GB2395293A - Control system for central heating apparatus - Google Patents
Control system for central heating apparatus Download PDFInfo
- Publication number
- GB2395293A GB2395293A GB0226600A GB0226600A GB2395293A GB 2395293 A GB2395293 A GB 2395293A GB 0226600 A GB0226600 A GB 0226600A GB 0226600 A GB0226600 A GB 0226600A GB 2395293 A GB2395293 A GB 2395293A
- Authority
- GB
- United Kingdom
- Prior art keywords
- heating system
- control system
- heating
- wiring centre
- wires
- 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
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 98
- 238000009434 installation Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000004044 response Effects 0.000 claims description 3
- 230000037361 pathway Effects 0.000 description 4
- 238000009429 electrical wiring Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
- F24D19/1018—Radiator valves
-
- 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
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
Abstract
A control system for central heating apparatus includes a primary wiring centre 4 to receive wires from a sensor 5 and a program controller 3. The primary wiring centre 4 is adapted to optionally receive wires from an auxiliary wiring centre 14 which, in turn, receives wires from a further sensor 15 and a further programmable controller 13. The control system may include a switch which can selectively adapt the system for use with single zone or multi zone heating apparatus. The primary wiring centre 4 may include terminal blocks mounted on a printed circuit board (see figure 2). A switch may be provided which enables the control system to be used with different types of heating apparatus.
Description
SYSTEM FOR THE INSTALLATION AND CONTROL OF A HEATING SYSTEM
The present invention relates to a system for the installation and control of a heating system and particularly but not exclusively to the installation and control of a heating system comprising two or more heating zones.
Conventional heating systems, particularly domestic heating systems, commonly comprise a boiler and hot water cylinder for producing domestic hot water and water for circulation to room radiators. Control of operation of the system conventionally is via a programmer operated in combination with a cylinder thermostat and a single room thermostat for controlling the operation Àe À e of valves which supply water to the cylinder and to radiators in a so called single À. zone heating arrangement.
À e. Such heating systems are controlled by communications between the À: various elements via electrical wiring links which conventionally radiate from a junction box or so called "wiring centre".
À.. During installation of a heating system such wiring centres may be constructed in situ by the installation engineer by manually making all of the connections required using lengths of electrical connecting wire, screw down type terminal blocks or terminal strips and then inserting these into a box.
The aforedescribed complete manual creation of the wiring centre is both time consuming for the installation engineer and prone to wiring mistakes because of the complex nature of the connections and the danger of misidentification of the various interconnections required. Furthermore subsequent fault identification by a service engineer may be difficult due to the individually tailored nature of the wiring centre.
An improvement to complete on site assembly of the wiring centre has been the provision to the installation engineer of a wiring centre comprising a box housing a plurality of screw down type electrical connectors between some of which short lengths of electrically conductive wire have been pre-assembled.
These pre-assembled links represent most of the common communicative links required by a number of common heating and control systems. Those links not required in a particular installation can be quickly removed leaving the installation engineer only with the task of making the correct connections radiating from the wiring centre to each of the component parts of the heating system. .. 8 À À Such an improved wiring centre has proved useful in conventional À..e À heating systems comprising a single zone.
I. * However, as expectations regarding the degree of control in various parts : of the domestic environment have increased, such expectations being accelerated by the increasing need to use energy more efficiently, the limitations À À of single zone heating systems have become apparent.
Accordingly the advantages of two or more heating zones in the domestic environment has become apparent and, related to this, recent changes in the United Kingdom building regulations state that an additional heating zone is now a requirement for new dwellings with a floor area in excess of 150 square meters. Such an additional heating zone splits the control of heating in a dwelling. Typically the split would provide separate heating control for bedroom or living areas, with the aim of maintaining a good degree of comfort to the inhabitants whilst increasing the efficiency of the system.
In order to provide an additional heating zone or zones to an existing domestic heating system it is not only potentially necessary to extend the
plumbing to additional room radiators but also to provide additional control means e.g., a room thermostat, programmer and in-line heating valve which communicate both amongst themselves and together with the primary heating system. Where such a dual or multi-zone heating system is a new installation the electrical wiring required in the wiring centre is complex. In the case of addition of an extra heating zone to an existing heating system, making of the required connections in the wiring centre becomes extremely difficult through greater complexity or indeed space limitations.
