SolarHeatingBrochure

SolarHeatingBrochure
CI/SFB (53)
Tried. Tested. Trusted.
Solar Thermal
The low carbon water heating system
A name y u
can trust
With an unmatched reputation for quality, reliability and innovation,
the Dimplex brand is well known in both public and private sectors
where the brand has become synonymous with a commitment to
excellence and customer satisfaction.
Recognising the need to develop and deliver solutions to meet increasingly stringent
energy standards, Dimplex has made significant product research and development
investment to grow a portfolio of renewable energy technology products. Now with one of
the widest ranges of building integrated renewables available from a single manufacturer
in the UK, we continue to expand our expertise and product ranges to meet the needs
of our customers in both the domestic and commercial environments..
2
Contents
4
Renewable energy in a
changing world
5
Why choose solar
hot water
6-7
The natural solution
8
How solar hot
water works
9
Factors to consider
Our experience
Renewable technologies such as
solar hot water systems, ground and air
source heat pumps, solar photovoltaics,
heat recovery systems and low energy
radiators are not necessarily new,
but expertise in the UK of how to most
practically and efficiently apply
them is – especially where multiple
technologies need to be applied to meet
increasingly demanding building
energy targets. But for Dimplex there’s
nothing new about developing low
carbon solutions – as part of the
worldwide Glen Dimplex Group, we have
been producing innovative heat pumps
for over 30 years with thousands of
installations throughout Europe.
Committed to developing our building
integrated renewables product portfolio,
our technical sales and in-house design
teams work with housing developers,
housing associations, consulting
specifiers, local authorities and expert
installers to ensure that we deliver
the most effective renewable energy
solutions, whatever the building
design requirement.
10-11 Dimplex solar packages
12-13 Flat plate collectors
14-15 Evacuated tubes
16-17 Controllers, pump
stations and accessories
18-19 Solar cylinders
20-21 Sizing guide
22
FAQs
23
Support/Warranty
3
Renewable energy
in a changing world
The threat to the planet from climate change, depletion of our natural energy resources and
concern over the long term security of our energy supplies, means that energy efficiency and
carbon dioxide emissions reduction has never been higher on social and political agendas.
With the energy used to heat, light and
run buildings accounting for nearly half
of the UK’s carbon dioxide emissions,
it’s no surprise that a raft of European
Directives, national legislation and
government policy across the domestic
and commercial building sectors now
exists to reduce the long term energy
and carbon impact of our buildings on
the environment.
As part of EU-wide action to increase
the use of renewable energy, the UK
has committed to sourcing 15% of its
energy from renewable sources by
2020 and building integrated renewable
technologies such as solar hot water
solutions, heat pumps, and solar
electricity will all play an important
part in achieving these targets.
UK carbon emissions by sector
F
G
UK CO2 reduction target trajectory
UK Net carbon account
projection 1990-2022
H
H
E
D
900
A
A Business 31%
B Transport
24%
C Public
4%
D Domestic
24%
E Agriculture
8%
F Industrial
3%
G Waste Management 4%
H Exports
2%
800
Million tonnes carbon dioxide equivalent
D
Of course to deliver sustainable,
low energy, low carbon buildings,
designers and specifiers must take
an increasingly holistic approach to
reducing building energy demand
and the application of renewable
energy technologies. But as energy
standards from policies such as the
Code for Sustainable Homes increase –
for example domestic new build
requirements to be zero carbon by 2016 –
the integration of multiple renewable
technologies to provide low carbon heating,
hot water and electrical power will be
essential in achieving these targets.
E
F G
C
Kyoto target (2008-12)*
700
600
Carbon Budget 1
500
Carbon Budget 2
Carbon Budget 3
400
300
B
200
100
0
1990
C
2000
2005
A
2010
*Kyoto target is measured against the 1990 base year of 779.9 MtCO2e
B
Source DECC – End user carbon emissions for 2008.
4
1995
2015
2020
Why choose
solar hot water
In the context of ever-rising energy costs, climate change and changing legislation, the need for a
heating and hot water technology that is future-proof, cost-effective and able to use an unlimited,
sustainable source of energy is essential.
It’s time to harness the
sun’s energy
Every year the sun provides over 8000
times as much energy as we consume
worldwide and in the UK alone we
receive between 900 and 1200kWh
of energy per m2 of land per year.
On average, every home spends 20-25%
of its combined annual energy bills on
water heating. In the UK a well designed
solar water heating system can provide
almost all the hot water for a home during
the summer months and on average
around 50-60% year round. This is why
solar water heating systems are one of the
most cost-effective and environmentallyfriendly renewable energy solutions
available, reducing fuel bills and building
carbon dioxide emissions.
Low carbon hot water solution
Future proof energy costs
Whenever fossil fuels such as coal,
oil or gas are burnt,carbon dioxide
is released. CO2 is the principal
contributor to the green-house effect
which is leading to long term climate
change. However as solar water heating
can provide as much as 60% of a
building’s annual hot water demand
from renewable energy, building carbon
emissions can be significantly reduced,
particularly in new homes where water
heating is fast becoming the largest
source of energy use. This has an
obvious benefit when considering
Building Regulations Part L compliance,
planning obligations requiring minimum
contributions from renewable energy or
Code for Sustainable Homes ratings.
Using renewable solar energy means that
running costs compared with traditional
fossil fuelled water heating systems
can be reduced. More importantly, using
free energy from the environment futureproofs the system against fossil fuels
as they become ever more scarce and
their price inevitably continues to rise.
Annual contribution from
Solar Water Heating
UK Solar Radiance
Annual Contribution from Solar Water Heating
5º
60º
0º
90
900
80
70
55º
1000
Collector contribution (%)
10º
100
60
50
40
30
1100
20
10
1200
0
J
F
M
A
M
J
J
A
S
O
N
D
Month of the year
Amount of hot water supplied by solar thermal for the annual hot
water demand of a typical 4 bedroom house.
