Innovation + Quality Thermal solar energyStations, controllers, collectors, accessories,

service, software

Product range

Valves, controls + systems

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NOMINATED

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Stations for solar plants and solid fuel boilerconnection are becoming more and moreimportant.The reasons are not at last the rising energyprices and the changing environmental con-sciousness of consumers.These stations are not only installed in newbuildings, but also existing systems areincreasingly converted.

The use of solar energy for heat generationis a good opportunity to reduce energycosts in combination with gas/heating oilgross calorific boilers.

Example: Construction of a solar plant in a single family detached house

Thermal solar energyContent

ContentPage2 Content

3 General information4 Tube collector “OKP-10/20”5 Flat-plate collector “OKF-CK22”6 Stations “Regusol-130” 7 Stations “Regusol-180” 8 Station “Regusol X-Uno” with heat exchanger9 Station “Regusol X-Duo” with heat exchanger

10 Heating of potable water and support of heating system – Buffer storage cylinder and station for heating of potable water “Regumaq X” – System illustration

11 Heating of potable water and support of heating system – Buffer storage cylinder and station for heating of potable water “Regumaq X” – Loading section by section with station “Regusol X-Duo” – System illustration

12 “Regumaq X-30/XZ-30” Stations for heating of potable water13 “Regumaq XK” Cascade control set for heating of potable water – Control concepts

14 “Regtronic” Controllers for solar techniques

15 “Regtronic” Electronic controllers – Pipework configurations, examples

16 Diaphragm expansion tank for thermal solar energy – Pipes and fittings

17 Further products for thermal solar energy

18 Service, software

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Advantages:– High functional efficiency due to high

quality materials– All components from one supplier– Complete product groups (systems)

available– Time- and cost-saving installation– Product assemblies with insulation

Amongst other items, the Oventrop productrange includes:– Stations for the connection of collector

and storage cylinder with and without heat exchanger

– Collectors and accessories:- Tube collectors (“OKP-10/20”)- Flat-plate collectors (“OKF-CK 22”)

– Storage cylinders:- Buffer storage cylinders- Solar butter storage cylinders- Bivalent solar storage cylinders

– Solar packages “Solcos”:- For heating of potable water- For heating of potable water and

support of the heating system– Pipes, connection fittings and other

accessories(further components see catalogue “Prod-ucts”)

Nowadays, modern solar plants and solidfuel boilers can be perfectly coordinatedwith other components of the heating sys-tem.If nearly all parts of the installation systemare supplied by the same manufacturer,everything adds up and functions perfectly.Oventrop offers high-quality componentsand complete systems for solar circuits,heating of potable water and support of theheating system (including underfloor andwall heating).

General information

Example: Solar plant for heating of potable water

Single family detached house in Olsberg

Radiator circuit

Underfloorheatingcircuit

Boiler

MIX

Hotwater

Coldwater

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The tube collector “OKP-10/20” is a heatpipe tube collector which distinguishes itselfby a permanent heat transport. Due to itshydronic features, the collector can be fixedto the building (pitched or flat roof, facade or detached) with an inclination of the axisbetween 15° and 75°. The tube collector can be used for heatingof potable or swimming pool water, solarsupport of the heating system and the pro-duction of process heat.Due to the high-selective absorber surface,a high solar share is achieved.The vacuum inside the tube guaranteesmaximum insulation. The high quality corro-sion resistant materials ensure a long servi-ce life of the tube collector “OKP-10/20”.1 Tube collector “OKP-10/20”tested to DIN EN 12975 and certified ac-cording to “SolarKeymark”.(Small illustr.: Foot rail with stainless steelangular plate for additional protection of thevacuum tubes on the roof)2 Illustrated section tube collector “OKP-

10/20”Function:

- Sunlight is absorbed and converted intoheat

- Heat is transmitted to the heat pipe via the heat conducting steel sheet inside the glass tube

- Liquid inside the heat pipe evaporates; steam rises into the condenser

- Heat is transmitted to the passing heat transfer medium via the double tube heat exchanger (collector) in which the con-denser is located

- Liquid inside the condenser condenses due to the heat output, flows back inside the heat pipe and the procedure is re-peated

3 Simple installation of the roof hooks to the“OKP” frame profiles (lateral fitting)4 System illustration solar circuit with “collector”

Tube collector “OKP-10/20”

4

Return

Supply

Permanentheat transport

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1

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The laser welded aluminium absorber andantireflective glass of the flat-plate collector“OKF-CK22” guarantee a high efficiency.Dimensions:Gross surfacearea: 2.24 m2