It is an object of the present invention to facilitate the installation and .. À control of a single or primary heating zone together with the options for addition of one or more additional heating zones to the primary zone in a À... *.,. manner that avoids the complex and time consuming wiring of the prior art.
:.: In accordance with one aspect of the present invention there is provided . a control system for a heating system, said heating system comprising a heat À. À generating appliance, a programmable controller and at least a first sensor or sensors responsive to the temperature or conditions affecting the temperature in a zone to be heated wherein the controller controls operation of the heat generating appliance in response at least to input(s) received from said first sensor or sensors, said control system comprising a primary wiring centre to receive ends of wires in communication with at least said first sensor or sensors and programmable controller and provide interconnection therebetween, said primary wiring centre being adapted optionally to receive wires in communication with an auxiliary wiring centre to which are connected wires from at least a second programmable controller and a second sensor responsive
to temperature or conditions affecting the temperature in a second zone to be heated. The primary wiring centre may comprise switch means selectively operable to adapt the control system for control of a single zone or multi-zone heating system. The switch means may be a removeable wire link or mechanical or electronic switch means.
Preferably the primary wiring centre comprises at least one terminal block for receiving the ends of wires from the said components of the heating system. Two or more terminal blocks may be connected together internally of the wiring centre to provide conducting paths therebetween. The internal Àe. À.. conducting paths may be provided on a printed circuit board.
À.. À À. The or each terminal block may be mounted directly on the printed À.e À. circuit board. At least one terminal block may be adapted to receive a plug-in connector attached to the end of a cable of wires from a component of the heating system.
À..e À.. In accordance with a further aspect of the present invention there is provided a system for the installation and control of a heating system wherein the component parts have their required electrical communications with each other directed through a wiring centre and wherein the wiring centre comprises a printed circuit board which provides the required conducting paths, said conducting paths being in electrical communication with at least one terminal block for electrical connection with the component parts of the system.
The printed circuit board may comprise conductive paths for an additional heating zone, these paths being connected to a terminal block for connection to an additional zone wiring centre.
One or more of the terminal blocks may be adapted to receive a plug-in connector attached to the ends of the wires from the components of the system. The terminal blocks may be mounted directly on the printed circuit board. The primary wiring centre may be provided with means for converting the wiring centre for use with different types of water heating systems. These means may comprise removable wires between connecting blocks or a mechanical or electronic switch.
The wiring centre may comprise a wiring centre box which may have a removable lid to facilitate connection to the component parts of the heating . : system. The wiring centre box may incorporate integral cable strain relief means À a. À for the electrical cables or wires passing to the connectors to prevent accidental À.. À disconnection and to reduce installation time.
: lo: Preferably the printed circuit board is housed within the wiring centre : box. À I. The wiring centre box may be provided with holes adjacent to the connectors or may be provided with areas which can be removed by the installation engineer as required to gain access to connector and to allow standard conduit entry.
Further aspects of the present invention will become apparent from the following description of one embodiment of the invention, given by way of
example only, in combination with the following drawings in which: Figure 1 shows a schematic diagram of a heating system in accordance with the present invention having a primary heating zone and an additional heating zone; and
Figure 2 shows internal details of a printed circuit board mounted within a wiring centre box in accordance with the present invention; and Figure 3 shows an external view of a wiring centre box in accordance with the present invention.
Shown in Figure 1 a schematic layout of a domestic hot water and central heating system in accordance with the present invention.
The system comprises a primary zone 10, a boiler 1 for heating water which is pumped via pipes and through valve 6a around a network of radiators 7 to provide space heating. In another circuit water passes through a hot water valve 6b through to an indirect hot water cylinder 2. The function of the system À. : À is controlled by a programmer 3, a cylinder thermostat 19 and a room À e.. . À thermostat 5 which communicate with the other components of the system via electrically conductive wires formed into cables indicated by the dotted lines 8.
:.: As can been seen the cables radiate from a junction box wiring centre 4 such : that all intercommunication between one component and another is directed À through the wiring centre.
In accordance with the invention the system also comprises, in addition to the primary heating zone 10, an additional heating zone 11 indicated inside the broken lines. This additional heating zone 11 itself comprises a heating valve 16 for controlling the flow of hot water from the primary heating circuit to an additional radiator or radiators indicated as 17. Control of the additional heating zone is via a room thermostat 15 and a programmer 13 which communicate between themselves and the other components of the additional heating zone via an additional heating zone wiring centre 14.
