DE2753756A1 - Draining and expansion vessel for open solar heating system - provides security without temperature and pressure safety devices - Google Patents
Draining and expansion vessel for open solar heating system - provides security without temperature and pressure safety devicesInfo
- Publication number
- DE2753756A1 DE2753756A1 DE19772753756 DE2753756A DE2753756A1 DE 2753756 A1 DE2753756 A1 DE 2753756A1 DE 19772753756 DE19772753756 DE 19772753756 DE 2753756 A DE2753756 A DE 2753756A DE 2753756 A1 DE2753756 A1 DE 2753756A1
- Authority
- DE
- Germany
- Prior art keywords
- expansion vessel
- collector
- solar
- emptying
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000013022 venting Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1057—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/003—Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/60—Arrangements for draining the working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/50—Preventing overheating or overpressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/70—Preventing freezing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Description
1. Zweck, Anlagenbeschreibung 1. Purpose, description of the system
1.1 Brauch- oder Heizungswassererwärmung mittels Sonnenkollektoren, Speicher, Wärmetauscher. Eine Umwälzpumpe sorgt für den Wärmetränsport zwischen Kollektoren und Speicher. Die Anlage kann "offen" ausgeführt werden.1.1 Domestic or heating water heating by means of solar collectors, storage tanks, heat exchangers. A circulation pump takes care of the heat transfer between the collectors and the storage tank. the The system can be run "open".
1.2 Das Kernstück der hier beschriebenen offenen Solarheizung ist das Entleer- und Ausdehnungsgefäß. Ansonsten sind für Wasserkreislauf und Steuerung aus der Heizungstechnik bewährte Elemente einzusetzen.1.2 The core of the open solar heating system described here is the emptying and expansion vessel. Otherwise are for Water circuit and controls from heating technology to use proven elements.
2. Stand der Technik 2. State of the art
2.1 Für das Gebiet der Solarheizungen gibt es keine speziellen Vorschriften, Richtlinien, Sicherheitsnormen.2.1 There are no special ones for the field of solar heating Regulations, guidelines, safety standards. Auch die Wahl des geeigneten Werkstoffs bleibt dem Anlagenersteller überlassen.The choice of the suitable material is also left to the system manufacturer.
2.2 Solarheizungen werden üblicherweise als geschlossene Anlagen mit Druckausdehnungsgefäß und Sicherheitsventil ausgeführt.2.2 Solar heating systems are usually designed as closed systems with a pressure expansion vessel and safety valve executed.
2.3 Da Thermoöl wegen Problemen der Brennbarkeit, Abwassergefährdung bei Undichtigkeiten, Werkstoffwahl sowie wegen hoher Kosten als Wärmeträgermedium fragwürdig ist, wird überwiegend Wasser mit Frostschutzmitteln zum Wärmetransport benutzt.2.3 Since thermal oil due to problems of flammability, wastewater hazard in the event of leaks, choice of material and because of High cost is questionable as a heat transfer medium, water with antifreeze is predominantly used for heat transport.
3. Sicherheitstechnische Auflagen der Zukunft 3. Future safety requirements
3.1 Eine Einordnung der üblichen geschlossenen Anlagen unter Druckbehälter mit entsprechenden Anforderungen an alle Anlagenteile (RohrleitungenI) kann erwartet werden.3.1 A classification of the usual closed systems under pressure vessels with corresponding requirements for all system parts (pipelines) can be expected.
3.2 Außerdem muß als wesentliche Anforderung der Betrieb mit überteiperatur bedacht werdenI 3.2 In addition, operation with excessive temperature must be considered as an essential requirement
3.3 Messungen der Hersteller von Sonnenkollektoren belegen Temperaturen von 130 bis 16O° C, besondere Bauformen erreichen sogar bis 200° C. Mit Temperaturen von mehr als 100° C unter· liegen Anlegen der Heizungstechnik umfassenden sicherheitstechnischen Auflagen (Heißwasser-Heizungsanlagen).3.3 Measurements by the manufacturers of solar collectors show temperatures of 130 to 160 ° C, which reach special designs even up to 200 ° C. With temperatures of more than 100 ° C below there are comprehensive safety requirements (hot water heating systems) in place for the heating technology.
