EP1130329B1 - Instantaneous water heater - Google Patents

Instantaneous water heater Download PDF

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Publication number
EP1130329B1
EP1130329B1 EP01102103A EP01102103A EP1130329B1 EP 1130329 B1 EP1130329 B1 EP 1130329B1 EP 01102103 A EP01102103 A EP 01102103A EP 01102103 A EP01102103 A EP 01102103A EP 1130329 B1 EP1130329 B1 EP 1130329B1
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EP
European Patent Office
Prior art keywords
water heater
temperature
setpoint
value
instantaneous water
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.)
Expired - Lifetime
Application number
EP01102103A
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German (de)
French (fr)
Other versions
EP1130329A2 (en
EP1130329A3 (en
Inventor
Achim Burgdorf
Jochen Grabe
Peter Holschbach
Andreas Ruf
Hans-Josef Spahn
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Vaillant GmbH
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Vaillant GmbH
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Publication date
Application filed by Vaillant GmbH filed Critical Vaillant GmbH
Priority to AT01102103T priority Critical patent/ATE321982T1/en
Publication of EP1130329A2 publication Critical patent/EP1130329A2/en
Publication of EP1130329A3 publication Critical patent/EP1130329A3/en
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Publication of EP1130329B1 publication Critical patent/EP1130329B1/en
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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
    • F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the 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
    • 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
    • F24H15/30—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 relates to a continuous water heater according to the preamble of claim 1.
  • a function "warm start” in which a small heater arranged in the water heater is kept at an adjustable temperature to provide a hot water tap very quickly according to hot water at the tap can.
  • Document DE4409855A1 shows a water heater with a setpoint generator for setting the outlet temperature of the service water and with two temperature sensors that detect the temperatures in the heating circuit flow and in the hot water outlet.
  • Two comparators compare the measured temperatures in each case with the value specified by the setpoint generator or a service water temperature controller and pass the difference value on to a burner controlling pre-emergence temperature exciter.
  • the two comparators are connected in series in service water mode: The result of the comparator is fed to the service water temperature controller, which determines therefrom the setpoint for the flow temperature, which in turn is fed to an input of the comparator.
  • the output of the comparator is connected to a flow temperature controller that controls the output of the burner.
  • the aim of the invention is to avoid these disadvantages and to propose a continuous water heater of the type mentioned, which is characterized by a simple structure and ease of use.
  • one of the threshold value switches e.g. when 90% of the setting range is exceeded, and the other threshold switch is switched below 10% of the maximum setting value, whereby the flip-flop is set or reset.
  • FIG. 1 shows a circulating water heater 30 which has a heat exchanger 32 heated by a burner 31.
  • the heat exchanger 32 is fed from a provided with a pump 33 return line 34 with water, which is discharged after heating by the heat exchanger from a provided with a temperature sensor 35 flow line 36.
  • the line 36 leads to a collective heating system, not shown, from her branches off a line 37, which leads to a Bankwasser- / domestic water heat exchanger 38 leads, which leads via a heat exchanger return line 39 to a switching valve 40, which is connected via a line piece 41 to the pump 33 at the return side.
  • the temperature sensor 35 is connected via a measuring line 42 with a control / control device 43 which is connected via a control line 44 with an electromagnet 45 of a gas valve 46 which is arranged in the course of a gas line 47 to the burner 31.
  • a motor 49 of the pump 33 is connected via a line 48.
  • Another whilitung 50 leads to an electromagnet 51, which affects the switching valve 40 via a lever 52, which is connected on the side facing away from the line piece 41 via a line 53 with the aforementioned heating system.
  • the Schuwasser- / domestic water heat exchanger 38 is penetrated by a bleed line 54 which is closed by a nozzle 55.
  • the bleed line 54 is connected via the coil with a cold water network 58.
  • a temperature sensor is provided, which is connected via a measuring line with the control and regulating device 43.
  • a setpoint generator 15 is provided, which is designed in the form of a variable resistor.
  • the center terminal 21 of the desired value transmitter 15 is connected to one input each of two comparators 4, 6 via connecting lines 22, 23.
  • the second input of the comparator 4 via a connecting line 8 with a not shown, the temperature of the service water sensing sensor and the second input of the comparator 6 is connected via a connecting line 10 with a likewise not shown, the temperature detected in a small memory sensor.
  • the connecting line 23 is connected to a further connecting line 24, via which a connection of the central terminal 21 of the desired value transmitter 15 with the inputs of two threshold value switches 17 and 18 is made.
  • the threshold value switch 17 switches through when the setpoint value is more than 90% of the maximum possible setpoint value.
  • Threshold switch 18 switches on when the setpoint value set with desired value generator 15 is less than 10% of the maximum possible setpoint value.
  • the outputs of the comparators 4 and 6 are connected via connecting lines 5 and 7 with a logic 13. With this also the output Q of a flip-flop 16 is connected via a connecting line 12. The inputs of the flip-flop 16 are connected via connecting lines 19 and 20 to the outputs of the threshold value switches 17, and 18, respectively.
  • the logic is via a control line 14 with auxiliary units, not shown, for a burner, such as gas valve, blower and the like. connected
  • the threshold value switch 17 outputs a signal and sets the flip-flop 16, whereby the logic 13 is set to the "warm start” operating mode.
  • the logic ensures that the burner is kept in operation in the absence of tap of hot water or in operation, that the temperature is kept in the small memory at a value corresponding to the set target value. It does not necessarily have to be the setpoint specified for the service water temperature, but it may be a value derived therefrom according to a specific algorithm.
  • threshold value switch 18 sends a signal to flip-flop 16 and resets it, as a result of which the "warm start” operating mode is switched off.
  • the activation of the operating mode "warm start” is effected by, albeit only briefly, exceeding 90% of the maximum possible setpoint value when setting the setpoint.

