EP1020688A2 - Komfortreguliereinrichtung - Google Patents

Komfortreguliereinrichtung Download PDF

Info

Publication number
EP1020688A2
EP1020688A2 EP00300236A EP00300236A EP1020688A2 EP 1020688 A2 EP1020688 A2 EP 1020688A2 EP 00300236 A EP00300236 A EP 00300236A EP 00300236 A EP00300236 A EP 00300236A EP 1020688 A2 EP1020688 A2 EP 1020688A2
Authority
EP
European Patent Office
Prior art keywords
valve
base unit
actuator
circuit
time
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.)
Granted
Application number
EP00300236A
Other languages
English (en)
French (fr)
Other versions
EP1020688B1 (de
EP1020688A3 (de
Inventor
Alastair D. Mackie
Derek W. Lightfoot
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.)
Garrett Motion SARL
Original Assignee
Honeywell Control Systems Ltd
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 Honeywell Control Systems Ltd filed Critical Honeywell Control Systems Ltd
Publication of EP1020688A2 publication Critical patent/EP1020688A2/de
Publication of EP1020688A3 publication Critical patent/EP1020688A3/de
Application granted granted Critical
Publication of EP1020688B1 publication Critical patent/EP1020688B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • Radio-frequency links for example between a room thermostat and a timer.
  • this feature is of limited benefit because it cannot be used for power transfer and is only of use in reducing the length of wiring used and does not reduce the mains wiring complexity and number of terminations .
  • a system embodying the present invention allows the use of low voltage links, typically between 8V and 25volts, whether a.c. or d.c., thereby ensuring that the system can be installed more safely (whether by an experienced electrician or not) than can conventional systems. Additionally, the system provides safer operation, not only by virtue of the extensive use of low voltages reducing the likelihood of malfunctioning of components caused e.g. by over- heating, but also by virtue of there being reduced consequential damage to property and people from malfunctioning of the system or components, howsoever caused.
  • FIG. 9 shows the functional blocks that constitute the base unit 21.
  • Power supply 70 produces safety-isolated low voltage supplies from the mains supply to power the other blocks within the base unit 21 and also to power other devices external to base unit 21 within the system 40 described later.
  • the microcontroller circuit 71 comprises a microcontroller, containing a stored control program which controls and responds to the other blocks within 21 to implement the overall functions of base unit 21 and microcontroller support functions such as oscillator and reset circuitry.
  • Relay and drive circuit 72 switches mains to boiler 7 and pump 8.
  • Microcontroller 71 switches the relay drive 72 at a duty cycle in accordance with heat demands received via communication bus 26.
  • the base unit will "retry" the valve, by performing a valve synchronisation. If two retries are unsuccessful, then the base unit will signal the failure to the room unit via the appropriate Valve Status message.
  • the "on” duration is compared with the current cycle time. If the current cycle time is less than the "on-time” then a CH demand signal is generated. If the time is greater than the "on time” then the demand signal is cleared. These demand signals are used to make decisions on valve movements as described earlier. If the demand changes by more than 40%, or if either of the demand change to or from 0%, then the cycle is effectively aborted and a new cycle started. This is to ensure quick reaction to large changes in demand.
  • FIG 8 shows the circuit for base unit 41 (which is part of communications interface 74) and one remote node, e.g. room unit 22.
  • Base unit 41 provides the power for all remote nodes and also the voltage for signalling for all nodes.
  • a resistance of 1k ohms (BR1) connects the bus to the base unit DC power supply (Vsupply).
  • BT4 When power is being supplied, a transistor (BT4) shorts out the resistance, presenting a low impedance to the bus, and charges up RC1 in the remote node.
  • the connecting of various components of systems 20 or 40 into base units 21, 41 uses a standard six-pin modular plug (cf North American telephone plug) on the component leads, whereby only certain of the pins are used for a given component.
  • a standard six-pin modular plug cf North American telephone plug
  • base units 21, 41 effecting appropriate monitoring of those lines, which correspond to certain pins, for each socket, incorrect connections are readily determined.
  • One possible arrangement of pin connections is shown in Table 10.
  • the system also ensures detection of disengaged valve/sensor connectors, being another aspect of the detection of missing/ misconnected components at installation.
  • the system also detects connectors which are plugged back into the wrong socket after being disengaged.
  • Power distribution in the system involves incorporation of the power provision to the bus devices in a specific portion of the bit period of the communications.

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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Fats And Perfumes (AREA)
  • Saccharide Compounds (AREA)
  • Peptides Or Proteins (AREA)
EP00300236A 1999-01-14 2000-01-14 Komfortreguliereinrichtung Expired - Lifetime EP1020688B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9900740 1999-01-14
GB9900740 1999-01-14

Publications (3)

Publication Number Publication Date
EP1020688A2 true EP1020688A2 (de) 2000-07-19
EP1020688A3 EP1020688A3 (de) 2001-05-30
EP1020688B1 EP1020688B1 (de) 2005-03-16

Family

ID=10845922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00300236A Expired - Lifetime EP1020688B1 (de) 1999-01-14 2000-01-14 Komfortreguliereinrichtung

Country Status (4)

Country Link
EP (1) EP1020688B1 (de)
AT (1) ATE291202T1 (de)
DE (1) DE60018620D1 (de)
GB (1) GB2345766B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439655B (en) * 2006-06-29 2009-01-07 David Ronald Boyd Control system
EP2434187A1 (de) 2010-09-22 2012-03-28 HAGER CONTROLS (Société par Actions Simplifiée) Steuerverfahren eines Thermostatventils
US9939384B2 (en) 2013-09-30 2018-04-10 Honeywell International Inc. Low-powered system for driving a fuel control mechanism

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5532467A (en) * 1978-08-30 1980-03-07 Toshiba Corp Reversible controller
US4694390A (en) * 1985-06-28 1987-09-15 Electric Power Research Institute, Inc. Microprocessor-based control and diagnostic system for motor operated valves
DE3743309A1 (de) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Verfahren und einrichtung zur erkennung und lockerung verklemmter stellelemente
US5033012A (en) * 1989-02-22 1991-07-16 Wohld Peter R Motor-operated valve evaluation unit
US5042264A (en) * 1990-09-21 1991-08-27 Carrier Corporation Method for detecting and correcting reversing valve failures in heat pump systems having a variable speed compressor
US5329956A (en) * 1993-05-28 1994-07-19 Combustion Engineering, Inc. Pneumatic operated valve stroke timing
FR2760061B1 (fr) * 1997-02-21 1999-04-30 Ksb Sa Robinet a actionneur dont l'aptitude au fonctionnement peut-etre surveillee

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439655B (en) * 2006-06-29 2009-01-07 David Ronald Boyd Control system
EP2434187A1 (de) 2010-09-22 2012-03-28 HAGER CONTROLS (Société par Actions Simplifiée) Steuerverfahren eines Thermostatventils
US9939384B2 (en) 2013-09-30 2018-04-10 Honeywell International Inc. Low-powered system for driving a fuel control mechanism
US10036710B2 (en) 2013-09-30 2018-07-31 Honeywell International Inc. Low-powered system for driving a fuel control mechanism
US10309906B2 (en) 2013-09-30 2019-06-04 Ademco Inc. Low-powered system for driving a fuel control mechanism

Also Published As

Publication number Publication date
ATE291202T1 (de) 2005-04-15
GB2345766B (en) 2001-03-21
EP1020688B1 (de) 2005-03-16
EP1020688A3 (de) 2001-05-30
DE60018620D1 (de) 2005-04-21
GB2345766A (en) 2000-07-19
GB0000799D0 (en) 2000-03-08

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