(W = 1.16 m; L = 1.93 m)Aperture surfacearea: 2.02 m2

Weight: 42 kgFlat-plate collectors “OKF-CK22” can beused for heating of potable and swimmingpool water and for solar support of the hea-ting system. The flat-plate collector can bemounted horizontally and vertically and issuitable for rooftop installation, roof inte-gration and freestanding installation (flat roofinstallation).Depending on the type of installation, basicsets for two collectors, extension sets foreach additional collector and an individualcollector set are available. The preassem-bled rail systems for rooftop and flat roofinstallation allow a quick and rational instal-lation on site.All fixing elements are easily accessible andallow a time-saving installation. The absorber made of aluminium heat con-ducting steel sheet and copper pipe isconnected to the solar circuit via two collec-tor connections with G 1/2 male thread. The flat-plate collectors are connected withone another by using flexible stainless steelcorrugated pipes. Thermal conditionalexpansions are compensated at the sametime. 1 Flat-plate collector “OKF-CK22” tested toDIN EN 12975 and certified according to“SolarKeymark”.2 ComparisonAntireflective glass/standard glassThe antireflective glass of the flat-platecollector “OKF-CK22” increases transmis-sion by 5%. Especially during winter, with aninclined incidence of light, the transmissionis improved considerably compared withstandard glass. The water does not form drops on the nano-structure of the antireflective glass butdrains away like a thin film (“no drop effect”). 3 Construction of the flat-plate collector

Flat-plate collector “OKF-CK22”

Antireflective glass Standard glass/structural glass

Glass Glass

Nano-structure

Antireflective solar glass

Laser weldedfull surface absorberwith panelselective coating

No thermal bridgesowing to uninterruptedperipheral insulation

Thermal insulation with athickness of 60 mmminimises heat losses

Absorber pipes forbest possible heat conduction

Aluminium frame

Sunlight100%

Sunlight100%

Transmission 96% Transmission 91%

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1 Station “Regusol EL-130” with safetygroup (pump length 130 mm) with electroniccontroller “Regtronic PE” and deaerator foran effective deaeration of the heat transfermedium in the supply.Connection to the solar circuit DN 25 usingcompression fittings “Regusol”.Completely pre-assembled and leak testedstation with safety group and facility toconnect an expansion tank.2 Station “Regusol S-130” with safetygroup (pump length 130 mm). Same con-struction as station “Regusol EL-130” butwithout electronic controller and withoutdeaerator.Connections:DN 20: G 3/4 male thread (compression

(fittings according to DIN V 3838)DN 25: G 1 male thread ( for “Regusol”

compression fittings)3 Station “Regusol L-130”, same construc-tion as station “Regusol EL-130” but withoutelectronic controller.Connections as station “Regusol S-130”.4 Pump circuit “Regusol P-130” with safetygroup, same construction as the return ofthe station “Regusol S-130”. Check valveintegrated in the ball valve.Connections as station “Regusol S-130”.5 Station “Regusol E-130”, same construc-tion as station “Regusol S-130” with addi-tional electronic digital controller.6 Station “Regusol E-130” with electronicflow sensor and electronic controller “Regtronic PC”.

Stations “Regusol-130”

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Stations “Regusol-180”

4 5 6

T

230 V ~/50 Hz

HC

W

1 Station “Regusol L-180” DN 25 withsafety group (pump length 180 mm) anddeaerator for an effective deaeration of theheat transfer medium in the supply.Connection to the solar circuit DN 25 usingcompression fittings “Regusol”.Completely pre-assembled and leak testedstation with safety group and facility toconnect an expansion tank.2 Pump circuit “Regusol P-180” DN 25 withsafety group.3 Station “Regusol S-180” DN 25, sameconstruction as station “Regusol L-180” butwithout deaerator.4 Station “Regusol S-180” DN 32 withsafety group. Connection to the solar circuitG 2 flat sealing.5 Station “Regusol EL H” DN 25 with high-efficiency pump (energy label A) and elec-tronic controller “Regtronic PEH”.Award for the best

From now on, high-efficiency pumps canbe identified easily.Europe’s leadingmanufacturersof heating pumpshave agreed on auniform rating ofenergy consumption.The energy efficiencyclasses are from A(highest efficiency,low energy consumption) to G(high energyconsumption).

