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EUROPE’S LEADING CHP SPECIALIST
DACHS CHP RANGE GUIDE 2016
CHP Specialist
Pg. 04 - 05
Craftsmanship
Pg. 10 - 11
Is CHP for me?
Pg. 06 - 07
Compact size
Pg. 12 - 13
CO2 saved
Pg. 08 - 09
Dachs mini-CHP
Pg. 14 - 17
Dachs Pro 20
Pg. 18 - 21
Customer support
Pg. 22 - 27
CONTENTS
As the UK moves towards a low carbon economy, Combined Heat and Power (CHP) is becoming increasingly important. No one knows more about this highly specialised technology than SenerTec. As the makers of Europe’s bestselling mini-CHP solution, we have built and installed more CHP units than any other manufacturer.
SPECIAL1STSenerTec is the name behind Dachs,
the best-selling mini-CHP solution in Europe.
The reason behind our success is simple:
We do one thing and we do it well.
That’s what makes us Europe’s leading
CHP specialist.
33,000 UNITS INSTALLED TO DATE Dachs CHP units have been specified for more applications than any other CHP unit.
ENGINEERED IN GERMANY All Dachs units are designed and built using the highest quality materials to ISO 9001 standards.
PROVEN TECHNOLOGY Our industry-leading engines are specifically designed for CHP, using tried and tested technology.
DEVELOPED IN PARTNERSHIP WITH VOLKSWAGEN The Dachs Pro 20 is powered by an EcoBlue 2.0 engine, built by Volkswagen for SenerTec.
BUILT TO LAST Every Dachs CHP unit is built to run continuously and reliably for many years.
LIFETIME SUPPORT SenerTec offers a full service, from site survey and drawings, to technical support, maintenance and remote monitoring.
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06 07
Generating hot water and electricity
from a single source reduces CO2
emissions and minimises energy costs.
97% EFFICIENT.* 100% DEPENDABLE
Our economy has been built on a constant supply of low cost
electricity. But times are changing. To combat the threat of
climate change, businesses of all sizes are under pressure to
reduce CO2 emissions and energy consumption.
Renewable energy sources like wind and solar have an important role to play in meeting this challenge, but both have limitations. Particularly in the UK where the weather is unpredictable.
Unlike other low carbon technologies CHP provides a constant supply of low carbon electricity and heating, all day - every day.
When energy is generated by large-scale power plants the heat produced in the process is simply released into the air.
With CHP, electricity is generated on site, so none is lost during transportation and the heat is captured, rather than lost. Heat is then used to produce hot water for space heating and general use.
Generating power and heat in this way is far more efficient, because the same energy is used for both processes.
In fact, SenerTec’s Dachs mini-CHP units are so efficient they can convert over 97% of primary energy into electricity and heat.
Heat
Electricity
Fuel
*Gross 97%
A result of over 20 years’ experience, SenerTec’s CHP technology is renowned for its reliability and efficiency.
To date over 33,000 Dachs units have been installed across Europe, generating over 5.1 billion kilowatt hours of clean, low cost electricity. Resulting in a saving of more than 3 million tonnes of CO2.
Each unit comprises two main parts: a high-performance generator and purpose-built Dachs engine. The generator delivers electrical
power, while the engine heats system water, which is then stored in a buffer vessel and piped into the heating and hot water systems as and when required.
Dachs CHP technology isn’t just good for the environment; it’s a sound investment for any business or public sector organisation. With primary energy savings of up to 30%, a Dachs mini-CHP unit could pay for itself in as little as five years.
08 09
A Dachs CHP unit could pay for itself in as little as five years.
All the essential parts of the Dachs CHP unit are precision engineered using the highest grades of brass, copper and steel.
The production of every unit is perfected by hand and individually monitored. Each and every unit is assembled one part at a time, which allows them to be dismantled in the same way.
It could be said that Dachs CHP units are built more solidly than practical requirements demand. But that’s what makes them unique. They’re not only built to perform. They’re built to keep on performing, day in - day out, year in - year out, even in the most demanding environments.
Dachs CHP units are precision
engineered using the highest grades
of brass, copper and steel.
Dachs CHP units are renowned for their durability thanks
to the quality materials used to build them, which is
matched only by the attention to detail that goes into
their assembly.
GERMAN ENGINEERING AT ITS MOST PRECISE
10 11
THE BEST THINGS COME IN SMALL PACKAGES
The Dachs mini-CHP unit isn’t much bigger than a small commercial boiler.
Yet it can meet the baseload heating and electricity requirements of a
typical commercial building.
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A single Dachs mini-CHP unit provides 5.5 kW of power and 14.7 kW of thermal energy, delivering an overall efficiency of up to 99%.
Dachs mini-CHP units can also be used in combination with a SenerTec SE750 buffer vessel (capacity 750 litres).