5
The natural solution
...with so many applications
Increasingly stringent legislation and escalating fuel costs make solar hot water a very attractive option.
6
Housing developments
Social housing
Home owners
Solar thermal hot water systems can
provide as much as 60% of the annual
hot water demand from carbon-free solar
energy, making a significant contribution
towards reducing building CO2 emissions
and running costs. This makes solar
thermal an ideal choice for developers
seeking to achieve Building Regulations
Part L and Code for Sustainable Homes
compliance as well as the increasingly
frequent planning requirements for new
developments to deliver a proportion of
their energy from renewable sources.
As more and more house purchasers
become interested in low carbon heating
and reducing their dependency on fossil
fuels, housing developers have found
specifying easy to install solar thermal
systems at the development stage makes
developments more attractive
and saleable to future purchasers.
Solar thermal hot water systems
are increasingly being specified
for installation on social housing
developments for both new build and
refurbishment projects. By providing a
high proportion of hot water demand
from free solar energy, Dimplex solar
thermal systems help to reduce tenant
running costs and contribute significantly
towards eliminating fuel poverty. Simple
to fit and easy to integrate into the build
program, our systems significantly
reduce building carbon emissions and
so represent a cost effective way to
meet building regulations and Code for
Sustainable Homes targets. When the
second phase of the Renewable Heat
Incentive (RHI) is launched for domestic
properties, housing associations and
social landlords that have installed
solar thermal systems on their housing
stock can expect to benefit from RHI
tariff payments to offset the costs of
installation and generate a regular
income over the duration of the scheme.
Easy to retro fit into existing homes
– no planning permission is required,
installing a Dimplex solar thermal hot
water system can make a significant
contribution towards reducing long
term utility bills, maintenance costs
and reliance on fossil fuels as well as
reducing building carbon emissions
and therefore a property’s carbon
footprint. When the second phase of
the Renewable Heat Incentive (RHI)
is launched for domestic properties,
home owners can expect to benefit
from RHI tariff payments to offset the
costs of installation and generate a
regular income over the duration of
the scheme. A visual statement of the
home owners’ green credentials, a solar
thermal system also contributes towards
a higher rated Energy Performance
Certificate (EPC) for the property which
can potentially improve its saleability
and increase its value.
Self Build
Properly specified and installed, solar
thermal hot water systems can provide
as much as 60% of the annual hot water
demand of a property from carbon-free
solar energy making a considerable
contribution towards Building Regulations
Part L compliance, particularly in
contemporary styled homes with large
areas of glazing which are subject to
large space heating heat losses. When
the second phase of the Renewable Heat
Incentive (RHI) is launched for domestic
properties, home owners can expect
to benefit from RHI tariff payments to
offset the extra build costs and generate
a regular income over the duration of
the scheme. A visual statement of the
home owners’ green credentials, a solar
thermal system contributes towards
a higher rated Energy Performance
Certificate (EPC) for the property which
can potentially improve its saleability and
increase its value as well as reducing
long term heating bills and reliance on
fossil fuels.
providing carbon free hot water that futureproofs the business against rising energy
costs. Dimplex can specify large solar
thermal systems, up to 10 flat panels or
70 evacuated tubes connected in series
and any number of arrays connected
in parallel which are ideal for premises
with high water usage in the summer
months such as lidos, sports clubs, hotels
and residential accommodations such
as nursing homes. For building owners,
solar thermal systems now offer an
extra financial advantage through the
Renewable Heat Incentive which will
pay system owners a regular income
for generating hot water over a period
of 20 years. Solar thermal is a reliable,
proven technology which provides a visual
statement of a company’s green credentials
encouraging wider energy savings.
Public and Community
Installing a solar thermal hot water
system on a community building
provides the ability not only to reduce
heating bills and dependency on fossil
fuels, but to display a community’s
commitment to reducing greenhouse
gases. As public sector buildings
are eligible for the Renewable Heat
Incentive, in addition to reduced utility
bills, public and community buildings
using solar thermal systems to produce
their hot water will generate a regular
income over 20 years through RHI tariff
payments. Capital funding to offset
installations costs may also be available
through the Community Energy Saving
Program (CESP).
Leisure and Commercial
The increasing demands and constraints
of Build Regulations are forcing more and
more developers to look at innovative
ways of balancing the “energy model” for
commercial premises. Easy to specify
and install at the build stage and with
low maintenance costs, solar thermal
systems provide a simple, reliable and
cost effective solution in these instances,
7
How solar hot water works
Solar energy is available in abundance all around us. Every year the sun provides
8000 times more energy than we consume globally ready for use whenever you need it.
Solar water heating systems harness this freely available solar radiation to efficiently and
effectively heat water stored in a cylinder ready for use whenever you need it.
Solar Thermal with a secondary heat generator
One system, adaptable for many applications
Solar systems are made up of three key elements which work seamlessly together to convert the sun’s energy into hot water.
8
1. Collector
2. Heat transfer system
(hydraulic pack)
3. Storage cylinder
Roof or facade mounted or free standing,
the collector converts light energy from
the sun into heat energy which
is transferred to the heat transfer fluid
which circulates through the system.
The pump station circulates the heat
transfer fluid through the solar collector
and on to the heat exchanger coil
in the water storage cylinder. The
pump is automatically managed by a
solar controller, which measures the
temperature of the fluid in the solar
collector and the water in the cylinder
in order to determine if the system
needs to operate.
The heat from the transfer fluid is
transferred through the coil to the
stored water. Heated water rises to
the top of the cylinder and is available
for use. The now cold heat transfer
fluid is pumped back to the collector
for reheating. The cylinder has a
supplementary heat source to provide
back up for times when insufficient solar
energy is available.
