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EP1124097B1 - Heating and air conditioning system - Google Patents

Heating and air conditioning system Download PDF

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Publication number
EP1124097B1
EP1124097B1 EP01400348A EP01400348A EP1124097B1 EP 1124097 B1 EP1124097 B1 EP 1124097B1 EP 01400348 A EP01400348 A EP 01400348A EP 01400348 A EP01400348 A EP 01400348A EP 1124097 B1 EP1124097 B1 EP 1124097B1
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EP
European Patent Office
Prior art keywords
air
heating
network
conditioning
water
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 - Lifetime
Application number
EP01400348A
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German (de)
French (fr)
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EP1124097A1 (en
Inventor
Michel Denis
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Johnson Controls Enterprises SAS
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Johnson Controls MC International SA
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Publication date
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Publication of EP1124097A1 publication Critical patent/EP1124097A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/027—Condenser control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit

Definitions

  • the present invention relates to a heating and air conditioning system of a room, and an installation using such a system.
  • the invention relates to a system comprising a device for central heating network cooling, said network being used outside heating period, i.e. mainly in summer, for cooling condensers of air conditioners connected to said network.
  • At least one air conditioner is provided in a room to be cooled outside heating season, the water condenser of said air conditioner being connected to the central heating network.
  • the thermal load of the condenser is transmitted to the network of central heating, which must be kept at an acceptable temperature for a water cooling device.
  • Patent application FR-A- 2 776 053 proposes a water cooler allowing the heat transmitted to the central heating network to be removed and resulting from the condensation of one or more air conditioners.
  • said central heating network operates in winter to supply radiators and therefore at a starting temperature of the boiler central heating which can rise to 90 ° C for example, while in summer heating off, the flow temperature will be maintained by the cooler of water at for example 25 ° C.
  • the object of the invention is to overcome these various drawbacks of the prior art, by installing a reliable air conditioning and possibly heating system connected to the central heating network.
  • the temperature of the water leaving the device cooling in air conditioning mode is kept close to 25 ° C, to allow the proper functioning of air conditioning and heating devices.
  • the means for discharging the cooling device comprise a refrigerant discharge valve from the evaporator to the condenser, from so as to bypass the compressor.
  • the discharge means for each air conditioner of the air conditioning device include a refrigerant discharge valve from the condenser to the evaporator, so as to bypass the regulator.
  • the prohibition means comprise a three-way valve channels, in heating mode isolating the network cooling device, in air conditioning mode connecting the cooling device to the network and isolating the network boiler.
  • the system comprises a discharge valve at the level from which are discharged the water introduced under pressure into the network of heating, to avoid overpressure in the network.
  • the system comprises first means for breaking the thermal conduction between the air conditioning system and the heating and second means of breaking thermal conduction between the cooling device and the heating network.
  • the system comprises in heating mode a device frost protection of the evaporator of the cooling device, comprising electric heaters, or hot water injection means, controlled by as a function of a risk of freezing temperature close to 2 ° C.
  • a pH maintaining regulator intended for avoid acidification of the heating network caused by the introduction of condensation in the network.
  • the system further comprises means for electrically connecting the fan, compressor motor, means of prohibiting compressor operation in heating mode, possibly with means control, to an energy source such as the local electrical sector.
  • the system comprises a cooling element of ventilated self-cooling battery type, integrated into the cooling device and arranged in series with respect to the condenser, a tilting means allowing in air conditioning mode the battery supply when the temperature outside the room is lower than the water temperature of the network close to 25 ° C.
  • the system includes a three-way valve before arrival to the evaporator provided with a tilting means, allowing the circulation of fluid to the evaporator in normal situation, below the temperature normal of this fluid of the order of 45 ° C, and allowing the bypass of the evaporator for higher temperatures
  • the invention relates to an air conditioning installation and heating comprising at least one cooling and air conditioning as described above.
  • the method may include a step of replacing at least one device for external cooling and / or at least one air conditioning device which do not include discharge means as described above, by respectively at least one external cooling element and / or at minus an air conditioning device which include discharge means.
  • Figure 1 is shown an assembly A comprising an installation of traditional central heating.
  • This central heating installation includes a means of producing water hot, for example a boiler, a device for circulating hot water, integrated or not integrated into the production means, for example a pump 2, a network pipes 3 and heat user elements 4 such as for example radiator, convector, etc.
  • the assembly A in FIG. 1 is equipped with a device for air conditioning and heating 5, comprising at least one air conditioning and heating 5a can generate or use heat according to its operating mode.
  • Each air conditioning and heating appliance 5a includes a radiator 4 and an air conditioner 5b separate or not from the radiator 4.
  • Figure 1a shows them separately to understand the diagram of operation of the air conditioner 5b.
  • the other figures represent them in one block 5a so as not to load the figures.
  • the boiler 1, the pump 2, the network 3 and the devices 5a keep, by example in winter, their functions.
  • the heating network 3 comprises a water cooling device 6 of the central heating network 3.
  • the heating installation thus works traditionally.
  • the boiler 1 In the boiler room, the boiler 1 is in service, as well as the pump 2.
  • the valve 7 is part of hydraulic means for prohibiting operation cooling device 6 hereinafter designated cooler.
  • Means of thermal conduction break 10, such as a short section pipes made of heat conductive material, are provided to insulate the cooler 6.
  • a means injection 11 of hot water from the network 3 is planned.
  • This injection means 11 like for example a solenoid valve, is controlled according to a temperature representative of the risk of freezing of the evaporator 12.
  • the injection takes place intermittently until a correct temperature is obtained to freeze the cooler 6, such as + 2 ° C.
  • the protection against freezing of the evaporator can be obtained by other means such as for example electric markers.
  • a discharge means 13 from the refrigerant from the evaporator 12 to the condenser 14 is provided.
  • This discharge means 13 makes it possible to bypass, or "bypass" the compressor 16.
  • This discharge means 13, such as for example a controlled solenoid valve by a pressure increase detected at the low pressure switch pressure 15, allows a transition all the more rapid as the evaporator 12 has a reduced volume compared to the condenser 14.
  • This discharge means 13 has a preponderant role in the event of failure of the valve 7 which would allow total or partial opening of track 9 in mode heating and which would imply an undesired arrival of hot water under pressure at evaporator 12.
  • Boiler 1 is stopped, while pump 2 remains in operation.
  • the air conditioning and heating device 5 is in air conditioning mode, the air conditioners 5a heat the mains water 3.
  • the three-way valve 7, controlled for example by a contact placed on the summer position, is open on a track 9, allowing the circulation of water from network 3 in the cooler 6, and closed by a channel 8 thus isolating from the network 3 the boiler 1.
  • the three-way valve 7 is fitted with a safety device preventing the opening on track 9, if at least one boiler burner 1 is in operation.
  • the water heated by the passage of the air conditioning and heating device 5 circulates in the network 3 to the cooler 6 which keeps it at the temperature desired for the proper functioning of the device 5.
  • the refrigeration cycle of the cooler 6 includes compression or primary using a compressor 16, condensation at the condenser 14 ventilated according to high pressure 19, by fan 17, a drop in pressure using a pressure reducer 18 and evaporation at the primary level of the exchanger formed by the evaporator 12. Note that in the case of use a centrifugal fan, the cooler 6 can be connected to the outside by air ducts and be inside room A.
  • the temperature of the water leaving the secondary of the evaporator 12 must be maintained at a level allowing the proper functioning of the air conditioning and heating 5 while not causing cooling or reheating at the level of the heat user elements 4 which have remained in place network 3.
  • the air conditioners 5a of the air conditioning and heating device 5 can be equipped with means allowing the introduction of their condensation water in the heating network 3, a device allowing the treatment of these water is incorporated into the cooler 6. Since the liquids are not compressible, condensed water introduced under pressure into the heating network 3 are rejected at a discharge valve 19 integrated at the level of the secondary water circulation circuit of the chiller 6.
  • This discharge valve 19 whose control is for example pressostatic avoids overpressures in network 3.
  • a regulator 20 of pH maintenance can be incorporated into the cooler 6.
  • an alarm signals a possible failure of the pH maintaining regulator 20 or the need to recharge as a basic element when the level is reached.
  • the device 6 includes control means 21 and electrical connection means 22 of the condenser fan 17 14, of a compressor motor 16, and here connection means 21 to an energy source S.
  • This source S is here the electrical sector of room A.
  • the device 6 further comprises in its control means, a safety arrangement 23.
  • This arrangement 23 prohibits the operation of the water cooling 6 using means causing the imperative shutdown of the compressor 16, if the three-way valve 7 is open on track 8 and / or if at at least one burner of the boiler 1 is in operation.
  • FIG. 3 shows a second embodiment concerning the connection of the cooler 6 to the central heating network 3.
  • the device used allows the operation of a fully dedicated pump 24 adapted to the operation in air conditioning mode and allows automatic switching of a two lanes 25 summer / winter.
  • the two-way valve 25, provided with a tilting means summer / winter can be manual or automatic, such as for example thermostatic as a function of the temperature of the water circulating in the network 3, is closed, which causes the pump 24 to be taken out of service.
  • This isolation of the cooler 6 from the network 3 is carried out for a water temperature at a value for example greater than 35 ° C, which is indicative of the operation of boiler 1, the network being maintained at 25 ° C in air conditioning mode.
  • the means of production 1 is in service, as well as pump 2 allowing normal operation of the heating in winter.
  • means for breaking thermal conduction 10 are provided, a means injection 11 overcomes a possible risk of freezing of the evaporator 12, while a discharge means 13 makes it possible to mitigate the consequences of a possible hot water supply to the evaporator 12.
  • Operation in air conditioning mode is then strictly identical to that described in Figure 2 and incorporates in particular if necessary holding means pressure 19 ′ and means 20 for maintaining pH.
  • An arrangement of safety 23 prohibits the opening of the valve 25, and causes the imperative stop of the compressor 16 regardless of the level 3 water temperature, if at least a burner of the boiler 1 is in operation.
  • FIG. 4 represents an embodiment cooperating with the installation of the Figure 2 with a ventilated cooling element integrated into the mechanical cooling and arranged in series with respect thereto.
  • the three-way valve 7 is open on a channel 8 and allows an operation identical to that described in FIG. 2.
  • the three-way valve 7 In air conditioning mode, the three-way valve 7 is open on a track 9 and allows the circulation of fluid from network 3 to a three-way valve 26.
  • This three-way valve 26 provided with a tilting means as by thermostatic example depending on the outside temperature, allows the supply or “bypass” of an air-cooling coil 32.
  • the water from the network 3 being maintained at for example 25 ° C. in air conditioning mode, the valve three ways 26 is open on a way 27 allowing the supply of a cooling coil 32 for outside temperatures below par example 25 ° C.
  • the mains water 3 is completely cooled or partially at the cooling coil 32, ventilated by the fan 17, depending on the water outlet temperature thereof.
  • the compressor 16 equipped with a control device which can be for example thermostatic as a function of the water outlet temperature of the battery 32, between a service or not.
  • a control device which can be for example thermostatic as a function of the water outlet temperature of the battery 32, between a service or not.
  • the fan 17 is controlled according to the high pressure to be maintained at level of the condenser 14, and no longer as a function of the outlet temperature of water from the battery 32, the latter having only a pre-cooling role.
  • valve three lanes 26 is open on one lane 28 and closed on one lane 27 allowing the bypass of the cooling coil 32 which is left in operation at these outdoor temperature levels would cause the fluid to heat up.
  • maintaining the temperature of the fluid in network 3 is provided exclusively by the compressor 16 which controls the fan 17 in as a function of the condensing temperature.
  • operation in air conditioning mode is completely identical to that presented in the description in Figure 2.
  • This valve three-way 29 is provided with a tilting means such as for example a upstream thermostatic bubble allowing to open on track 31, if the temperature of the fluid becomes for example greater than 45 ° C.
  • the three-way valve 29 is open on a track 30 allowing the passage of the fluid in the evaporator 12.
  • the device represented by the three-way valve 29 has the same purpose that the relief valve 13 and can be operated jointly or independently from it.
  • the three-way valve 29 can in particular be used in the same way for level of Figures 2 and 3.
  • FIG. 5 represents an embodiment cooperating with the installation of FIG. 3 with a ventilated cooling element integrated into the mechanical cooling device and arranged in series with respect thereto. In heating mode, the operation is identical to that described in Figure 3.
  • the cooling system 6 can be replaced by an exchanger 49 connected to the heating network by a 3-way valve 7 in the same mode as on the Figure 2.
  • a 3-way mixing valve 50 makes it possible to maintain the heating network at 25 ° C by distributing its input flow over the outputs 51 and 52.
  • a discharge valve 19 and a PH regulator 20 are planned.
  • FIG. 9 shows another embodiment relating to the connection of the exchanger 49 to the heating network.
  • the device used allows the same so that in Figure 3, operate a fully dedicated pump 24 and suitable for operation in air conditioning mode and to obtain tilting automatic 2-way valve 25 summer / winter.
  • the output of the radiator 4 is directed to a channel 33, while a channel 34 of a three-way valve 35 is closed.
  • a position of the valve 35 allows the outlet of the element 4 to return to the network 3, via line 36, the air conditioner 5b not being in service.
  • Means 37 for breaking thermal conduction make it possible to isolate a condenser 38 in the air conditioner 5b, of the hot water network 3.
  • This condenser 38 comprises a primary 39 and a secondary 40 connected to the network 3.
  • the thermal conduction breaking means 37 can here be very simple such as a short section of piping made of non-conductive material heat, because in this operating mode, water does not circulate in the condenser 38.
  • the heating system has traditionally operated. In the boiler room, the boiler 1 is in service as well as pump 2.
  • the three-way valve 7 is open on track 8 and closed on track 9 insulating thus from the hot water network the cooler 6 of the network water 3, which is not not in operation.
  • boiler 1 In operation in air conditioning mode, boiler 1 is stopped.
  • the air conditioner 5b is in use.
  • An evaporator 41 in the air conditioner 5b cools the ambient air in room A, conveyed by a fan 42.
  • the refrigeration cycle is traditional with an increase in pressure at primary using a compressor 43, primary condensing 39 of the exchanger formed by the condenser 38, a drop in pressure using a regulator such as a capillary 44 and again evaporation in the evaporator 41.
  • the water circulating in the secondary 40 of the condenser 38 is conveyed by the network 3 central heating.
  • This water, coming as in heating mode, from the outlet of the radiator 4 is directed by the three-way valve 35 closed on track 33 and open on track 34, to condenser 38.
  • the water leaving the air conditioner 5b borrows the pipe 36 towards the outside cooler 6, through the three-way valve 7, the way 8 of which is closed and track 9 is open, pump 2 being in service.
  • the cooling of the ambient air on passing over the evaporator 41 causes the condensation and the water thus collected by a collector 45 must be evacuated. This can be done in a conventional gravity fashion, by flow in small flexible or rigid pipes easy to install on the plinth. These waters of condensation can be evacuated by their introduction under pressure into the heating network 3 via a pump 46 and a non-return valve 47.
  • a "by-pass" system can be implemented to avoid the consequences due to the arrival of pressurized hot water to the condensers 38 of the air conditioners 5a.
  • a discharge valve 48 of the fluid from the condenser 38 to the evaporator 41 is provided for each air conditioner 5b, bypassing the regulator 44.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Air Conditioning Control Device (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

