IE911594A1 - Heating Control Apparatus - Google Patents
Heating Control ApparatusInfo
- Publication number
- IE911594A1 IE911594A1 IE159491A IE159491A IE911594A1 IE 911594 A1 IE911594 A1 IE 911594A1 IE 159491 A IE159491 A IE 159491A IE 159491 A IE159491 A IE 159491A IE 911594 A1 IE911594 A1 IE 911594A1
- Authority
- IE
- Ireland
- Prior art keywords
- hot water
- heat
- boiler
- heat source
- circulation
- Prior art date
Links
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
- F24D12/00—Other central heating systems
- F24D12/02—Other central heating systems having more than one heat source
-
- 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
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
- G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/04—Gas or oil fired boiler
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/10—Fire place
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (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)
Abstract
Heating control apparatus comprises a control unit 10 in electric circuit with one or more operating controls 12 of two heat sources, namely a boiler or a back boiler, which produce a heated medium. if only one heat source is used, valves isolate the other. Ambient temperature thermostats 16 govern heat emission from radiators. Pumps 18, 20 circulate the heated medium from the sources to the radiators. Hot water is supplied using cylinder thermostat 26; if only hot water is required the radiators are isolated. Frost detecting thermostat 14 is provided on pipes of a tank in an unheated room and acts to operate the boiler if freezing is imminent.
Description
This invention relates to a heating control apparatus for a central heating system to automatically govern, by central control, the temperature of the environment in a multi-area building where heat is derived from one or more sources, such as an oil-, gas-, or solid- fuelled boiler and/or an open or closed solid fuelled back or wrap-round boiler.
Accordingly, the present invention is heating control apparatus comprising a control unit in electric circuit with one or more operating controls of at least one heat source producing heated medium, with ambient temperature controls governing heat emission from one or more heat emitting devices integrated into a medium circulation system with the heat source(s), and with circulation means to circulate the heated medium from the or each source to the or each heat emitting device.
Desirably, the control unit is manually programmable to operate thereafter automatically from signals received from the or each temperature control. A manual override control is preferably provided to operate the circulation means and the or each heat source.
An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:IE 911594
Fig. 1 is a block circuit diagram for a heating control apparatus according to the present invention, and
Fig. 2 is a circuit diagram of the apparatus.
Referring to the drawings, a heating control apparatus for a central heating system and a domestic hot water system comprises a control unit 10 in electric circuit with (1) on/off oporating controls 12 of a heat source, 10 namely an oil-, gas-, or solid- fuelled boiler (not shown) producing heated medium, (2) ambient temperature controls, namely thermostats 16 (only one shown in drawings) governing heat emission from one or more heat emitting devices such as radiators (not shown) which are integrated into a medium circulation system with the heat source(s), and (3) circulation means, namely pumps 18 and 20 to circulate, through the system, heated medium from the sources, ie, the boiler or a back boiler respectively to the or each heat emitting device, ie. one or more radiators. A frost thermostat 14 is also in the electrical circuit and is provided In or near to a cold water pipes or a cold water tank (not shown) positioned, for example in an attic or other normally unheated location, such as a laundry room.
The control unit 10 is manually programmable through a time clock switch 22 for time period setting, to operate thereafter automatically from signals received from the or each temperature control 16 during the set time period. A manual override button control 24 is provided to operate the circulation pumps 18, 20 and the controls 12 for the boiler. The control 24 is preset timewise to any selected time period, for example one hour, whereby the circuit is energised for that time period. The heat sources, ie. boiler and back boiler, also are integrated into a domestic hot water system and a temperature control 26 for a hot water cylinder (not Bhown) and a circulating pump 28 for circulating the hot water in the domestic system are provided.
Motorised valve 30 is provided to isolate the boiler if it is not required for heating so that heat is not lost due to the boiler acting as a radiator, and motorised valve 32 is provided to isolate the radiators from the cylinder of the hot water system from the remaining circulation system if hot water only is required.
The circuit diagram as shown in Fig. 2 has twentyfive contact points and three relays, ie. a master relay and one relay each for the frost thermostat 14 circuit and the hot water only circuit. The relayb are arranged as shown, namely two outer four pole relays A (master) and C (hot water) each with sixteen contacts, and a central two pole relay B (frost) with eight contacts, each contact point is connected to a particular contact in the relays K, B and/or C as shown in groups comprising:
Group 1.
