CA2125014C - Direct digital control thermostat - Google Patents

Direct digital control thermostat

Info

Publication number
CA2125014C
CA2125014C CA002125014A CA2125014A CA2125014C CA 2125014 C CA2125014 C CA 2125014C CA 002125014 A CA002125014 A CA 002125014A CA 2125014 A CA2125014 A CA 2125014A CA 2125014 C CA2125014 C CA 2125014C
Authority
CA
Canada
Prior art keywords
thermostat
temperature
pneumatic
instructions
pressure
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 - Fee Related
Application number
CA002125014A
Other languages
English (en)
French (fr)
Other versions
CA2125014A1 (en
Inventor
William H. Gorski
Wayne S. Lauer
Amy L. Ikenn
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.)
Siemens Industry Inc
Original Assignee
Landis and Staefa 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 Landis and Staefa Inc filed Critical Landis and Staefa Inc
Publication of CA2125014A1 publication Critical patent/CA2125014A1/en
Application granted granted Critical
Publication of CA2125014C publication Critical patent/CA2125014C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Control Of Temperature (AREA)
  • Air Conditioning Control Device (AREA)
  • Thermally Actuated Switches (AREA)
  • Feedback Control In General (AREA)
CA002125014A 1993-06-16 1994-06-02 Direct digital control thermostat Expired - Fee Related CA2125014C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7860593A 1993-06-16 1993-06-16
US078,605 1993-06-16

Publications (2)

Publication Number Publication Date
CA2125014A1 CA2125014A1 (en) 1994-12-17
CA2125014C true CA2125014C (en) 1998-11-03

Family

ID=22145110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002125014A Expired - Fee Related CA2125014C (en) 1993-06-16 1994-06-02 Direct digital control thermostat

Country Status (5)

Country Link
JP (1) JPH07146715A (ko)
KR (1) KR100343335B1 (ko)
AU (1) AU676728B2 (ko)
CA (1) CA2125014C (ko)
TW (1) TW316955B (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7432477B2 (en) 2005-04-19 2008-10-07 Robert Teti Set-back control for both HVAC and water heater via a single programmable thermostat
US9104211B2 (en) 2010-11-19 2015-08-11 Google Inc. Temperature controller with model-based time to target calculation and display
US9046898B2 (en) 2011-02-24 2015-06-02 Google Inc. Power-preserving communications architecture with long-polling persistent cloud channel for wireless network-connected thermostat
US9448567B2 (en) 2010-11-19 2016-09-20 Google Inc. Power management in single circuit HVAC systems and in multiple circuit HVAC systems
US9092039B2 (en) 2010-11-19 2015-07-28 Google Inc. HVAC controller with user-friendly installation features with wire insertion detection
US8944338B2 (en) 2011-02-24 2015-02-03 Google Inc. Thermostat with self-configuring connections to facilitate do-it-yourself installation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442972A (en) * 1981-09-14 1984-04-17 Texas Instruments Incorporated Electrically controlled programmable digital thermostat and method for regulating the operation of multistage heating and cooling systems
US4500034A (en) * 1982-09-30 1985-02-19 Tempmaster Corporation Electronic control arrangement for system powered HVAC terminal units
US4897798A (en) * 1986-12-08 1990-01-30 American Telephone And Telegraph Company Adaptive environment control system
US4799176A (en) * 1986-12-29 1989-01-17 Harper-Wyman Company Electronic digital thermostat
US4942921A (en) * 1988-01-29 1990-07-24 Staefa Control Systems, Inc. Forced air ventilation system
US5114070A (en) * 1990-11-06 1992-05-19 American Standard Inc. Pneumatic direct digital controller

Also Published As

Publication number Publication date
KR950001449A (ko) 1995-01-03
AU676728B2 (en) 1997-03-20
TW316955B (ko) 1997-10-01
AU6464294A (en) 1994-12-22
CA2125014A1 (en) 1994-12-17
JPH07146715A (ja) 1995-06-06
KR100343335B1 (ko) 2002-10-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed