EP0828117A2 - Method for preparing sanitary water in a mixed system - Google Patents

Method for preparing sanitary water in a mixed system Download PDF

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Publication number
EP0828117A2
EP0828117A2 EP97112904A EP97112904A EP0828117A2 EP 0828117 A2 EP0828117 A2 EP 0828117A2 EP 97112904 A EP97112904 A EP 97112904A EP 97112904 A EP97112904 A EP 97112904A EP 0828117 A2 EP0828117 A2 EP 0828117A2
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EP
European Patent Office
Prior art keywords
heating
water
hot water
switched
circulation pump
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Granted
Application number
EP97112904A
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German (de)
French (fr)
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EP0828117B1 (en
EP0828117A3 (en
Inventor
Ulrich Besser
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Robert Bosch GmbH
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Robert Bosch GmbH
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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
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/238—Flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/36—Control of heat-generating means in heaters of burners

Definitions

  • the invention is based on a method for Domestic hot water provision in a combined system the genus of the main claim. It is from the applicant so-called combi heaters for heating and Domestic hot water preparation known in which the domestic water indirectly via that in a heating water circuit circulating heating water is heated. Especially outside the heating season it takes a certain time before the domestic water is the one desired by the consumer Has reached outlet temperature, because only with the Hot water withdrawal of the heating water circuit activated becomes.
  • the process according to the invention has the process water its desired already at the start of the hot water withdrawal Outlet temperature reached, so that immediately warm Process water is available. Besides a higher one Domestic water convenience can also reduce water consumption be reduced.
  • Activating a flow of domestic water sensor is advantageously carried out by a briefly pressing one at a tap arranged valve.
  • the pump and burner are switched on in expediently via a central control unit.
  • the one activated for hot water preparation Heating water circuit is advantageously over one arranged close to a heating heat exchanger Bypass separated from the heater. This will only the minimum heating water circulation required for the provision of process water heated.
  • the flow of process water becomes in the flow sensor generates a negative pressure acting on a membrane, wherein a microswitch is actuated by the deflection of the membrane the dispenser preparation signal via the control unit and thus switching on the pump and the burner causes.
  • Figure 1 is a schematically shown device for Heating heating water and process water and Figure 2 a sensor for hot water preparation.
  • the device for heating rotating Heating water and domestic water have one in one Heating circuit arranged and from the heating water flowed through the heat exchanger 10, the fins 11 of the combustion gases of a burner 12 directly are acted upon.
  • the heating heat exchanger 10 supplies one between a lead section 14 and one Return section 16 of the heating circuit arranged Heating device, for example a radiator 18 with Heating water, in the return section 16 a Circulation pump 20 for conveying the circulating heating water is arranged.
  • a Circulation pump 20 for conveying the circulating heating water is arranged.
  • an im Heating heat exchanger 10 arranged and from the heating water flow around hot water heat exchanger 22 is provided.
  • Process water supply device feeds one or more Dispensing points via a cold water connection 24, a Flow of the hot water sensor 26 and a Hot water connection 28 with hot water.
  • Heating water to the in the domestic water heat exchanger 22 flowing hot water can take place is via an in Return section 16 of the heating circuit 14, 16 arranged three-way valve 30 and via a bypass 32 the heating circuit 14, 16 separated.
  • the heating heat exchanger 10 on the Flow section 14, bypass 32, three-way valve 30, Return section 16 and pump 20 back to Heater heat exchanger 10 leads, is the following inner Heating circuit called 36, while the heating circuit, the from the heating heat exchanger 10 via flow section 14, Radiator 18 and return section 16 back to Heater heat exchanger 10 leads, in the following as the outer Heating circuit 38 is called.
  • a temperature sensor 39 for Detection of the flow temperature of the heating water arranged.
  • the sensor 26 shown in more detail in FIG. 2 has one Water quantity regulator 40, a membrane 42, a Venturi nozzle 44, a plunger 46 acted upon by the membrane 42 and a microswitch 48 and a water quantity selector 50 with Relief valve on.
  • the burner 12, the pump 20, the water switch 26 and the Microswitch 48 of the water switch, the three-way valve 30 and the temperature sensor 39 are via lines (shown in dashed lines) with a central control device 52 connected.
  • the device for heating circulating heating water and process water works in the following way:
  • the burner 12 is ignited and with With the help of the circulation pump 20, the outer heating circuit 38 activated, the in the outer heating circuit 38th arranged radiator 18 can be charged with heating water.
  • valve 53 for Example the hot water valve of a single lever mixer tap opened for approx. 1 second and closed again.
  • Water flow controller 40 of the sensor 26 opened and on Vacuum generated above the membrane 42. This will make the Membrane 42 together with the plunger 46 moves upward in turn actuated the microswitch 48.
  • the burner 12 is ignited and the Circulation pump 20 switched on.
  • the three-way valve 30 will switched so that the heating water in the inner heating circuit 36 begins to circulate.
  • the target temperature for the heating water is preset, the later the maximum outlet temperature of the hot water certainly.
  • the flow temperature sensor 39 Actual value of the heating water temperature is recorded and the heating water up to the set heating water temperature of e.g. 60 ° C heated. After a few seconds the heating water has the set target temperature is reached and if Opening the valve 53 at the hot water connection 28 can actual hot water withdrawal immediately warm Process water, the temperature of which if necessary. still by the expand mixed down by cold water.