Winter/summer operation of a heating and air conditioning system is controlled by a three way valve (7) which if it failed would send unexpected hot water to a cooling system (6) or a combined heating and air conditioning system (5) causing high excess pressures. The risk is reduced by a compressor bypass valve (13) on the cooling system and a pressure reducer by pass valve on the combined heating and air conditioning system. An Independent claim is also included for the method for setting up the heating and air conditioning system.

Description

La présente invention concerne un système de chauffage et de climatisation d'un local, et une installation utilisant un tel système.The present invention relates to a heating and air conditioning system of a room, and an installation using such a system.

Plus précisément, l'invention concerne un système comprenant un dispositif de refroidissement de réseau de chauffage central, ledit réseau étant utilisé hors période de chauffe, c'est à dire principalement en été, pour le refroidissement de condenseurs de climatiseurs raccordés sur ledit réseau.More specifically, the invention relates to a system comprising a device for central heating network cooling, said network being used outside heating period, i.e. mainly in summer, for cooling condensers of air conditioners connected to said network.

Ces systèmes sont notamment destinés au chauffage et à la climatisation de locaux d'habitation à titre résidentiel, public, ou professionnel.These systems are especially intended for heating and air conditioning of residential premises for residential, public or professional use.

A cet effet, il est prévu au moins un climatiseur dans un local à refroidir hors saison de chauffe, le condenseur à eau dudit climatiseur étant raccordé sur le réseau du chauffage central.For this purpose, at least one air conditioner is provided in a room to be cooled outside heating season, the water condenser of said air conditioner being connected to the central heating network.

De cette façon, la charge thermique du condenseur est transmise au réseau de chauffage central, qui doit être maintenu à une température acceptable pour un dispositif de refroidissement d'eau.In this way, the thermal load of the condenser is transmitted to the network of central heating, which must be kept at an acceptable temperature for a water cooling device.

La demande de brevet FR-A- 2 776 053, propose un refroidisseur d'eau permettant d'évacuer la chaleur transmise au réseau du chauffage central et issue de la condensation d'un ou plusieurs climatiseurs.Patent application FR-A- 2 776 053 proposes a water cooler allowing the heat transmitted to the central heating network to be removed and resulting from the condensation of one or more air conditioners.

De tels moyens de refroidissement ne donnent toutefois pas entière satisfaction dans le cadre du refroidissement d'un réseau de chauffage central.However, such cooling means are not entirely satisfactory as part of the cooling of a central heating network.

En effet, les conditions de fonctionnement d'un réseau de chauffage central telles que décrites dans cette demande FR-A- 2 776 053, posent des problèmes de compatibilité avec les produits du marché.Indeed, the operating conditions of a central heating network as described in this application FR-A- 2 776 053, pose problems compatibility with market products.

En effet, ledit réseau de chauffage central fonctionne en hiver pour alimenter des radiateurs et donc à une température de départ de la chaudière du chauffage central pouvant monter à par exemple 90°C, alors qu'en été chauffage à l'arrêt, la température de départ sera maintenue par le refroidisseur d'eau à par exemple 25°C.Indeed, said central heating network operates in winter to supply radiators and therefore at a starting temperature of the boiler central heating which can rise to 90 ° C for example, while in summer heating off, the flow temperature will be maintained by the cooler of water at for example 25 ° C.

Or, les dispositifs de refroidissement habituel ne sont pas bien adaptés lorsque de façon non souhaitée, de l'eau chaude par exemple à 80°, s'introduit dans le dispositif de refroidissement, car cela génère des pressions côté réfrigérant de l'ordre de 36 bars.However, the usual cooling devices are not well suited when unwanted, hot water for example at 80 °, gets into the cooling device, as this generates pressures on the refrigerant side of around 36 bars.

