WO1998012486A1 - Conditionneur d'air et support contenant un programme de commande de fonctionnement associe - Google Patents

Conditionneur d'air et support contenant un programme de commande de fonctionnement associe Download PDF

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Publication number
WO1998012486A1
WO1998012486A1 PCT/JP1996/002716 JP9602716W WO9812486A1 WO 1998012486 A1 WO1998012486 A1 WO 1998012486A1 JP 9602716 W JP9602716 W JP 9602716W WO 9812486 A1 WO9812486 A1 WO 9812486A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
outdoor unit
unit
indoor
outdoor
Prior art date
Application number
PCT/JP1996/002716
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Kosugi
Minetoshi Izushi
Yoshiki Hata
Kensaku Oguni
Original Assignee
Hitachi, Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi, Ltd. filed Critical Hitachi, Ltd.
Priority to PCT/JP1996/002716 priority Critical patent/WO1998012486A1/fr
Priority to JP51447698A priority patent/JP3952510B2/ja
Publication of WO1998012486A1 publication Critical patent/WO1998012486A1/fr

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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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units

Definitions

  • the present invention relates to an air conditioner having a refrigeration cycle, and is particularly suitable for an air conditioner that commonly uses an indoor unit regardless of the working refrigerant and a medium in which an operation control program is recorded.
  • a storage device storing different control constants for each refrigerant is provided, and the control constants read by each control device are switched according to the refrigerant to be sealed.
  • Japanese Patent Application Laid-Open No. Hei 6-93981 discloses one such example.
  • Japanese Patent Application Laid-Open No. Hei 7-253520 discloses an example of selecting a control pattern corresponding to the control pattern and controlling the opening of the electronic expansion valve in accordance with the selected control pattern.
  • An object of the present invention is to provide an air conditioner that can handle a plurality of refrigerants and can be operated without changing at least a room unit, and a medium recording an operation control program thereof. And there.
  • the present invention relates to an air conditioner that sequentially connects a compressor, a heat exchanger, and an expansion valve to form a refrigeration cycle, wherein the first refrigerant uses a first refrigerant as a working refrigerant.
  • An outdoor unit that is connectable to an outdoor unit and a second outdoor unit that uses a second refrigerant different from the first refrigerant as a working refrigerant, the indoor unit being provided in the indoor unit, and connected to the indoor unit.
  • An indoor expansion valve controlled by a command from the first outdoor unit or the second outdoor unit, wherein the control of the refrigeration cycle is connected to the second outdoor unit. Alternatively, the control value is changed in accordance with the second outdoor unit.
  • An indoor unit to which a first outdoor unit that uses the first refrigerant as an operating refrigerant is connectable means a component of the second outdoor unit that uses the first refrigerant as an operating refrigerant, for example, heat exchange.
  • Unit, compressor, pressure switch, etc. which means that any of the first and second outdoor units can be connected to the indoor unit.
  • the indoor unit and the first or second This can be achieved by standardizing the piping and connection joints with the outdoor units.
  • Controlling the refrigeration cycle by changing the control value according to the first outdoor unit connected to the indoor unit or the second outdoor unit means that the refrigeration cycle is controlled according to the outdoor unit actually connected to the indoor unit.
  • This means that control is performed by changing control values such as the control required for the refrigeration cycle, the rotation frequency of the compressor, the opening of the expansion valve, etc.
  • the microcontroller installed in the air conditioner This is performed by a computer or the like.
  • the indoor unit can be connected regardless of the working refrigerant, and at least the indoor and expansion valves are controlled by the connected outdoor unit. Therefore, when switching the working refrigerant, the outdoor unit needs to be replaced. Even with this, the indoor unit can use it as it is, and the optimal operation control according to the working refrigerant can be performed.
  • the present invention provides an air conditioner comprising a compressor, a heat exchanger, and an expansion valve sequentially connected to form a refrigeration cycle, wherein the first outdoor unit uses a first refrigerant as a working refrigerant and the first outdoor unit.
  • the second refrigerant which uses the second refrigerant as the refrigerant as the working refrigerant
  • An outdoor control device provided in the indoor unit, wherein the control value is changed according to the first outdoor unit or the second outdoor unit connected to the indoor unit, and the outdoor control unit and the front control unit are changed. It controls outdoor control equipment.