Factors to consider
System siting and orientation
The location and orientation of the
collectors is important to ensure as
much sunlight as possible is collected
to maximise system performance.
B
A
Before choosing collector type, it is
essential to decide where it will be
located on the property.
Dimplex collectors are highly versatile
and can be successfully installed
either east or west facing with only a
20% loss of captured energy.
E
C
For best efficiency, the collectors
should be installed facing south at
an angle of 35° from horizontal.
H
F
D
G
Flat plate
On roof
In roof
Evacuated
tube
Standard
√
√
√
B
Standard
√
X
√
C
Possible using multiple basic kits but with additional components
√
X
X
D
Standard
√
X
X
E
Possible using multiple basic kits but with additional components
√
X
X
F
Standard
X
X
√
G
Possible with additional parts supplied by installer
√
X
√
H
Possible with additional parts supplied by installer
√
X
√
Ref
Solution type
A
Slope
95-100%
90-95%
85-90%
80-85%
75-80%
West
South
East
70-75%
Change in performance due to panel orientation
9
Dimplex solar packages
Dimplex makes solar specification simple by combining all the necessary components for a
standard installation into easy to purchase kits. Each component has been carefully selected
for its quality and suitability for the UK climate and building stock to provide complete
confidence in system performance both for installers and users alike. With a range of purpose
designed solar cylinders in sizes suitable for a variety of properties and a choice of flat plate or
evacuated tube collectors with a selection of roof mounting options, Dimplex has a solution for
every solar water heating requirement.
For maximum efficiency the complete package can be custom designed by our heating design team for your application.
Collectors and hot water cylinders will be sized to meet the requirements of the property and site orientation plans will be
provided to aid installation.
10
Roof kits
High quality flat plate or evacuated tube collectors are provided with all the required mounting components.
Flat plate:
Evacuated tube:
•
•
•
•
•
•
Choice of 1, 2 or
3 panel collector kits
On roof mounting for
plain tile, corrugated tile,
slate tile or coach bolts
Integrated roof mounting
(SOLC220 only) for tile or
slate roofs
Free standing panels
for flat roofs or ground
mounting
Hydraulic packs
Suitable for the majority of domestic
systems with a static height
up to 7m. Different packs
for flat plate and evacuated
tube systems.
Each pack includes:
• Pump station
• Controller
• Heat transfer fluid
• Expansion vessel and fixing kit
Choice of 20 or 30 tube kits
On roof mounting for
tiled or slate roofs,
façade or flat roofs
Integration with
heat pumps
Ideal for properties with high
summer water demand
compared to the standard
heating load, such as well
insulated houses or sports clubs,
the SST 25 module provides
the seamless integration of
Dimplex solar thermal
systems and heat pumps.
Range of cylinders
Available with dual coils for use
with a secondary heat source,
such as a boiler, or a single coil and
dual immersions for direct electric
systems. EC-Eau dedicated solar
cylinders are available in 175, 210,
250 and 300 litre capacities all with
external expansion vessel to
maximise stored water content.
A 300 litre twin coil model is
available for use with heat pumps.
11
Flat plate collectors
The Dimplex SOLC201 and SOLC220 high quality flat plate solar collectors offer high outputs
coupled with a variety installation options making them suitable for a wide range of domestic and
commercial applications. Robust and hardwearing, the SOLC201 and SOLC220 deliver excellent
levels of performance and efficiency and can be connected in series in either horizontal or
vertical orientation to suit the available roof space.
Both collectors consist of a laser welded
meander pipe and aluminium absorber
sheet, offering optimum heat transfer
combined with low weight; covered
with 3.2mm of low iron safety glass
and encased in an aluminium frame.
The anthracite frame provides lightweight
protection for the absorber whilst
blending with the roof and the safety
glass covering is tested to EN 12975-2
impact tests offering peace of mind in
extreme weather conditions such as hail.
Aluminium, anthracite
powder coated frame
provides lightweight
protection for the absorber
and blends with the roof
Durable weather
resistant safety glass
Selectively coated aluminium absorber
sheet provides optimum heat transfer
combined with low weight
Laser-welded copper meander
pipe for optimum heat transfer
Rock wool thermal insulation
to rear of absorber ensures
captured heat is not lost
3.2mm low iron
solar glass
maximises
transmission
Patented absorber retention
ensures optimum position
in all installation situations
Key features:
•
•
•
•
•
•
•
•
•
•
12
Suitable for portrait or
landscape mounting
Multiple panels can be
connected in series
Easy to install with Dimplex
roof fixing kits:
• Slate
• Tile
• Coach bolts
• Flat Roof
• Free standing
• Roof integrated (slate or tile)
SOLC220 only
Seamless in appearance, especially
with roof integrated installation
Reliable in operation – no vacuum
to lose
Robust – not susceptible to natural
breakage, tested to EN 12975-2
Not prone to overheating
Low maintenance – only occasional
cleaning required
10 year warranty
Solar Keymark approved
SOLC220
SOLC201
Specifications
Performance data(1)
Dimensions
Construction
Zero heat loss efficiency ŋ0
%
Operating levels
78.1
74.8
Heat loss coefficient a1
W/m /k
3.83
3.93
Width
mm
1150
1058
Length
mm
1870
1908
Height
mm
95
75
Absorber area
2
m
1.972
1.825
Aperture area
m2
1.972
1.825
Gross collector area
m
2.151
2.019
Weight (empty)
kg
34
29
Liquid content
l
1.73
1.25
Collector connections
Double o-ring
Compression
Pipe connections
3/4 inch
22/18mm
2
aluminium/copper
Absorption
%
95
92
Emission
%
5
5
Peak power
W
1540
1365
Max operating pressure
Bar
10
10
Nominal flow rate
l/min
2
2
Stagnation temperature
°C
202
199
Max. collector array (series)
m2
20 (10 collectors)
8 (4 collectors)
Structured
Clear
Glass
Cover
Insulation
Installation
Roof mounting
options
SOLC201
2
Material
Absorber
SOLC220
Thickness
mm
Transmission
%
3.2
91
Material
Rockwool
Thickness
mm
Min slope
°
°
Max slope
85
50
30
20
90
Corrugated tile
√
Plain tile
√
Slate
√
Sheet
√
Free standing
√
In roof tile
√
X
In roof slate
√
X
(1)
Related to aperture area
13
Evacuated tubes
Dimplex evacuated tubes have been specifically designed for Northern European climates to
provide an extremely efficient transfer of solar energy to heat, offering a highly effective solar
hot water solution for a wide range of applications.