Un tel dispositif de refroidissement comprend typiquement :

  • un premier circuit de circulation de frigorigène primaire, et un deuxième circuit de circulation d'eau secondaire destiné à être relié au réseau de chauffage central ;
  • un compresseur au primaire ;
  • un condenseur au primaire et un ventilateur de condenseur ;
  • un évaporateur à eau formant échangeur, d'échange entre primaire et secondaire.
Such a cooling device typically comprises:
  • a first primary refrigerant circulation circuit, and a second secondary water circulation circuit intended to be connected to the central heating network;
  • a primary compressor;
  • a primary condenser and a condenser fan;
  • a water evaporator forming an exchanger, exchange between primary and secondary.

De même, dans des dispositifs de climatisation tels que décrit dans la demande FR-A- 2 776 053, une arrivée d'eau chaude non souhaitée au niveau d'un condenseur formant échangeur du climatiseur, peut endommager ce dispositif de climatisation. Et l'on peut rencontrer des problèmes liés au gel du dispositif de refroidissement hors période de chauffe, ce dispositif de refroidissement étant placé à l'extérieur du local, ainsi que des problèmes d'altération de canalisations dûs à un excès d'acidité.Similarly, in air conditioning devices as described in the application FR-A- 2 776 053, an unwanted hot water supply at a condenser forming the air conditioner exchanger, can damage this device air conditioning. And we can encounter problems related to the freezing of the device cooling outside the heating period, this cooling device being placed outside the premises, as well as pipes due to excess acidity.

L'invention a pour objet de pallier ces différents inconvénients de l'art antérieur, en posant un système fiable de climatisation et éventuellement de chauffage raccordé au réseau de chauffage central.The object of the invention is to overcome these various drawbacks of the prior art, by installing a reliable air conditioning and possibly heating system connected to the central heating network.

A cet effet, l'invention à pour objet, selon un premier aspect un système de chauffage et de climatisation d'un local, le système comportant :

  • à l'intérieur du local à refroidir hors période de chauffe, un dispositif de climatisation et de chauffage comportant au moins un climatiseur, chaque climatiseur comprenant notamment un condenseur à eau formant échangeur, un détendeur, un évaporateur et un ventilateur d'évaporateur, un compresseur ;
  • un dispositif de refroidissement de l'eau circulant dans les condenseurs du dispositif de climatisation, comprenant notamment un évaporateur formant échangeur, un compresseur, un condenseur et un ventilateur de condenseur, un détendeur ;
  • un réseau de chauffage central fonctionnant essentiellement en période de chauffe pour alimenter des éléments de chauffage du dispositif de climatisation et de chauffage à l'aide d'une chaudière, le réseau étant utilisé pour la circulation d'eau entre les condenseurs du dispositif de climatisation et le dispositif de refroidissement en période de refroidissement ;
  • des moyens de raccordement du dispositif de refroidissement et du dispositif de climatisation au réseau de chauffage central, comprenant des moyens d'interdiction en situation normale en mode chauffage de l'arrivée d'eau chaude à l'évaporateur du dispositif de refroidissement et au condenseur du dispositif de climatisation ;
  • au moins l'un dudit dispositif de refroidissement et dudit dispositif de climatisation comprenant des moyens de décharge, se mettant en service en mode chauffage lorsque l'échangeur dudit dispositif, respectivement l'évaporateur pour le dispositif de refroidissement et au moins un condenseur pour le dispositif de climatisation et de chauffage, reçoit du réseau de façon non souhaitée une eau chaude générant une forte pression, notamment en cas de défaillance des moyens d'interdiction d'arrivée de l'eau du réseau à l'échangeur dudit dispositif.
To this end, the subject of the invention is, according to a first aspect, a space heating and air conditioning system, the system comprising:
  • inside the room to be cooled outside the heating period, an air conditioning and heating device comprising at least one air conditioner, each air conditioner comprising in particular a water condenser forming an exchanger, an expansion valve, an evaporator and an evaporator fan, a compressor;
  • a device for cooling the water circulating in the condensers of the air conditioning device, comprising in particular an evaporator forming an exchanger, a compressor, a condenser and a condenser fan, a pressure reducer;
  • a central heating network operating essentially during the heating period to supply heating elements of the air conditioning and heating device using a boiler, the network being used for the circulation of water between the condensers of the air conditioning device and the cooling device during the cooling period;
  • means for connecting the cooling device and the air conditioning device to the central heating network, comprising means for prohibiting in normal situation in heating mode the supply of hot water to the evaporator of the cooling device and to the condenser the air conditioning system;
  • at least one of said cooling device and said air conditioning device comprising discharge means, operating in heating mode when the exchanger of said device, respectively the evaporator for the cooling device and at least one condenser for the air conditioning and heating device, receives from the network undesirably hot water generating a high pressure, in particular in the event of failure of the means preventing the arrival of water from the network to the exchanger of said device.

Selon une réalisation, la température de l'eau en sortie du dispositif de refroidissement en mode climatisation est maintenue voisine de 25°C, pour permettre le bon fonctionnement des dispositifs de climatisation et de chauffage.According to one embodiment, the temperature of the water leaving the device cooling in air conditioning mode is kept close to 25 ° C, to allow the proper functioning of air conditioning and heating devices.

Les moyens de décharge du dispositif de refroidissement comprennent une vanne de décharge du fluide frigorigène de l'évaporateur vers le condenseur, de manière à contourner le compresseur. The means for discharging the cooling device comprise a refrigerant discharge valve from the evaporator to the condenser, from so as to bypass the compressor.

Les moyens de décharge pour chaque climatiseur du dispositif de climatisation, comprennent une vanne de décharge du fluide frigorigène du condenseur vers l'évaporateur, de manière à contourner le détendeur.The discharge means for each air conditioner of the air conditioning device, include a refrigerant discharge valve from the condenser to the evaporator, so as to bypass the regulator.

Selon une réalisation, les moyens d'interdiction comprennent une vanne trois voies, en mode chauffage isolant le dispositif de refroidissement du réseau, en mode climatisation reliant le dispositif de refroidissement au réseau et isolant la chaudière du réseau.According to one embodiment, the prohibition means comprise a three-way valve channels, in heating mode isolating the network cooling device, in air conditioning mode connecting the cooling device to the network and isolating the network boiler.

Selon une réalisation, le système comprend une vanne de décharge au niveau de laquelle sont rejetées les eaux introduites sous pression dans le réseau de chauffage, afin d'éviter une surpression dans le réseau.According to one embodiment, the system comprises a discharge valve at the level from which are discharged the water introduced under pressure into the network of heating, to avoid overpressure in the network.

Selon une réalisation, le système comprend des premiers moyens de rupture de conduction thermique entre le dispositif de climatisation et le réseau de chauffage et des seconds moyens de rupture de conduction thermique entre le dispositif de refroidissement et le réseau de chauffage.According to one embodiment, the system comprises first means for breaking the thermal conduction between the air conditioning system and the heating and second means of breaking thermal conduction between the cooling device and the heating network.

Selon une réalisation, le système comprend en mode chauffage un dispositif hors gel de l'évaporateur du dispositif de refroidissement, comportant des traceurs électriques, ou des moyens d'injection d'eau chaude, commandés en fonction d'une température de risque de gel voisine de 2°C.According to one embodiment, the system comprises in heating mode a device frost protection of the evaporator of the cooling device, comprising electric heaters, or hot water injection means, controlled by as a function of a risk of freezing temperature close to 2 ° C.

Selon une réalisation, comprend un régulateur de maintien de pH destiné à éviter l'acidification du réseau de chauffage provoquée par l'introduction des eaux de condensation dans le réseau.According to one embodiment, comprises a pH maintaining regulator intended for avoid acidification of the heating network caused by the introduction of condensation in the network.

Le système comprend en outre des moyens de branchement électrique du ventilateur, d'un moteur de compresseur, de moyens d'interdiction de fonctionnement du compresseur en mode chauffage, éventuellement de moyens de commande, à une source d'énergie telle que le secteur électrique du local.The system further comprises means for electrically connecting the fan, compressor motor, means of prohibiting compressor operation in heating mode, possibly with means control, to an energy source such as the local electrical sector.

Selon une réalisation, le système comprend une vanne deux voies munie d'un moyen de basculement automatique été/hiver déclenchée en fonction de la température de l'eau du réseau, permettant l'exploitation d'une pompe dédiée au seul mode climatisation :

  • la vanne deux voies étant fermée en mode chauffage, le dispositif de refroidissement étant alors isolé du réseau, à partir d'une température de l'eau révélatrice du fonctionnement de la chaudière, par exemple 35°C lorsque le réseau est maintenu à 25°C en mode climatisation ;
  • la vanne deux voies étant ouverte en mode climatisation, entraínant la mise en service de la pompe, le dispositif de refroidissement étant relié au réseau, un agencement de sécurité interdisant l'ouverture de la vanne et provoquant l'arrêt impératif du compresseur quelle que soit la température d'eau du réseau 3 si la chaudière est en fonctionnement.
According to one embodiment, the system comprises a two-way valve provided with an automatic summer / winter switching means triggered as a function of the temperature of the network water, allowing the operation of a pump dedicated to air conditioning only:
  • the two-way valve being closed in heating mode, the cooling device then being isolated from the network, from a water temperature indicative of the operation of the boiler, for example 35 ° C. when the network is maintained at 25 ° C in air conditioning mode;
  • the two-way valve being open in air conditioning mode, causing the pump to be put into service, the cooling device being connected to the network, a safety arrangement preventing the valve from opening and causing the compressor to stop absolutely whatever the network water temperature 3 if the boiler is in operation.