Abstract

Device has integral small reservoir, controller for heat source for water heater and small reservoir and only one demand value generator (15) for setting output temperature of water heater. Demand value generator is connected to logic (13) controlling burner via comparators (4,6) connected to temperature sensor detecting external temperature and temperature sensor mounted in small reservoir.

Description

Die Erfindung bezieht sich auf einen Durchlauf-Wasserheizer gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a continuous water heater according to the preamble of claim 1.

Bei solchen Wassefieizem ist eine Funktion "Warmstart" vorgesehen, bei der ein im Wasserheizer angeordneter Kleinspeicher auf einer einstellbaren Temperatur gehalten wird, um bei einer Brauchwasserzapfung sehr schnell entsprechend warmes Wasser an der Zapfstelle bereitstellen zu können.In such Wassefieizem a function "warm start" is provided, in which a small heater arranged in the water heater is kept at an adjustable temperature to provide a hot water tap very quickly according to hot water at the tap can.

Bei bekannten derartigen Wasserheizern sind für die Festlegung der Auslauftemperatur und der Temperatur des Kleinspeichers je ein separater Sollwertgeber, sowie ein Schalter zum Aus- und Einschalten der Funktion "Warmstart" vorgesehen. Dadurch ergibt sich eine sehr erhebliche Anzahl von Einstellorganen, wodurch sich auch ein erhebliches Maß an Unübersichtlichkeit und Kompliziertheit der Bedienung ergibt. Außerdem sind auch sehr leicht Bedienungsfehler in der Weise möglich, daß unstimmige Konditionen eingestellt werden, wie z.B. Auslauftemperatur 35°C und Speichertemperatur 50°C.In known water heaters such a separate setpoint generator, and a switch for switching off and on the function "warm start" are provided for determining the outlet temperature and the temperature of the small memory. This results in a very significant number of adjustment, which also results in a considerable degree of confusion and complexity of operation. In addition, operator errors are also very easily possible in the manner that incongruous conditions are set, such. Outlet temperature 35 ° C and storage temperature 50 ° C.