Our evacuated tube collectors employ the
direct flow principal rather than heat pipe
and so are extremely versatile. They can
be mounted in almost any orientation,
including flat on the roof or ground, as no
minimum slope angle is required* offering
a wider range of applications over flat
plate collectors. Additionally the tubes
can be individually rotated towards the
angle of incidence to maximise efficiency,
which is ideal in situations where the
collectors cannot be sited in the optimal
south facing position.
Direct Flow Principal:
• Manifolds and tubes are hydraulically
connected (ie heat transfer fluid flows
through the pipes in the absorber tube)
• Offers great versatility in system
orientation / mounting position
Key features:
• Suitable for domestic and
commercial applications
• Available as 20 and 30 tube kits
which can be connected to create
systems of up to 70 tubes
• Easy to install – “one man job”
• Roof mounting suitable for a variety
of applications:
• Tiled roof
• Slate roof
• Flat roof (collector laid flat)
• Façade mounting
• Full vacuum direct flow tube
(vacuum of 10-6 mbar) offering highly
efficient insulation
• Innovative high mechanical strength
glass-to-metal seal – protects
vacuum in the long term
• Tubes can be angled for
optimal positioning increasing
thermal efficiency on
sub-optimal facing locations
• Highly efficient at low
incidence angles
• Easy “plug in connection”
for quick installation and ease
of tube replacement
• 10 year product warranty
• Solar Keymark approved
SOLCDF22/ SOLCDF32
*
14
We recommend mounting with a minimum slope of 2 to 5°
Specifications
Performance data(1)
Dimensions
Construction
SOLCDF22
Zero heat loss efficiency ŋ0
%
Heat loss coefficient a1
W/m /k
77.6
1.936
2
Width
mm
1500
2250
Length
mm
2164
2164
Height
mm
120
120
Absorber area
m
1.9
2.8
Aperture area
m2
2.03
3.05
Gross collector area
m2
3.3
4.9
Weight (empty)
kg
45
68
Liquid content
l
2.64
3.96
2
Collector connections
Pipe connections
Double o-ring
mm
15
Material
Absorber
Operating levels
Absorption
Copper
%
Emission
%
Peak power
W
Max operating pressure
Bar
Nominal flow rate
l/min
96
4
1578
2368
10
2
3
Stagnation temperature
°C
192
Max. collector array (series)
m2
70 tubes
Cover
Glass
Insulation
Vacuum
Roof mounting
options
SOLCDF32
1.8mm hail resistant soda
lime glass
mbar
10-6
Tiled roof
√
Slate roof
√
Flat roof or ground
√
Façade
√
(1)
Related to aperture area
15
Controllers
Dimplex solar hot water systems are available with a choice of control options, all of which provide:
•
•
Simple end-user interface.
Temperature display of collector
and top and bottom of cylinder,
sensors included.
•
•
Stagnation indicator and system
shut down.
Extremely low 1W self power.
•
Uses pump speed control to reduce
pump toggling to increase system life
and reduce energy consumption
Holiday function and anti-freeze
function.
•
SOLCU1
SOLCU2
SOLCU3
•
For use with a single array of
panels with one storage tank.
•
•
•
3 inputs and 1 output.
Allows more complicated
set-ups than the SOLCU1 such
as east-west facing panels,
swimming pool heat exchangers,
dual coil solar heating and
solar heating of two
DHW cylinders.
•
5 inputs and 2 outputs.
Can be combined with a
SOLFM120 or SOLFM240 flow
meter to display the heat
generated in kWh. The data is
recorded to an SD card which
can then be imported to a
spreadsheet programme
such as Excel.
•
6 inputs and 3 outputs
SOLCU1
SOLCU2
SOLCU3
Dimension A (mm)
137
170
170
Dimension B (mm)
38
47
47
Dimension C (mm)
134
170
170
Accessories
A complete range of accessories is
available to make installation and
maintenance quick and easy.
Dimplex solar thermal accessories have
been specifically selected to cope with
the higher temperatures and pressures
that can occur in a solar thermal system.
Accessories are suitable for both flat
plate and evacuated tube systems.
16
Air separator
Heat transfer medium test kit
If you choose not to use the flush and
fill pump, the air separator will remove
air from the heat transfer fluid during
commissioning making installation quicker.
Ideal for the annual maintenance check,
this test kit provides everything required
to check the frost protection and pH
of the heat transfer fluid.
Flow meter
For direct connection to the SOLCU2
or SOLCU3 in order to give an accurate
measurement of the energy captured.
SOLFM120 from 1 to 20l / min and
SOLFM240 from 2 to 40l / min.
Pump Station
The pump station transports the solar energy from the collector to the domestic hot water cylinder by circulating the heat transfer
fluid through insulated pipes. To ease installation Dimplex offer a choice of pump stations, which can be used with any of our
collector kits, to provide options suitable for a range of applications and budgets.