  • the heat transfer characteristics of the heat exchanger differ depending on the working refrigerant.However, during heating, the refrigerant and air flow in the indoor heat exchanger are arranged in a path so that they oppose each other. Even if the evaporation characteristics are reduced by one of the working refrigerants, the living performance can be improved by controlling the indoor control device and the outdoor control device according to the outdoor unit.
  • the present invention provides an air conditioner comprising a compressor, a heat exchanger, and an expansion valve sequentially connected to form a refrigeration cycle, wherein a first outdoor unit using a single refrigerant as an operating refrigerant and a mixed refrigerant are operated.
  • An indoor control device provided in the indoor unit controlled by a command from the first outdoor unit connected to the indoor unit or the second outdoor unit; and the first outdoor unit.
  • An outdoor control device provided in the second outdoor unit, and a pressure value of the indoor heat exchanger required when the second outdoor unit is connected to the indoor unit, The indoor heat exchange when the first outdoor unit is connected to the indoor unit.
  • the indoor control device and the outdoor control device are controlled so that the pressure value of the exchanger becomes substantially the same as the pressure value of the heat exchanger.
  • a compressor that is an outdoor control device keeps its suction pressure constant. Therefore, the operating frequency is controlled. Therefore, when replacing the first outdoor unit with a single refrigerant as the working refrigerant and the second outdoor unit with the mixed refrigerant as the working refrigerant, the difference in refrigerant physical properties and the heat exchanger Due to the difference in the heat transfer characteristics on the refrigerant side, the high pressure rises, especially during heating. Therefore, the operating frequency of the compressor is controlled, for example, as the indoor control device and the outdoor control device so that the pressure value of the indoor heat exchanger becomes substantially the same as the pressure value of the indoor heat exchanger regardless of which outdoor unit is connected. This can prevent a rise in pressure even in the case of a mixed refrigerant, and can share an indoor unit and an indoor heat exchanger.
  • a first outdoor unit that uses R22 as a working refrigerant and R ⁇ 07C are used.
  • the pressure value of the indoor heat exchanger becomes a value of 150 to 280 kPa
  • the physical properties of the refrigerant and the refrigerant of the heat exchanger are lower than those of R22. Due to the difference in side heat transfer characteristics, the pressure will increase, especially during heating. Therefore, no matter which outdoor unit is connected, the indoor control device and the outdoor control device are set so that the pressure value of the indoor heat exchanger becomes approximately the same value of 150 to 280 kPa.
  • the indoor heat exchanger or the like does not have a structure that can withstand high temperatures, and practical performance can be ensured in either case.
  • the present invention provides an air conditioner comprising a compressor, a heat exchanger, and an expansion valve sequentially connected to form a refrigeration cycle, wherein a first outdoor unit using a single refrigerant as an operating refrigerant and a mixed refrigerant are operated.
  • the indoor control device and the outdoor control device such that the discharge superheat degree of the compressor and the discharge superheat degree of the compressor when the first outdoor unit is connected to the indoor unit have substantially the same value. Is controlled.
  • the indoor control device and the outdoor control device are controlled by setting the discharge superheat of the compressor to substantially the same value, so that only the outdoor unit is used. With this command, the temperature set value of the indoor heat exchanger is determined, and the indoor unit and the indoor heat exchanger can be shared. Furthermore, the present invention relates to an air conditioner that forms a refrigeration cycle by sequentially connecting a compressor, a heat exchanger, and an expansion valve to a second outdoor unit using a single refrigerant as a working refrigerant and a mixed refrigerant.
  • the set value of the anti-freezing temperature of the indoor unit is substantially the same as the set value of the anti-freezing temperature of the indoor unit when the second outdoor unit is connected to the indoor unit.
  • the outdoor control device and the outdoor control device are controlled so as to have a value.
  • the freezing temperature of the indoor unit will differ from that of the single refrigerant. Regardless of which outdoor unit is connected, the set value of the freezing prevention temperature should be substantially the same as the temperature detected by the thermistor provided in the pipe of the indoor heat exchanger. (2) Since the control device and the outdoor control device are controlled, the indoor unit and the indoor heat exchanger can be shared.
  • the present invention forms a refrigeration cycle by sequentially connecting a compressor, a heat exchanger, and an expansion valve, and includes a first outdoor unit using the first refrigerant as a working refrigerant and the first refrigerant.