Abstract

The method involves heating the drinking water indirectly through the heating water, whereby, in case of removal of drinking water, a circulation pump in a heating water circulation and a burner for heating the heating water, are switched on through a sensor detecting a flow of the drinking water. The circulation pump (20) and the burner (12) are switched on through a tap preparation signal produced by the sensor (26), and remain in operation up to the end of the tapping of drinking water. At absence of the tapping of the drinking water within a predetermined time, the circulation pump and the burner are switched off.

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Verfahren zur Brauchwasserbereitstellung in einem kombinierten System nach der Gattung des Hauptanspruchs. Es sind von der Anmelderin sogenannte Kombi-Heizgeräte zum Heizen und zur Brauchwasserbereitung bekannt, bei denen das Brauchwasser mittelbar über das in einem Heizungswasserkreislauf zirkulierende Heizungswasser erwärmt wird. Insbesondere außerhalb der Heizperiode dauert es eine gewisse Zeit, ehe das Brauchwasser seine vom Verbraucher gewünschte Auslauftemperatur erreicht hat, da erst mit der Brauchwasserentnahme der Heizungswasserkreislauf aktiviert wird.The invention is based on a method for Domestic hot water provision in a combined system the genus of the main claim. It is from the applicant so-called combi heaters for heating and Domestic hot water preparation known in which the domestic water indirectly via that in a heating water circuit circulating heating water is heated. Especially outside the heating season it takes a certain time before the domestic water is the one desired by the consumer Has reached outlet temperature, because only with the Hot water withdrawal of the heating water circuit activated becomes.

Vorteile der ErfindungAdvantages of the invention

Durch das erfindungsgemäße Verfahren hat das Brauchwasser bereits bei Beginn der Brauchwasserentnahme seine gewünschte Auslauftemperatur erreicht, so daß sofort warmes Brauchwasser zur Verfügung steht. Neben einem höheren Brauchwasserkomfort kann damit auch der Wasserverbrauch reduziert werden.The process according to the invention has the process water its desired already at the start of the hot water withdrawal Outlet temperature reached, so that immediately warm Process water is available. Besides a higher one Domestic water convenience can also reduce water consumption be reduced.

Das Aktivieren des eine Strömung des Brauchwassers erfassenden Sensors erfolgt in vorteilhafter Weise durch ein kurzzeitiges Betätigen eines an einer Zapfstelle angeordneten Ventils.Activating a flow of domestic water sensor is advantageously carried out by a briefly pressing one at a tap arranged valve.