90 9JJ U 0 0 2 390 9JJ U 0 0 2 3
Blatt 2 - Ing.-Büro BMS, 7250 LnonbecgSheet 2 - Ing.-Büro BMS, 7250 Lnonbecg
3.4 Anlagen im Druck- und Übertemperaturbereich sind im Heizungsfach anzeige- oder gar abnahmepflichtig. Festgelegte Sicherheitsnormen (auch Werkstoffqualitäten) sind zu erfüllen.3.4 Systems in the pressure and excess temperature range are subject to notification or acceptance in the heating compartment. Established safety standards (also material qualities) are to be fulfilled.
3.5 Auflagen aus diesem Bereich sind nach Behandlung der Solaranlagen in den entsprechenden Fachnormen-Ausschüssen zu erwarten. 3.5 Conditions from this area are after the treatment of the solar systems to be expected in the corresponding technical standards committees.
3.6 In einer kritischen Betrachtung setzt sich TÜV-Mitarbeiter und Mitglied im Fachnormenausschuss Heizung - Lüftung Dipl.-Ing. F. Mayr mit sicherheitstechnischen Maßnahmen in der Solartechnik auseinander und äußert vorgenannte Bedenken (Sanitär- und Heizungs-Technik, Heft 6 / 1977» Seite 501).3.6 The TÜV employee and member of the technical standards committee heating - ventilation takes a critical look Dipl.-Ing. F. Mayr deals with safety measures in solar technology and expresses the aforementioned concerns (Sanitary and heating technology, issue 6/1977 »page 501).
4. Die offene Anlage mit Entleer- und Ausdehnungsgefäß als sichere Lösung 4. The open system with emptying and expansion vessel as a safe solution
4.1 Zwischen Wärmeverbraucher (in Bild 1 z.B. Wärmetauscher im Brauchwasser- Speicher- (6)^ und Solarkreis- Umwälzpumpe (4) befindet sich das Entleer- und Ausdehnungsgefäß (i).4.1 Between the heat consumer (in Figure 1 e.g. heat exchanger in the domestic hot water storage tank (6) ^ and solar circuit circulating pump (4) is the emptying and expansion vessel (i).
4.2 Das Entleer- und Ausdehnungsgefäß (1) dient zur Aufnahme des Ausdehnungswassers sowie des Kollektoreninhalts samt der über dem Gefäß liegenden (und evtl. frostgefährdeten) Leitungen.4.2 The emptying and expansion vessel (1) is used for receiving of the expansion water as well as the collector contents including those lying above the vessel (and possibly frost-prone) Cables.
4.3 Dieser Wasserinhalt bestimmt die Größe des Gefäßes.4.3 This water content determines the size of the vessel.
4.4 Das Gefäß (1) muß unterhalb der Kollektoren (5) und frostgefährdeten Anlagenteile installiert werden. Entweder im beheizten Dachraum oder im Heiz- bzw. Technikraum·4.4 The vessel (1) must be below the collectors (5) and those at risk of frost System parts are installed. Either in the heated roof space or in the boiler room or technical room
4.5 Die Kollektoren werden aus dem Entleer- und Ausdehnungsgefäß gefüllt,von der Kollektorkreispumpe (4) werden die Kollektoren von unten nach oben gefüllt über die Rücklaufleitung. 4.5 The collectors are filled from the emptying and expansion vessel, the collector circuit pump (4) is the Collectors filled from bottom to top via the return line.