Selon une réalisation, le système comporte un élément de refroidissement de type batterie autoréfrigérante ventilée, intégré au dispositif de refroidissement et disposé en série par rapport au condenseur, un moyen de basculement permettant en mode climatisation l'alimentation de la batterie lorsque la température à l'extérieur du local est inférieure à la température de l'eau du réseau voisine de 25°C.According to one embodiment, the system comprises a cooling element of ventilated self-cooling battery type, integrated into the cooling device and arranged in series with respect to the condenser, a tilting means allowing in air conditioning mode the battery supply when the temperature outside the room is lower than the water temperature of the network close to 25 ° C.

Selon une réalisation, le système comporte une vanne trois voies avant l'arrivée à l'évaporateur munie d'un moyen de basculement, autorisant la circulation de fluide vers l'évaporateur en situation normale, en dessous de la température normale de ce fluide de l'ordre de 45°C, et permettant le contournement de l'évaporateur pour des températures supérieuresAccording to one embodiment, the system includes a three-way valve before arrival to the evaporator provided with a tilting means, allowing the circulation of fluid to the evaporator in normal situation, below the temperature normal of this fluid of the order of 45 ° C, and allowing the bypass of the evaporator for higher temperatures

Selon un second aspect, l'invention a pour objet une installation de climatisation et de chauffage comprenant au moins un système de refroidissement et de climatisation tel que décrit précédemment.According to a second aspect, the invention relates to an air conditioning installation and heating comprising at least one cooling and air conditioning as described above.

Selon un troisième aspect, l'invention a pour objet un procédé d'installation d'un système de chauffage et climatisation tel que décrit précédemment, comportant au moins les étapes prévoyant de:

  • installer à l'intérieur du local le dispositif de climatisation ;
  • installer à l'extérieur du local le dispositif de refroidissement de l'eau du dispositif de climatisation intérieur ;
  • installer à l'intérieur et/ou l'extérieur du local des moyens hydrauliques tels que vanne trois voies aptes à permettre la circulation dans le dispositif de refroidissement ou à l'interdire dans un mode climatisation ;
  • raccorder le dispositif de refroidissement et dispositif de climatisation par un réseau de circulation d'eau de chauffage central, éventuellement existant dans le local, apte à alimenter par ailleurs au moins un élément de chauffage, de sorte que ce réseau permette, en mode climatisation lorsque la chaudière est à l'arrêt, la circulation d'eau entre les condenseurs du dispositif de climatisation et le dispositif de refroidissement, et en mode chauffage un fonctionnement d'alimentation de l'élément de chauffage.
According to a third aspect, the invention relates to a method for installing a heating and air conditioning system as described above, comprising at least the steps providing for:
  • install the air conditioning system inside the room;
  • install outside the room the water cooling device of the indoor air conditioning system;
  • install inside and / or outside the room hydraulic means such as a three-way valve capable of allowing circulation in the cooling device or prohibiting it in an air conditioning mode;
  • connect the cooling device and air conditioning device by a central heating water circulation network, possibly existing in the room, capable of supplying at least one heating element, so that this network allows, in air conditioning mode when the boiler is at a standstill, the circulation of water between the condensers of the air conditioning device and the cooling device, and in heating mode an operation for supplying the heating element.

L'on installe à l'intérieur d'un local à refroidir plusieurs dispositifs de climatisation, et à l'extérieur du local au moins un dispositif de refroidissement commun à au moins deux dispositifs de climatisation intérieurs.One installs inside a room to cool several devices of air conditioning, and outside the room at least one cooling device common to at least two indoor air conditioning systems.

Pour une installation dans un local préalablement pourvu d'un chauffage central, le procédé peut comporter une étape de substitution d'au moins un dispositif de de refroidissement extérieur et/ou d'au moins un dispositif de climatisation qui ne comprennent pas de moyens de décharge tels que décrits précédemment, par respectivement au moins un élément de refroidissement extérieur et/ou au moins un dispositif de climatisation qui comprennent des moyens de décharge.For installation in a room previously provided with central heating, the method may include a step of replacing at least one device for external cooling and / or at least one air conditioning device which do not include discharge means as described above, by respectively at least one external cooling element and / or at minus an air conditioning device which include discharge means.

D'autres objets et avantages de l'invention apparaítront au cours de la description faite en référence aux figures annexées dans lesquelles :

  • la figure 1 est une vue schématique de principe d'une installation de chauffage central traditionnelle ;
  • la figure 1a est une vue schématique illustrant le principe de fonctionnement d'une installation comprenant, raccordé au réseau de chauffage central, un dispositif de climatisation et de chauffage selon l'invention comprenant des radiateurs et des climatiseurs, séparés dans la variante représentée.
  • la figure 2 est une vue schématique, selon un mode de réalisation d'un système de climatisation et chauffage selon l'invention coopérant avec l'installation de la figure 1 et mettant en situation un dispositif de refroidissement d'eau ou refroidisseur, muni d'un ensemble de dispositifs permettant son exploitation fiable sur une installation de chauffage central ;
  • la figure 3 représente un autre mode de réalisation de l'invention, une installation avec une pompe et un dispositif d'exploitation automatique dédié au fonctionnement du refroidisseur ;
  • la figure 4 représente un autre mode de réalisation de l'invention, l'installation de la figure 2 comprenant en outre un élément de refroidissement ventilé intégré au dispositif de refroidissement mécanique et disposé en série par rapport à celui-ci ;
  • la figure 5 représente selon un autre mode de réalisation de l'invention, l'installation de la figure 3 avec un élément de refroidissement ventilé intégré aux dispositifs de refroidissement mécanique et disposé en série par rapport à celui-ci ;
  • la figure 6 représente selon un autre mode de réalisation de l'invention, l'instalation de la figure 2 avec un élément de refroidissement ventilé intégré au dispositif de refroidissement mécanique et disposé en parallèle par rapport à celui-ci ;
  • la figure 7 représente selon un autre mode de réalisation de l'invention, l'installation de la figure 3 avec un élément de refroidissement ventilé intégré au dispositif de refroidissement mécanique et disposé en parallèle par rapport à celui-ci.
  • Les figures 8 et 9 représentent deux autres modes de réalisation de l'invention.
Other objects and advantages of the invention will appear during the description made with reference to the appended figures in which:
  • Figure 1 is a schematic view of the principle of a traditional central heating installation;
  • Figure 1a is a schematic view illustrating the operating principle of an installation comprising, connected to the central heating network, an air conditioning and heating device according to the invention comprising radiators and air conditioners, separated in the variant shown.
  • Figure 2 is a schematic view, according to an embodiment of an air conditioning and heating system according to the invention cooperating with the installation of Figure 1 and putting in situation a water cooling device or cooler, provided with '' a set of devices allowing its reliable operation on a central heating installation;
  • FIG. 3 represents another embodiment of the invention, an installation with a pump and an automatic operating device dedicated to the operation of the cooler;
  • Figure 4 shows another embodiment of the invention, the installation of Figure 2 further comprising a ventilated cooling element integrated in the mechanical cooling device and arranged in series with respect thereto;
  • Figure 5 shows according to another embodiment of the invention, the installation of Figure 3 with a ventilated cooling element integrated in the mechanical cooling devices and arranged in series with respect thereto;
  • Figure 6 shows according to another embodiment of the invention, the installation of Figure 2 with a ventilated cooling element integrated in the mechanical cooling device and arranged in parallel with respect thereto;
  • Figure 7 shows according to another embodiment of the invention, the installation of Figure 3 with a ventilated cooling element integrated in the mechanical cooling device and arranged in parallel with respect thereto.
  • Figures 8 and 9 show two other embodiments of the invention.

Sur la figure 1 est représenté un ensemble A comprenant une installation de chauffage central traditionnelle.In Figure 1 is shown an assembly A comprising an installation of traditional central heating.

Cette installation de chauffage central comporte un moyen de production d'eau chaude, par exemple une chaudière, un dispositif de circulation d'eau chaude, intégrée ou non au moyen de production, par exemple une pompe 2, un réseau de tuyauteries 3 et des éléments utilisateurs de chaleur 4 comme par exemple radiateur, convecteur, etc. This central heating installation includes a means of producing water hot, for example a boiler, a device for circulating hot water, integrated or not integrated into the production means, for example a pump 2, a network pipes 3 and heat user elements 4 such as for example radiator, convector, etc.

Sur la figure 2, l'ensemble A de la figure 1 est équipé d'un dispositif de climatisation et de chauffage 5, comprenant au moins un appareil de climatisation et chauffage 5a pouvant générer ou utiliser de la chaleur selon son mode de fonctionnement.In FIG. 2, the assembly A in FIG. 1 is equipped with a device for air conditioning and heating 5, comprising at least one air conditioning and heating 5a can generate or use heat according to its operating mode.

Chaque appareil 5a de climatisation et de chauffage comprend un radiateur 4 et un climatiseur 5b séparé ou non du radiateur 4.Each air conditioning and heating appliance 5a includes a radiator 4 and an air conditioner 5b separate or not from the radiator 4.

La figure 1 a les représente séparés pour bien comprendre le schéma de fonctionnement du climatiseur 5b. Les autres figures les représentent d'un bloc 5a pour ne pas charger les figures.Figure 1a shows them separately to understand the diagram of operation of the air conditioner 5b. The other figures represent them in one block 5a so as not to load the figures.

La chaudière 1, la pompe 2, le réseau 3 et les appareils 5a conservent, par exemple en hiver, leurs fonctions.The boiler 1, the pump 2, the network 3 and the devices 5a keep, by example in winter, their functions.

Le réseau de chauffage 3 comprend un dispositif de refroidissement d'eau 6 du réseau de chauffage central 3.The heating network 3 comprises a water cooling device 6 of the central heating network 3.

