EP3054232A1 - Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme - Google Patents

Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme Download PDF

Info

Publication number
EP3054232A1
EP3054232A1 EP14870149.3A EP14870149A EP3054232A1 EP 3054232 A1 EP3054232 A1 EP 3054232A1 EP 14870149 A EP14870149 A EP 14870149A EP 3054232 A1 EP3054232 A1 EP 3054232A1
Authority
EP
European Patent Office
Prior art keywords
backup operation
time
air conditioning
compressors
display
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.)
Withdrawn
Application number
EP14870149.3A
Other languages
German (de)
English (en)
Other versions
EP3054232A4 (fr
Inventor
Takashi Hamachiyo
Takahiro Kato
Keisuke Mitoma
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP3054232A1 publication Critical patent/EP3054232A1/fr
Publication of EP3054232A4 publication Critical patent/EP3054232A4/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • F25B49/022—Compressor 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
    • 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
    • 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
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • 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
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers

Definitions

  • the present invention relates to a time display device, an air-conditioning system equipped with the same, a time display method, and a program.
  • Patent Document 1 discloses a technique by which a backup operation is performed in refrigerating equipment provided with two compressors, in which, if a certain anomaly is detected in the currently operating compressor during low power operation involving only one compressor, the operating compressor is stopped, and another compressor not in operation is started up.
  • Patent Document 1 Japanese Unexamined Patent Application Publication No. H02-248674A
  • Air conditioning by backup operation is managed by an outside unit of an air conditioning system, and a maintenance worker or the like who is a service provider responsible for the installation of the air conditioning system checks the state of backup operation by connecting a maintenance device to the outside unit.
  • the inside units are configured to be notified of the fact that air conditioning by backup operation is ongoing, allowing a user of the air conditioning system to confirm that backup operation is ongoing.
  • the backup operation is a function whereby the number of compressors to be used is reduced and the air conditioning system is operated for as long as possible using only operational compressors, and there are limits to how long the backup operation can continue. If the allowable time for backup operation is exceeded, the air conditioning system is stopped and the user cannot operate the air conditioning system until maintenance work is performed, resulting in a problem in that even though it is preferable that the user contact a maintenance worker as soon as possible after the air conditioning system has shifted to backup operation, the user fails to realize the urgency of the situation due to the fact that the air conditioning is ongoing and delays contacting the maintenance worker.
  • an object of the present invention is to provide a time display device that assists in alerting a user of the need for maintenance work and to assist in determining the order of priority for maintenance work, an air conditioning system provided with the time display device, a time display method, and a program.
  • the present invention provides the following means.
  • a first aspect of the present invention is a time display device for use in an air conditioning system that includes an outside unit with a plurality of compressors.
  • the time display device includes a detection means that detects that at least one of the compressors is inoperable; a time measuring means that measures a backup operation time corresponding to an elapsed time from the start of a backup operation in which air conditioning continues, using at least one of the compressors other than at least one of the compressors detected to be inoperable; and a display means that, if at least one of the compressors has been detected to be inoperable and the backup operation has been started, displays a remaining backup operation time calculated by subtracting the backup operation time from an allowable time for which air conditioning by the backup operation can continue.
  • the backup operation is started in which air conditioning continues, using the other compressor(s) besides the compressor(s) that has been detected to be inoperable.
  • the remaining backup operation time which is the remaining time for which air conditioning by backup operation can continue, is calculated by subtracting the backup operation time, which is the elapsed time from the start of the backup operation, from the allowable backup operation time, which is the period of time for which air conditioning can continue using the other compressor(s) besides the inoperable compressor(s), and this remaining backup operation time is displayed.