4.6 Bei Stillstand der Solarkreispumpe (4) entleert sich der über dem Gefäß (1) liegende Teil der Anlage in das Entleer- und Ausdehnungsgefäß selbsttätig.4.6 When the solar circuit pump (4) is at a standstill, the part of the system above the vessel (1) empties into the emptying and expansion vessel automatically.
4.7 Damit kein Luft-/Wasser-Gemisch umgewälzt wird, sind Zu- und Ablaufanschluß des Gefäßes unter dem Wasserspiegel angeordnet. Die Kollektoren (5) haben wie üblich den Rücklaufanschluß unten und den Vorlaufanschluß oben.4.7 So that no air / water mixture is circulated, additions and outlet connection of the vessel below the water level arranged. As usual, the collectors (5) have the return connection at the bottom and the flow connection at the top.
4.8 Für den Austausch des Luftpolsters wird eine 3· Leitung zwischen den höchsten wasserführenden Stellen der Kollektoren und des Gefäßes (1) installiert. Das Luftpolster wechselt von den Kollektoren (5) in das Ausdehnungsgefäß (1), wenn bei Wärmegewinn der Kollektorkreis in Tätigkeit geht.4.8 For the exchange of the air cushion, a 3 · pipe is required between the highest water-carrying points of the collectors and the vessel (1) installed. The air cushion changes from the collectors (5) to the expansion tank (1), if the collector circuit starts to work when there is heat gain.
909824/0023 - 3 -909824/0023 - 3 -
4.9 Zur Kontrolle beim Füllen der Anlage ist das Entleer- und Ausdehnungsgefäß (i) mit einem Wasserstandsanzeiger (3) versehen. Außer zum Abpressen der Gesamtanlage, wird nur der tiefliegende Anlagenteil bis zu einer bestimmten Marke im Gefäß gefüllt. Der höherliegende Rest der Anlage wird aus dem Entleer- und Ausdehnungsgefäß aufgefüllt.4.9 To check when filling the system, the drain and expansion vessel (i) with a water level indicator (3) Mistake. Except for pressing the entire system, only the deep system part is down to a certain mark filled in the vessel. The rest of the system at a higher level is filled from the emptying and expansion vessel.
4.10 Zusätzlich kann das Entleer- und Ausdehnungsgefäß (1) zur besseren Überwachung und zum Schutz gegen Trockenlauf der Umwälzpumpe (4) mit einem Wassermangelschalter (2) versehen werden.4.10 In addition, the emptying and expansion vessel (1) can be equipped with a low-water switch (2) for better monitoring and protection against dry running of the circulation pump (4) be provided.
4.11 Das Entleer- und Ausdehnungsgefäß (i) ist ebenso wie der Speicher hochwertig gegen Wärmeverlust zu dämmen.4.11 The emptying and expansion vessel (i) is just like the To insulate storage tanks against heat loss with high quality.
4.12 Als Entleer- und Ausdehnungsgefäß kann wie im Bild 2 dargestellt ein Speicher eingesetzt werden.4.12 A storage tank can be used as an emptying and expansion vessel, as shown in Figure 2.
5. Regelablauf der offenen Anlage mit Entleer- und Ausdehnungagefäß 5. Control sequence of the open system with emptying and expansion vessel
5.1 Ruhezustand:5.1 Idle state:
Kollektorpumpe (4) aus· Kollektoren (5) entleert. Entleerund Ausdehnungsgefäß (i) gefüllt. Kollektoranlage frost- und Ubertemperatursicher.Collector pump (4) emptied from collectors (5). Emptying and expansion vessel (i) filled. Collector system frost and over-temperature safe.
5.2 Betrieb:5.2 Operation:
Kollektorpumpe (4) ein, Kollektoren (5) werden aus dem Gefäß gefüllt, die Luft wird durch die Sekundärleitung ins Entleer- und Ausdehnungsgefäß gedrückt.Collector pump (4) on, collectors (5) are removed from the Vessel filled, the air is pressed through the secondary line into the emptying and expansion vessel.