6 System illustration

Thermostatic mixingvalve “Brawa-Mix”

Collectors“OKF/OKP”

Buffer storage cylinder

„Regusol EL”

SupplyReturn

Control linefor boilercontrol

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Station “Regusol X-Uno” with heat exchanger

Product assembly with electronic controllerand heat exchanger for a controlled trans-mission of the heat of the solar circuit (pri-mary circuit) to a monovalent storage cylin-der (secondary circuit), for instance for existing storage cylinders without directsolar connection.Primary circuit up to PN 10 and 120°C,starting temperature 160°C.Secondary circuit up to PN 6 and 120°C,constant operation.The soldered plate heat exchanger com-plies with the specifications of the Europe-an Pressure Equipment Directive (PED).Due to turbulent flow conditions, an excel-lent self-cleaning effect is produced and acontamination is avoided.The solar circuit is protected againstexcess pressure by a safety group integra-ted in the heat exchanger system. The leaktested components of the plate heatexchanger system are mounted on aboard. The controller is cabled with theinternal electric components and has thefollowing connections:- Output for solar circuit pump- Output for loading pumpTemperature entries for:Collector, heat exchanger entry point – primary side, heat exchanger exit point-secondary side, 2 temperature entries forbuffer storage cylinder, interface for elec-tronic flow sensor.Plain text display of the controller. The heat exchanger system is completelyinsulated and can quickly be connected tothe primary side using compression fittingsand to the secondary circuit using flat sealsand be put into operation.The actual heat transmission depends on:- the achieved flow temperature and the

flow rate of the primary circuit- the flow temperature difference between

the primary and the secondary circuit- the required flow temperature and the

flow rate of the secondary circuitModels:- “Regusol X-Uno 15”

Station with heat exchanger1 solar circuit connection/1 loading circuit connectionwith electronic controller “Regtronic PX”number of heat exchanger plates 20

- “Regusol X-Uno 25”Station with heat exchanger

1 solar circuit connection/1 loading circuit connectionwith electronic controller “Regtronic PX”number of heat exchanger plates 30

1 “Regusol X-Uno 15”2 System illustration

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1 Solar circuit – Supply

2 Solar circuit – Return

3 Buffer storage cylinder – Return

4 Buffer storage cylinder – Supply I

5 Insulation

Primarycircuitconnection

Secondarycircuit connection

Hot water

Coldwater

Station “Regusol X-Duo” with heat exchanger

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Product assembly with electronic controller,heat exchanger, three-way conversion valvefor second loading circuit for the controlledtransmission of the heat of the solar circuit(primary circuit) to a monovalent storagecylinder (secondary circuit), for instance forexisting storage cylinders without directsolar connection.The three-way valve integrated in the sup-ply pipe of the secondary circuit allows theconversion to an additional loading circuitrunning in parallel, for instance for the loa-ding section by section of the storage cylin-der or the thermal loading of another stora-ge cylinder. Primary circuit up to PN 10 and 120°C,starting temperature 160°C.Secondary circuit up to PN 6 and 120°C,constant operation.The soldered plate heat exchanger com-plies with the specifications of the EuropeanPressure Equipment Directive (PED). Due toturbulent flow conditions, an excellent self-cleaning effect is produced and a contami-nation is avoided.The solar circuit is protected against excesspressure by a safety group integrated in theheat exchanger system. The leak testedcomponents of the plate heat exchangersystem are mounted on a board. The con-troller is cabled with the internal electriccomponents and has the following connec-tions:- Output for solar circuit pump- Output for loading pump- Output for conversion valveTemperature entries for:Collector, heat exchanger entry point – primary side, heat exchanger exit point-secondary side, 3 temperature entries forstorage cylinder with loading operation sec-tion by section, interface for electronic flowsensor.Plain text display of the controller. The heat exchanger system is completelyinsulated and can quickly be connected tothe primary side using compression fittingsand to the secondary circuit using flat sealsand be put into operation.The actual heat transmission depends on:- the achieved flow temperature and the

flow rate of the primary circuit- the flow temperature difference between

the primary and the secondary circuit- the required flow temperature and the

flow rate of the secondary circuitModels:- “Regusol X-Duo 15”

Station with heat exchanger1 solar circuit/2 loading circuit connec-tionswith electronic controller “Regtronic PX”number of heat exchanger plates 20

- “Regusol X-Duo 25”Station with heat exchanger1 solar circuit /2 loading circuit connec-tionswith electronic controller “Regtronic PX”number of heat exchanger plates 30