  • the compressor cannot be operated and the outside unit is stopped until maintenance work is performed thereon by a service provider, preventing the user from controlling the air conditioning system.
  • the remaining time for which air conditioning by backup operation can continue (remaining backup operation time) is displayed to the user of the air conditioning system such that the allowable time for the backup operation is not exceeded.
  • the user can be alerted that urgent action (such as maintenance by a service provider) is required when the remaining time is short.
  • the service provider can determine an order of priority among customers who have the air conditioning systems.
  • a remote control associated with an inside unit of the air conditioning system may include the display means.
  • the user of the air conditioning system can see the remaining backup operation time with ease by viewing the remote control of the inside unit.
  • the outside unit may include the display means.
  • the outside unit provided with the display means is capable of displaying the remaining backup operation time in a simple manner.
  • the display means provided on the outside unit be a device that displays an error code identifying the type of error in the operation state of the outside unit, or a device that displays the outside air temperature around the outside unit, for example.
  • an existing device can be used, simply by modifying the software.
  • Examples of the device that displays an error code or an outside air temperature include a seven-segment display.
  • the display means of the time display device prioritize the display of the remaining backup operation time and display the remaining backup operation time according to a display mode that indicates that the backup operation is ongoing.
  • the use of the display mode indicating that the backup operation is ongoing allows the user of the air conditioning system to be reliably notified of the fact that the backup operation is ongoing.
  • Examples of the display mode indicating that the backup operation is ongoing include a mode in which the display means maintains solid illumination when displaying the operation state under normal operation, but blinks when indicating the backup operation.
  • the display means of the time display device may display the backup operation time.
  • Displaying the backup operation time makes it possible to present the elapsed time from the start of the backup operation, and to alert the user of the air conditioning system.
  • the display means of the time display device may be provided with a plurality of illumination devices that display a predetermined time within the remaining backup operation time by being turned on/off, the remaining backup operation time being indicated by incrementally turning off each of the plurality of illumination devices.
  • the remaining backup operation time can easily be issued as a notification.
  • a second aspect of the present invention is an air conditioning system that includes any one of the above-mentioned time display devices.
  • a third aspect of the present invention is a time display method for use in an air conditioning system that includes an outside unit with a plurality of compressors.
  • the method includes a first step of detecting that at least one of the compressors is inoperable; a second step of measuring a backup operation time corresponding to an elapsed time from the start of a backup operation in which air conditioning continues, using at least one of the compressors other than at least one of the compressors detected to be inoperable; and a third step of displaying, if at least one of the compressors has been detected to be inoperable and the backup operation has been started, a remaining backup operation time calculated by subtracting the backup operation time from an allowable time for which air conditioning by the backup operation can continue.
  • a fourth aspect of the present invention is a time display program for use in an air conditioning system that includes an outside unit with a plurality of compressors.
  • the program allows a computer to execute a first process of detecting that at least one of the compressors is inoperable; a second process of measuring a backup operation time corresponding to an elapsed time from the start of a backup operation in which air conditioning continues, using at least one of the compressors other than at least one of the compressors detected to be inoperable; and a third process of displaying, if at least one of the compressors has been detected to be inoperable and the backup operation has been started, a remaining backup operation time calculated by subtracting the backup operation time from an allowable time for which air conditioning by the backup operation can continue.
  • the present invention exhibits the advantageous effect of assisting in alerting a user of the need for maintenance, and assisting in determination of the order of priority for maintenance work.
  • An air conditioning system 1 illustrated in FIG. 1 includes an outside unit 2 including a plurality of compressors 4a and 4b, inside units 3, and a time display device 10.