Standard Pump Station –
SOLPU0
Premium Pump Station –
SOLPU1 or SOLPU2
•Fully insulated 1 way pump unit
•Full metal thermostat in flow
•Integrated ball valve with no
return valve
•Pump with 6m Head
•Flow meter – 1-11l
•Solar approved pressure relief
valve – 6 bar
• Integrated flush and fill point
• 3 part full body insulation
•Fully insulated 2 way pump unit
•Full metal thermostats in flow and
return (0-160oC)
•Pump with 6m head (SOLPU1) 7m
head (SOLPU2)
•Solar approved pressure relief
valve – 6 bar
•High temperature pressure
gauge 0-6 bar
•Integrated non return valves in flow
and return, removing the need for a
2 port valve in the solar loop
•Integrated air separator
• Integrated flush and fill point
• Full body insulation
•Variable standard connection
ports included
SOLPU1
Flexible hoses
Flush and fill pump
Available in 10, 15 or 25m lengths,
the flexible stainless steel hoses come
complete with insulation, sensor cable
and temperature resistant fixings enabling
quick installation. Fits directly on to pump
station and the 0.8m flexible hoses from the
SOLC201 and SOLC220 collectors.
Ideal for installers who will be
commissioning more than one system.
This pump makes it easy to flush the
primary pipework of air and charge the
system to the required operating pressure.
The built-in filter combined with powerful
pump removes any debris which means
that a water pre-flush is not required.
17
EC-Eau Solar Cylinders
Dimplex EC-Eau solar cylinders provide highly efficient hot water storage for a variety of
solar thermal applications and are designed specifically to work seamlessly with Dimplex solar
thermal systems. Featuring a purpose designed solar coil to maximise heat transfer of the
generated solar energy to the stored water, EC-Eau solar cylinders are available in choice
of single or dual coil options.
Sustainable Material
•
Inner vessel manufactured from
premium grade Duplex stainless steel:
•
Environmentally Sound
Performance
Lightweight yet ultra high strength
and stress/corrosion resistant,
ensuring long cylinder life
•
Designed for use with renewable
sources of heat production – heat
pumps and solar thermal systems
•
Side hot water draw off connection,
minimises heat losses through the
top of the cylinder
•
60mm of injected polyurethane
foam insulation
•
Exceeds ‘CHESS’ best practice
standards for low heat loss and
heat recovery
•
Completely void free, including
insulation around immersions
and thermostats
•
100% recyclable
•
No need for sacrificial anode
•
25 year warranty
•
HIPS/ABS outer cladding
•
Produced from 100%
recycled material
•
Hard wearing, flexible and
damage resistant
•
CFC/HCFC free injected foam
insulation
•
•
High proportion of materials
(excluding insulation) by
volume recycled
Recessed immersion heater and
thermostat housings reduces
heat loss
•
Large surface area coil for use with
heat pumps (ECS 300 HPST – 580)
•
Up to 125l dedicated solar volume
(ECS ST models) to maximise use
of renewable energy
Benefits:
•
Mains pressure hot water
• For invigorating showers
•
Superior Operational
Performance
High flow rates
• For quick filling baths and
simultaneous supply of water
to all bathrooms
•
Fast reheat
•
High flow rates for efficient hot
water delivery
•
•
Corrugated coil construction
maximises surface area while
maintaining high usable volume
•
Light and easy to handle for easy
installation
•
Surface mounted thermostats and
sensors for easy installation and
maintenance/replacement
•
Supplied complete with inlet safety
group and external expansion vessel
•
All connections accessible from
the front
• For freely available hot water
•
Well insulated
• Minimises heat loss and energy
consumption/running costs
•
Low maintenance
• No hidden costs
•
Duplex stainless steel
• Excellent corrosion resistance
and long life
• 100% recyclable
•
A complete package
• Just add pipework
•
25 year guarantee
• Peace of mind
18
EC-Eau Heat pump
cylinder shown
Powerful showers and fast
filling baths
Indirect solar cylinders
Dimensions
Model
ECSi175ST-580
ECSi210ST-580
ECSi250ST-580
ECSi300ST-580
Height
(mm)
Diameter
(mm)
T&P
Valve
(mm)
Solar Coil
return
(mm)
Solar
Coil flow
(mm)
Indirect
Coil
return
(mm)
Indirect
Coil
flow
(mm)
Immersion
(mm)
Thermostat
1 (mm)
Thermostat
2 (mm)
Weight
empty
(kg)
Weight
packaged
(kg)
1280
580
1050
190
525
740
995
580
330
847
37
49
1505
580
1275
190
525
837
1052
615
330
940
40
53
1780
580
1550
190
525
905
1120
640
330
1012
47
60
2080
580
1850
190
525
992
1207
640
330
1095
52
56
All measurements are taken from the bottom of the cylinder to the centreline on the component
Performance
Model
ECSi175ST-580
ECSi210ST-580
ECSi250ST-580
ECSd300ST-580
Capacity
(litres)
Indirect
Heated
Volume
(litres)
Dedicated
solar
volume
(litres)
Aux coil
size
(kW)
Aux coil
surface
area (m²)
Solar
coil
size
(kW)
Solar coil
surface
area (m²)
Number
of
immersions