1 “Regusol X-Duo 15”2 System illustration

1 Solar circuit – Supply

2 Solar circuit – Return

3 Buffer storage cylinder – Return

4 Buffer storage cylinder – Supply I

5 Buffer storage cylinder – Supply II

Primarycircuitconnection

Secondarycircuitconnection

Hot water

Coldwater

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Heating of potable water and support of heating system-Buffer storage cylinder and station for heating of potable water

“Regumaq X”

T4

T5

T

Steuerleitung für Kesselregelung

T

TT

RücklaufleitungVorlauf

„Regumat M3”„Regusol X Uno”

Kollektoren „OKF/OKP”

Pufferspeicher

„Regumaq X”

Dreiwege-Verteilventil „Tri-D”

Ι

ΙΙΙΙΙ

System illustration

Solar circuitThe solar plant is connected and controlledvia the station “Regusol X-Uno” with inte-grated heat exchanger and the integratedcontroller “Regtronic PX”.

Re-loading of the buffer storage cylinderThe buffer storage cylinder is re-loaded bythe boiler depending on the storage cylindersensor (T).

Hot potable waterHot potable water is supplied by the stationfor heating of potable water “Regumaq X”when needed.No hot potable water is stored; therefore theinstallation is hygienically safe.

Support of the heating system and return temperature increaseThe flow temperature is controlled via theexisting boiler control. The mixing valve ofthe “Regumat M3” station is activated de-pending on the outside temperature. In order to use the solar energy in the stor-age cylinder, a return temperature increaseis realised via the controller “Regtronic PX”.If the return temperature is lower than thestorage cylinder temperature, the three-way diverting valve “Tri-D” is switched toport III.Energy for return temperature increase istaken from the storage cylinder.

“Regumat M3” “Regumaq X” “Regusol X Uno”

Three-way diverting valve “Tri-D”

Buffer storage cylinder

Supply

ReturnControl line forboiler control

Collectors “OKF/OKP”

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Heating of potable water and support of heating system-Buffer storage cylinder and station for heating of potable water

“Regumaq X”Loading section by section with station “Regusol X-Duo”

T

T T

Steuerleitung für Kesselregelung

RücklaufleitungVorlauf

„Regumat M3”

„Regusol X Duo”

230 V ~/50 Hz

230 V ~/50 Hz

PufferspeicherDreiwege-Verteilventil „Tri-D”

Rück-schlag-ventil

Rück-schlag-ventil

„Regumaq X”

Ι

ΙΙΙΙΙ

Kollektoren „OKF/OKP”

System illustration

Solar circuitThe solar plant is connected and controlledvia the station “Regusol X-Duo” with inte-grated heat exchanger and the integratedcontroller “Regtronic PX”. Depending on thetemperatures available in the collector cir-cuit, the station “Regusol X-Duo” allows aloading of the storage cylinder section bysection. High temperatures are stored in theupper and low temperature in the middlesection of the storage cylinder. This way, effi-ciency of the solar plant is increased.Re-loading of the buffer storage cylinderThe buffer storage cylinder is re-loaded bythe boiler depending on the storage cylindersensor (T).

Hot potable waterHot potable water is supplied by the stationfor heating of potable water “Regumaq X”when needed.No hot potable water is stored; therefore theinstallation is hygienically safe.

Support of the heating system and return temperature increaseThe flow temperature is controlled via theexisting boiler control. The mixing valve ofthe “Regumat M3” station is activated de-pending on the outside temperature. In order to use the solar energy in the stor-age cylinder, a return temperature increaseis realised via the controller “Regtronic PX”.If the return temperature is lower than thestorage cylinder temperature, the three-way diverting valve “Tri-D” is switched toport III.Energy for return temperature increase istaken from the storage cylinder.

Collectors “OKF/OKP”

“Regumat M3” “Regumaq X” “Regusol X Duo”

