WO2025017902A1 - 機器更新方法及び動作確認装置 - Google Patents

機器更新方法及び動作確認装置 Download PDF

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Publication number
WO2025017902A1
WO2025017902A1 PCT/JP2023/026576 JP2023026576W WO2025017902A1 WO 2025017902 A1 WO2025017902 A1 WO 2025017902A1 JP 2023026576 W JP2023026576 W JP 2023026576W WO 2025017902 A1 WO2025017902 A1 WO 2025017902A1
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WIPO (PCT)
Prior art keywords
ventilation device
equipment
heat exchange
value
equipment update
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Pending
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PCT/JP2023/026576
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English (en)
French (fr)
Japanese (ja)
Inventor
悠太 戸田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to PCT/JP2023/026576 priority Critical patent/WO2025017902A1/ja
Priority to JP2025533826A priority patent/JPWO2025017902A1/ja
Publication of WO2025017902A1 publication Critical patent/WO2025017902A1/ja
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • This disclosure relates to an equipment updating method for updating ventilation equipment by replacing existing components with different parts, and an operation confirmation device used in this equipment updating method.
  • duct-type ventilation devices such as those disclosed in Patent Document 1 are used in living spaces such as homes and offices. Generally, duct-type ventilation devices are installed by hanging them from hanging bolts installed in the building and connected to ducts laid inside the building.
  • the ventilation system performs type 1 ventilation by exhausting dirty indoor air to the outside and supplying clean outdoor air into the room, and also performs total heat exchange between the exhausted indoor air and the supplied outdoor air via a heat exchanger, thereby purifying the indoor environment through ventilation while suppressing the decline in the indoor temperature and humidity environment and reducing the load on the air conditioner installed separately in the room.
  • Ventilation equipment is made up of a combination of components such as a blower, heat exchanger, filters, and control circuits, but each component deteriorates and its performance declines with use, so appropriate maintenance and inspection must be carried out to maintain the performance of the ventilation equipment.
  • components tend to become more prone to failure due to wear and tear, and there is a shortage of parts to maintain the components, making it necessary to update the equipment by replacing existing components with new ones.
  • ventilation equipment that has been installed for a long time often has lower performance than the latest models, even if the deterioration of the components is relatively small due to infrequent use.
  • Existing ventilation equipment has ducts that form intake and exhaust air ducts according to the installation environment.
  • the pressure loss in the intake and exhaust air ducts varies depending on the duct piping conditions, so the operating points of the intake and exhaust fans of the ventilation equipment vary depending on the installation environment.
  • the operating point refers to the combination of static pressure and air volume at which the static pressure generated by the intake and exhaust fans matches the pressure of the air flow resistance, which increases in proportion to the square of the air volume, called the system impedance. Therefore, when an existing ventilation equipment is hung from the ceiling and ducts are installed, if an equipment update is performed to replace the built-in fan of the existing ventilation equipment with a new one, the operating specifications of the ventilation equipment, including static pressure and air volume, will also change depending on the installation environment. For this reason, it was difficult to confirm whether the updated ventilation equipment had the correct specifications.
  • the present disclosure has been made in consideration of the above, and aims to provide an equipment update method that can update a ventilation device so that the ventilation device after the equipment update has the expected performance.
  • the equipment updating method disclosed herein comprises a step in which an operation confirmation device acquires measured values of specification values relating to the performance of a post-equipment updated ventilation device in which some of the components have been removed from the main body casing while the device is suspended from the ceiling and replacement parts and newly added parts have been installed.
  • the equipment updating method comprises a step in which the operation confirmation device determines whether the post-equipment updated ventilation device has the expected performance based on the measured values and preset standard values of the specification values of the post-equipment updated ventilation device, and a step in which the operation confirmation device displays the determination result of whether the post-equipment updated ventilation device has the designed performance.
  • the equipment updating method disclosed herein has the effect of enabling equipment updates for a ventilation device to be performed so that the ventilation device after the equipment update has the expected performance.
  • FIG. 1 is a cross-sectional view of a heat exchange ventilator that is a target for equipment renewal by the equipment renewal method according to the first embodiment.
  • FIG. 1 is a diagram showing a configuration of an operation checking device used in a device updating method according to a first embodiment;
  • FIG. 1 is a diagram showing an example of a fan table of an operation checking device used in a device updating method according to the first embodiment;
  • FIG. 1 is a diagram showing an example of a ventilation device table of an operation confirmation device used in a device updating method according to the first embodiment;
  • FIG. 1 is a diagram showing a hardware configuration of an operation checking device used in a device updating method according to a first embodiment;
  • Fig. 1 is a cross-sectional view of a heat exchange ventilator that is a target for equipment renewal by the equipment renewal method according to embodiment 1.