Aux
Reheat
(mins)
Solar
Reheat
(mins)
Heat loss
in 24hrs
(kWh/ 24hr)
1.12
175
80*
95**
20*
0.8
23*
1.1
1
12*
23*
210
100*
110**
20*
0.8
22*
1.1
1
15**
26*
1.41
250
140*
110**
17*
0.8
19*
1.1
1
24*
35*
1.51
300
175*
125**
18*
0.8
20*
1.1
1
31*
42*
1.96
* Determined in accordance with EN12897-2006
** Determined in accordance with KIWA document for unvented hot water storage cylinders
to the requirements of the UK building regulations, Annex D
Direct solar cylinders
Dimensions
Model
ECSd175ST-580
ECSd210ST-580
ECSd250ST-580
ECSd300ST-580
Immersion 2
(mm)
Thermostat
(mm)
Weight
empty
(kg)
Weight
packaged
(kg)
630
895
330
34
45
724
1117
330
38
49
525
790
1350
330
44
57
525
880
1620
330
50
54
Height
(mm)
Diameter
(mm)
T&P Valve
(mm)
Solar Coil
return (mm)
Solar Coil
flow (mm)
Immersion 1
(mm)
1280
580
1050
190
525
1505
580
1275
190
525
1780
580
1550
190
2080
580
1850
190
All measurements are taken from the bottom of the cylinder to the centreline on the component
Performance
Model
ECSd175ST-580
ECSd210ST-580
ECSd250ST-580
ECSd300ST-580
Capacity
(litres)
Auxiliary
Heated
Volume
(litres)
Dedicated
solar volume
(litres)
Solar coil
size (kW)
Aux coil
surface area
(m²)
Number
of
immersions
Aux Reheat
(mins)
Reheat
(mins)
Heat loss
in 24hrs
(kW/24hr)
175
100*
75**
24*
1.1
2
101*
21*
1.12
210
115*
95**
22*
1.1
2
128*
27*
1.41
250
151*
100**
22*
1.1
2
166*
33*
1.51
300
194*
105**
21*
1.1
2
208*
43*
1.96
* Determined in accordance with EN12897-2006
** Determined in accordance with KIWA document for unvented hot water storage cylinders
to the requirements of the UK building regulations, Annex D
19
Sizing guide
2
ECSd175ST-580
ECSd210ST-580
ECSd250ST-580
ECSd300ST-580
ECSi175ST-580
ECSi210ST-580
ECSi250ST-580
ECSi300ST-580
ECS300HPST-580
DIRECT
Select a cylinder
INDIRECT
1
HP
Total water
usage in
24 hrs (litres)
Select a collector
50
65
80
95
110
125
140
ECSd175ST-580
ECSd210ST-580
ECSi175ST-580
ECSi210ST-580
1 x 2.2m2 collector
and roof mounting kit
SOLC 220
Flat Plate
collectors
Corrugated tile
Plain tile
Slate
Coach bolts
Integrated for tiles
Integrated for slate
Integrated with flashing, tile
Integrated with flashing, slate
Free standing
SOL220CT
SOL220PT
SOL220S
SOL220CB
SOL220TI
SOL220SI
SOL220TF
SOL220SF
SOL220F
or
SOLC 201
Flat Plate
collectors
or
SOLCDF 22/32
Evacuated
tube collectors
3
4
Select a hydraulic pack
Select accessories
Hydraulic
packs
1 x 2.0m2 collector
and roof mounting kit
Corrugated tile
Plain tile
Slate
Coach bolts
Freestanding
SOL201CT
SOL201PT
SOL201S
SOL201RST
SOL201F
1 x 20 tube direct flow evacuated tube collector
and roof mounting kit
Universal roof hook
Coach bolts
SOLHYPK1 solar hydraulic pack including
Premium pump station SOLPU1
Controller SOLCU1
Heat transfer fluid
18 ltr expansion vessel and fixing kit
Accessories
For Initial guidance only. Dimplex recommends completing a site questionnaire and consulting our design team in order to properly size the solar hot water system.
*
20
o
155
or
170
185
200
215
230
245
260
275
290
305
320
335
350
365
ECSd250ST-580
ECSd300ST-580
ECSi250ST-580
ECSi300ST-580
ECS300HPST-580
2 x 2.2m2 collectors
and roof mounting kits
3 x 2.2m2 collectors
and roof mounting kits
Corrugated tile
Plain tile
Slate
Coach bolts
Integrated for tiles
Integrated for slate
Integrated with flashing, tile
Integrated with flashing, slate
Free standing
SOL440CT
SOL440PT
SOL440S
SOL440CB
SOL440TI
SOL440SI
SOL440TF
SOL440SF
SOL440F
2 x 2.0m2 collectors
and roof mounting kits
Corrugated tile
Plain tile
Slate
Coach bolts
Integrated for tiles
Integrated for slate
Integrated with flashing, tile
Integrated with flashing, slate
Free standing
SOL660CT
SOL660PT
SOL660S
SOL660CB
SOL660TI
SOL660SI
SOL660TF
SOL660SF
SOL660F
3 x 2.0m2 collectors
and roof mounting kits
Corrugated tile
Plain tile
Slate
Coach bolts
Freestanding
SOL402CT
SOL402PT
SOL402S
SOL402RST
SOL402F
Corrugated tile
Plain tile
Slate
Coach bolts
Freestanding
SOL603CT
SOL603PT
SOL603S
SOL603RST
SOL603F
1 x 30 tube direct flow evacuated tube collector
and roof mounting kit
SOLDF22RT
SOLDF22RST
Universal roof hook
Coach bolts
SOLHYPK0 solar hydraulic pack including
Single stream pump station SOLPU0
Controller SOLCU1
Heat transfer fluid
18 ltr expansion vessel and fixing kit
Air separator and non return valve
SOLDF32RT
SOLDF32RST
SOLHYPKETC-18 solar hydraulic pack including
Premium pump station SOLPU1
Controller SOLCU2
Heat transfer fluid
18 ltr expansion vessel and fixing kit
10m Flexible Hoses SOLFH10
15m Flexible Hoses SOLFH15
21
FAQ’s
How effective is solar water
heating in the UK?
If correctly specified and installed,
solar water heating can be very efficient.
About 4m² of good quality panels on a
roof should provide the average family
with around 50-60% of their hot water
needs spread throughout the year
(100% on sunny summer days and even
around 10% on a cloudy, winter’s day).