Three-way diverting valve “Tri-D”Buffer storage cylinder

SupplyReturnControl line forboiler control

Non-returncheckvalve

Non-returncheckvalve

“Regumaq X-30/XZ-30”Stations for heating of potable water

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“Regumaq X-30”The Oventrop station “Regumaq X-30” is anelectronically controlled product assemblywith heat exchanger for the hygienic heatingof potable water on the flow principle. Thepotable water is only heated at the time whenit is needed, i.e. “just in time”. A hot potablewater reserve is thus not necessary.The product assembly allows an optimumrealisation of regenerative pipework configu-rations. The stations are especially suitablefor family homes and multiple dwelling units.They are connected to buffer storage cylin-ders which are heated up by solar energy,solid fuels, gas or oil. Depending on the temperature and the flowvolume on the potable water side (secondarycircuit), the circulation pump on the bufferside (primary circuit) is speed regulated.The plate heat exchanger can be flushedusing the fill and drain cocks integrated in theprimary and secondary circuit. Due to the tur-bulent flow, a good selfcleaning effect avoi-ding a contamination is achieved. The potable water circuit is protected by a 10 bar safety valve.The leak tested components of the heatexchanger system have flat sealing connec-tions and are mounted on a board.“Regumaq XZ-30”The Oventrop station “Regumaq XZ-30” forheating of potable water is identical to thestation “Regumaq X-30”, but the productassembly for the operation of circulationsystems is additionally equipped with a circu-lation pump in the potable water circuit.The controller is fully cabled with the internalelectric components and serves to control thefollowing additional functions:- Demand: The circulation function is acti-

vated if water is drawn off for a short pe-riod

- Cycle: The circulation pump runs accord-ing to the set time switching

- Temperature control: the circulation pump runs dependant on the return temperature

- Three switching points within the corre-sponding operating mode can be pro-grammed each day

1 “Regumaq X-30” station for heating ofpotable water with electronic controller2 “Regumaq XZ-30” station for heating ofpotable water with electronic controller andadditional potable water circulation3 System illustration “Regumaq X-30”4 Draw off capacities (Q secondary) of the“Regumaq” station depending on the tem-perature in the buffer storage cylinderExample (see illustr. 4):If a temperature of 45°C is set at the control-ler, a draw off volume flow of 30 l/min. (Q secondary) can be achieved with a watertemperature of 60°C inside the buffer storagecylinder and a required volume flow of 25 l/min. in the buffer circuit.The primary volume flow is modified by thepump in the storage cylinder circuit which isactivated by the controller.

1 Supply from the storage cylinder2 Return to the storage cylinder3 Hot water4 Cold water supply

Hot water

Cold water

Storagecylinder

2 1

3 4

Flow volume, heating of potable water from 10°C to 45°C

Q p

rim

ary

(l/m

in)

Q secondary (l/min)

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“Regumaq XK”Cascade control set for heating of potable water

Control concepts

1

Cascade control set “Regumaq XK” consisting of:Cascade control and actuators with ball val-ves for potable water supply.The cascade control set allows to increasethe discharge capacity of the stations“Regumaq X-30” and “Regumaq XZ-30” upto 120 l/min.

Models:

- Set for the control of 2 “Regumaq XZ-30”stationsDischarge capacity: 60 l/min. with a hot water temperature of 50°C and a cold water temperature of 10°C2 actuators with ball valve

- Set for the control of 3 “Regumaq XZ-30” stationsDischarge capacity: 90 l/min. with a hot water temperature of 50°C and a cold water temperature of 10°C3 actuators with ball valve

- Set for the control of 4 “Regumaq XZ-30” stationsDischarge capacity: 120 l/min. with a hot water temperature of 50°C and a cold water temperature of 10°C4 actuators with ball valve

1 “Regumaq XZ-30” with “Regumaq XK”2 System illustration

13

TWK TWW

TWZ

2

Bufferstoragecylinder

Potable water coldPotable water cold

Flow sensor

Potable water circulation pipe

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Electronic controller for wall attachment withpreinstalled switching schemes for the controlof a solar thermal plant and for heating circuitregulation.The combination of preinstalled switchingschemes and freely adjustable additional func-tions allows the controller to perform complexcontrols.1 Controller “Regtronic PEH”Differential controller for heating of potablewater for activation of high-efficiency pumpsPulse-width modulation and output signal 0-10 Vconvertible2 inputs/1 outputFurther accessories:1 collector sensor and 1 storage cylinder sensor2 Controller “Regtronic PC”Differential controller for heating of potablewater with support of the heating systemFreely programmable outputsOperating current 230 V8 inputs/4 outputsFurther accessories:1 collector sensor and 3 storage cylinder sensors3 Controller “Regtronic PM”Control of complex installationsFreely programmable outputsOperating current 230 V10 inputs/12 outputsFurther accessories:2 collector sensors and 4 storage cylinder sensors4 Controller “DeltaSol BS/2”Differential controller for heating of potablewaterOperating current 230 V2 inputs/1 outputFurther accessories:1 collector sensor and 2 storage cylinder sensor5 System illustration (example)

“Regtronic”Controllers for solar techniques

4

l

-

“

Radiator circuit Existingheating system

Controller“Regtronic PM”

Switching signalfor heating circuit control

Switching signal to the boiler

Hotwater

Coldwater

Boilercontrol

Boiler

Relay

Extension for solarheating of potablewater and supportof the heating system

“Regtronic”Electronic controllers

Pipework configurations, examples

15

The below mentioned pipework configurations can be realised with the Oventrop controllers.

