EP1691139A2 - System zum Überprüfen einer Klimaanlage - Google Patents

System zum Überprüfen einer Klimaanlage Download PDF

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Publication number
EP1691139A2
EP1691139A2 EP05100920A EP05100920A EP1691139A2 EP 1691139 A2 EP1691139 A2 EP 1691139A2 EP 05100920 A EP05100920 A EP 05100920A EP 05100920 A EP05100920 A EP 05100920A EP 1691139 A2 EP1691139 A2 EP 1691139A2
Authority
EP
European Patent Office
Prior art keywords
valve
cooling
heating
opened
indoor units
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05100920A
Other languages
English (en)
French (fr)
Other versions
EP1691139B1 (de
EP1691139A3 (de
Inventor
Su Ho Jo
Gyoo Ha Jung
Hyo Suk Kim
Woo Hyun Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1691139A2 publication Critical patent/EP1691139A2/de
Publication of EP1691139A3 publication Critical patent/EP1691139A3/de
Application granted granted Critical
Publication of EP1691139B1 publication Critical patent/EP1691139B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F25B2313/007—Compression machines, plants or systems with reversible cycle not otherwise provided for three pipes connecting the outdoor side to the indoor side with multiple indoor 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating

Definitions

  • the present invention relates to a method for confirming correct installation of an air conditioning system, which comprises an outdoor unit and a plurality of indoor units, comprising operating a single indoor unit in heating mode, determining whether the temperature at the operated indoor unit changes by more than a predetermined amount and, if the temperature change does not exceed said predetermined amount, generating an indication that the air conditioning system has not been installed correctly.
  • the present invention also relates to a method for confirming correct installation of an air conditioning system, which comprises an outdoor unit and a plurality of indoor units, comprising operating a single indoor unit in cooling mode, determining whether the temperature at the operated indoor unit changes by more than a predetermined amount and, if the temperature change does not exceed said predetermined amount, generating an indication that the air conditioning system has not been installed correctly.
  • a multi air conditioning system comprises an outdoor unit, a plurality of indoor units, connected in parallel and to the outdoor unit, communication lines connecting the outdoor unit with the indoor units, a power line, refrigerant pipes and electric valves installed in the refrigerant pipes.
  • the multi air conditioning system when the system is initially installed, a worker connects the outdoor unit and the indoor units by the communication lines, the power line and the refrigerant pipes and inputs the number of refrigerant pipes connected to the indoor units using input means (for example, rotary switches) provided on the indoor units, thereby informing an outdoor unit microcomputer or indoor unit microcomputers of the number of refrigerant pipes connected to respective indoor units.
  • input means for example, rotary switches
  • the multi air conditioning system is disadvantageous in that the system comprises the plural refrigerant pipes and the plural indoor units connected to the refrigerant pipes and it is difficult to determine whether or not the refrigerant pipes and the indoor units are connected on the basis of the data regarding the number of refrigerant pipes input by a worker using the input means.
  • KR-A-1991-0008349 discloses a method of inspecting the refrigerant pipes of the multi air conditioning system in detail.
  • a method is characterised in that all the indoor units are operated concurrently in cooling mode prior to operation said single indoor unit in heating mode.
  • a method, according to the second aspect of the present invention is characterised in that all the indoor units are operated concurrently in heating mode prior to operation said single indoor unit in cooling mode.
  • a multi air conditioning system according to the present invention comprises an outdoor unit 10, first to fourth indoor units 20a, 20b, 20c, 20d, connected in parallel with each other and to the outdoor unit 10, and a mode changer 30 for changing the operating mode of the first to fourth indoor units 20a, 20b, 20c, 20d, e.g. from cooling mode to heating mode and from heating mode to cooling mode.
  • the outdoor unit 10 includes a four-way value 12 for setting the flow direction of the refrigerant discharged from compressors 11, an outdoor heat exchanger 13 for achieving heat exchange by means of outdoor air entering into the outdoor unit 10, an outdoor electric valve 14 and a receiver tank 15 and an accumulator 16 for separating the liquid and gaseous components of the refrigerant from each other.