Das für die Inbetriebnahme des Heizungswasserkreislaufs notwendige Einschalten der Pumpe und des Brenners erfolgt in zweckmäßigerweise über ein zentrales Steuergerät.That for the commissioning of the heating water circuit the pump and burner are switched on in expediently via a central control unit.

Der zur Brauchwasserbereitung aktivierte Heizungswasserkreislauf wird in vorteilhafter Weise über einen nahe an einem Heizungswärmetauscher angeordneten Bypass von der Heizeinrichtung abgetrennt. Damit wird nur die zur Brauchwasserbereitstellung notwendige Mindest-Heizungswasserumlaufmenge erhitzt.The one activated for hot water preparation Heating water circuit is advantageously over one arranged close to a heating heat exchanger Bypass separated from the heater. This will only the minimum heating water circulation required for the provision of process water heated.

Im Durchflußsensor wird aus der Strömung des Brauchwassers ein auf eine Membran wirkender Unterdruck erzeugt, wobei durch die Auslenkung der Membran ein Mikroschalter betätigt wird, der über das Steuergerät das Zapfvorbereitungssignal und damit das Einschalten der Pumpe und des Brenners bewirkt.The flow of process water becomes in the flow sensor generates a negative pressure acting on a membrane, wherein a microswitch is actuated by the deflection of the membrane the dispenser preparation signal via the control unit and thus switching on the pump and the burner causes.

Zeichnungdrawing

In der Zeichnung ist eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens dargestellt, das in der nachfolgenden Beschreibung näher erläutert wird. Es zeigen Figur 1 eine schematisch dargestellte Einrichtung zum Erhitzen von Heizungswasser und Brauchwasser und Figur 2 einen Sensor zur Brauchwasserbereitung. In the drawing, a device for performing the illustrated method according to the invention in the following description is explained in more detail. Show it Figure 1 is a schematically shown device for Heating heating water and process water and Figure 2 a sensor for hot water preparation.

AusführungsbeispielEmbodiment

Die zur Durchführung des erfindungsgemäßen Verfahrens vorgesehene Einrichtung zum Erhitzen von umlaufendem Heizungswasser und Brauchwasser weist einen in einem Heizungskreislauf angeordneten und vom Heizungswasser durchströmten Heizungswärmetauscher 10 auf, dessen Lamellen 11 von den Verbrennungsgasen eines Brenners 12 unmittelbar beaufschlagt sind. Der Heizungswärmetauscher 10 versorgt eine zwischen einem Vorlaufabschnitt 14 und einem Rücklaufabschnitt 16 des Heizungskreislaufs angeordnete Heizeinrichtung, zum Beispiel einen Heizkörper 18, mit Heizungswasser, wobei im Rücklaufabschnitt 16 eine Umlaufpumpe 20 zum Fördern des umlaufenden Heizungswassers angeordnet ist. Für die Brauchwasserbereitung ist ein im Heizungswärmetauscher 10 angeordneter und vom Heizungswasser umströmter Brauchwasserwärmetauscher 22 vorgesehen. Eine mit dem Brauchwasserwärmetauscher 22 verbundene Brauchwasserversorgungseinrichtung speist eine oder mehrere Zapfstellen über einen Kaltwasseranschluß 24, einen eine Strömung des Brauchwassers erfassenden Sensor 26 und einen Warmwasseranschluß 28 mit Brauchwasser.To carry out the method according to the invention provided device for heating rotating Heating water and domestic water have one in one Heating circuit arranged and from the heating water flowed through the heat exchanger 10, the fins 11 of the combustion gases of a burner 12 directly are acted upon. The heating heat exchanger 10 supplies one between a lead section 14 and one Return section 16 of the heating circuit arranged Heating device, for example a radiator 18 with Heating water, in the return section 16 a Circulation pump 20 for conveying the circulating heating water is arranged. For domestic hot water preparation, an im Heating heat exchanger 10 arranged and from the heating water flow around hot water heat exchanger 22 is provided. One with the hot water heat exchanger 22 connected Process water supply device feeds one or more Dispensing points via a cold water connection 24, a Flow of the hot water sensor 26 and a Hot water connection 28 with hot water.