  • a first outdoor unit using the first refrigerant as a working refrigerant and the first refrigerant.
  • a second outdoor unit that uses a different second refrigerant as an operating refrigerant, and the first outdoor unit connected to the indoor unit, or the second outdoor unit.
  • the indoor expansion valve is controlled from the outdoor unit.
  • Optimal control according to the carrier characteristics can be performed.
  • a compressor, a heat exchanger, and an expansion valve are sequentially connected to form a refrigeration cycle, and a first outdoor unit using the first refrigerant as a working refrigerant and a first refrigerant different from the first refrigerant.
  • the second outdoor unit is connected to the second outdoor unit and the first outdoor unit or the second outdoor unit connected to the indoor unit.
  • the air conditioner having the indoor expansion valve provided in the indoor unit and the second refrigerant as the working refrigerant.
  • An operation control program for realizing a function of controlling the circulation amount of the refrigerant in the refrigerating cycle and a function of controlling the frequency of the compressor using the second refrigerant as the operating refrigerant is recorded.
  • the refrigerant characteristics can be improved by controlling the indoor expansion valve from the outdoor unit. Optimal control can be performed according to the situation.
  • a compressor, a heat exchanger, and an expansion valve are sequentially connected to form a refrigeration cycle, and a second outdoor unit using the first refrigerant as a working refrigerant and the first refrigerant are described below.
  • One of the indoor unit and the first outdoor unit or the second outdoor unit is connected to an air conditioner having an indoor expansion valve provided in the indoor unit controlled by a command.
  • Operating control program for realizing the function of controlling the frequency of the compressor This is the medium that recorded the media.
  • Fig. I is a block diagram showing an embodiment of the air conditioner of the present invention
  • Fig. 2 is a plan view showing a main structure of the indoor unit according to the embodiment
  • Fig. 3 is the same.
  • FIG. 4 is a plan view showing the main structure of the outdoor unit according to the embodiment
  • FIG. 5 similarly shows the internal structure of the outdoor unit Side view
  • Fig. 6 is a plan view of the control device
  • Fig. 7 is a block diagram showing a conventional air conditioner
  • Fig. 8 is a combination of a pair type air conditioner.
  • Blocks 1 ⁇ 1 and ninth are block diagrams showing combinations of multi-type air conditioners
  • Figure 10 is a graph showing the temperature distribution of the heat exchanger due to differences in refrigerant.
  • Diagram, Fig. 11 is a block diagram showing the bus arrangement of the parallel flow heat exchanger
  • Fig. 12 is a block diagram showing the path arrangement of the counter flow heat exchanger
  • Fig. 1 3 is a block diagram showing the main components of the harmony machine.
  • Fig. 1 is a block diagram showing a pair-type refrigeration cycle.
  • FIG. 3 is a block diagram showing a type of frozen cycle.
  • An air conditioner is a so-called cell that can combine indoor and outdoor units. This is a pallet type air conditioner.
  • the refrigeration cycle is composed of an indoor unit and an outdoor unit, and cooling and heating operations are performed according to signals from the control device.
  • Fig. 1 shows a combination of an indoor unit and an outdoor unit of an air conditioner according to an embodiment.
  • the outdoor unit 15a has a refrigerant dedicated to R22
  • the outdoor unit 15b has a refrigerant R4.
  • R22 refrigerant
  • Each component of the unit ⁇ 5a such as a heat exchanger, compressor, pressure switch, etc., is configured, and any of the first and second 15b outdoor units can be connected to the indoor unit 14c.
  • any of the first and second 15b outdoor units can be connected to the indoor unit 14c.
  • the control of the refrigeration cycle depends on the outdoor unit 15a connected to the indoor unit or the outdoor unit 15b according to the outdoor unit 15b connected to the indoor unit. Control the opening of the motor. Specifically, a program is read from a medium on which an operation control program for realizing those functions is recorded, such as a ROM or a floppy disk, and executed by a microcomputer provided in the air conditioner. You.
  • the indoor expansion valve 5 is controlled by the connected outdoor unit 15a or 15b, it is necessary to replace the outdoor unit when switching the working refrigerant of the air conditioner.
  • the indoor unit 14c can be used as it is, and optimal operation control according to the working refrigerant can be performed.
  • the refrigerant is R22 and R /] 07C has been described as an example, but the type of the refrigerant may be any.
  • the indoor unit can be shared. That is, the indoor unit 14c can be commonly used for both of two types of outdoor units dedicated to the refrigerant.
  • three or more The outdoor unit 14c can be combined with any of the outdoor units dedicated to different refrigerants.