On décrit maintenant le fonctionnement de l'installation en mode chauffage. Une vanne trois voies 7, munie d'un moyen de basculement été/hiver, comme par exemple un contact placé sur la position hiver, est ouverte sur une voie 8, et fermée sur une voie 9 isolant ainsi du réseau d'eau chaude le dispositif de refroidissement 6 de l'eau du réseau 3, qui n'est pas en fonctionnement.The operation of the installation in heating mode is now described. A three-way valve 7, provided with a summer / winter switching means, as for example a contact placed in the winter position, is open on a track 8, and closed on a track 9 thus isolating from the hot water network the cooling 6 of the mains water 3, which is not in operation.

L'installation de chauffage fonctionne ainsi traditionnellement.The heating installation thus works traditionally.

Dans la chaufferie, la chaudière 1 est en service, ainsi que la pompe 2.In the boiler room, the boiler 1 is in service, as well as the pump 2.

Ainsi, malgré les équipements nécessaires à la climatisation en été, le fonctionnement du chauffage en hiver, est strictement identique à ce qu'il était précédemment sans ces équipements.Thus, despite the equipment necessary for air conditioning in summer, the heating operation in winter, is strictly identical to what it was previously without this equipment.

La vanne 7 fait partie de moyens hydrauliques d'interdiction du fonctionnement du dispositif de refroidissement 6 désigné par la suite refroidisseur. Des moyens de rupture de conduction thermique 10, comme par exemple un court tronçon de tuyauteries en matériau conducteur de chaleur, sont prévus pour isoler le refroidisseur 6.The valve 7 is part of hydraulic means for prohibiting operation cooling device 6 hereinafter designated cooler. Means of thermal conduction break 10, such as a short section pipes made of heat conductive material, are provided to insulate the cooler 6.

Pour éviter le risque de gel de l'évaporateur 12 du refroidisseur 6, un moyen d'injection 11 d'eau chaude du réseau 3 est prévu. Ce moyen d'injection 11 comme par exemple une électrovanne, est commandé en fonction d'une température représentative du risque de gel de l'évaporateur 12.To avoid the risk of freezing of the evaporator 12 of the cooler 6, a means injection 11 of hot water from the network 3 is planned. This injection means 11 like for example a solenoid valve, is controlled according to a temperature representative of the risk of freezing of the evaporator 12.

L'injection a lieu par intermittence jusqu'à l'obtention d'une température correcte de mise hors gel du refroidisseur 6, comme par exemple +2°C.The injection takes place intermittently until a correct temperature is obtained to freeze the cooler 6, such as + 2 ° C.

Pour éviter le risque d'une injection d'eau chaude, trop importante au niveau de l'évaporateur 12, les sections du moyen d'injection 11 et de sa tuyauterie sont très faibles. Ainsi, en cas de défaillance du moyen d'injection 11 permettant un débit continu sans contrôle, on évite les conséquences liées au réchauffement de l'évaporateur 12.To avoid the risk of hot water injection, too large in terms of the evaporator 12, the sections of the injection means 11 and of its piping are very weak. Thus, in the event of failure of the injection means 11 allowing a continuous flow without control, the consequences of heating are avoided of the evaporator 12.

Selon d'autres réalisations, la protection contre le gel de l'évaporateur peut être obtenue par d'autres moyens comme par exemple des traceurs électriques.According to other embodiments, the protection against freezing of the evaporator can be obtained by other means such as for example electric markers.

Les pressions susceptibles d'être atteintes en cas d'irrigation de l'évaporateur 12 avec de l'eau chaude étant très importantes, comme par exemple 36 bars avec de l'eau à 80°C et du fluide frigorigène R22, un moyen de décharge 13 du fluide frigorigène de l'évaporateur 12, vers le condenseur 14 est prévu. Ce moyen de décharge 13 permet de contourner, ou "by-passer" le compresseur 16.The pressures likely to be reached when the evaporator is irrigated 12 with hot water being very important, such as 36 bars with water at 80 ° C. and refrigerant R22, a discharge means 13 from the refrigerant from the evaporator 12 to the condenser 14 is provided. This discharge means 13 makes it possible to bypass, or "bypass" the compressor 16.

Ce moyen de décharge 13, comme par exemple une électrovanne commandée par une augmentation de pression décelée au niveau du pressostat basse pression 15, permet une transition d'autant plus rapide que l'évaporateur 12 présente un volume réduit par rapport au condenseur 14. This discharge means 13, such as for example a controlled solenoid valve by a pressure increase detected at the low pressure switch pressure 15, allows a transition all the more rapid as the evaporator 12 has a reduced volume compared to the condenser 14.

Ce moyen de décharge 13 a un rôle prépondérant en cas de défaillance de la vanne 7 qui autoriserait une ouverture totale ou partielle de la voie 9 en mode chauffage et qui impliquerait une arrivée non souhaitée d'eau chaude sous pression à l'évaporateur 12.This discharge means 13 has a preponderant role in the event of failure of the valve 7 which would allow total or partial opening of track 9 in mode heating and which would imply an undesired arrival of hot water under pressure at evaporator 12.

On décrit maintenant le fonctionnement de l'installation en mode de climatisation. La chaudière 1 est à l'arrêt, tandis que la pompe 2 reste en fonctionnement.We now describe the operation of the installation in air conditioner. Boiler 1 is stopped, while pump 2 remains in operation.

Le dispositif de climatisation et chauffage 5 est en mode climatisation, les climatiseurs 5a réchauffent l'eau du réseau 3.The air conditioning and heating device 5 is in air conditioning mode, the air conditioners 5a heat the mains water 3.

La vanne trois voies 7, commandée par exemple par un contact placé sur la position été, est ouverte sur une voie 9, permettant la circulation d'eau du réseau 3 dans le refroidisseur 6, et fermée par une voie 8 isolant ainsi du réseau 3 la chaudière 1.The three-way valve 7, controlled for example by a contact placed on the summer position, is open on a track 9, allowing the circulation of water from network 3 in the cooler 6, and closed by a channel 8 thus isolating from the network 3 the boiler 1.

La vanne trois voies 7 est équipe d'un dispositif de sécurité interdisant l'ouverture sur la voie 9, si au moins un brûleur de chaudière 1 est en fonctionnement.The three-way valve 7 is fitted with a safety device preventing the opening on track 9, if at least one boiler burner 1 is in operation.

L'eau réchauffée au passage du dispositif de climatisation et chauffage 5 circule dans le réseau 3 jusqu'au refroidisseur 6 qui la maintient à la température souhaitée pour le bon fonctionnement du dispositif 5.The water heated by the passage of the air conditioning and heating device 5 circulates in the network 3 to the cooler 6 which keeps it at the temperature desired for the proper functioning of the device 5.

Le cycle frigorifique du refroidisseur 6 comprend une compression ou primaire à l'aide d'un compresseur 16, une condensation au niveau du condenseur 14 ventilé en fonction de la haute pression 19, par le ventilateur 17, une baisse de pression à l'aide d'un détendeur 18 et une évaporation au niveau du primaire de l'échangeur formé par l'évaporateur 12. A noter que dans le cas de l'utilisation d'un ventilateur centrifuge, le refroidisseur 6 pourra être relié à l'extérieur par des gaines d'air et se trouver à l'intérieur du local A. The refrigeration cycle of the cooler 6 includes compression or primary using a compressor 16, condensation at the condenser 14 ventilated according to high pressure 19, by fan 17, a drop in pressure using a pressure reducer 18 and evaporation at the primary level of the exchanger formed by the evaporator 12. Note that in the case of use a centrifugal fan, the cooler 6 can be connected to the outside by air ducts and be inside room A.

La température de l'eau en sortie du secondaire de l'évaporateur 12 devra être maintenue à un niveau permettant le bon fonctionnement du dispositif de climatisation et chauffage 5 tout en ne provoquant ni rafraíchissement, ni réchauffage au niveau des éléments utilisateurs de chaleur 4 restés en place au réseau 3.The temperature of the water leaving the secondary of the evaporator 12 must be maintained at a level allowing the proper functioning of the air conditioning and heating 5 while not causing cooling or reheating at the level of the heat user elements 4 which have remained in place network 3.

Ce résultat est atteint avec une eau à par exemple 25°C, ou variable et commandée par la température ambiante du bâtiment.This result is achieved with water at for example 25 ° C., or variable and controlled by the ambient temperature of the building.

Les climatiseurs 5a du dispositif de climatisation et chauffage 5 pouvant être équipés de moyens permettant l'introduction de leurs eaux de condensation dans le réseau de chauffage 3, un dispositif permettant le traitement de ces eaux est incorporé au refroidisseur 6. Les liquides n'étant pas compressibles, les eaux de condensation introduites sous pression dans le réseau de chauffage 3 sont rejetées au niveau d'une vanne de décharge 19 intégrée au niveau du circuit de circulation d'eau secondaire du refroidisseur 6.The air conditioners 5a of the air conditioning and heating device 5 can be equipped with means allowing the introduction of their condensation water in the heating network 3, a device allowing the treatment of these water is incorporated into the cooler 6. Since the liquids are not compressible, condensed water introduced under pressure into the heating network 3 are rejected at a discharge valve 19 integrated at the level of the secondary water circulation circuit of the chiller 6.

Cette vanne de décharge 19 dont la commande est par exemple pressostatique permet d'éviter les surpressions dans le réseau 3. Dans le même type de réalisation, l'introduction des eaux de condensation dans le réseau de chauffage 3 pouvant entraíner une variation notable de son pH, un régulateur 20 de maintien de pH peut être incorporé au refroidisseur 6.This discharge valve 19 whose control is for example pressostatic avoids overpressures in network 3. In the same type of realization, the introduction of condensation water in the heating network 3 can cause a significant variation in its pH, a regulator 20 of pH maintenance can be incorporated into the cooler 6.