The Oventrop controllers allow for a number of possible pipework configurations. Amongst others, functions like return temperature increase, boiler activation, wood burning boiler activation, circulation function, threshold function as well as heating and cooling function can easily be realised.

Pipework configuration ”BS/2“ ”PC“ ”PM“

X X X

X X

X X

X X

Further pipework configurations can be found in the catalogue “Products”, product range 7.

Diaphragm expansion tank for thermal solar energyPipes and fittings

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1

2

1 Special expansion tank for solar plantswith a nominal value of 18, 25, 33, 50 or80 l.Permissible working temperature 70°CMax. working pressure 10 barDiaphragm tested according to DIN 48 03T3; approved according to Pressure Equip-ment Directive (PED) 97/23 EC.2 Oventrop offers an extensive range ofaccessories (e.g. stainless steel corrugatedpipe for roof conduit, connection fittings forseries coupling of several “OKP-10/20”collectors into a large collector field) for theconnection of “OKP-10/20” tube collectors(see also page 4).Without illustr.: Oventrop offers differentconnection fittings, flat sealing or with com-pression connection, for the flexibleconnection of the “OKP-10/20” tube collec-tors to the solar circuit.

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1 2

3 4

7 8

1 Flow measuring and regulating devicewith isolation, for instance for “Regusol-130”,2-15 l/min. 2 Venting circuit for replacement at existingstations “Regusol-130” consisting of:Ball valve with integrated check valve, ther-mometer and deaerator.3 Filling and flushing device “Regusol”Isolating ball valve with lateral connectionfor filling and flushing pipes to be installedat the lowest point of the solar circuit.4 Filling pump “Regusol”Manual filling pump with hose connectionand ball valves on suction and pressureside.5 Three-way mixing valve and temperaturecontroller with immersion sensor, is used forindustrial installations, water heaters, airheaters, dishwashers, surface heatingsystems or similar. The control range can belimited or locked.6 Connection set “Regusol”For the connection of a diaphragm expan-sion tank to the solar station “Regusol”.Consisting of: Steel angled wall bracket,quick coupling for diaphragm expansiontank and a corrugated pipe.7 Thermostatic mixing valve “Brawa-Mix”made of bronze, for domestic water installa-tions PN 10 up to 100°C.Control range: 35-50°C8 Brass ball valve “Optiflex”with male or female thread, self-sealing,with counternut, handle with limit stop, withhose connection (soft seal) and cap.

Further products for thermal solar energy

5 6

Pro

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6, 7

PR

279

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F. W. OVENTROP GmbH & Co. KGPaul-Oventrop-Straße 1D-59939 OlsbergTelephone +49 (0)29 62 82-0Telefax +49 (0)29 62 82-450E-Mail mail@oventrop.deInternet www.oventrop.de

Further information can be found in theOventrop catalogue “Products”, in the tech-nical data sheets as well as on the internet,product range 7.

Subject to technical modifications.

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Service, software

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1 Oventrop supports its partners withtheoretical and practical seminars.Competent instructors report on currentguidelines, standards and possible state-sponsorships.Practical examples do not only demonstra-te the useful integration of Oventrop com-ponents with heating, cooling, potablewater and solar systems, but also a correctdesign.2 Catalogues, technical literature, calcula-tion slides and software are available onrequest.3 Oventrop offers a special service forsolar plant design, heating of potable waterand heating of potable water with additio-nal support of the heating system:At www.oventrop.solar-software.de, athermal solar plant can be calculated onlinewith due consideration of the special parameters of a building (size, number ofpersons, roof pitch and orientation, size ofstorage cylinder, required hot water temperature etc.).Calculation (multilingual) can be carried outfor a large number of big cities all over theworld.The calculation serves an approximateplant projection and is based on theGerman emission values.Having entered the project data, the soft-ware simulates the parameters which haveto be considered.Amongst others, the result supplies infor-mation on the required number and size ofcollectors, the heat return, solar share, CO2savings etc.

For an overview of our global presence visitwww.oventrop.de.