The control system of the additional heating zone 11 communicates with the control system of the primary heating zone 1 by a single cable 18 which
connects the additional heating zone wiring centre 14 with the primary zone wiring centre 4.
Shown in Figure 2 are internal details of a wiring centre 20 in accordance with the present invention.
The wiring centre 20 comprises a printed circuit board 21 which is fixed into a box the lower half 22 of which is shown.
The printed circuit board has printed on it the required electrically conductive network pathways for correct operation of the control system.
Mounted on the printed circuit board 21 are electrical connector blocks 23, 24 for connection to the component parts of the system. The terminal blocks may .. : be of the screw type 23 but are preferably of the push fit plug-in connector type À e lea. 24. The terminal blocks or plug-in connectors are further provided with :: labeling indicating which component cable should be connected to which terminal and how the individual wires of the cable should be or have been . Bee connected. The wiring centre may also comprise one or more switches which may be selectively operated to alter the configuration of the networked pathways to enable the wiring centres to be used with a variety of hot water control systems such as a "BIFLOW" configuration employing a "Y" shaped valve or a "TWINZONE" configuration employing two motorised valves. In this regard a "twin-zone" domestic water heating configuration is not to be confused with an additional zone space heating as herein referred to. This switch or switches may be mounted within the box for example directly onto the printed circuit board 21.
Additionally the wiring centre may comprise switch means (not shown) to convert the wiring centre from single to multi-zone operation. The switch means may be a manually operable switch or switching may, for example. be effected automatically by plugging into a plug in terminal 24 a connector from the additional wiring centre 24.
The lower part 22 of the wiring centre box has adjacent to each terminal connector 23, 24 an integral cable strain relief mechanism 25 which in this embodiment is positioned near the outer periphery of the box. Where the wiring centre box comprises a plastics material the integral cable strain relief 25 may be formed a part of the box moulding process.
À. : ÀFigure 3 shows details of one example of a wiring centre box in À.. - accordance with the present invention. Figure 3A shows the complete assembly of the box base 22 and lid 32. The base 22 or the lid 32 may be provided with ::holes or ports 33,34 adjacent to terminal connector blocks for entry / exit of : cables to the various system components. These holes or ports may be pre À. formed in the base or lid or may be created as desired by the installation engineer by the provision of removable portion of the base or lid in the form of so-called "breakouts".
The printed circuit board of the wiring centre of the present invention may also be provided with electrically conductive network pathways for installation of additional heating zone and a connector block for making the electrical connections to the control system of such an additional heating zone.
Furthermore the additional control centre 14 of the additional heating zone 11 shown in Figure 1 may be identical to the primary wiring centre 4 of the primary heating zone such that further additional heating zones may be added to the control system in the manner of a daisy chain. Alternatively the printed
circuit board of the primary wiring centre 4 of the present invention may be provided with the electrically conductive network pathways and associated connector blocks to enable a plurality of additional heating zone control systems to be connected in parallel to the primary heating zone wiring centre 4.
Accordingly the present invention facilitates the more rapid and simple installation of a heating control system and enables the various components of the system to be easily and more reliably connected in to the wiring centre by a single cable which, preferably has a plug-in connection and likewise permits the addition of an additional heating zone.
r e À À.. À À -.e me À À. À e..ee À - À. e. À. À..DTD:
Claims (9)
1. A control system for a heating system, said heating system comprising a heat generating appliance, a programmable controller and at least a first sensor or sensors responsive to the temperature or conditions affecting the temperature in a zone to be heated wherein the controller controls operation of the heat generating appliance in response at least to input(s) received from said first sensor or sensors, said control system comprising a primary wiring centre to receive wires in communication with at least said first sensor or sensors and programmable controller and provide interconnection therebetween, said primary wiring centre being adapted optionally to receive wires in communication with an auxiliary wiring centre to which are connected wires from at least a second programmable controller and a second sensor responsive to temperature or conditions affecting the temperature in a second zone to be heated and wherein the primary wiring centre comprises switch means selectively operable to adapt the control system for the control of a single zone or multi-zone heating system.