For larger buildings with higher demands, multiple units can be used together in cascades of up to 10.
The Dachs Pro 20 offers similar levels of efficiency and even greater outputs, with a single unit delivering up to 19.2 kW of electrical power and 42 kW of thermal energy.
With so many permeations available SenerTec is able to offer a fitting solution for virtually any application. From hotels, restaurants, schools and hospitals, to factories, leisure centres, care homes and apartment buildings. Anywhere there’s a need for heat, hot water and power.
Similar in size to a small
commercial boiler, the Dachs
mini-CHP unit delivers enough
electricity to meet the baseload
power requirements of many
commercial buildings.
The SenerTec Dachs mini-CHP system uses an internal combustion engine that can be fuelled by either natural gas or LPG. Designed for use in larger residential buildings or commercial premises, the flexibility of using a multi-module system means that it can be tailored to suit your specific requirements. The Dachs mini-CHP is Europe’s biggest selling mini combined heat and power system.
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FEATURES BENEFITSSingle-cylinder, four-stroke Dachs engine Proven technology, purpose-built for CHP
LPG compatible Suitable for off gas applications
Easily integrates with existing heating systems Suitable for older buildings and new builds
Supplied with controls and thermostats to suit completeCHP buffer installation
Links easily to site controls for ease of installation
Can be installed in multiple modules with additional buffer tank, controls and accessories
Can be customised to suit individual applications, maximising efficiency and CO2 savings
Remote monitoring via DachsPortal Helps plan maintenance and ensures optimum performance
ErP energy label rating A+++ Most efficient product performance under the new ErP Directive
DACHS MINI-CHPOver 33,000 installations to date
GENERALDimensions (L x W (including MSR2 controller) x H) 1070 x 990 x 1000 mm
Service space - sides/front/rear 600/600/350 mm
Vertical service space required 1800 mm
Weight 530 kg
Noise level (at 1 metre from casing) 54 dBA
ErP efficiency rating A+++
Efficiency - gross (nett) 89% (99%)
ENGINEEngine type Single cylinder 4-stroke
Service intervals 3,500 operating hours
Exhaust flue connection DN80
FUELFuel type Natural gas
Natural gas input (22.5 kW) 2.1 m3/h
Gas supply pressure 20 mbar
Gas connection size (flexible hose supplied) ½”
ELECTRICALGenerator type Asynchronous
Generated electricity 3 phase output 5.5 kW
Electrical efficiency - gross (nett) 24% (27%)
Electricity supply 400/3/50
Integrated grid protection G83/2
External type C circuit breakers (by others) 20 A
CONTROL CONNECTIONS- Volt free enable
- 230 volt remote fault indication
- 230 volt remote service due indication
Modem connection - GSM supplied (ethernet option also available)
THERMALHeating output 14.7 kW
Flow and return connections to buffer vessel 1”
Maximum thermal efficiency - gross (nett) 65% (72%)
Flow temperature 80°C
Maximum return temperature 70°C
Minimum return temperature 10°C
Maximum flow rate 0.35 l/s
Standard safety valve 2.5 bar
Maximum working pressure 3 bar
SPACE REQUIREMENTS
SE750 BUFFER VESSELCapacity 750 l
Height x Diameter (with insulation) 1980 x 950 mm
Weight 145 kg
Maximum hydraulic working pressure 3 bar
Flow and return connections to DACHS 1”
Flow and return connections to heating system 1½”
TYPICAL HYDRAULIC ARRANGEMENT
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Multi-module condensing Dachs units (base load)
SE750 buffer vessel
Boilers (peak load)
Heating circuits
<700C
800C
Plan Front elevation
TECHNICAL SPECIFICATIONDACHS MINI-CHP
The Dachs Pro 20 is a combined heat and power solution designed and manufactured in partnership with Volkswagen. Powered by a purpose-built EcoBlue engine, the Dachs Pro 20 can deliver up to 19.2 kW* of electrical power and 42 kW* of thermal energy.*This data is indicative and subject to change.