  • FIG. 2 is a plan view showing the main structure of the indoor unit according to the embodiment
  • Fig. 3 is a side view showing the internal structure of the indoor unit
  • Fig. 4 is a main view showing the main structure of the outdoor unit
  • FIG. 5 is a plan view showing the structure
  • FIG. 5 is a side view showing the internal structure of the outdoor unit.
  • the inner unit 14c is connected to the heat exchanger 1, the blower motor 2, and the blower fan 3, and is a control device for controlling operation stop, cooling / heating, protection devices, etc. /], coolant flow rate
  • a control expansion valve 5 is installed.
  • the outdoor unit is a compressor 6, a heat exchanger 7, a blower motor 8, a blower fan 9, a four-way valve 10 for switching between cooling and heating, and an air separator for separating gas refrigerant and liquid refrigerant.
  • the outdoor unit is also provided with a control device 12 for controlling the cooling and Z heating, the ON / OFF of the compressor, the holding device, and the like.
  • Fig. 6 is a front view of the control device
  • Fig. 7 is a block diagram showing a conventional air conditioner
  • Fig. 8 is a block diagram showing a combination of a pair type air conditioner.
  • the control device 13 is connected to the indoor unit 14c, and outputs signals for operation stop, cooling and heating, and temperature setting.
  • the refrigerant uses an indoor unit 14a dedicated to K22 and an outdoor unit 15a dedicated to R22, and a certain indoor unit 1 dedicated to R407C.
  • An outdoor unit 15b dedicated to R407C is combined with 4b on the exclusive river respectively.
  • one indoor unit is combined with one outdoor unit as shown in Fig. 8.
  • the common indoor unit 14c can be combined.
  • a common indoor unit 14c may be combined.
  • the combination of a common indoor unit with two or more types of outdoor units dedicated to different types of refrigerants, both in a pair type and a multi-type is regarded as an H-type.
  • the refrigerant includes a single refrigerant represented by R22 and a mixed refrigerant represented by R407C.
  • the composition of the refrigerant of R22 is HCFC22 and the composition ratio is 100 wt%
  • the composition of R407C is HFC32ZHFC125 / IIFC134a and the composition ratio is The order is 23/25/52 2 wt%.
  • Refrigerants vary in density, latent heat, specific heat, saturation temperature, saturation pressure, affinity for refrigerating machine oil and chemical reactivity depending on the type of refrigerant. Therefore, the pressure, temperature, etc. in the refrigeration cycle will differ depending on the type of refrigerant sealed in the air conditioner. Therefore, the pressure and temperature of the refrigeration cycle at which the cooling / heating capacity and the operating efficiency are optimal are different. However, not only can not fully demonstrate the heating capacity, but also cause problems from the viewpoint of safety and reliability.
  • Fig. 10 shows a graph showing the temperature distribution of the heat exchanger due to the difference in the refrigerant.
  • the temperature change from the inlet to the outlet of the heat exchanger is the pressure loss.
  • Temperature gradient but almost constant.
  • the temperature gradient gradually increases from the inlet to the outlet of the heat exchanger due to the difference in boiling point of the mixed refrigerant in addition to the temperature gradient due to pressure loss. .
  • the indoor unit is dedicated to each refrigerant as in the conventional case, the single refrigerant air conditioner represented by R22 and the mixed refrigerant air conditioner represented by R407C are different. Different cooling temperatures maximize cooling and warming performance Therefore, the heat exchanger '1' method and path arrangement were changed.
  • FIG. 1 is a block Ll showing a row of paths Sd of a parallel-flow heat exchanger, and shows a path arrangement of the heat exchanger used in the case of exclusive use of R22. Since the temperature gradient of the refrigerant R22 is almost constant, the flow of the refrigerant is usually a parallel flow (counterflow during cooling) in order to increase the evaporative heat transfer performance.
  • FIG. 12 is a block diagram showing a path fid sequence of a counter-flow heat exchanger, and shows a path arrangement of the heat exchanger used in the case of K407Cf]. Since the R1 degree gradient of the refrigerant R 407 C is not constant, the condensation ripening performance changes greatly between the parallel flow and the convection. I'm going. (The arrows in the figure indicate the flow direction of the refrigerant.) Therefore, regardless of the difference in the heat transfer characteristics of the heat exchanger due to the refrigerant, the flow is countercurrent to the indoor heating to average the condensation characteristics. With this configuration, if the deterioration of the heat generation characteristics is compensated for by the performance increase of the heat transfer tubes or the control of the outdoor unit, the performance can be ensured by either refrigerant.
  • the refrigerant is combined with the outdoor unit 15a dedicated to R22 and the outdoor unit 15b dedicated to R407C using the heat exchanger of the indoor unit 14c.