Damit für die Brauchwasserbereitung ein kontinuierlicher Wärmeübergang von im Heizungswärmetauscher 10 befindlichem Heizungswasser auf das im Brauchwasserwärmetauscher 22 strömende Brauchwasser stattfinden kann, wird über ein im Rücklaufabschnitt 16 des Heizungskreislaufs 14, 16 angeordnetes Drei-Wege-Ventil 30 und über einen Bypass 32 der Heizungskreislauf 14, 16 aufgetrennt. Der Heizungskreislauf, der vom Heizungswärmetauscher 10 über den Vorlaufabschnitt 14, Bypass 32, Drei-Wege-Ventil 30, Rücklaufabschnitt 16 und Pumpe 20 zurück zum Heizungswärmetauscher 10 führt, wird im folgenden innerer Heizkreislauf 36 genannt, während der Heizungskreislauf, der vom Heizungswärmetauscher 10 über Vorlaufabschnitt 14, Heizkörper 18 und Rücklaufabschnitt 16 zurück zum Heizungswärmetauscher 10 führt, im folgenden als äußerer Heizkreislauf 38 bezeichnet wird. Weiterhin ist am Ausgang des Heizungswärmetauschers 10 ein Temperaturfühler 39 zur Erfassung der Vorlauftemperatur des Heizungswassers angeordnet.So that for the hot water preparation a continuous Heat transfer from located in the heating heat exchanger 10 Heating water to the in the domestic water heat exchanger 22 flowing hot water can take place is via an in Return section 16 of the heating circuit 14, 16 arranged three-way valve 30 and via a bypass 32 the heating circuit 14, 16 separated. Of the Heating circuit, the heating heat exchanger 10 on the Flow section 14, bypass 32, three-way valve 30, Return section 16 and pump 20 back to Heater heat exchanger 10 leads, is the following inner Heating circuit called 36, while the heating circuit, the from the heating heat exchanger 10 via flow section 14, Radiator 18 and return section 16 back to Heater heat exchanger 10 leads, in the following as the outer Heating circuit 38 is called. Still at the exit of the heat exchanger 10, a temperature sensor 39 for Detection of the flow temperature of the heating water arranged.

Der in Figur 2 genauer dargestellte Sensor 26 weist einen Wassermengenregler 40, eine Membran 42, eine Venturidüse 44, einen von der Membran 42 beaufschlagbaren Stößel 46 sowie einen Mikroschalter 48 und einen Wassermengenwähler 50 mit Entlastungsventil auf.The sensor 26 shown in more detail in FIG. 2 has one Water quantity regulator 40, a membrane 42, a Venturi nozzle 44, a plunger 46 acted upon by the membrane 42 and a microswitch 48 and a water quantity selector 50 with Relief valve on.

Der Brenner 12, die Pumpe 20, der Wasserschalter 26 bzw. der Mikroschalter 48 des Wasserschalters, das Drei-Wege-Ventil 30 und der Temperaturfühler 39 sind über Leitungen (gestrichelt dargestellt) mit einem zentralen Steuergerät 52 verbunden.The burner 12, the pump 20, the water switch 26 and the Microswitch 48 of the water switch, the three-way valve 30 and the temperature sensor 39 are via lines (shown in dashed lines) with a central control device 52 connected.

Die Einrichtung zum Erhitzen von umlaufendem Heizungswasser und Brauchwasser arbeitet auf folgende Art und Weise:The device for heating circulating heating water and process water works in the following way:

a) Heizungsbetrieba) Heating operation

Liegt zum Beispiel über eine Raumthermostatregelung eine Wärmeanforderung an, so wird der Brenner 12 gezündet und mit Hilfe der Umwälzpumpe 20 der äußere Heizkreislauf 38 aktiviert, wobei die im äußeren Heizkreislauf 38 angeordneten Heizkörper 18 mit Heizwasser beschickt werden.For example, if there is a room thermostat control Heat request, the burner 12 is ignited and with With the help of the circulation pump 20, the outer heating circuit 38 activated, the in the outer heating circuit 38th arranged radiator 18 can be charged with heating water.