  • the refrigerant flows between the first to fourth indoor units 20a, 20b, 20c, 20d and the outdoor unit 10 through a high-pressure gas pipe 17, a low-pressure gas pipe 18, and a high-pressure liquid pipe 19.
  • the low-pressure gas pipe 18 is connected to the inlets of the compressors 11 through the accumulator 16, the outdoor heat exchanger 13 is connected in series to the outdoor electric valve 14, and the high-pressure liquid pipe 19 is connected to the outdoor electric valve 14 through the receiver tank 15.
  • a bypass valve 41 a serving as a flow control valve, and a non-return valve 41 b are connected in parallel with the outdoor electric valve 14. Liquid refrigerant, discharged from the outdoor heat exchanger 13, passes through the bypass valve 41a and the non-return valve 41b, bypassing the outdoor electric valve 14, during cooling operation, and the bypass valve 41a is closed and the refrigerant passes through the outdoor electric valve 14 during heating operation.
  • a high-pressure branch pipe 42 which branches from the high-pressure gas pipe 17, is located between the four-way valve 12 and the high-pressure liquid pipe 19 and an electric valve 43a, serving as a switching valve, and a non-return valve 43b, for preventing back flow of the refrigerant discharged from the high-pressure gas pipe 17, are installed in the high-pressure branch pipe 42.
  • Another non-return valve 44 for preventing the back flow of refrigerant, is installed between the four-way valve 12 and the high-pressure liquid pipe 19.
  • the first to fourth indoor units 20a, 20b, 20c, 20d include respective ones of first to fourth indoor heat exchangers 21a, 21b, 21c, 21d, respective ones of first to fourth indoor electric valves 22a, 22b, 22c, 22d connected in series with respective ones of the first to fourth indoor heat exchangers 21 a, 21b, 21c, 21d, and first to fourth temperature sensors 37a, 37b, 37c, 37d, installed between respective ones of the first to fourth indoor units 20a, 20b, 20c, 20d and the mode changer 30.
  • the mode changer 30 includes first to fourth heating valves 31a, 31b, 31c, 31d installed in first to fourth high-pressure gas branch pipes 33a, 33b, 33c, 33d, which branch from the high-pressure gas pipe 17, and first to fourth cooling valves 32a, 32b, 32c, 32d, installed respectively in first to fourth low-pressure gas branch pipes 34a, 34b, 34c, 34d, which branch from the low-pressure gas pipe 18.
  • a valve set comprising the first heating valve 31a and the first cooling valve 32a is connected to a first refrigerant pipe 35a, connected to the first indoor heat exchanger 20a, and further valve sets comprising a respective heating valve and a respective cooling valve from the second to fourth heating valves 31b, 31c, 31d and the second to fourth cooling valves 32b, 32c, and 32d are respectively connected to second to fourth refrigerant pipes 35b, 35c, 35d.
  • the outdoor unit 10 further comprises an outdoor unit microcomputer 23 for controlling the outdoor unit 10.
  • the first to fourth indoor units 20a, 20b, 20c, 20d each include one of first to fourth indoor unit microcomputers 36a, 36b, 36c, 36d for controlling their operation.
  • the mode changer 30 further includes a mode changer microcomputer 38 for controlling the first to fourth cooling valves 32a, 32b, 32c, 32d and the first to fourth heating valves 31 a, 31 b, 31 c, 31 d.
  • a worker connects the outdoor unit 10, the indoor units 20a, 20b, 20c, 20d and the mode changer 30 using pipes, and inputs the numbers of the branch holes (not shown) of the mode changer 30, connected to the indoor units 20a, 20b, 20c, 20d, using input means.
  • the branch holes are holes, formed through the case of the mode changer 30, through which the pipes connecting the indoor units 20a, 20b, 20c, 20d to the heating valve-cooling valve sets pass, in the mode changer 30 and the number of branch holes is the same as the number of pipes passing through the branch holes and the number of heating valve-cooling valve sets, connected to the corresponding pipes. For example, if the first through hole is connected to the first indoor unit, the first pipe passes through the first branch hole and the first heating valve and the first cooling valve are connected to the first pipe.
  • a rotary switch may installed in each indoor unit and used to indicate the number of the through hole, to which the corresponding indoor unit is connected, thereby allowing the corresponding indoor unit microcomputer to obtain the number of the through hole (i.e. the number of the heating valve-cooling valve set and the number of the pipe), to which the corresponding indoor unit is connected. Furthermore, when the indoor unit microcomputer obtains the number of the through hole, to which the corresponding indoor unit is connected, the indoor unit microcomputer sends data to the mode converter microcomputer so that the mode converter microcomputer learns the address/identity of the indoor unit connected to the heating valve-cooling valve set.