Dokument DE4409855A1 zeigt ein Wasserheizgerät mit einen Sollwertgeber zur Einstellung der Auslauftemperatur des Brauchwassers und mit zwei Temperaturfühlern, die die Temperaturen im Heizkreis-Vorlauf und im Brauchwasser-Auslauf erfassen. Zwei Vergleicher vergleichen die gemessenen Temperaturen jeweils mit dem vom Sollwertgeber bzw. einem Brauchwassertemperaturregler vorgegebenen Wert und geben den Differenzwert an einem den Brenner steuernden Vortauftemperaturregter weiter. Die beiden Vergleicher sind im Brauchwasser-Betrieb in Reihe geschaltet: Das Ergebnis des Vergleichers wird dem Brauchwassertemperaturregler zugeführt, der daraus den Sollwert für die Vorlauftemperatur bestimmt, der dann wiederum in einen Eingang des Vergleichers geführt wird. Der Ausgang des Vergleichers ist mit einem Vorlauftemperaturregler verbunden, der die Leistung des Brenners steuert.Document DE4409855A1 shows a water heater with a setpoint generator for setting the outlet temperature of the service water and with two temperature sensors that detect the temperatures in the heating circuit flow and in the hot water outlet. Two comparators compare the measured temperatures in each case with the value specified by the setpoint generator or a service water temperature controller and pass the difference value on to a burner controlling pre-emergence temperature exciter. The two comparators are connected in series in service water mode: The result of the comparator is fed to the service water temperature controller, which determines therefrom the setpoint for the flow temperature, which in turn is fed to an input of the comparator. The output of the comparator is connected to a flow temperature controller that controls the output of the burner.

Ziel der Erfindung ist es, diese Nachteile zu vermeiden und einen Durchlauf-Wasserheizer der eingangs erwähnten Art vorzuschlagen, der sich durch einen einfachen Aufbau und eine einfache Bedienung auszeichnet.The aim of the invention is to avoid these disadvantages and to propose a continuous water heater of the type mentioned, which is characterized by a simple structure and ease of use.

Erfindungsgemäß wird dies bei einem Wasserheizer der eingangs erwähnten Art durch die kennzeichnenden Merkmale des Anspruches 1 erreicht.According to the invention this is achieved in a water heater of the type mentioned by the characterizing features of claim 1.

Durch die vorgeschlagenen Maßnahmen ergibt sich eine wesentlich vereinfachte Bedienung des Gerätes. So kann dadurch mit einer einzigen Einstellung sowohl die Auslauftemperatur als auch die Speichertemperatur eingestellt werden. Außerdem ist dadurch auch gewährleistet, daß es zu keinen unstimmigen Einstellungen der Sollwerte kommt.The proposed measures results in a much simplified operation of the device. Thus, with a single adjustment both the outlet temperature and the storage tank temperature can be adjusted. In addition, this also ensures that there are no inconsistent settings of the setpoints.

Durch die Merkmale des Anspruches 2 ergibt sich der Vorteil, daß auch auf einen Schalter zum Ein- und Ausschalten der Funktion "Warmstart" verzichtet werden kann. Diese Funktion kann von den beiden Schwellwert-Schaltern in Verbindung mit dem Flip-Flop übernommen werden.Due to the features of claim 2, there is the advantage that can be dispensed with a switch for switching on and off the function "warm start". This function can be taken over by the two threshold switches in conjunction with the flip-flop.

In diesem Zusammenhang ist es vorteilhaft, die Merkmale des Anspruches 3 vorzusehen. Dabei kann z.B. einer der Schwellwertschalter z.B. bei Überschreiten von 90% des Einstellbereiches durchschalten und der andere Schwellwertschalter bei Unterschreiten von 10% des maximalen Einstellwertes durchschalten, wodurch das Flip-Flop gesetzt bzw. zurückgesetzt wird.In this context, it is advantageous to provide the features of claim 3. In this case, e.g. one of the threshold value switches e.g. when 90% of the setting range is exceeded, and the other threshold switch is switched below 10% of the maximum setting value, whereby the flip-flop is set or reset.

Die Erfindung wird nun anhand der Zeichnung näher erläutert.

Fig. 1
zeigt einen Umlaufwasserheizer und
Fig. 2
zeigt die schematische Steuerung eines erfindungsgemäßen Umlaufinrasserheizers.
The invention will now be explained in more detail with reference to the drawing.
Fig. 1
shows a circulating water heater and
Fig. 2
shows the schematic control of a Umlaufinrasserheizers invention.