5.3 Regelung:5.3 Regulation:
Wird vom Regelgerät (7) eine Temperaturdifferenz zwischen dem Fühler (8) im Kollektor und dem im Speicherwasser (i0) gemessen, schaltet es die Solarkreispumpe ein.If the control device (7) shows a temperature difference between Measured by the sensor (8) in the collector and that in the storage tank water (i0), it switches the solar circuit pump on.
5.4 Bei Erreichen der max. gewünschten Speicherwassertemperatur wird die Umwälzpumpe (4) abgeschaltet. Die Anlage geht in den Ruhezustand und ist frost- und Ubertemperatursicher.5.4 When the maximum required storage water temperature is reached, the circulation pump (4) is switched off. The attachment goes into standby mode and is frost and excess temperature safe.
5.5 Als zusätzliche Sicherung sind für das Abschalten der Pumpe (4) noch ein Maximalthermostat (9) im Speicherwasser und evtl. im Kollektor (8) sowie ein Wassermangelschalter (2) im Entleer- und Ausdehungsgefäß vorzusehen.5.5 As an additional safeguard for switching off the Pump (4) and a maximum thermostat (9) in the storage tank water and possibly in the collector (8) and a low water switch (2) in the emptying and expansion vessel.
909824/0023909824/0023
Blatt U - Ing.-Büro BMS, ?25O LeonbergSheet U - Ing.-Büro BMS,? 25O Leonberg
6. Vorteile der offenen Anlage mit Entleer- und Ausdehnungsgefäß 6. Advantages of the open system with emptying and expansion vessel
6.1 Jetzt und auf Dauer problemloser ist die offene Anlage, zusammengestellt aus bewährten Elementen der Heizungstechnik. Keine Sicherheitseinrichtungen gegen Überdruck und Übertemperatur erforderlich. Von der offenen Anlage geht keine Gefährdung aus.6.1 The open system, composed of tried and tested elements of heating technology, is now more problematic in the long term. No safety devices against overpressure and excess temperature required. There is no danger from the open system.
6.2 Die Solaranlage offener Konzeption, im kritischen Bereich entleert, kann mit billigem unbehandeltem Wasser gefüllt werden, da die Entleereinrichtung gegen Übertemperatur auch zur Vermeidung der Frostgefahr wirksam ist.6.2 The open concept solar system, emptied in the critical area, can be filled with cheap, untreated water as the emptying device is also effective against overtemperature to avoid the risk of frost.
Aufgestellt: BMS1 Leonberg, den 30. 11. 1977Set up: BMS 1 Leonberg, November 30, 1977
Busdr-Mitlccher- Schöpfer Pestalozzisir. 6Busdr Peer Creator Pestalozzisir. 6th
7250 Leonberg 17250 Leonberg 1
Tel. 07152/43206Tel. 07152/43206
909824/0023909824/0023
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772753756 DE2753756A1 (en) | 1977-12-02 | 1977-12-02 | Draining and expansion vessel for open solar heating system - provides security without temperature and pressure safety devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772753756 DE2753756A1 (en) | 1977-12-02 | 1977-12-02 | Draining and expansion vessel for open solar heating system - provides security without temperature and pressure safety devices |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2753756A1 true DE2753756A1 (en) | 1979-06-13 |
Family
ID=6025190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772753756 Pending DE2753756A1 (en) | 1977-12-02 | 1977-12-02 | Draining and expansion vessel for open solar heating system - provides security without temperature and pressure safety devices |
Country Status (1)
Country | Link |
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DE (1) | DE2753756A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058260A1 (en) * | 1979-04-02 | 1982-08-25 | Acro Energy Corp | Heat exchanger and drain down for solar collector |
FR2531523A1 (en) * | 1982-08-03 | 1984-02-10 | Sorelec | Heat-exchange device. |