  • control of the operating frequency of the compressor 6 and expansion valves attached to the outdoor units may be performed according to the outdoor unit.
  • the airflow of the outdoor fan which is an outdoor control device, is controlled according to the first outdoor unit connected to the unit or the second outdoor unit. This is desirable.
  • Fig. 13 shows the main configuration of the air conditioner, and outlines the control of the air conditioner.
  • RUN / STOP, COOL / Heating setting, temperature setting, Input to the indoor controller 4 from the remote control 22.
  • the room temperature control device 4 receives signals from temperature sensors 20 such as blow-off, suction, gas pipes, and liquid pipe thermistors provided in the room machine.
  • signals from temperature sensors 21 such as outside air, suction pipes, discharge pipes, and compressor thermistors provided in the outdoor unit are input to the outdoor control device 12. These input values are calculated, and the compressor 6, the fan 3 for the indoor unit, the fan 9 for the outdoor unit, the four-way valve 10, the expansion valve 18, and the solenoid valve 1 for the bypass circuit Control such as 9 is performed.
  • Fig. I4 shows a pair-type freezing cycle
  • Fig. 15 shows a multi-type freezing cycle, which will be described below.
  • Suction ⁇ - The value detected by the force sensor 23 is calculated by the control device 12, and the operating frequency of the compressor 6 is controlled so as to reach the target suction pressure. By controlling the operating frequency of the compressor 6, the refrigerant circulation amount is adjusted (excess refrigerant control), and the suction pressure is maintained.
  • the mixed refrigerant is used for the indoor heat exchanger when the single refrigerant is used.
  • the indoor control device and the outdoor control device are controlled so that the pressure value of the indoor heat exchanger becomes a value of 150 to 280 kPa.
  • the indoor unit and the indoor heat exchanger are dedicated to each, and for example, when R 407 C is used as the working refrigerant, the indoor heat exchanger and the like can withstand high pressure. Practical performance can be ensured in either case without using a structure.
  • the room expansion valve 5 calculates the values detected by the indoor liquid pipe temperature sensor 20 d and the internal gas pipe temperature sensor 20 c by the control device 12, and calculates the temperature of the indoor liquid pipe and the indoor gas pipe.
  • the opening degree of the inner expansion valve 5 is controlled so that the difference becomes the target temperature difference, and the circulation amount of the refrigerant is adjusted.
  • the outdoor expansion valve 18 calculates the value detected by the discharge pressure sensor 2 by the control device 12 and controls the opening degree of the outdoor expansion valve 18 so that the target discharge pressure is obtained.
  • the circulation of the refrigerant is adjusted by the degree of opening of the outdoor expansion valve 18, and the discharge pressure is maintained.
  • the control equipment 12 calculates the value of the discharge superheat detected by the discharge pipe sensor 21d, and adjusts the opening of the gas bypass solenoid valve 19 so that the discharge superheat of the target is reached. Control. The circulation amount of the refrigerant is adjusted by the opening of the solenoid valve 9.
  • the ffi degree setting value is determined by the force that sets the discharge superheat degree when using a single refrigerant and the discharge superheat degree when using a mixed refrigerant to the same value, or by a command for an outdoor unit only.
  • the indoor unit heat exchanger can be shared between the case where the working refrigerant is a single refrigerant and the case where the working refrigerant is a mixed refrigerant.
  • the set value of the freezing prevention temperature of the indoor unit be approximately I, regardless of the connected outdoor unit, in order to share the heat exchanger of the indoor unit.
  • the frequency control of the compressor 6, the opening degree control of the outdoor expansion valve 18 and the control of the solenoid valve 19 are performed by commands from the outdoor unit.
  • the opening degree is changed by controlling the solenoid valve 19 in the bypass circuit of the outdoor unit, and the control constants of the compressor 6 and the solenoid valve 19 are controlled by the control device of the outdoor unit. Record it on the recording medium of 12.
  • control constants and the like of the expansion valve 5 of the indoor unit are stored in the control unit 12 of the outdoor unit, and the opening degree of the expansion valve 5 of the indoor unit is controlled by a signal from the control unit 12.
  • the opening of the expansion valve 5 is controlled to the state of the refrigeration cycle most suitable for the outdoor unit.
  • multi-type air conditioners as well as pair-type air-conditioners.
  • the same indoor unit can be used if only the outdoor unit is replaced, and the following advantages can be obtained.
  • an air conditioner that can handle a plurality of refrigerants and can operate at least without changing an indoor unit, and a medium recording an operation control program thereof. it can.