  • the first indoor unit 20a is connected to the first heating valve-first cooling valve set and the second to fourth indoor units 20b, 20c, 20d are respectively connected to the second heating valve-second cooling valve set, the third heating valve-third cooling valve set and the fourth heating valve-fourth cooling valve set.
  • the temperatures around the indoor heat exchangers are measured by the temperature sensors 37a, 37b, 37c, 37d, and the mode changer 30 stands by until the measured temperatures have stabilized (S54).
  • the mode converter microcomputer 38 opens the first heating valve 31 a and closes the first cooling valve 32a (S56 and S58).
  • the increase of temperature around the first indoor heat exchanger 21 a is calculated from the temperatures measured by the temperature sensors 37a, 37b, 37c, 37d (S60). Since the designated time varies according to the system, it is preferable that the designated time is set to a time taken to sufficiently sense the increase of temperature.
  • the indoor unit the temperature of which has increased more than a reference range
  • the reference range serves to exclude the influence of factors, on the variation of temperatures, other than the change of the opened and closed states of the valves, and is set to a suitable value by experimentation.
  • step S62 it is determined that the pipe connection between the first indoor unit 20a and the first heating valve-first cooling valve set has failed, and a warning is given through a display (not shown) (S72).
  • the first indoor unit 20a is not connected to the first heating valve-first cooling valve set and another indoor unit is connected to the first heating valve-first cooling valve set.
  • a worker connects the outdoor unit 10, the indoor units 20a, 20b, 20c, 20d, and the mode changer 30 using pipes, and inputs the numbers of the branch holes of the mode changer 30, connected to the indoor units 20a, 20b, 20c, 20d (i.e., the numbers of the heating valve-cooling valve sets connected to the corresponding branch holes) using input means.
  • the temperatures around the indoor heat exchangers are measured by the temperature sensors 37a, 37b, 37c, 37d, and the mode changer 30 stands by until the measured temperatures have stabilized (S84).
  • the mode converter microcomputer 38 opens the first cooling valve 32a and closes the first heating valve 31a (S88) of the first heating valve-cooling valve set.
  • the decrease in temperature around the first indoor heat exchanger 21a is calculated from the temperatures measured by the temperature sensors 37a, 37b, 37c, 37d (S90). Since the designated time varies according to the system, it is preferable that the designated time is set to a time taken to sufficiently sense the decrease of temperature.
  • the indoor unit the temperature of which has decreased more than a reference range
  • the pipe connection between the first indoor unit 20a and the first heating valve-first cooling valve set is normal (S94).
  • the reference range serves to exclude the influence of factors, on the variation of temperatures, other than the change of the opened and closed states of the valves, and is set to a suitable value by experimentation.
  • step S92 it is determined that the pipe connection between the first indoor unit 20a and the first heating valve-first cooling valve set has failed, and a warning is given through a display (not shown) (S100 and S102).
  • the first indoor unit 20a is not connected to the first heating valve-first cooling valve set and another indoor unit is connected instead to the first heating valve- cooling valve set.
  • the present invention provides a multi air conditioning system, in which pipe connection is inspected using the variation of temperatures before and after the change of opened and closed states of heating valve-cooling valve sets, and a method for inspecting pipe connection of the multi air conditioning system, thereby shortening the time taken to detect the variation of temperatures and rapidly inspecting the pipe connection.
  • the multi air conditioning system of the present invention improves the reliability of inspecting the pipe connection.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)
EP05100920.7A 2004-08-16 2005-02-09 System zum Überprüfen einer Klimaanlage Active EP1691139B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040064243A KR101116679B1 (ko) 2004-08-16 2004-08-16 멀티 에어컨 시스템 및 멀티 에어컨 시스템의 배관연결점검방법

