EP1076212A3 - Control and method for electric water heater operation - Google Patents

Control and method for electric water heater operation Download PDF

Info

Publication number
EP1076212A3
EP1076212A3 EP00306820A EP00306820A EP1076212A3 EP 1076212 A3 EP1076212 A3 EP 1076212A3 EP 00306820 A EP00306820 A EP 00306820A EP 00306820 A EP00306820 A EP 00306820A EP 1076212 A3 EP1076212 A3 EP 1076212A3
Authority
EP
European Patent Office
Prior art keywords
heating element
control
water
set point
point temperature
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.)
Withdrawn
Application number
EP00306820A
Other languages
German (de)
French (fr)
Other versions
EP1076212A2 (en
Inventor
Jason S. Anderson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Therm O Disc Inc
Original Assignee
Therm O Disc Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Therm O Disc Inc filed Critical Therm O Disc Inc
Publication of EP1076212A2 publication Critical patent/EP1076212A2/en
Publication of EP1076212A3 publication Critical patent/EP1076212A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/128—Preventing overheating
    • F24H15/132—Preventing the operation of water heaters with low water levels, e.g. dry-firing
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • 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
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F24H15/175—Supplying heated water with desired temperature or desired range of temperature where the difference between the measured temperature and a set temperature is kept under a predetermined value
    • 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
    • F24H15/223—Temperature of the water in the water storage tank
    • F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
    • 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
    • F24H15/269—Time, e.g. hour or date
    • 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
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • 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
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • 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
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/486—Control of fluid heaters characterised by the type of controllers using timers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

A control and method for preventing dry start of an electric water heater provides activation of a bottom heating element for a short time and then senses the temperature to detect the absence or presence of water around the bottom heating element. In the absence of water, the control prevents further activation of the heating element. If water is present, the bottom heating element is activated to heat the water to a set point temperature. An additional upper heating element is activatable only after its temperature falls a predetermined amount below the set point temperature. The control may also include a programmable time having the ability to vary the turn off set point temperature in a predetermined manner during different times of a given day and/or week as well as to provide a convenient way to maintain a reduced turn off set point temperature for an extended period of time.
EP00306820A 1999-08-13 2000-08-10 Control and method for electric water heater operation Withdrawn EP1076212A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37386399A 1999-08-13 1999-08-13
US373863 1999-08-13

Publications (2)

Publication Number Publication Date
EP1076212A2 EP1076212A2 (en) 2001-02-14
EP1076212A3 true EP1076212A3 (en) 2002-12-18

Family

ID=23474204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00306820A Withdrawn EP1076212A3 (en) 1999-08-13 2000-08-10 Control and method for electric water heater operation

Country Status (5)

Country Link
EP (1) EP1076212A3 (en)
CN (1) CN1284635A (en)
AU (1) AU4880800A (en)
CA (1) CA2314190A1 (en)
NO (1) NO20004058L (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6465764B1 (en) * 2000-08-30 2002-10-15 State Industries, Inc. Water heater and control system therefor
CN1937943A (en) 2004-03-31 2007-03-28 皇家飞利浦电子股份有限公司 Method for operating a boiler of a device such as a coffee maker
ATE460866T1 (en) * 2004-06-23 2010-04-15 Koninkl Philips Electronics Nv HEATING PROCESS OF A HOT WATER HEATER OF A COFFEE MACHINE
US7360328B2 (en) * 2004-07-14 2008-04-22 Kai Tung Augustine Fung Steam generating device and iron using the steam generating device
AU2006287152A1 (en) * 2005-09-02 2007-03-08 Andre Meinhard Fourie A heating device
US7380522B2 (en) * 2005-10-05 2008-06-03 American Water Heater Company Energy saving water heater
US7209651B1 (en) * 2005-12-07 2007-04-24 Aos Holding Company Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same
CN103431724B (en) * 2013-08-28 2014-12-31 余伟文 Kungfu tea tray with atomizer
CN108332425A (en) * 2018-01-05 2018-07-27 陈炳华 A kind of electric water heater heating system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889444A (en) * 1957-10-22 1959-06-02 Theodor H Stiebel Electrically heated instantaneous hot water generator and storage tank
US5442157A (en) * 1992-11-06 1995-08-15 Water Heater Innovations, Inc. Electronic temperature controller for water heaters
US5449884A (en) * 1992-07-09 1995-09-12 Samsung Electronics Co., Ltd. Overheating prevention apparatus of a boiling clothes washing machine and method thereof
EP0672374A1 (en) * 1994-03-15 1995-09-20 Zip Heaters (Aust.) Pty Limited Protection and control of continuous boiling water units
CA2158120A1 (en) * 1995-09-12 1997-03-13 John Tracey Demaline Hot water controller
US5808277A (en) * 1995-06-15 1998-09-15 Dosani; Nazir Programmable thermostat to reduce bacterial proliferation to prevent legionellosis
US6137955A (en) * 1998-06-04 2000-10-24 American Water Heater Company Electric water heater with improved heating element
US6308009B1 (en) * 1998-06-04 2001-10-23 American Water Heater Company Electric water heater with electronic control
US20020125241A1 (en) * 1998-06-04 2002-09-12 Allen Scott Electric water heater with pulsed electronic control and detection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889444A (en) * 1957-10-22 1959-06-02 Theodor H Stiebel Electrically heated instantaneous hot water generator and storage tank
US5449884A (en) * 1992-07-09 1995-09-12 Samsung Electronics Co., Ltd. Overheating prevention apparatus of a boiling clothes washing machine and method thereof
US5442157A (en) * 1992-11-06 1995-08-15 Water Heater Innovations, Inc. Electronic temperature controller for water heaters
EP0672374A1 (en) * 1994-03-15 1995-09-20 Zip Heaters (Aust.) Pty Limited Protection and control of continuous boiling water units
US5808277A (en) * 1995-06-15 1998-09-15 Dosani; Nazir Programmable thermostat to reduce bacterial proliferation to prevent legionellosis
CA2158120A1 (en) * 1995-09-12 1997-03-13 John Tracey Demaline Hot water controller
US6137955A (en) * 1998-06-04 2000-10-24 American Water Heater Company Electric water heater with improved heating element
US6308009B1 (en) * 1998-06-04 2001-10-23 American Water Heater Company Electric water heater with electronic control
US20020125241A1 (en) * 1998-06-04 2002-09-12 Allen Scott Electric water heater with pulsed electronic control and detection

Also Published As

Publication number Publication date
EP1076212A2 (en) 2001-02-14
NO20004058L (en) 2001-02-14
AU4880800A (en) 2001-02-15
NO20004058D0 (en) 2000-08-11
CA2314190A1 (en) 2001-02-13
CN1284635A (en) 2001-02-21

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