Abstract

L'invention concerne un conditionneur d'air produisant un cycle réfrigération grâce à un compresseur, un échangeur de chaleur, et un robinet détendeur reliés en séquence. Ledit conditionneur d'air comporte une section intérieure (14c) permettant l'accouplement à celui-ci d'une première section extérieure (15a) utilisant un premier réfrigérant en tant que réfrigérant de travail et d'une seconde section extérieure (15b) utilisant un second réfrigérant de travail différent du premier, un robinet détendeur (5) prévu dans la section intérieure (14c) et conçu pour être commandé selon les instructions des sections extérieures. La commande du cycle de réfrigération est assurée par la modification des valeurs de commande en fonction des sections extérieures reliées à la section intérieure, ce qui permet de produire un conditionneur d'air pouvant fonctionner avec plusieurs réfrigérants sans qu'il soit nécessaire de changer la section intérieure. Ledit conditionneur comporte également un support dans lequel des programmes de commande sont mémorisés.
PCT/JP1996/002716 1996-09-20 1996-09-20 Conditionneur d'air et support contenant un programme de commande de fonctionnement associe WO1998012486A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP1996/002716 WO1998012486A1 (fr) 1996-09-20 1996-09-20 Conditionneur d'air et support contenant un programme de commande de fonctionnement associe
JP51447698A JP3952510B2 (ja) 1996-09-20 1996-09-20 空気調和機及びその運転制御プログラムを記録した媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1996/002716 WO1998012486A1 (fr) 1996-09-20 1996-09-20 Conditionneur d'air et support contenant un programme de commande de fonctionnement associe

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WO1998012486A1 true WO1998012486A1 (fr) 1998-03-26

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
WO2017109906A1 (fr) * 2015-12-24 2017-06-29 三菱電機株式会社 Climatiseur
WO2017199683A1 (fr) * 2016-05-20 2017-11-23 三菱重工サーマルシステムズ株式会社 Climatiseur et procédé de commande de climatiseur

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220397312A1 (en) * 2021-06-09 2022-12-15 LGL France S.A.S. Counter-current flow in both ac and hp modes for part load optimization

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Publication number Priority date Publication date Assignee Title
JPH01314841A (ja) * 1988-06-15 1989-12-20 Toshiba Corp 空気調和機
JPH0373868U (fr) * 1989-11-24 1991-07-25
JPH06193981A (ja) * 1992-12-22 1994-07-15 Hitachi Ltd 冷凍装置
JPH07253250A (ja) * 1994-03-15 1995-10-03 Toshiba Corp 冷凍サイクル制御装置
JPH08121888A (ja) * 1994-10-20 1996-05-17 Hitachi Ltd 冷凍装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01314841A (ja) * 1988-06-15 1989-12-20 Toshiba Corp 空気調和機
JPH0373868U (fr) * 1989-11-24 1991-07-25
JPH06193981A (ja) * 1992-12-22 1994-07-15 Hitachi Ltd 冷凍装置
JPH07253250A (ja) * 1994-03-15 1995-10-03 Toshiba Corp 冷凍サイクル制御装置
JPH08121888A (ja) * 1994-10-20 1996-05-17 Hitachi Ltd 冷凍装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017109906A1 (fr) * 2015-12-24 2017-06-29 三菱電機株式会社 Climatiseur
GB2561096A (en) * 2015-12-24 2018-10-03 Mitsubishi Electric Corp Air conditioner
GB2561096B (en) * 2015-12-24 2020-09-23 Mitsubishi Electric Corp Air-conditioning apparatus
WO2017199683A1 (fr) * 2016-05-20 2017-11-23 三菱重工サーマルシステムズ株式会社 Climatiseur et procédé de commande de climatiseur
JP2017207256A (ja) * 2016-05-20 2017-11-24 三菱重工サーマルシステムズ株式会社 空気調和装置及び空気調和装置の制御方法

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