Is there a difference in the
energy gains of solar panels
for different parts of the UK?
The solar radiation received on a
collector facing due south at an incline of
30° varies from approximately 900 kWh/
m2 per year in Scotland and the North of
England, to approximately 1,200 kWh/
m2 per year in the South West. This is
illustrated on page 5 of this brochure.
Do solar heating systems
continue to provide heat even
when the sun is not shining?
On a cloudy day when there is little or no
direct sunlight, there may still be 200W/
m² of solar radiation falling on the solar
collector. This is sufficiently intense to be
usefully collected by solar collectors.
While the highest amounts of
monthly solar radiation are obviously
experienced in the summer months,
there is enough radiation coming from
the sun in spring, autumn and winter
to make a very useful contribution to a
household’s energy needs. A properly
sized system can be expected to provide
the following:
•80 – 90% of all summer hot
water needs.
•40 – 50% of spring and autumn hot
water needs.
•10 – 15% of winter hot water needs.
Can I increase the number
of collectors on the roof for
better performance?
The greater the surface area of collector
on the roof, the greater the heating
capacity of the solar system. However,
during the summer months the solar
radiation levels can be much higher and
the sun shines for longer, compared
22
with the winter months and during these
periods of hot weather a solar system
can heat the stored water very quickly,
spending the rest of the day trying
to dissipate heat from the system to
prevent overheating.
Oversizing the solar collectors will improve
the spring/autumn/winter performance
when expected output is quite low, but the
system can quickly stagnate in summer
conditions. To improve spring / autumn /
winter performance the inclination angle
can be increased. The Dimplex packages
are selected to provide the correct balance
of performance versus cost and reduce
periods of overheating.
How much would a typical
system cost?
Cost depends on the number of panels
required, the size of the cylinder and on
installation details such as accessibility
for the scaffold and the complexity of the
wiring. A typical system will cost around
£2,000 – £3,000 and a government grant
of £400 is available to assist you.
What direction does my roof
need to face in order for solar
panels to provide maximum
efficiency?
For maximum efficiency, solar panels
should be mounted on a south facing
roof at an angle of 30° – 50° to the
horizontal and away from trees,
surrounding buildings and chimneys.
Fortunately, the average tilt of a UK
house roof is about the optimum for
receiving solar energy in the UK.
If your roof faces east or west solar
panels can still be installed, although
this will have some effect on the
energy gain. The same applies to the
angle of the roof which, provided it is
pitched between 30º and 50ºC, should
still be suitable.
How long do solar water
heating systems take to install?
Time needed for installation will depend
on the size and complexity of the job.
However, most systems usually take
1-2 days to install. In Scotland and
Northern Ireland planning permission is
required for installations that protrude
more than 150mm.
Is planning permission
required?
From April 2008 new Government
rules state that providing the solar
installation does not protrude more than
200mm from the roof slope and is not
in a conservation area or on a listed
building, installation of solar panels are
considered a permitted development,
meaning that no planning permission
is required.
Do I have adequate roof space?
You will need roughly one square meter
of collector per person in the household
installed on a roof that faces east to
west through south and receives direct
sunlight for the majority of the day. For
a 2 bedroom house you would typically
need 1 solar collector (2m2), increasing
to 2 panels for a 3 bedroom house
(4m2) and up to 3 panels (6m2) for larger
properties. This will vary depending on
how much hot water you use and which
way your roof faces.
Do I have space inside the
house?
You will need to fit an additional hot water
cylinder or replace your existing one if
you want to use a solar system to provide
domestic hot water. Solar systems require
cylinders containing a dedicated solar
coil, such as a Dimplex EC-Eau solar
cylinder, to store the hot water generated
by the roof mounted panels.
Is my current heating system
compatible with solar water
heating?
Most conventional boiler and hot water
cylinder systems are compatible with
solar water heating. However, if you
have a combination boiler and no hot
water cylinder, a solar hot water system
may not be compatible. Your Dimplex
Renewables installer will be able to
assess your system and help you
to select the best setup to meet
your needs.
Support
Installer training
Newsletters
Whether you are an installer looking for
new business opportunities or a specifier
wishing to understand more about solar
thermal hot water systems, Dimplex
can help you with a variety of training
courses available. If you are an installer
with demonstrable competency and
experience in plumbing and heating,
you could become an Accredited
Dimplex Renewables installer. Our training
courses are available throughout the UK
and once you have passed the course
and been invited to join the scheme,
you can start to reap the many benefits
associated with this programme.
Full details of all of our training courses
can be found on our website, or by
emailing [email protected]
In addition to product based literature,
we also produce a regular newsletter –
Ecotalk which covers all the latest news
and views of the industry.
Read an interactive copy at
www.dimplexrenewables.co.uk
ec talk
A world of expertise
INSTALLER SPECIAL
Autumn 2011
New Air-Eau
A hit for heating with RHPP
D
DITER
E
R
ACC TALLE
INS
Renewable heating is bigger efficiency and performance, low noise
levels and easy installation. With outputs
news than ever, with the from
6-16kW, the range covers applications
government’s Renewable Heat from small, well-insulated new build homes,
Incentive (RHI) scheme set to to retrofits in existing homes which will have
support the generation of heat higher heat requirements.
from renewable sources and High CoPs
the launch of the new Air-Eau Very high CoPs are achieved at a range of
range of Dimplex air source operating temperatures, and importantly, the
Air-Eau range features an inverter driven
heat pumps.
for variable output. This means
The non-domestic phase compressor
that in cold weather heat pump capacity
of the RHI is scheduled for is maintained, eliminating any need for
this autumn, followed by the supplementary back up heating, while at
domestic phase next October. warmer air temperatures, heat pump output
In the interim, a Renewable can be reduced, helping to improve efficiency.