In der Fig. 1 ist ein Umlaufwasserheizer 30 ersichtlich, der einen von einem Brenner 31 beheizten Wärmetauscher 32 aufweist. Der Wärmetauscher 32 ist aus einer mit einer Pumpe 33 versehenen Rücklaufleitung 34 mit Wasser gespeist, das nach der Erwärmung durch den Wärmetauscher von einer mit einem Temperaturfühler 35 versehenen Vorlaufleitung 36 abgeführt ist. Die Leitung 36 führt zu einer nicht dargestellten Sammelheizungsanlage, von ihr zweigt eine Leitung 37 ab, die zu einem Heizwasser-/Brauchwasserwärmetauscher 38 führt, die über eine Wärmetauscherrücklaufleitung 39 zu einem Umschaltventil 40 führt, das über ein Leitungsstück 41 mit der Pumpe 33 rücklaufseitig verbunden ist. Der Temperaturfühler 35 ist über eine Meßleitung 42 mit einer Regel-/Steuereinrichtung 43 verbunden, die über eine Stelleitung 44 mit einem Elektromagneten 45 eines Gasventils 46 verbunden ist, das im Zuge einer Gasleitung 47 zum Brenner 31 angeordnet ist. Mit der Regel-/Steuereinrichtung 43 ist über eine Leitung 48 ein Motor 49 der Pumpe 33 verbunden. Eine weitere Stelleitung 50 führt zu einem Elektromagneten 51, der über einen Hebel 52 das Umschaltventil 40 beeinflußt, welches auf der dem Leitungsstück 41 abgewandten Seite über eine Leitung 53 mit der vorhin erwähnten Heizanlage verbunden ist. Der Heizwasser-/Brauchwasserwärmetauscher 38 ist von einer Zapfleitung 54 durchsetzt, die mit einem Zapfventil 55 verschließbar ist. Die Zapfleitung 54 ist über die Rohrschlange mit einem Kaltwassemetz 58 verbunden. Im Innenraum des Sekundärwärmetauschers 56 ist ein Temperaturfühler vorgesehen, der über eine Messleitung mit der Steuer- und Regeleinrichtung 43 verbunden ist.FIG. 1 shows a circulating water heater 30 which has a heat exchanger 32 heated by a burner 31. The heat exchanger 32 is fed from a provided with a pump 33 return line 34 with water, which is discharged after heating by the heat exchanger from a provided with a temperature sensor 35 flow line 36. The line 36 leads to a collective heating system, not shown, from her branches off a line 37, which leads to a Heizwasser- / domestic water heat exchanger 38 leads, which leads via a heat exchanger return line 39 to a switching valve 40, which is connected via a line piece 41 to the pump 33 at the return side. The temperature sensor 35 is connected via a measuring line 42 with a control / control device 43 which is connected via a control line 44 with an electromagnet 45 of a gas valve 46 which is arranged in the course of a gas line 47 to the burner 31. With the control / regulating device 43, a motor 49 of the pump 33 is connected via a line 48. Another Stelleitung 50 leads to an electromagnet 51, which affects the switching valve 40 via a lever 52, which is connected on the side facing away from the line piece 41 via a line 53 with the aforementioned heating system. The Heizwasser- / domestic water heat exchanger 38 is penetrated by a bleed line 54 which is closed by a nozzle 55. The bleed line 54 is connected via the coil with a cold water network 58. In the interior of the secondary heat exchanger 56, a temperature sensor is provided, which is connected via a measuring line with the control and regulating device 43.

Bei der in der Fig. 2 dargestellten Ausführungsform ist ein Sollwertgeber 15 vorgesehen, der in Form eines variablen Widerstandes ausgeführt ist. Dabei ist der Mittenanschluß 21 des Soll-Wertgebers 15 mit je einem Eingang zweier Vergleicher 4, 6 über Verbindungsleitungen 22, 23 verbunden.In the embodiment shown in Fig. 2, a setpoint generator 15 is provided, which is designed in the form of a variable resistor. In this case, the center terminal 21 of the desired value transmitter 15 is connected to one input each of two comparators 4, 6 via connecting lines 22, 23.