Afin d'éviter tout risque d'acidification du réseau, une alarme signale une éventuelle défaillance du régulateur 20 de maintien de pH ou la nécessité de le recharger en élément basique lorsque le niveau est atteint.In order to avoid any risk of acidification of the network, an alarm signals a possible failure of the pH maintaining regulator 20 or the need to recharge as a basic element when the level is reached.

D'une manière générale, le dispositif 6 comporte des moyens de commande 21 et des moyens de branchement 22 électrique du ventilateur 17 de condenseur 14, d'un moteur de compresseur 16, et ici des moyens de raccordement 21 à une source S d'énergie. Cette source S est ici le secteur électrique du local A. In general, the device 6 includes control means 21 and electrical connection means 22 of the condenser fan 17 14, of a compressor motor 16, and here connection means 21 to an energy source S. This source S is here the electrical sector of room A.

Le dispositif 6 comporte en outre dans ses moyens de commande, un agencement de sécurité 23. Cet agencement 23 interdit le fonctionnement du refroidissement d'eau 6 à l'aide de moyens provoquant l'arrêt impératif du compresseur 16, si la vanne trois voies 7 est ouverte sur la voie 8 et/ou si au moins un brûleur de la chaudière 1 est en fonctionnement.The device 6 further comprises in its control means, a safety arrangement 23. This arrangement 23 prohibits the operation of the water cooling 6 using means causing the imperative shutdown of the compressor 16, if the three-way valve 7 is open on track 8 and / or if at at least one burner of the boiler 1 is in operation.

La figure 3 présente un deuxième mode de réalisation concernant la liaison du refroidisseur 6 au réseau de chauffage central 3. Le dispositif utilisé permet l'exploitation d'une pompe 24 totalement dédiée et adaptée au fonctionnement en mode climatisation et permet un basculement automatique d'une vanne de deux voies 25 été/hiver.FIG. 3 shows a second embodiment concerning the connection of the cooler 6 to the central heating network 3. The device used allows the operation of a fully dedicated pump 24 adapted to the operation in air conditioning mode and allows automatic switching of a two lanes 25 summer / winter.

En mode chauffage, la vanne deux voies 25, munie d'un moyen de basculement été/hiver pouvant être manuel ou automatique, comme par exemple thermostatique en fonction de la température de l'eau circulant dans le réseau 3, est fermée, ce qui entraíne la mise hors service de la pompe 24.In heating mode, the two-way valve 25, provided with a tilting means summer / winter can be manual or automatic, such as for example thermostatic as a function of the temperature of the water circulating in the network 3, is closed, which causes the pump 24 to be taken out of service.

Cet isolement du refroidisseur 6 par rapport au réseau 3 est effectuée pour une température d'eau à une valeur par exemple supérieure à 35°C, ce qui est révélateur du fonctionnement de la chaudière 1, le réseau étant maintenu à 25°C en mode climatisation. Dans la chaufferie, le moyen de production 1 est en service, ainsi que la pompe 2 permettant un fonctionnement normal du chauffage en hiver. De la même manière que décrit dans la figure 2, des moyens de rupture de conduction thermique 10 sont prévus, un moyen d'injection 11 permet de pallier un éventuel risque de gel de l'évaporateur 12, tandis qu'un moyen de décharge 13 permet de pallier les conséquences d'une éventuelle arrivée d'eau chaude au niveau de l'évaporateur 12.This isolation of the cooler 6 from the network 3 is carried out for a water temperature at a value for example greater than 35 ° C, which is indicative of the operation of boiler 1, the network being maintained at 25 ° C in air conditioning mode. In the boiler room, the means of production 1 is in service, as well as pump 2 allowing normal operation of the heating in winter. As described in Figure 2, means for breaking thermal conduction 10 are provided, a means injection 11 overcomes a possible risk of freezing of the evaporator 12, while a discharge means 13 makes it possible to mitigate the consequences of a possible hot water supply to the evaporator 12.

En mode de climatisation la vanne deux voies 25 est ouverte ce qui entraíne la mise en service de la pompe 24. La chaudière 1 et la pompe 2 sont à l'arrêt et le dispositif de climatisation et chauffage 5 est en mode climatisation.In air conditioning mode the two-way valve 25 is open which causes the commissioning of pump 24. Boiler 1 and pump 2 are stopped and the air conditioning and heating device 5 is in air conditioning mode.

Le fonctionnement en mode climatisation est alors strictement identique à celui décrit dans la figure 2 et intègre notamment si besoin des moyens de maintien de pression 19' et des moyens 20 de maintien de pH. Un agencement de sécurité 23 interdit l'ouverture de la vanne 25, et provoque l'arrêt impératif du compresseur 16 quelle que soit la température d'eau du niveau 3, si au moins un brûleur de la chaudière 1 est en fonctionnement.Operation in air conditioning mode is then strictly identical to that described in Figure 2 and incorporates in particular if necessary holding means pressure 19 ′ and means 20 for maintaining pH. An arrangement of safety 23 prohibits the opening of the valve 25, and causes the imperative stop of the compressor 16 regardless of the level 3 water temperature, if at least a burner of the boiler 1 is in operation.

La figure 4 représente un mode de réalisation coopérant avec l'installation de la figure 2 avec un élément de refroidissement ventilé intégré au dispositif de refroidissement mécanique et disposé en série par rapport à celui-ci.FIG. 4 represents an embodiment cooperating with the installation of the Figure 2 with a ventilated cooling element integrated into the mechanical cooling and arranged in series with respect thereto.

En mode chauffage, la vanne trois voies 7 est ouverte sur une voie 8 et permet un fonctionnement identique à celui décrit dans la figure 2.In heating mode, the three-way valve 7 is open on a channel 8 and allows an operation identical to that described in FIG. 2.

En mode climatisation, la vanne trois voies 7 est ouverte sur une voie 9 et permet la circulation du fluide du réseau 3 jusqu'à une vanne trois voies 26. Cette vanne trois voies 26 munie d'un moyen de basculement comme par exemple thermostatique en fonction de la température extérieure, permet l'alimentation ou le « by-pass » d'une batterie aéroréfrigérante 32. L'eau du réseau 3 étant maintenue à par exemple 25°C en mode climatisation, la vanne trois voies 26 est ouverte sur une voie 27 permettant l'alimentation d'une batterie aéroréfrigérante 32 pour des températures extérieures inférieures à par exemple 25°C.In air conditioning mode, the three-way valve 7 is open on a track 9 and allows the circulation of fluid from network 3 to a three-way valve 26. This three-way valve 26 provided with a tilting means as by thermostatic example depending on the outside temperature, allows the supply or “bypass” of an air-cooling coil 32. The water from the network 3 being maintained at for example 25 ° C. in air conditioning mode, the valve three ways 26 is open on a way 27 allowing the supply of a cooling coil 32 for outside temperatures below par example 25 ° C.

Durant cette alimentation, l'eau du réseau 3 est refroidie totalement ou partiellement au niveau de la batterie aéroréfrigérante 32, ventilée par le ventilateur 17, en fonction de la température de sortie d'eau de celle-ci.During this supply, the mains water 3 is completely cooled or partially at the cooling coil 32, ventilated by the fan 17, depending on the water outlet temperature thereof.

Par suite, le compresseur 16 équipé d'un dispositif de commande pouvant être par exemple thermostatique en fonction de la température de sortie d'eau de la batterie 32, entre un service ou non. A noter que lors de la mise en service, le ventilateur 17 se trouve piloté en fonction de la haute pression à maintenir au niveau du condenseur 14, et non plus en fonction de la température de sortie d'eau de la batterie 32, cette dernière n'ayant plus qu'un rôle de pré-refroidissement. As a result, the compressor 16 equipped with a control device which can be for example thermostatic as a function of the water outlet temperature of the battery 32, between a service or not. Please note that during commissioning, the fan 17 is controlled according to the high pressure to be maintained at level of the condenser 14, and no longer as a function of the outlet temperature of water from the battery 32, the latter having only a pre-cooling role.

Pour des températures extérieures supérieures à par exemple 25°C, la vanne trois voies 26 est ouverte sur une voie 28 et fermée sur une voie 27 permettant le by-pass de la batterie aérorefrigérante 32 qui laissée en fonction à ces niveaux de température extérieure entraínerait un réchauffement du fluide.For outside temperatures above 25 ° C for example, the valve three lanes 26 is open on one lane 28 and closed on one lane 27 allowing the bypass of the cooling coil 32 which is left in operation at these outdoor temperature levels would cause the fluid to heat up.

Dan ce cas de figure, le maintien de température du fluide du réseau 3 est assuré exclusivement par le compresseur 16 qui pilote le ventilateur 17 en fonction de la température de condensation. Par la suite, le fonctionnement en mode climatisation est totalement identique à celui présenté dans le descriptif de la figure 2. A noter dans ce mode de réalisation la présente d'une vanne trois voies 29 permettant de subir sans dommage une éventuelle introduction d'eau chaude au niveau du refroidissement 6 pouvant être due à une ouverture ou fuite de la voie 29 de la vanne trois voies 7 en mode chauffage. Cette vanne trois voies 29 est munie d'un moyen de basculement comme par exemple une bulle thermostatique amont permettant de s'ouvrir sur la voie 31, si la température du fluide devient par exemple supérieure à 45°C.In this case, maintaining the temperature of the fluid in network 3 is provided exclusively by the compressor 16 which controls the fan 17 in as a function of the condensing temperature. Thereafter, operation in air conditioning mode is completely identical to that presented in the description in Figure 2. Note in this embodiment the presence of a three valve tracks 29 allowing to undergo without damage a possible introduction of water hot at cooling 6 which may be due to opening or leakage from track 29 of the three-way valve 7 in heating mode. This valve three-way 29 is provided with a tilting means such as for example a upstream thermostatic bubble allowing to open on track 31, if the temperature of the fluid becomes for example greater than 45 ° C.