b) Brauchwasserbereitungb) DHW heating

Mit Hilfe des Sensors 26 der Brauchwassereinrichtung wird der Befehl zur Brauchwassererwärmung gegeben. Dazu wird ein am Warmwasseranschluß 28 angeordnetes Ventil 53, zum Beispiel das Warmwasserventil einer Einhebelmischbatterie für ca. 1 Sekunde geöffnet und wieder geschlossen. Durch das kurzzeitige Öffnen des Ventils 53 wird der Wassermengenregler 40 des Sensors 26 geöffnet und ein Unterdruck oberhalb der Membran 42 erzeugt. Dadurch wird die Membran 42 zusammen mit dem Stößel 46 nach oben bewegt, der wiederum den Mikroschalter 48 betätigt. Über ein entsprechendes Zapfvorbereitungssignal an das zentrale Steuergerät 52 wird der Brenner 12 gezündet und die Umlaufpumpe 20 eingeschaltet. Das Drei-Wege-Ventil 30 wird so geschaltet, daß das Heizwasser im inneren Heizkreislauf 36 zu zirkulieren beginnt.With the help of the sensor 26 of the domestic water device given the command for domestic water heating. To do this, a at the hot water connection 28 arranged valve 53 for Example the hot water valve of a single lever mixer tap opened for approx. 1 second and closed again. By the momentary opening of the valve 53 Water flow controller 40 of the sensor 26 opened and on Vacuum generated above the membrane 42. This will make the Membrane 42 together with the plunger 46 moves upward in turn actuated the microswitch 48. About one corresponding tapping preparation signal to the central Control unit 52, the burner 12 is ignited and the Circulation pump 20 switched on. The three-way valve 30 will switched so that the heating water in the inner heating circuit 36 begins to circulate.

Im Steuergerät 52 wurde für die Brauchwasserbereitstellung die Solltemperatur für das Heizwasser voreingestellt, die später die maximale Auslauftemperatur des Brauchwassers bestimmt. Über den Vorlauftemperaturfühler 39 wird der Istwert der Heizwassertemperatur erfaßt und das Heizwasser bis zur eingestellten Heizwassertemperatur von z.B. 60° C erhitzt. Nach einigen Sekunden hat das Heizwasser die eingestellte Solltemperatur erreicht und bei einem erneuten Öffnen des Ventils 53 am Warmwasseranschluß 28 kann zur eigentlichen Brauchwasserentnahme sofort warmes Brauchwasser, dessen Temperatur gfs. noch durch die Zugabe von kaltem Wasser heruntergemischt wird, entnommen werden.In the control unit 52 was for the hot water supply the target temperature for the heating water is preset, the later the maximum outlet temperature of the hot water certainly. Via the flow temperature sensor 39 Actual value of the heating water temperature is recorded and the heating water up to the set heating water temperature of e.g. 60 ° C heated. After a few seconds the heating water has the set target temperature is reached and if Opening the valve 53 at the hot water connection 28 can actual hot water withdrawal immediately warm Process water, the temperature of which if necessary. still by the encore mixed down by cold water.

Erfolgt nach dem Zapfvorbereitungssignal innerhalb einer festlegbaren Zeit von zum Beispiel 5 Minuten keine Brauchwasserentnahme, so werden der Brenner 12 und die Umlaufpumpe 20 über einen im Steuergerät 52 integrierten Zeitschalter wieder abgeschaltet.Takes place within a after the tap preparation signal definable time of 5 minutes, for example Hot water withdrawal, so the burner 12 and Circulation pump 20 via an integrated in the control unit 52 Timer switched off again.