Dabei ist der zweite Eingang des Vergleichers 4 über eine Anschlußleitung 8 mit einem nicht dargestellten, die Temperatur des Brauchwassers erfassenden Fühler und der zweite Eingang des Vergleichers 6 ist über eine Anschlußleitung 10 mit einem ebenfalls nicht dargestellten, die Temperatur in einem Kleinspeicher erfassenden Fühler verbunden.In this case, the second input of the comparator 4 via a connecting line 8 with a not shown, the temperature of the service water sensing sensor and the second input of the comparator 6 is connected via a connecting line 10 with a likewise not shown, the temperature detected in a small memory sensor.

Dabei ist die Verbindungsleitung 23 an eine weitere Verbindungsleitung 24 angeschlossen, über die eine Verbindung des Mittenanschlusses 21 des Soll-Wertgebers 15 mit den Eingängen zweier Schwellwertschalter 17 und 18 hergestellt ist. Der Schwellwertschalter 17 schaltet durch, wenn der eingestellte Soll-Wert mehr als 90% des maximal möglichen Soll-Wertes beträgt. Der Schwellwertschalter 18 schaltet durch wenn der mit dem Soll-Wertgeber 15 eingestellte Soll-Wert weniger als 10% des maximal möglichen Soll-Wertes beträgt.In this case, the connecting line 23 is connected to a further connecting line 24, via which a connection of the central terminal 21 of the desired value transmitter 15 with the inputs of two threshold value switches 17 and 18 is made. The threshold value switch 17 switches through when the setpoint value is more than 90% of the maximum possible setpoint value. Threshold switch 18 switches on when the setpoint value set with desired value generator 15 is less than 10% of the maximum possible setpoint value.

Die Ausgänge der Vergleicher 4 und 6 sind über Anschlußleitungen 5 und 7 mit einer Logik 13 verbunden. Mit dieser ist auch der Ausgang Q eines Flip-Flops 16 über eine Anschlußleitung 12 verbunden. Die Eingänge des Flip-Flops 16 sind über Anschlußleitungen 19 und 20 mit den Ausgängen der Schwellwertschalter 17, bzw. 18 verbunden.The outputs of the comparators 4 and 6 are connected via connecting lines 5 and 7 with a logic 13. With this also the output Q of a flip-flop 16 is connected via a connecting line 12. The inputs of the flip-flop 16 are connected via connecting lines 19 and 20 to the outputs of the threshold value switches 17, and 18, respectively.

Die Logik ist über eine Steuerleitung 14 mit nicht dargestellten Hilfsaggregaten für einen Brenner, wie Gasventil, Gebläse u.dgl. verbundenThe logic is via a control line 14 with auxiliary units, not shown, for a burner, such as gas valve, blower and the like. connected

Wird im Betrieb der Sollwertgeber 15 auf einen über 90% des maximal möglichen Wertes eingestellt, so gibt der Schwellwertschalter 17 ein Signal ab und setzt das Flip-Flop 16, wodurch die Logik 13 in den Betriebsmodus "Warmstart" gesetzt wird.If the setpoint generator 15 is set to over 90% of the maximum possible value during operation, then the threshold value switch 17 outputs a signal and sets the flip-flop 16, whereby the logic 13 is set to the "warm start" operating mode.

In diesem Betriebsmodus sorgt die Logik dafür, daß der Brenner bei fehlender Zapfung von Brauchwasser soweit in Betrieb gehalten, bzw. in Betrieb genommen wird, daß die Temperatur im Kleinspeicher auf einem dem eingestellten Soll-Wert entsprechenden Wert gehalten wird. Dabei muß es sich nicht unbedingt, um den für die Brauchwassertemperatur vorgegebenen Sollwert handeln, sondern es kann sich dabei um einen nach einem bestimmten Algorithmus von diesem abgeleiteten Wert handeln.In this operating mode, the logic ensures that the burner is kept in operation in the absence of tap of hot water or in operation, that the temperature is kept in the small memory at a value corresponding to the set target value. It does not necessarily have to be the setpoint specified for the service water temperature, but it may be a value derived therefrom according to a specific algorithm.

Im Betriebsmodus "Warmstart" erfolgt ein Soll-Istwert-Vergleich für die Temperatur im Kleinspeicher über den Vergleicher 6 und damit eine entsprechende Steuerung des Brenners.In the operating mode "warm start" there is a setpoint-actual value comparison for the temperature in the small memory via the comparator 6 and thus a corresponding control of the burner.