Contact points 8, 12 and 25 connected together to contacts Λ1, Λ5 and Λ9, BI and B3, C7 and C15, These connections are live at all times.
Group 2.
Contact points 2, 4, 14, 18, 20, 22 and 24 connected to 240 volt coils 34, 36, and 38. These connections are neutral.
Group 3.
Contact point 1 connected to contact Λ10;
Contact point 3 connected to contacts A2 and C3;
Contact point 5 connected to contact A11;
J5 Contact point 6 connected to contact Λ4;
Contact point 7 connected to contact Λ12;
Contact point 9 connected to contact B2 and coil 34;
Contact point 10 connected to contact A8; Contact point 11 connected to coil 36 « t 20 Contact point 1 5 connected to contact C4; and Contact points 16 i, 17 connected to contacts C1 C1 4; Contact point 21 connected to contact C8; and Contact point 23 connected to contact Cl 6 •
These connections are control connections.
Group 4.
Contact point 13 connected to contact C2; and
Contact point 19 connected to contacts Cl 3 and C5. These connections are output connections.
Group 5.
Contact Λ7 connected to contact B4 and coil 38; and Contact A3 connected to contacts C9, C11, and C6; and Contact A6 connected to contact C1.
Contacts C2 and C10 are connected respectively to contacts A and B which are thermostatically controlled.
The time clock switch 22 is in circuit with contact points 8, 9 and 10 through a hot water switch 40, the override button control 24 is in circuit with contact point 10 and the frost thermostat 14 is in circuit with contact points 11, 12. Contact points 1, 2 and 3 connect with the motorised valve 30. Pump 20 is connected to contact points 4 and 5 and the cylinder thermostat 26 Is connected to contact points 6, 7 and 8.
Pump 18 is connected to contact points 13 and 14. Room thermostats 16 are connected to contact points 15 and 16, The hot water pump 28 is connected to contact points 19 and 20 with the boiler 12 being connected to contact points 17 and 18. Contact points 21, 22 and 23 are connected to motorised valve 32. Contact points 24 and 25 are for connection to the mains electricity supply.
When the electric circuit is de-energised the contacts A9, A11, A13, A15, C9, GI1, C13 and C1 5 of the relays are made with contacts Λ10, A12, Λ14, A16, C10,
Cl 2, C14, and C16 respectively, and when the circuit is energised contacts Λ1, A3, A5, Λ7, B1, B3, C1, C3, C5 and C7 of the relays are made with contacts Λ2, Λ4, Λ6, Λ0, B2, B4, C2, C4, C6 and CO respectively.
For use, the apparatus is connected to an electric power source as shown at 42 (Fig. 2). The control unit is set for a required time period (to energise the coils
34 and 30 during that time period), and the thermostats are set to a required temperature in each area of a multi-area building, such as a domestic dwelling, and for the hot water cylinder. The frost thermostat can bo set, normally at one or two degrees Centigrade below zero, and this alone energises the coil 36,
For hot water only, with the clock switched on, power flows to ignite the fuel of the oil- or gasboiler and to the circulating pump 18 and to the motorised valve 32 to switch it to 'ON* position to shut off the radiators. When the temperature peaks to the setting on the thermostat 26 for the hot water system, the boiler and pump 10 automatically switch off until the temperature falls below the peak setting on the thermostat 25 causing the them to switch on. This cycle of events continues for the duration of the time period set on the time clock. The back boiler may be in operation however the pump 20 is not energised and consequently the hot water produced has only a gravity fed circulation in the system.
For hot water and heat, when the clock switches on, power flows to the boiler to ignite same and to the circulating pump 18 (but not the pump 20 for the circulation of hot water from the back boiler). The thermostats 16 control the operation of the boiler during the selected time period since heat is radiated from the radiators and heat to the cylinder will not rise in the same manner as for hot water only operation. When the thermostats 16 reach the selected temperature, the boiler is closed down but not the pump 18, the boiler being restarted when the temperature on the thermostats 16 falls. If the cylinder thermostat peaks at the set temperature, pump 20 is stopped but not the boiler which as stated above is controlled by the thermostats 16. If the boiler is switched off and not in circuit, the pump 20 is switched on and used to distribute heated water through the radiators by being brought into operation by the thermostat 26 independant of the control unit being not in operation, or operated by temperature fall or by override control being pressed. The frost thermostat 14 overrides the time clock, the override control or the cylinder thermostat 26 to switch on the boiler, start pump 18 and motorised valve 32.