Claims (6)

Verfahren zur Brauchwasserbereitstellung in einem kombinierten System zum Heizen und zur Brauchwasserbereitung, wobei das Brauchwasser mittelbar über das Heizungswasser erwärmt wird und wobei im Fall der Brauchwasserentnahme über einen eine Strömung des Brauchwassers detektierenden Sensor eine Umlaufpumpe in einem Heizungswasserkreislauf und ein Brenner zur Erwärmung des Heizungswassers einschaltbar sind, dadurch gekennzeichnet, daß die Umlaufpumpe (20) und der Brenner (12) durch ein vom Sensor (26) erzeugtes Zapfvorbereitungssignal einschaltbar sind und bis zum Ende der zeitversetzten Brauchwasserentnahme in Betrieb bleiben, oder daß bei einem Ausbleiben der Brauchwasserentnahme innerhalb einer festlegbaren Zeit Umlaufpumpe (20) und Brenner (12) abschaltbar sind.Process for hot water supply in one combined heating and heating system Domestic hot water preparation, the domestic water being indirectly the heating water is heated and in the case of Hot water withdrawal via a flow of water Hot water detecting sensor in a circulation pump a heating water circuit and a burner for heating of the heating water can be switched on, thereby characterized in that the circulation pump (20) and the burner (12) by one generated by the sensor (26) Dispensing signal can be switched on and to the end the time-delayed hot water extraction remains in operation, or that if there is no hot water withdrawal circulation pump (20) and within a definable time Burner (12) can be switched off. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß durch ein kurzzeitiges Betätigen einer Zapfvorrichtung die vom Sensor (26) detektierte Strömung erzeugt wird.A method according to claim 1, characterized in that by briefly pressing a tap flow generated by the sensor (26) is generated. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Strömung durch ein kurzzeitiges Öffnen eines Ventiles (53) in der Brauchwasserleitung erzeugt wird.A method according to claim 2, characterized in that the flow by briefly opening a valve (53) is generated in the hot water pipe. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Umlaufpumpe (20) und der Brenner (12) über ein zentrales Steuergerät (52) an- bzw. abschaltbar sind.Method according to one of the preceding claims, characterized in that the circulation pump (20) and Torch (12) on or via a central control unit (52) can be switched off. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß mit dem Einschalten der Umlaufpumpe (20) und des Brenners (12) ein nahe an einem Heizungswärmeübertrager (10) angeordneter Bypass (32) geschaltet wird.Method according to one of the preceding claims, characterized in that when the Circulation pump (20) and the burner (12) close to one Heating bypass (10) arranged bypass (32) is switched. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß über eine im Sensor (26) angeordnete Venturidüse (44) ein auf eine Membran (42) wirkender Unterdruck erzeugt und durch die Auslenkung der Membran (42) ein Mikroschalter (48) betätigt wird.Method according to one of the preceding claims, characterized in that via a sensor (26) arranged Venturi nozzle (44) on a membrane (42) acting negative pressure generated and by the deflection of the Membrane (42) a microswitch (48) is actuated.
EP97112904A 1996-09-06 1997-07-26 Method for preparing sanitary water in a mixed system Expired - Lifetime EP0828117B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19636360 1996-09-06
DE19636360A DE19636360C2 (en) 1996-09-06 1996-09-06 Process for hot water supply in a combined system

Publications (3)

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EP0828117A2 true EP0828117A2 (en) 1998-03-11
EP0828117A3 EP0828117A3 (en) 1999-04-21
EP0828117B1 EP0828117B1 (en) 2002-10-16

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DE (2) DE19636360C2 (en)
ES (1) ES2185847T3 (en)

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Publication number Priority date Publication date Assignee Title
AT412576B (en) * 1999-07-08 2005-04-25 Vaillant Gmbh DEVICE AND METHOD FOR CONTROLLING A BURNER
EP1528371A1 (en) * 2003-11-03 2005-05-04 Grundfos A/S Assembly for a compact heating installation

Also Published As

Publication number Publication date
EP0828117B1 (en) 2002-10-16
DE19636360C2 (en) 2001-05-23
DE59708482D1 (en) 2002-11-21
EP0828117A3 (en) 1999-04-21
ES2185847T3 (en) 2003-05-01
DE19636360A1 (en) 1998-03-12

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