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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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.

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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

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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