The heating systems preferably use two pipes to tho radiators and pump 18 and two pipes to the hot water cylinder.
Variations and modifications can be made without 05 departing from the scope of the Invention abovedescribed.
Claims (9)
1. Heating control apparatus comprising a control unit in electric circuit with one or more operating controls of at least one heat source producing heated medium, with ambient temperature controls governing heat 05 emission from one or more heat emitting devices integrated into a medium circulation system with the heat source(s), and with circulation means to circulate the heated medium from tho or each source to the or each heat emitting device,
2. Apparatus as claimed in Claim 1, wherein the enntrol unit Is manually programmable to operate thereafter automatically from signals received from the or each temperature control, (
3. Apparatus as claimed in Claim 1 or 2, wherein a manual override control is provided to operate the circulation means and the or each heat source.
4. Apparatus as claimed in Claim 1, 2 or 3, wherein the circulation means are pumps to circulate, through the system, heated medium from the or oach heat source formed of a boiler or a back boiler respectively to the 05 or each heat emitting device in the form of one or more ίο radiators respectively.
5. Apparatus as claimed in any one of the preceding Claims, wherein a frost thermostat is also in the electrical circuit and is provided in or near to a cold water pipes or a cold water tank positioned in an 05 unheated location.
6. Apparatus as claimed in any one of the preceding Claims, wherein the or each heat source is also integrated into a domestic hot water system with a temperature control for a hot water cylinder and a 05 circulating pump for circulating the hot water in the domestic system being provided.
7. , Apparatus as claimed in any one of the preceding Claims, wherein two heat sources are provided and a valve is provided to isolate one unused heat source to prevent its circulation chamber acting, in use, as a 05 radiator.
8. , Apparatus as claimed in Claim 6 or 7, wherein a second valve is provided to isolate the or each radiator from the cylinder of the hot water system from the remaining circulation system if hot water only is 05 required.
9. Heating control apparatus substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9010486A GB2245383A (en) | 1990-05-10 | 1990-05-10 | Heating control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IE911594A1 true IE911594A1 (en) | 1991-11-20 |
Family
ID=10675757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE159491A IE911594A1 (en) | 1990-05-10 | 1991-05-10 | Heating Control Apparatus |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2245383A (en) |
| IE (1) | IE911594A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2366861B (en) * | 2000-09-19 | 2005-03-30 | Christopher John Brisc Haworth | Control system for multiple heat source central heating using a neutraliser |
| ITMI20060552A1 (en) | 2006-03-24 | 2007-09-25 | Del Col Ugo Enrico | METHOD AND SYSTEM FOR CHECKING A HEATING SYSTEM |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2373016A1 (en) * | 1976-12-06 | 1978-06-30 | Messier Fa | HEATING SYSTEM, ASSOCIATING TWO SOURCES OF HEAT OF DIFFERENT NATURES WITH TWO SEPARATE NETWORKS OF DIFFUSERS |
| US4365742A (en) * | 1980-04-14 | 1982-12-28 | Cogar George R | Heating system |
| US4330083A (en) * | 1980-04-24 | 1982-05-18 | Dante Di Fiore | Home heating system |
| US4382543A (en) * | 1981-06-19 | 1983-05-10 | Morrison Thomas R | Acoustic control for zone heat control system |
| KR900005722B1 (en) * | 1985-11-18 | 1990-08-06 | 마쯔시다덴기산교 가부시기가이샤 | Defrosting control apparatus for a temperature control system |
| US4863100A (en) * | 1988-04-04 | 1989-09-05 | Erhardt James A | Electronic flow controller for hydronic heating systems |
| JPH0359362A (en) * | 1989-07-28 | 1991-03-14 | Toshiba Corp | Air conditioner |
-
1990
- 1990-05-10 GB GB9010486A patent/GB2245383A/en not_active Withdrawn
-
1991
- 1991-05-10 IE IE159491A patent/IE911594A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB9010486D0 (en) | 1990-07-04 |
| GB2245383A (en) | 1992-01-02 |
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