Ainsi, l'ouverture de la voie 31 permettant le by-pass de l'évaporateur 12, aucune augmentation de pression trop importante au niveau du circuit frigorifique du refroidisseur 6 n'est provoquée, une température d'eau de 45°C correspondant par exemple à 17 bars au R22.Thus, the opening of the channel 31 allowing the bypass of the evaporator 12, no excessive pressure increase in the circuit of the cooler 6 is not caused, a water temperature of 45 ° C corresponding for example to 17 bars at R22.

En fonctionnement normal, la température du fluide étant inférieure à 45°C, la vanne trois voies 29 est ouverte sur une voie 30 permettant le passage du fluide dans l'évaporateur 12.In normal operation, the fluid temperature being below 45 ° C, the three-way valve 29 is open on a track 30 allowing the passage of the fluid in the evaporator 12.

Le dispositif représenté par la vanne trois voies 29 présente la même finalité que la vanne de décharge 13 et peut être exploité conjointement ou indépendamment par rapport à celle-ci.The device represented by the three-way valve 29 has the same purpose that the relief valve 13 and can be operated jointly or independently from it.

La vanne trois voies 29 peut notamment être utilisée de la même manière au niveau des figures 2 et 3. The three-way valve 29 can in particular be used in the same way for level of Figures 2 and 3.

La figure 5 représente un mode de réalisation coopérant avec l'installation de la figure 3 avec un élément de refroidissement ventilé intégré au dispositif de refroidissement mécanique et disposé en série par rapport à celui-ci.
En mode chauffage, le fonctionnement est identique à celui décrit dans la figure 3.FIG. 5 represents an embodiment cooperating with the installation of FIG. 3 with a ventilated cooling element integrated into the mechanical cooling device and arranged in series with respect thereto.
In heating mode, the operation is identical to that described in Figure 3.

En mode climatisation, le fonctionnement est identique à celui décrit dans la figure 3 en ce qui concerne l'exploitation de l'évaporateur 12. L'exploitation de la batterie aéroréfrigérante 32 permettant un refroidissement total ou partiel du fluide du réseau 3 en coopération avec l'évaporateur 12 est conforme au descriptif de la figure 4. De même en ce qui concerne la vanne trois voies 29 de by-pass de l'échangeur 12.In air conditioning mode, the operation is identical to that described in the FIG. 3 with regard to the operation of the evaporator 12. The operation of the cooling coil 32 allowing total or partial cooling of the network fluid 3 in cooperation with the evaporator 12 conforms to the description of FIG. 4. The same applies to the three-way valve 29 of exchanger bypass 12.

Selon la figure 8 qui représente le cas où une source froide est disponible, le système de refroidissement 6 peut être remplacé par un échangeur 49 relié au réseau de chauffage par une vanne 3 voies 7 selon la même mode que sur la figure 2. Une vanne 3 voies de mélange 50 permet d'obtenir le maintien du réseau de chauffage à 25°C en répartissant son débit d'entrée sur les sorties 51 et 52. De la même manière, une vanne de décharge 19 et un régulateur de PH 20 sont prévus.According to FIG. 8 which represents the case where a cold source is available, the cooling system 6 can be replaced by an exchanger 49 connected to the heating network by a 3-way valve 7 in the same mode as on the Figure 2. A 3-way mixing valve 50 makes it possible to maintain the heating network at 25 ° C by distributing its input flow over the outputs 51 and 52. Likewise, a discharge valve 19 and a PH regulator 20 are planned.

La figure 9 représente un autre mode de réalisation concernant la liaison de l'échangeur 49 au réseau de chauffage. Le dispositif utilisé permet de la même manière que sur la figure 3, d'exploiter une pompe 24 totalement dédiée et adaptée au fonctionnement en mode climatisation et d'obtenir le basculement automatique d'une vanne 2 voies 25 été/hiver.FIG. 9 shows another embodiment relating to the connection of the exchanger 49 to the heating network. The device used allows the same so that in Figure 3, operate a fully dedicated pump 24 and suitable for operation in air conditioning mode and to obtain tilting automatic 2-way valve 25 summer / winter.

On a décrit le fonctionnement du refroidisseur 6. On décrit maintenant celui des climatiseurs 5a et du système de by-pass qui peut être intégré.The operation of the cooler 6 has been described. We will now describe that of the air conditioners 5a and bypass system which can be integrated.

En fonctionnement en mode chauffage, la sortie du radiateur 4 est dirigée vers une voie 33, tandis qu'une voie 34 d'une vanne trois voies 35 est fermée. In operation in heating mode, the output of the radiator 4 is directed to a channel 33, while a channel 34 of a three-way valve 35 is closed.

Une position de la vanne 35 permet que la sortie de l'élément 4 retourne au réseau 3, par la canalisation 36, le climatiseur 5b n'étant pas en service.A position of the valve 35 allows the outlet of the element 4 to return to the network 3, via line 36, the air conditioner 5b not being in service.

Des moyens 37 de rupture de conduction thermique permettent d'isoler un condenseur 38 dans le climatiseur 5b, du réseau 3 d'eau chaude.Means 37 for breaking thermal conduction make it possible to isolate a condenser 38 in the air conditioner 5b, of the hot water network 3.

Ce condenseur 38 comporte un primaire 39 et un secondaire 40 relié au réseau 3.This condenser 38 comprises a primary 39 and a secondary 40 connected to the network 3.

Les moyens de rupture de conduction thermique 37 peuvent ici être très simples comme par exemple un court tronçon de tuyauterie en matériau peu conducteur de la chaleur, car dans ce mode de fonctionnement, l'eau ne circule pas dans le condenseur 38.The thermal conduction breaking means 37 can here be very simple such as a short section of piping made of non-conductive material heat, because in this operating mode, water does not circulate in the condenser 38.

L'installation de chauffage fonctionne traditionnellement. Dans la chaufferie, la chaudière 1 est en service ainsi que la pompe 2.The heating system has traditionally operated. In the boiler room, the boiler 1 is in service as well as pump 2.

La vanne trois voies 7 est ouverte sur la voie 8 et fermée sur la voie 9 isolant ainsi du réseau d'eau chaude le refroidisseur 6 de l'eau du réseau 3, qui n'est pas en fonctionnement.The three-way valve 7 is open on track 8 and closed on track 9 insulating thus from the hot water network the cooler 6 of the network water 3, which is not not in operation.

En fonctionnement en mode climatisation, la chaudière 1 est à l'arrêt. Le climatiseur 5b est en service.In operation in air conditioning mode, boiler 1 is stopped. The air conditioner 5b is in use.

Un évaporateur 41 dans le climatiseur 5b refroidit l'air ambiant du local A, véhiculé par un ventilateur 42.An evaporator 41 in the air conditioner 5b cools the ambient air in room A, conveyed by a fan 42.

Le cycle frigorifique est traditionnel avec une augmentation de pression au primaire à l'aide d'un compresseur 43, condensation au primaire 39 de l'échangeur formé par le condenseur 38, une baisse de pression à l'aide d'un détendeur tel qu'un capillaire 44 et à nouveau évaporation dans l'évaporateur 41. The refrigeration cycle is traditional with an increase in pressure at primary using a compressor 43, primary condensing 39 of the exchanger formed by the condenser 38, a drop in pressure using a regulator such as a capillary 44 and again evaporation in the evaporator 41.

L'eau circulant au secondaire 40 du condenseur 38 est véhiculée par le réseau 3 de chauffage central.The water circulating in the secondary 40 of the condenser 38 is conveyed by the network 3 central heating.

Cette eau, provenant comme en mode chauffage, de la sortie du radiateur 4 est dirigée par la vanne trois voies 35 fermée sur la voie 33 et ouverte sur la voie 34, vers le condenseur 38.This water, coming as in heating mode, from the outlet of the radiator 4 is directed by the three-way valve 35 closed on track 33 and open on track 34, to condenser 38.

L'eau en sortie du climatiseur 5b emprunte la canalisation 36 vers le refroidisseur extérieur 6, à travers la vanne trois voies 7, dont la voie 8 est fermée et la voie 9 est ouverte, la pompe 2 étant en service.The water leaving the air conditioner 5b borrows the pipe 36 towards the outside cooler 6, through the three-way valve 7, the way 8 of which is closed and track 9 is open, pump 2 being in service.

L'eau se réchauffant au passage dans le condenseur 38, le refroidisseur 6 permet de maintenir l'eau du réseau 3 à la température souhaitée pour les condenseurs 38.The water heating up as it passes through the condenser 38, the cooler 6 keeps the mains water 3 at the desired temperature for the condensers 38.

Le refroidissement de l'air ambiant au passage sur l'évaporateur 41 provoque de la condensation et l'eau ainsi recueillie par un collecteur 45 doit être évacuée. Cela peut être réalisé de façon gravitaire classique, par écoulement dans des petites tuyauteries souples ou rigides faciles à poser en plinthe. Ces eaux de condensation peuvent être évacuées par leur introduction sous pression dans le réseau de chauffage 3 par l'intermédiaire d'une pompe 46 et d'un clapet anti-retour 47.The cooling of the ambient air on passing over the evaporator 41 causes the condensation and the water thus collected by a collector 45 must be evacuated. This can be done in a conventional gravity fashion, by flow in small flexible or rigid pipes easy to install on the plinth. These waters of condensation can be evacuated by their introduction under pressure into the heating network 3 via a pump 46 and a non-return valve 47.