2. A control system for a heating system according to claim 1 wherein the switch means is a mechanical switch.
3. A control system for a heating system according either of claims 1 or 2 wherein the primary wiring centre comprises a printed circuit board to provide internal conducting paths between the ends of wires from the components of the heating system.
4. A control system for a heating system according to any of claims 1 to 3 wherein the primary wiring centre comprises terminal blocks at least one of which is adapted to receive the ends of wires from components of the heating system. À. : l,,l. ':' be:.
. ..
5. A control system for a heating system according to claim 4 wherein said at least one terminal block is mounted on the printed circuit board.
6. A control system for a heating system according to either of claims 4 or 5 wherein said at least one terminal block is adapted to receive a plug-in connector attached to the end of a cable or wires from a component or components of the heating system.
7. A control system for a heating system in accordance with any of the preceding claims wherein the wiring centre includes switch means for converting the wiring centre for use with different types of water heating systems.
8. A control system for a heating system in accordance with any of the preceding claims wherein the wiring centre comprises a box incorporating integral cable strain relief means.
9. A system according to claim 1 and substantially as herein before described with reference to the accompanying drawings.
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^.,, ..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0226600A GB2395293B (en) | 2002-11-15 | 2002-11-15 | System for the installation and control of a heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0226600A GB2395293B (en) | 2002-11-15 | 2002-11-15 | System for the installation and control of a heating system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0226600D0 GB0226600D0 (en) | 2002-12-24 |
| GB2395293A true GB2395293A (en) | 2004-05-19 |
| GB2395293B GB2395293B (en) | 2004-11-10 |
Family
ID=9947834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0226600A Expired - Fee Related GB2395293B (en) | 2002-11-15 | 2002-11-15 | System for the installation and control of a heating system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2395293B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2885481A1 (en) * | 2005-05-04 | 2006-11-10 | Telematech Sarl | Fluid circulation installation e.g. boiler plant, regulating and controlling device for e.g. building, has box to regulate cables connected directly to daughter casings comprising other cables coupled directly to installation |
| GB2461857A (en) * | 2008-07-11 | 2010-01-20 | Pegler Ltd | Thermostatic radiator valve |
| CN101387420B (en) * | 2007-09-11 | 2010-05-19 | 梁佩生 | Heating apparatus for tall buildings |
| WO2011017841A1 (en) * | 2009-08-13 | 2011-02-17 | Huo Weimin | Multi-storey central hot-water heating system controlled on each storey |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2200479A (en) * | 1987-01-29 | 1988-08-03 | Clifford Frederick Nicholls | Central heating control centre |
| GB2265455A (en) * | 1992-03-28 | 1993-09-29 | C & K Heating | Prefabricated heating control unit |
| US6449533B1 (en) * | 2000-05-25 | 2002-09-10 | Emerson Electric Co. | Thermostat and method for controlling an HVAC system with remote temperature sensor |
-
2002
- 2002-11-15 GB GB0226600A patent/GB2395293B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2200479A (en) * | 1987-01-29 | 1988-08-03 | Clifford Frederick Nicholls | Central heating control centre |
| GB2265455A (en) * | 1992-03-28 | 1993-09-29 | C & K Heating | Prefabricated heating control unit |
| US6449533B1 (en) * | 2000-05-25 | 2002-09-10 | Emerson Electric Co. | Thermostat and method for controlling an HVAC system with remote temperature sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2885481A1 (en) * | 2005-05-04 | 2006-11-10 | Telematech Sarl | Fluid circulation installation e.g. boiler plant, regulating and controlling device for e.g. building, has box to regulate cables connected directly to daughter casings comprising other cables coupled directly to installation |
| CN101387420B (en) * | 2007-09-11 | 2010-05-19 | 梁佩生 | Heating apparatus for tall buildings |
| GB2461857A (en) * | 2008-07-11 | 2010-01-20 | Pegler Ltd | Thermostatic radiator valve |
| GB2461857B (en) * | 2008-07-11 | 2012-12-12 | Pegler Ltd | Thermostatic radiator valves and control thereof |
| WO2011017841A1 (en) * | 2009-08-13 | 2011-02-17 | Huo Weimin | Multi-storey central hot-water heating system controlled on each storey |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2395293B (en) | 2004-11-10 |
| GB0226600D0 (en) | 2002-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20101115 |