  • an example will be described in which the outside unit 2 is provided with two compressors, but there is no special limitation on the number of compressors.
  • the time display device 10 includes a detection unit (detection means) 11, a time measuring unit (time measuring means) 12, display units (display means) 13a and 13b, and a control unit 14.
  • a detection unit detection means
  • time measuring unit time measuring means
  • display units display means 13a and 13b
  • control unit 14 An example will be described in which, in the time display device 10 according to the present embodiment, the detection unit 11, the time measuring unit 12, the display unit 13a, and the control unit 14 are provided in the outside unit 2, and the display unit 13b is provided in the inside unit 3.
  • the display unit is indicated as “display unit 13" and the compressor is indicated as "compressor 4.”
  • the detection unit 11 detects malfunctions or the like in the compressors 4, detects that a compressor 4 is inoperable, and issues a notification to the control unit 14 indicating that the inoperable state of the compressor 4 has been detected.
  • the time measuring unit 12 measures the backup operation time corresponding to the elapsed time from the start of backup operation in which air conditioning continues, using a compressor 4 other than the compressor 4 that has been detected to be inoperable, and outputs the measurement results to the control unit 14.
  • the control unit 14 includes a central processing unit (CPU), a random access memory (RAM), and a computer-readable recording medium, which are not illustrated, for example.
  • CPU central processing unit
  • RAM random access memory
  • a processing sequence for implementing various functions to be described below is stored on a recording medium or the like in the form of a program, and the various functions described below are implemented by the CPU loading this program to the RAM or the like and executing information/calculation processing.
  • control unit 14 controls whether to start, stop, etc. the operation of the outside unit 2, and stops the outside unit 2 if it is determined that the remaining backup operation time is zero.
  • the control unit 14 stores information indicating the allowable time that air conditioning operation by backup operation can continue, calculates the remaining backup operation time by subtracting the backup operation time from the allowable time, and outputs the calculation results to the display units 13.
  • the allowable time is set to approximately 80 hours, for example, allowing the air conditioning system 1 to continue air conditioning for a few days after the air conditioning system 1 has shifted to backup operation.
  • the control unit 14 determines whether or not the remaining backup operation time is zero, continuing backup operation if the remaining time is not zero, and issuing a control instruction to stop the outside unit 2 if the remaining time is zero.
  • the display unit 13 displays the remaining backup operation time.
  • the display unit 13 may display the backup operation time measured in the time measuring unit 12.
  • the display unit 13a provided in the outside unit 2 is configured to display an error code for identifying the type of error in operation of the outside unit 2 as well as the outside air temperature, and a seven-segment display is used for the display unit 13a, for example.
  • FIG. 2 illustrates an example of a case where the display unit 13a provided in the outside unit 2 is a seven-segment display.
  • the display unit 13b may be provided in the remote control associated with the inside unit 3 of the air conditioning system 1.
  • FIG. 3 illustrates an example of the screen shown in the display including the display unit 13b provided in the remote control of the inside unit 3.
  • the display of the remote control shows a screen that says "Allowable Backup Operation Time: XX Hours Remaining," and indicates that the air conditioning system 1 is currently in backup operation, and that the remaining hours for which backup operation can continue is XX.
  • the air conditioning system 1 is in backup operation, and if the air conditioning system 1 is configured to stop when the remaining number of hours reaches zero, the remaining number of hours can convey the degree of urgency of the situation, encouraging the user to pay attention.
  • the user can communicate the remaining number of hours of backup operation, allowing the maintenance worker as a service provider to determine the order of priority for maintenance work based on the remaining number of hours even if the worker has received maintenance requests from multiple customers (users).
  • the display unit 13 prioritizes the display of the remaining backup operation time and displays the remaining backup operation time according to a display mode that indicates that the backup operation is ongoing.
  • the display unit 13 switches, by the press of a button or the like (not illustrated), between the display by solid illumination of an error code (a number set for each error type) and an outside air temperature in the seven-segment display.