Un système de "by-pass" peut être réalisé pour éviter les conséquences dues à l'arrivée d'eau chaude sous pression aux condenseurs 38 des climatiseurs 5a.A "by-pass" system can be implemented to avoid the consequences due to the arrival of pressurized hot water to the condensers 38 of the air conditioners 5a.

Une vanne de décharge 48 du fluide du condenseur 38 vers l'évaporateur 41 est prévue pour chaque climatiseur 5b, en contournant le détendeur 44.A discharge valve 48 of the fluid from the condenser 38 to the evaporator 41 is provided for each air conditioner 5b, bypassing the regulator 44.

Claims (16)

  1. A system for heating and air-conditioning a building, said system comprising:
    inside the building (A) to be cooled outside the heating period, an air-conditioning and heating device (5) comprising at least one air-conditioning unit (5b), each air-conditioning unit comprising in particular a water-cooled condenser (38) forming an exchanger, a pressure reducing valve (44), an evaporator (41) and an evaporator fan (42), and a compressor (43);
    a device (6) for cooling the water circulating in the condensers (38) of the air-conditioning device, comprising in particular an evaporator (12) forming an exchanger, a compressor (16), a condenser (14) and a condenser fan (17), and a pressure reducing valve (18) ;
    a central heating network operating essentially in the heating period in order to supply the heating elements (4) of the air-conditioning and heating device (5) by means of at least one boiler (1), the network (3) being used for the circulation of water between the condensers (38) of the air-conditioning device (5) and the cooling device in the cooling period;
    means for connecting the cooling device and the air-conditioning device to the central heating network, comprising means (7, 35, 25) for prohibiting, in the normal situation in heating mode, the entry of hot water to the evaporator (12) of the cooling device (6) and to the condenser (38) of the air-conditioning device;
    characterised in that at least one of said cooling device (6) and said air-conditioning device (5) comprises discharge means (13, 48), being brought into service in heating mode when the exchanger (12, 38) of said device, respectively the evaporator (12) for the cooling device (6) and at least one condenser (38) for the air-conditioning and heating device (5), receives in an undesired manner, from the network (3), hot water generating high pressure, in particular in the case of failure of the means (7, 35, 25) for prohibiting the entry of water from the network to the exchanger of said device.
  2. A system according to Claim 1, characterised in that the temperature of the water at the output of the cooling device (6) in air-conditioning mode is maintained close to 25°C, in order to allow the correct operation of the air-conditioning and heating device (5).
  3. A system according to either one of Claims 1 or 2, characterised in that the discharge means of the cooling device (6) comprise a valve (13) for discharging refrigerating fluid from the evaporator (12) to the condenser (14), so as to bypass the compressor (16).
  4. A system according to any one of Claims 1 to 3, characterised in that the discharge means for each air-conditioning unit (5b) of the air-conditioning device (5) comprise a valve (48) for discharging refrigerating fluid from the condenser (38) to the evaporator (41), so as to bypass the pressure reducing valve (44).
  5. A system according to any one of Claims 1 to 4, characterised in that the prohibiting means comprise a three―way valve (7), in heating mode isolating the cooling device (6) from the network (3), and in air-conditioning mode connecting the cooling device (6) to the network (3) and isolating the boiler (1) from the network (3).
  6. A system according to any one of Claims 1 to 5, characterised in that it comprises a discharge valve (19) at which the water introduced under pressure into the heating network (3) is expelled in order to avoid excess pressure in the network 3.
  7. A system according to any one of Claims 1 to 6, characterised in that it comprises first heat conduction interruption means (10) between the air-conditioning device and the heating network (3) and second heat conduction interruption means (37) between the cooling device (6) and the heating network (3).
  8. A system according to any one of Claims 1 to 7, characterised in that it comprises in heating mode a frost protection device (11) for the evaporator (12) of the cooling device (6), comprising electric tracers, or means (11) for injecting hot water, controlled according to a risk-of-frost temperature close to 2°C.
  9. A system according to any one of Claims 1 to 8, characterised in that it comprises a pH maintenance regulator (20) intended to avoid acidification of the heating network (3) caused by circulation of condensation water in the network.
  10. A system according to any one of Claims 1 to 9, characterised in that it comprises means (22) for electrical connection of the fan (17), of a compressor motor (16), of means (23) for prohibiting operation of the compressor (16) in heating mode, and possibly of control means (21), to an energy source (S) such as the electrical mains supply of the building (A).
  11. A system according to any one of Claims 1 to 10, characterised in that it comprises a two-way valve (25) provided with a summer/winter automatic switching means triggered according to the temperature of the water in the network (3), allowing the operation of a pump (24) dedicated to the air-conditioning mode alone:
    the two-way valve (25) being closed in heating mode, the cooling device (6) then being isolated from the network (3), from a water temperature revealing the operation of the boiler, for example 35°C when the network (3) is maintained at 25°C in air-conditioning mode;
    the two-way valve being open in air-conditioning mode, leading to the pump (24) being brought into service, the cooling device (6) being connected to the network (3), a safety mechanism (23) prohibiting the opening of the valve (25) and causing the mandatory halting of the compressor (16) irrespective of the water temperature of the network (3) if the boiler is operating.
  12. A system according to any one of Claims 1 to 11, characterised in that it comprises a cooling element of self-cooling fan coil unit type (32), integrated with the cooling device (6) and disposed in series with respect to the condenser (14), a switching means (26) allowing, in air-conditioning mode, the fan coil unit (32) to be supplied when the temperature outside the building is lower than the temperature of the water in the network close to 25°C.
  13. A system according to Claim 12, characterised in that it comprises a three-way valve (29) before the entry to the evaporator (12) provided with a switching means, enabling the circulation of fluid to the evaporator in the normal situation, below the normal temperature of this fluid of the order of 45°C, and allowing the evaporator (12) to be bypassed for higher temperatures.
  14. An air-conditioning and heating installation, characterised in that it comprises at least one cooling and air-conditioning system according to any one of the preceding claims.
  15. A method of installing a heating and air-conditioning system (31) according to any one of Claims 1 to 14, characterised in that it comprises at least the steps making provision for:
    installing inside the building (A) the air-conditioning device (5);
    installing outside the building (A) the device (6) for cooling the water of the internal air-conditioning device (5);
    installing inside and/or outside the building hydraulic means such as a three-way valve (7) capable of allowing circulation in the cooling device (6) or prohibiting it in an air-conditioning mode;
    connecting the cooling device and air-conditioning device (6) by means of a central heating water circulation network (3), possibly existing in the building (A), able furthermore to supply at least one heating element (4), so that this network (3) allows, in air-conditioning mode when the boiler (1) is off, the circulation of water between the condensers (38) of the air-conditioning device (5) and the cooling device (6), and in heating mode an operation of supplying the heating elements (4).
  16. A method according to Claim 15, characterised in that there are installed inside a building (A) to be cooled a number of air-conditioning devices, and outside the building (A) at least one cooling device common to at least two internal air-conditioning devices (11).
EP01400348A 2000-02-11 2001-02-09 Heating and air conditioning system Expired - Lifetime EP1124097B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0001746A FR2805031B1 (en) 2000-02-11 2000-02-11 HEATING AND AIR CONDITIONING SYSTEM
FR0001746 2000-02-11

Publications (2)

Publication Number Publication Date
EP1124097A1 EP1124097A1 (en) 2001-08-16
EP1124097B1 true EP1124097B1 (en) 2004-04-14

Family

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EP (1) EP1124097B1 (en)
AT (1) ATE264484T1 (en)
DE (1) DE60102726T2 (en)
ES (1) ES2219484T3 (en)
FR (1) FR2805031B1 (en)

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Publication number Priority date Publication date Assignee Title
CN1485588B (en) * 2003-07-29 2010-10-06 孟凡正 Dual-purpose multiple operating mode self-defrosting type heat pump air-conditioner and automatic defrosting process thereof
CN101782263B (en) * 2010-03-10 2012-06-27 广东吉荣空调有限公司 Multi-operating mode energy-saving controlled combined type thermostatic and humidistatic air conditioning unit with thermometal compound box body structure
JP6371688B2 (en) * 2014-11-21 2018-08-08 ヤンマー株式会社 heat pump

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3161029A (en) * 1962-10-04 1964-12-15 Carrier Corp Refrigeration systems operable at low condenser pressures
US3529433A (en) * 1969-03-17 1970-09-22 Chrysler Corp Refrigeration apparatus with means to increase liquid refrigerant pressure
DE2748277A1 (en) * 1977-10-27 1979-05-03 Siemens Ag Compact refrigerator with readily connected pipes - has separation sections ensuring gas by=pass connection to throttle and evaporator
US5937658A (en) * 1998-02-24 1999-08-17 Scotsman Group Apparatus and method for head pressure control valve disabling for an icemaker
FR2776053B1 (en) 1998-03-10 2000-06-16 Francois Lego METHOD FOR INSTALLING A HEATING AND AIR CONDITIONING SYSTEM USING A CENTRAL HEATING NETWORK, DEVICE, AND HEATING AND AIR CONDITIONING SYSTEM

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Publication number Publication date
ES2219484T3 (en) 2004-12-01
FR2805031B1 (en) 2002-05-17
FR2805031A1 (en) 2001-08-17
ATE264484T1 (en) 2004-04-15
DE60102726D1 (en) 2004-05-19
DE60102726T2 (en) 2005-03-31
EP1124097A1 (en) 2001-08-16

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