Wird dagegen der Soll-Wertgeber 15 auf einen unter 10% des maximal möglichen Soll-Wertes gestellt, so gibt der Schwellwertschalter 18 ein Signal an das Flip-Flop 16 ab und setzt dieses zurück, wodurch der Betriebsmodus "Warmstart" abgeschaltet wird.If, by contrast, setpoint value transmitter 15 is set to one of less than 10% of the maximum possible setpoint value, threshold value switch 18 sends a signal to flip-flop 16 and resets it, as a result of which the "warm start" operating mode is switched off.

In beiden Betriebsarten erfolgt üblicherweise ein Soll-Istwert-Vergleich der Temperatur des Brauchwassers mittels des Vergleichers 4.In both modes, there is usually a desired-actual value comparison of the temperature of the service water by means of the comparator 4.

Die Einschaltung des Betriebsmodus "Warmstart" erfolgt durch ein, wenn auch nur kurzzeitiges Überschreiten von 90% des maximal möglichen Soll-Wertes bei der Einstellung des Sollwertes.The activation of the operating mode "warm start" is effected by, albeit only briefly, exceeding 90% of the maximum possible setpoint value when setting the setpoint.

Dadurch kann mit dem Soll-Wertgeber 15 das Ein- und Ausschalten des Betriebsmodus "Warmstart", wie auch die Vorgabe der Sollwerte für die Temperatur des Brauchwassers und des Kleinspeichers erfolgen.This can be done with the reference value transmitter 15, the switching on and off of the operating mode "warm start", as well as the specification of the setpoints for the temperature of the service water and the small memory.

Claims (3)

  1. An instantaneous water heater comprising a built-in mini-storage and a control arrangement (43) for at least one heat source (30) supplying heat to the water heater (32) and the mini-storage, having at least one setpoint generator (15) characterised in that merely one setpoint generator (15) for setting the outlet temperature of the water heater is provided, and that such setpoint generator, via a comparator (4) connected with an outlet temperature sensor (8) and a comparator (6) connected with a temperature sensor arranged in the mini-storage, is connected with a logic (13) controlling a burner.
  2. An instantaneous water heater as claimed in Claim 1 characterised in that the setpoint generator (15) is further, via two shunt-connected triggers (17, 18), whose outputs are connected with a flip-flop (16), and via the output (12) of the latter likewise connected with the logic (13).
  3. An instantaneous water heater as claimed in Claim 2 characterised in that one of the two triggers (17, 18) supplies an output signal when the output temperature exceeds a high setpoint level, and the other trigger (18) supplies an output signal when the output temperature falls short of a low setpoint level.
EP01102103A 2000-02-02 2001-01-31 Instantaneous water heater Expired - Lifetime EP1130329B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT01102103T ATE321982T1 (en) 2000-02-02 2001-01-31 CONTINUOUS WATER HEATER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1542000 2000-02-02
AT0015400A AT412907B (en) 2000-02-02 2000-02-02 PASS WATER HEATER

Publications (3)

Publication Number Publication Date
EP1130329A2 EP1130329A2 (en) 2001-09-05
EP1130329A3 EP1130329A3 (en) 2003-01-02
EP1130329B1 true EP1130329B1 (en) 2006-03-29

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Family Applications (1)

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EP01102103A Expired - Lifetime EP1130329B1 (en) 2000-02-02 2001-01-31 Instantaneous water heater

Country Status (6)

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EP (1) EP1130329B1 (en)
AT (2) AT412907B (en)
DE (2) DE50109341D1 (en)
DK (1) DK1130329T3 (en)
ES (1) ES2261280T3 (en)
PT (1) PT1130329E (en)

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Publication number Publication date
DE50109341D1 (en) 2006-05-18
EP1130329A2 (en) 2001-09-05
AT412907B (en) 2005-08-25
PT1130329E (en) 2006-08-31
DK1130329T3 (en) 2006-08-07
ES2261280T3 (en) 2006-11-16
DE10104230A1 (en) 2001-09-06
EP1130329A3 (en) 2003-01-02
ATA1542000A (en) 2005-01-15
ATE321982T1 (en) 2006-04-15

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