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Developed in partnership with Volkswagen
FEATURES BENEFITS
Volkswagen 2.0 EcoBlue engineQuiet VW 4-cylinder 2.0 litre engine, optimised by Volkswagen specifically for use in a CHP unit with natural gas
Proven technology Reliable and long-lasting
Easily integrated with existing heating systems Suitable for older buildings as well as new builds
Small footprint Minimal space required for installation and maintenance
Remote monitoring via DachsWeb Helps plan maintenance and ensures optimum performance
Low (15/Nm3) NOx emissions Meets the latest environmental standards
DACHS PRO 20
COMING SOON
GENERALDimensions (L x W x H) 1510 x 730 x 1045 mm
Service space required 600 mm (all sides)
Vertical service space required 2200 mm
Weight 765 kg
Noise level (at 1 metre from casing) Maximum 48 dBA acc. DINEN 60814
Efficiency - gross (nett) 85.3% (94.7%)
Heat: Power ratio 2.2:1
ENGINEEngine type VW 2.0 litre; 4-cylinder modified for nat. gas
CO emissions 38 mg/Nm3 (5% O2)
NOx emissions 15 mg/Nm3 (5% O2)
Exhaust gas mass flow rate 85 kg/hr maximum
Exhaust gas temperature Lower than 90°C
Exhaust gas connection 1 DN80
Service intervals 4500 operating hours
FUELFuel type Natural Gas
Fuel input - gross 64.8 kW
Gas supply pressure 18-25 mbar
Gas connection size ¾”
ELECTRICALGenerator type Asynchronous
Generated electricity 3 phase output 19.2 kW
Electrical efficiency - gross (nett) 29.6% (32.9%)
Electricity supply 400/3/50
Grid protection 2 G59/3
External protection 3 50A circuit breakers
Power factor 0.95 minimum
Generator current 36.7 A
Starting current 50 A
TYPICAL HYDRAULIC ARRANGEMENT
THERMALHeating output 42 kW
Flow and return connections to buffer vessels 1¼”
Maximum thermal efficiency - gross 70%
Flow temperature 80°C
Maximum return temperature 70°C
Minimum return temperature 30°C
Maximum flow rate 0.42 l/s
Maximum working pressure 4 bar
SE940 BUFFER VESSELCapacity 940 litres
Height x Diameter (with insulation) 2130 x 990
Back and side clearance required 130 mm
Buffer discharge pump 4 UPM GEO 24-85 130
Flow and return connections to Pro 20 1¼”
Connections between buffer vessels 1¼”
Flow and return connections to heating system 1¼”
Drain connection ¾”
1) Based on the Dachs Pro 20 ST.
2) A wall-mounted G59/3 grid protection relay panel is included for on-site installation and wiring connection to the CHP by others.
3) Connect CHP to circuit breakers in the G59/3 panel supplied – if using a different G59/3 panel, circuit breakers must be provided by others.
4) The buffer discharge pump must be electrically connected on site (by others) to the Dachs MSR controller.
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SPACE REQUIREMENTSTECHNICAL SPECIFICATION
DACHS PRO 20
Plan Front elevation
Please note: This technical data is indicative and subject to change.
Parts of SenerTec supply (excl. piping, etc) On-site installation
600
6001045600
730
600
1510
2200
Volume of buffer vessel to be defined
600
6001045600
730
600
1510
2200
Volume of buffer vessel to be defined
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HOW WE CAN HELP
If you’re considering CHP you can count on ourfull support every step of the way from survey and design, to maintenance and servicing.
As a member of the Baxi Group we offer a full support service to customers across the UK. These include:
• Online design tools, including BIM files, CAD drawings, technical specification guides and installation instructions
• Site survey, including expert advice of sizing, siting and controls
• Expert technical support, including advice on achieving specific efficiency targets and regulatory compliance
• Service and maintenance contract options available. Please contact SenerTec Service on 0345 070 1075 for details.
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astBuilt to
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Every Dachs mini-CHP unit is built to run
continuously and reliably for 80,000 hours.
REMOTE MONITORINGFor added peace of mind every unit is fitted with a built-in modem, which allows us to monitor performance remotely. This means any potential faults can be identified and dealtwith immediately before they cause a problem, either by a remote reset, or a site visit.
ONLINE REPORTINGThe DachsPortal provides user access to a comprehensive range of reports detailing everything from electrical output and gas consumption, to running hours and carbon savings. Analysing this data on an ongoing basis enables us to ensure optimum performance is maintained at all times.
MAINTENANCE CONTRACTSTo make sure your Dachs CHP unit continues to run smoothly
throughout its working life, SenerTec offers a range of maintenance contracts, which are carried out by highly trained specialist CHP engineers.
BUILT-IN SERVICE REMINDERSRegular servicing by SenerTec trained engineers maximises efficiency and minimises downtime. Every Dachs CHP unit automatically sends us a reminder 300 hours before a service is due and continues to send out reminders until the work has been done.
GENUINE PARTSAll maintenance and servicing is carried out using original SenerTec parts, which are stocked and distributed across the UK by our specialist parts division, Baxi Genuine Parts.
CONTACT US
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Dachs CHP technology has received a warm welcome from customers across Europe. In fact, it has proved so popular it even has its own fan club with over 7000 members. No other CHP unit can
claim this, but then there is no other CHP unit quite like a Dachs. To find out more about Europe’s bestselling CHP solution visit senertec.co.uk or call us on 0345 070 1055 and introduce yourself.
phone 0345 070 1055
email service@senertec.co.uk
web senertec.co.uk
twitter @SenerTecUK
Publication date: January 2016 500403 RS 33961
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