  • an error code a number set for each error type
  • the remaining hours of the backup operation are displayed by blinking (with priority) even when the button has not been pressed, for example. In this manner, by adopting differing display modes between normal operation and backup operation, it is possible to display information with emphasis on the fact that backup operation is ongoing.
  • the compressors 4a and 4b are in operation, and the air conditioning system 1 including the outside unit 2 and the inside unit 3 is in air conditioning operation. It is detected that the compressor 4a has malfunctioned and that the compressor 4a is inoperable (step SA1 in FIG. 4 ). If it is detected that the compressor 4a is inoperable, the outside unit 2 continues air conditioning operation using only the other compressor 4b besides the compressor 4a in which a malfunction has been detected, and the air conditioning system 1 automatically shifts to backup operation.
  • the elapsed time from the start of backup operation using the compressor 4b is measured (step SA2 in FIG. 4 ).
  • the inside unit 3 receives notification that the air conditioning system 1 is in backup operation, information including that the air conditioning system 1 is in backup operation, and the remaining backup operation time, which is the remaining time for which backup operation can continue, is displayed on the remote control associated with the inside unit 3. Additionally, the remaining hours of backup operation are displayed in the seven-segment display of the outside unit 2 by blinking, which is the display mode indicating that the air conditioning system 1 is in backup operation (step SA3 in FIG. 4 ). It is determined whether or not the remaining backup operation time is zero (step SA4 in FIG. 4 ), and if the remaining time is not zero, the backup operation continues, and thus, the process flow returns to step SA2 in FIG. 4 . If the remaining backup operation time is zero, the outside unit 2 is stopped, and the air conditioning system 1 is stopped.
  • the counter which measures the backup operation time, of the time measuring unit 12 is reset every time maintenance work is performed
  • the configuration is not limited thereto, and a configuration may be adopted in which the counter is not reset and continues to increment its count even after maintenance work has been performed on the malfunctioning compressor 4a, for example.
  • the use of the incremented count without being reset makes it possible to use different settings depending on the number of times backup operation has been performed.
  • the air conditioning system 1 equipped with the time display device 10, the time display method, and the program of the present embodiment, if it is detected that at least one of the compressors 4 is inoperable, the air conditioning system 1 shifts to backup operation in which air conditioning continues, using the other compressor besides the compressor 4 that has been detected to be inoperable.
  • the remaining backup operation time which is the remaining time for which air conditioning by backup operation can continue, is calculated by subtracting the backup operation time, which is the elapsed time from the start of backup operation, from the allowable backup operation time, which is the period of time for which air conditioning can continue using the other compressor 4 besides the inoperable compressor 4, and this remaining backup operation time is displayed.
  • the compressor 4 cannot be operated and the outside unit is stopped until maintenance work is performed by a service provider, preventing the user from controlling the air conditioning system 1.
  • the remaining time for which air conditioning by backup operation can continue (remaining backup time) is displayed in a simple manner to the user of the air conditioning system 1 such that the allowable backup operation time is not exceeded. In this manner, if the remaining time is short, the user can be alerted that urgent action is required (such as maintenance by a service provider).
  • the service provider can determine an order of priority among customers who have the air conditioning systems.
  • the configuration has been described in which the display unit 13a provided in the outside unit 2 uses the seven-segment display, which displays an error code of the outside unit 2 as well as the outside air temperature, to display the remaining backup operation time, but the method for displaying the remaining backup operation time is not limited thereto.
  • the display unit includes a plurality of illumination devices (such as light emitting diodes (LEDs)) that display a predetermined time within the remaining backup operation time by being turned on/off, and the remaining backup operation time is indicated by incrementally turning off each of the plurality of illumination devices. Not only may each of the plurality of illumination devices be turned off incrementally, but the remaining time may be indicated by the positions where the lights are on/off.
  • illumination devices such as light emitting diodes (LEDs)