EP1363081A2 (en) | 2002-05-13 | 2003-11-19 | Wagner & Co. Solartechnik GmbH | Solar installation |
DE19608405B4 (en) * | 1995-03-07 | 2006-04-13 | Bernhard Miller | heat storage |
FR2910600A1 (en) * | 2006-12-26 | 2008-06-27 | Philippe Liot | Power regulating method for hot water supplying installation, involves controlling displacement of screening units to regulate power of installation, and increasing power by opening partial screened part of downstream solar collector |
FR2926351A1 (en) * | 2008-01-11 | 2009-07-17 | Aflalo Joseph | Domestic supply water heating device, has exchanger with outlet connected to reservoir by duct provided with solenoid valve, opening and another duct provided with circulator, and pump advancing liquid from reservoir towards opening |
ES2354502A1 (en) * | 2008-10-10 | 2011-03-14 | Investigacion Y Desarrollo Electrico Asturiano, S.L. | Thermal solar installation and protection module for a thermal solar installation. (Machine-translation by Google Translate, not legally binding) |
EP2306116A1 (en) * | 2009-10-01 | 2011-04-06 | European Solar Engineering SA | Airtight primary circuit for a thermal solar system |
WO2013011039A1 (en) * | 2011-07-19 | 2013-01-24 | Thomere Finance | System for producing hot water using water-filled solar thermal collectors, in which a single circuit connects a hot water tank and the collectors, including an overheat protection device |
-
1977
- 1977-12-02 DE DE19772753756 patent/DE2753756A1/en active Pending
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0058260A1 (en) * | 1979-04-02 | 1982-08-25 | Acro Energy Corp | Heat exchanger and drain down for solar collector |
FR2531523A1 (en) * | 1982-08-03 | 1984-02-10 | Sorelec | Heat-exchange device. |
DE19608405B4 (en) * | 1995-03-07 | 2006-04-13 | Bernhard Miller | heat storage |
EP1363081A2 (en) | 2002-05-13 | 2003-11-19 | Wagner & Co. Solartechnik GmbH | Solar installation |
FR2910600A1 (en) * | 2006-12-26 | 2008-06-27 | Philippe Liot | Power regulating method for hot water supplying installation, involves controlling displacement of screening units to regulate power of installation, and increasing power by opening partial screened part of downstream solar collector |
FR2926351A1 (en) * | 2008-01-11 | 2009-07-17 | Aflalo Joseph | Domestic supply water heating device, has exchanger with outlet connected to reservoir by duct provided with solenoid valve, opening and another duct provided with circulator, and pump advancing liquid from reservoir towards opening |
ES2354502A1 (en) * | 2008-10-10 | 2011-03-14 | Investigacion Y Desarrollo Electrico Asturiano, S.L. | Thermal solar installation and protection module for a thermal solar installation. (Machine-translation by Google Translate, not legally binding) |
EP2306116A1 (en) * | 2009-10-01 | 2011-04-06 | European Solar Engineering SA | Airtight primary circuit for a thermal solar system |
WO2013011039A1 (en) * | 2011-07-19 | 2013-01-24 | Thomere Finance | System for producing hot water using water-filled solar thermal collectors, in which a single circuit connects a hot water tank and the collectors, including an overheat protection device |
FR2978235A1 (en) * | 2011-07-19 | 2013-01-25 | Thomere Finance | SYSTEM FOR PRODUCING SANITARY HOT WATER USING WATER THERMAL SOLAR SENSORS IN WHICH THE SAME CIRCUIT CONNECTS A HOT WATER BALL AND THE SENSORS, INCLUDING A DEVICE FOR PROTECTION AGAINST OVERHEATING. |
EP2947393A1 (en) * | 2011-07-19 | 2015-11-25 | Thomere Finance | Circuit for protection against the effects of overheating in a hot-water production system, and corresponding hot-water production system |
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Legal Events
Date | Code | Title | Description |
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OD | Request for examination | ||
OHJ | Non-payment of the annual fee |