/1.5kW 7.1/2.1kW 9.6/2.3kW
Emitted output at +7/45ºC 5.1/1.7kW 7.0/2.4kW 8.6/2.8kW
Heat carrier flow nominal 0.19l/s 0.29l/s 0.34l/s
Internal pressure drop heat carrier 5kPa 6kPa 7kPa
Air flow 2200m 3 /h 2200m 3 /h 2200m 3 /h
Electrical consumption fan 0.44A 0.44A 0.44A
Fuse size - Amperes time delay 16 25 25
Electrical supply
230V 1N ~ 50Hz
Compressor
Scroll
Highest outgoing heat carrier temperature 65ºC
Refrigerant filling R-407C 2.0kg 2.3kg 2.4kg
Defrost system
Hot gas with four way valve
HTF connection, clamping ring (mm)
Hose 1" internal thread
Sound levels 53dB(A) 53dB(A) 53dB(A)
*Valves without feet, additionally depending on the adjustment Min. 20mm – Max. 30mm.
Greensource air to water heat pump Indoor unit
Dimensions (w x h x d)
600x1660x615mm
Weight without water
122kg
Weight with water
347kg
Output of the electric heater
4,5kW
Power consumption of the circulation pump
0,2kW
Mains electrical voltage
1x230V N AC 50Hz
Maximal power consumption
4,7kW
Fuse size - Amperes time delay 25
Max. working pressure
2,5 (0,25)bar (MPa)
Volume DHW cylinder/CH
151/55 litres
Expansion vessel size
12 litres
Pump for the heating system G1 Wilo Star RS 25/6-3
Heating fluid pump G2 Wilo Star RS 25/6-3
Indoor unit
Outdoor unit
Greensource Integrated Cylinder for use with
air to water heat pump
The Greensource Cylinder is technically developed to
ensure maximum savings, long life, easy operation
and simple installation.
It is designed for connection to all types of wet-based
heating systems and is also an excellent alternative
for underfloor heating.
Features
• Compact size 600mm sq floor area
• Peak domestic hot water use boost feature
• Hot water capacity of 151 litres
• Built-in electrical supplement to automatically
provide extra heating when required
These products can only be purchased as a package and will
not operate independently

Greensource air to air heat pumps
The Greensource air to air heat pump converts the energy
from the outside air into heat using the same technique as air
to water heat pumps and then circulates warm air internally
to provide a comfortable temperature inside the home.
Where space is limited, Greensource air to air heat pumps
are an attractive alternative for providing energy efficient
heating as the only space requirement is an external wall,
making them ideal for apartments and smaller homes.
As an extra benefit, Greensource air to air heat pumps can
also operate as an air cooler and purifier using Plasmacluster
Ion-technology.
Features
• Energy efficient – COP* of up to 4
• Compact design requiring only an outside wall
• Suitable for a wide variety of property types,
including apartments and conservatories
• Quiet operation
• Easy to install and maintain
• Display with indoor/outdoor temperature
• High efficiency in all temperature ranges
• Can be used to provide cool air in the summer
• Active Ion-technology air purification, ideal for
allergy sufferers
• Auto defrost function
• Proven technology that saves you money
*Coefficient of Performance - the basis of heat pump efficiency.
3 units of environmental energy
+ 1 unit electricity
= 4 units heating energy

How Greensource air to air heat pumps distribute heat
Greensource
air to air
heat pump
(internal unit)
20ºC
22ºC
Greensource
air to air
heat pump
(external unit)
20ºC
20ºC
20ºC
INDOOR UNIT
CIRCULATES
WARM AIR
18ºC
OUTDOOR
UNIT
Greensource air to air heat pump
Dimensions (indoor unit) w x h x d
790x278x198mm
(outdoor unit) w x h x d
780x540x265mm
Weight (indoor unit) 10kg
(outdoor unit)
37kg
Emitted heat output (min/max)
Power consumption in heating mode (min/max)
Emitted cooling effect (min/max)
0.9/6.0kW
0.13/1.7kW
0.9/4.0kW
Power consumption in cooling mode (min/max) 0.15/1.3kW
Air flow – cooling
6.0/10.7m 3 /min
– heating 8.5/12.3m 3 /min
Sound level (indoor unit):
low fan speed cooling/heating
27/35dB(A)
medium fan speed cooling/heating
39/41dB(A)
high fan speed cooling/heating
43/46dB(A)
Sound level (outdoor unit) cooling/heating
Refrigerant R 410
Compressor type
Voltage
49/50dB(A)
1kg
Rotary, direct current,
digitally controlled
230v
Output data applies at 6ºC outdoors, wet bulb 20ºC indoor temperature.
Outdoor unit.
Can be both wall and floor mounted
Remote control
These products can only be purchased as a package and
will not operate independently
Indoor unit

Worcester quality assurance
Only the finest materials and components
are used in the manufacture of all
Worcester products. Combined with
advanced technology and innovative
design, this ensures that your Greensource
air source heat pump will give many years
trouble-free service and excellent longterm
value for money.
Worcester commitment to
sustainable energy
In the light of global warming and climate
change, developing sustainable energy
resources has never been more important.
As the UK’s leading boiler manufacturer,
Worcester is leading the way in the search
for renewable and sustainable energy
solutions which can benefit customers and
the environment.
Global responsibility for nature and
the environment
The Bosch Group operates worldwide and
has been committed to environmental
protection for more than 30 years. Every
Bosch location around the world
prioritises product development in the
interests of the safety of people, the
economical use of resources, and
environmental sustainability.
Useful numbers
Consumer Helpline
Service
(Pre- & Post-Sales)
Tel: 08457 256206
Tel: 08705 266241
Fax: 01905 757536
Fax: 01905 752741
Literature
Tel: 01905 752556
or download instantly
from our website
Renewable phone team: 01905 752780 email: renewable.energy@uk.bosch.com
www.worcester-bosch.co.uk
In partnership with
The Council for
Registered Gas
Installers
Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.
This leaflet is accurate at the date of printing, but may be superseded and should be disregarded if specification and/or appearances
are changed in the interest of continued improvement. The statutory rights of the consumer are not affected.
Part No. 8 716 115 320 A 05/08
Worcester, Bosch Group,
Cotswold Way, Warndon,
Worcester, WR4 9SW
Tel: 01905 754624 Fax: 01905 754619