Landscapes

  • 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)
EP14870149.3A 2013-12-10 2014-11-11 Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme Withdrawn EP3054232A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013255298A JP6305745B2 (ja) 2013-12-10 2013-12-10 時間表示装置、それを備えた空気調和システム、及び時間表示方法並びにプログラム
PCT/JP2014/079882 WO2015087654A1 (fr) 2013-12-10 2014-11-11 Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme

Publications (2)

Publication Number Publication Date
EP3054232A1 true EP3054232A1 (fr) 2016-08-10
EP3054232A4 EP3054232A4 (fr) 2016-11-02

Family

ID=53370969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14870149.3A Withdrawn EP3054232A4 (fr) 2013-12-10 2014-11-11 Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme

Country Status (3)

Country Link
EP (1) EP3054232A4 (fr)
JP (1) JP6305745B2 (fr)
WO (1) WO2015087654A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110726231B (zh) * 2019-10-29 2020-10-02 珠海格力电器股份有限公司 空调的控制方法和装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381549A (en) * 1980-10-14 1983-04-26 Trane Cac, Inc. Automatic fault diagnostic apparatus for a heat pump air conditioning system
JPS5831A (ja) * 1981-06-24 1983-01-05 Mitsubishi Electric Corp 空気調和機の表示装置
JPS59217434A (ja) * 1984-04-13 1984-12-07 Matsushita Seiko Co Ltd 冷暖房機の制御装置
JPH02248674A (ja) 1989-03-22 1990-10-04 Daikin Ind Ltd 冷凍装置
JP3221232B2 (ja) * 1994-06-07 2001-10-22 ダイキン工業株式会社 ヒートポンプ式冷凍装置
JP3473336B2 (ja) * 1997-07-17 2003-12-02 三菱電機株式会社 空気調和装置
JP2002228237A (ja) * 2001-02-05 2002-08-14 Tokyo Gas Co Ltd 空気調和装置
JP3427300B2 (ja) * 2001-09-11 2003-07-14 シャープ株式会社 空気調和機及び空気調和システム
JP3899993B2 (ja) * 2002-04-19 2007-03-28 株式会社デンソー 車両用空調装置
JP2005055116A (ja) * 2003-08-06 2005-03-03 Dainichi Co Ltd 機器の制御装置
JP2007064555A (ja) * 2005-08-31 2007-03-15 Sharp Corp 電気機器
KR100773803B1 (ko) * 2005-09-13 2007-11-06 엘지전자 주식회사 공기조화기의 제어 방법
JP5003162B2 (ja) * 2007-01-11 2012-08-15 ダイキン工業株式会社 空気調和機
KR100949789B1 (ko) * 2007-12-21 2010-03-30 엘지전자 주식회사 공기조화기의 제어 방법
JP5216842B2 (ja) * 2010-12-21 2013-06-19 三洋電機株式会社 空気調和装置

Also Published As

Publication number Publication date
EP3054232A4 (fr) 2016-11-02
JP6305745B2 (ja) 2018-04-04
JP2015114022A (ja) 2015-06-22
WO2015087654A1 (fr) 2015-06-18

Similar Documents

Publication Publication Date Title
US10240593B2 (en) Systems and methods of controlling pressure maintenance pumps and data logging pump operations
CN107314519B (zh) 一种空调器冷媒泄漏的判定方法及装置
US10230548B2 (en) Systems and methods for communicating with electric motors
EP2791926B1 (fr) Condensateur d'extrémité de ligne destiné à mesurer l'impédance de câblage de circuits de notification d'urgence
JP2007195392A (ja) デマンド監視制御装置
EP2498061A2 (fr) Système de surveillance pour dispositif électrique
JP2017053571A (ja) 冷媒漏えい検知器の点検システム、および空調システム
CN104034998A (zh) 一种定频空调内外机连接线接错的诊断方法及诊断系统
JP6117587B2 (ja) 加熱調理システム
EP3054232A1 (fr) Dispositif d'affichage de temps, système de climatisation équipé de celui-ci, procédé d'affichage de temps, et programme
CN107728047B (zh) 继电器检测方法、装置、继电器、存储介质及设备
JP2000121238A (ja) 家電機器の制御装置および冷蔵庫の制御装置
EP3214384A1 (fr) Télécommande pour système de climatisation
JP2014155385A (ja) 電気のスマートメータを用いた通電確認システム
US8001230B2 (en) Group management apparatus and group management system
JPWO2018122909A1 (ja) エレベーター制御システム
WO2015157715A1 (fr) Configuration et diagnostic sans fil de feux de balisage d'aérodrome
JP2013137149A (ja) 空気調和システム
US10248098B2 (en) PLC apparatus
KR101641259B1 (ko) 중앙 제어 장치, 중앙 제어 시스템 및 중앙 제어 방법
JP2019212042A (ja) 警報管理装置及び警報管理方法
US20160223237A1 (en) User interface for predictive failure analysis of a cooling device
JP6158063B2 (ja) 集中制御システム
JP5734157B2 (ja) 設備制御システム、電力管理システム、設備制御装置、及び設備制御方法
US10071255B2 (en) Monitoring system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160506

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

A4 Supplementary search report drawn up and despatched

Effective date: 20161004

RIC1 Information provided on ipc code assigned before grant

Ipc: F24F 11/02 20060101AFI20160927BHEP

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

17Q First examination report despatched

Effective date: 20180601

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: F25B 49/02 20060101ALI20190827BHEP

Ipc: F24F 11/30 20180101AFI20190827BHEP

INTG Intention to grant announced

Effective date: 20190918

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20200129