Heat
Premium
Payment Air-Eau heat pumps have been designed
for very low noise emissions, plus the new
(RHPP) has been announced range
also features a ‘quiet’ mode, so noise
to bridge the funding gap is kept to an absolute minimum – ideal for
for domestic installations overnight use.
until the full tariff-based RHI “Monobloc” configuration means that the
heat pumps are very straightforward to
comes into effect.
The RHPP is a one-off payment –
effectively a grant – to help to cover the
upfront costs of retrofitting solar thermal
water heating, ground or air source heat
pumps, or biomass boilers. Payments for
heat pumps are targeted at homes off the
gas grid and air source heat pumps are set
to be a popular choice under the scheme.
New inverter driven air source range
The latest Dimplex air source innovation is
the Air-Eau range of inverter-driven heat
pumps, offering market-leading energy
install. With all the system components
contained in the heat pump itself, including
heating system circulating pump, expansion
vessel and back up flow boiler, specification
and installation is easy. Air-Eau is also
available in pack format supplied together
with a matched EC-Eau™ cylinder. It couldn’t
be simpler!
With the financial support, the products and
the expertise all falling into place, demand for
renewable heating is set to soar in the next
few years, so make sure you’re up to speed
with the latest innovations – like Air-Eau.
AIR-EAU AT A GLANCE
• Available in 4 model options: 6, 9, 12 and 16kW outputs to suit your individual requirements
• Superior efficiency performance, with CoPs of up to 4.7
• Inverter driven compressor able to maintain heating output levels even at low air
temperatures and modulate output to maximise efficiency
• “Monobloc” heat pump unit, with integrated heating system components
built in for ease of installation:
• Circulation pump
• Expansion vessel
• Safety group
• Back up immersion
• Supplied complete with heat
pump programmer
•Variable water flow temperatures between
35 and 55°C to optimise space heating
comfort, with weather compensated flow
temperature control to improve efficiency
•Designed to work efficiently with underfloor
heating, Dimplex SmartRad radiators or
conventional radiators
•Ideal for use in conjunction with a Dimplex
EC-Eau heat pump-ready cylinder to
produce domestic hot water
•Low noise levels and ‘Quiet Mode’ for night
time operation
•Easy access to electrical and plumbing
connections for ease of installation
®
MORE INSIDE! | Dimplex EC-Eau™ | Solar Thermal | Heat Pump Packages | Training | Case Studies
Maintenance
Warranty
Approvals
Dimplex solar systems are designed for
long life and when serviced regularly will
provide many years of high performance
hot water heating.
The Dimplex guarantee gives you
protection against manufacturing
defects. Full terms and conditions are
available in the product instructions on
the Dimplex website.
Dimplex products are approved by the
following standards and bodies:
Collector – 10 years
Cylinder KIWA approved to building
regulations G3 and water regulations
UK, N. Ireland and Scotland
The maintenance effort for the Dimplex
solar system is minimal and can ideally
be executed when carrying out the
mandatory checks on the unvented hot
water installation. It is recommended to
check the function of the system after
the first year of operation and then carry
out a bi-annual maintenance check. For
more information please see the ‘On site
guide’ on our website.
Cylinder – 25 years for the inner cylinder
2 years on immersion (excluding the
effects of limescale) – 5 years on
other components
Collector EN 12975 and Solar Keymark
Roof mounting Assessed to DIN 1055
Expansion Vessel PED 97/23/CE
All other components – 2 years
The Dimplex Solar Package is supported
by a national network of service
engineers and a team of customer
service personnel.
23
Specifications
Installation Guidance
The Dimplex Range
Dimplex policy is one of continuous
improvement; the Company therefore
reserves the right to alter specifications
without notice. The information contained
in this brochure is correct at the time of
printing. You are advised to consult your
Dealer before purchasing.
This brochure is designed to assist you
with your choice of Dimplex products and
it is not intended as an installation guide.
For safety, products should only be
installed by a competent person,
in accordance with current regulations
and the manufacturer’s instructions.
Dimplex offers the widest range of electric
space and water heating products in the
world – over 400 – to meet almost any
heating need. In addition to this publication,
we have a wide range of brochures for both
domestic and commercial applications.
Please visit our website
www.dimplex.co.uk for more information.
intelligent
heating for a
low energy w rld
Renewables capabilities
brochure
Solar PV brochure
Heat pump brochure
EC-Eau Cylinder brochure
SmartRad brochure
solid fuel fire collection
Cl/SFB (56)
Domestic Heating
October 2011
a range of solid fuel stoves from Dimplex
Commercial Heating
Water Heating
Solar PV
Solar Thermal
Heat Pumps
fire collection
Flame Effect Fires
The
the widest range of electric fires imaginable
January 2012
version 2
Portable Heating
w w w. d i m p l e x . c o . u k / f i re s
Electric fires brochure
w w w. d i m p l e x . c o . u k / s t o v e s
Solid fuel brochure
heatbook
November 2011
Space and water heating solutions for today – and tomorrow
www.dimplex.co.uk
Domestic heating brochure
Commercial brochure
For more information on our wide range of renewable technologies,
dimplexrenewables.co.uk email: [email protected]
or call: Trade – 0844 879 3587 Consumer – 0844 879 3588
please visit:
A division of the GDC Group, Millbrook House, Grange Drive, Hedge End, Southampton SO30 2DF
For Northern Ireland, contact Glen Dimplex N.I. Limited, Unit No 24, Seagoe Industrial Estate, Portadown, Craigavon, Co. Armagh BT63 5TH
Project part financed by the
European Regional Development Fund
under the European Sustainable
Competitiveness Programme for
Northern Ireland.
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by the printer
© Dimplex. All rights reserved. Material contained in this publication may not be produced in whole or part, without prior permission in writing from Dimplex.
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