Publications (3)

Publication Number Publication Date
EP1691139A2 true EP1691139A2 (de) 2006-08-16
EP1691139A3 EP1691139A3 (de) 2010-12-22
EP1691139B1 EP1691139B1 (de) 2016-11-16

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EP05100920.7A Active EP1691139B1 (de) 2004-08-16 2005-02-09 System zum Überprüfen einer Klimaanlage

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EP (1) EP1691139B1 (de)
JP (1) JP3980601B2 (de)
KR (1) KR101116679B1 (de)
CN (1) CN100380058C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2137466A1 (de) * 2007-03-16 2009-12-30 LG Electronics Inc. Rohrabtastverfahren für eine klimaanlage
US11231216B2 (en) * 2017-01-10 2022-01-25 Samsung Electronics Co., Ltd. Air conditioner, control device thereof, and method of controlling the same

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KR101250550B1 (ko) * 2006-12-27 2013-04-09 엘지전자 주식회사 냉난방 동시형 멀티 공기조화기 및 그 배관설정방법
JP5609337B2 (ja) * 2010-07-07 2014-10-22 株式会社富士通ゼネラル マルチ型空気調和機
CN102486327B (zh) * 2010-12-02 2016-04-27 乐金电子(天津)电器有限公司 一种空调配管温度冷处理方法
CN102589969B (zh) * 2012-02-28 2013-07-31 合肥工业大学 评价变频空调器配管疲劳可靠性的方法
CN103308297B (zh) * 2013-05-31 2015-09-09 深圳麦克维尔空调有限公司 空调的配管的判定方法
JP6248878B2 (ja) * 2014-09-18 2017-12-20 株式会社富士通ゼネラル 空気調和装置
CN105066539B (zh) 2015-07-16 2018-07-10 广东美的暖通设备有限公司 多联机系统及其电子膨胀阀控制方法
KR102455076B1 (ko) * 2016-02-12 2022-10-14 엘지전자 주식회사 공기 조화기의 자동배관탐색장치 및 방법
CN110260453A (zh) * 2019-06-03 2019-09-20 广东美的暖通设备有限公司 加湿管路的匹配方法、装置及计算机可读存储介质
CN110529992A (zh) * 2019-09-09 2019-12-03 广东美的暖通设备有限公司 空调系统、空调系统的控制方法以及计算机可读存储介质
CN113551371B (zh) * 2021-07-31 2023-03-31 广东美的制冷设备有限公司 空调器的高低压阀状态检测方法、装置、空调器与介质

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JPH0297848A (ja) 1988-09-30 1990-04-10 Daikin Ind Ltd マルチ形空気調和機
KR910008349A (ko) 1989-10-31 1991-05-31 아오이 죠이찌 멀티에어콘 배선배관 확인방법
JP2002013777A (ja) 2000-06-28 2002-01-18 Sanyo Electric Co Ltd 空気調和装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2137466A1 (de) * 2007-03-16 2009-12-30 LG Electronics Inc. Rohrabtastverfahren für eine klimaanlage
EP2137466A4 (de) * 2007-03-16 2012-01-25 Lg Electronics Inc Rohrabtastverfahren für eine klimaanlage
US11231216B2 (en) * 2017-01-10 2022-01-25 Samsung Electronics Co., Ltd. Air conditioner, control device thereof, and method of controlling the same

Also Published As

Publication number Publication date
KR20060015862A (ko) 2006-02-21
EP1691139B1 (de) 2016-11-16
JP3980601B2 (ja) 2007-09-26
JP2006057993A (ja) 2006-03-02
CN1737443A (zh) 2006-02-22
EP1691139A3 (de) 2010-12-22
KR101116679B1 (ko) 2012-06-13
CN100380058C (zh) 2008-04-09

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