  • OA Outdoor Air
  • SA Secondary Air
  • RA Return Air
  • EA Exhaust Air
  • the arrows in Fig. 1 indicate the flow of air.
  • the heat exchange ventilator 50 is capable of taking in air from the space to be air-conditioned and discharging it outside the space to be air-conditioned, as well as taking in air from outside the space to be air-conditioned and supplying it to the space to be air-conditioned.
  • the space to be air-conditioned is, for example, a house, a building, or a warehouse.
  • the space to be air-conditioned is the interior of a building.
  • “outside air” corresponds to the supply air supplied from the heat exchange ventilator 50 to the interior
  • "indoor air” corresponds to the "exhaust air” discharged from the heat exchange ventilator 50 to the exterior.
  • the heat exchange ventilator 50 shown in FIG. 1 comprises a rectangular parallelepiped main casing 1.
  • the heat exchange ventilator 50 has a total heat exchange element 4 inside the main casing 1.
  • the heat exchange ventilator 50 is installed in a concealed state inside the ceiling.
  • the main casing 1 comprises an outside air inlet 7 and an exhaust outlet 10 arranged side by side on one end face, an air supply outlet 8 and an indoor air inlet 9 arranged side by side on the other end face opposite the one end face, an air supply duct 12 connecting the outside air inlet 7 and the air supply outlet 8 via the total heat exchange element 4, and an exhaust duct 11 connecting the indoor air inlet 9 and the exhaust outlet 10 via the total heat exchange element 4.
  • the heat exchange ventilation device 50 includes an intake air blower 2 that forms an intake air flow, an exhaust air blower 3 that forms an exhaust air flow, an intake air filter 5 and an exhaust air filter 6 that reduce the intrusion of dust into the total heat exchange element 4, an indoor temperature sensor 14 that detects the temperature inside the room, an outdoor temperature sensor 13 that detects the temperature outside the room, a control unit 15 that includes a control circuit 151 that controls the air volume of the intake air blower 2 and the exhaust air blower 3, and a remote controller 16 that is connected to the control unit 15 via a wire, is placed inside the room, and issues commands to the control unit 15 and performs various settings.
  • the intake air blower 2 and the exhaust air blower 3 will be referred to as blower 20 when there is no distinction between them.
  • the air volume notches of the heat exchange ventilation device 50 have two stages: a weak notch and a strong notch.
  • the air volume notches of the heat exchange ventilation device 50 are not limited to two stages, and may have three or more stages.
  • An air volume command value corresponding to each air volume notch is determined in advance, and when the user selects one of the air volume notches, the control unit 15 drives the control circuit 151 with the air volume command value corresponding to the selected air volume notch, thereby controlling the supply air blower 2 and the exhaust air blower 3.
  • FIG. 2 is a diagram showing the configuration of an operation confirmation device used in the equipment update method according to the first embodiment.
  • the operation confirmation device 60 includes an information acquisition unit 61, a performance determination unit 62, a table storage unit 63, a display processing unit 64, and a display unit 65.
  • the operation confirmation device 60 is connected to the heat exchange ventilation device 50, a vibration meter 71, and a sound level meter 72 when performing an equipment update.
  • the information acquisition unit 61 acquires information on the ventilation performance and other performance of the heat exchange ventilator 50.
  • the information acquired by the information acquisition unit 61 includes the motor current and motor rotation speed of the intake air blower motor (not shown) constituting the intake air blower 2 and the exhaust air blower motor (not shown) constituting the exhaust air blower 3, as well as the current supplied to the heat exchange ventilator 50, data on the power consumption of the heat exchange ventilator 50, the vibration value and noise value of the heat exchange ventilator 50, and the air volume command value at that time, when the heat exchange ventilator 50 after the equipment update is test-run in a suspended state.
  • the information acquisition unit 61 acquires from a vibration meter 71 vibration values detected by a vibration pickup installed in advance on the heat exchange ventilation device 50.
  • the information acquisition unit 61 also acquires noise values from a sound level meter 72 installed in advance at a preset distance from the heat exchange ventilation device 50.
  • the user of the operation checking device 60 may input the vibration value and noise value to the operation checking device 60 based on the measurement values of the vibration meter 71 and the sound level meter 72 without connecting the vibration meter 71 and the sound level meter 72 to the operation checking device 60.
  • the performance determination unit 62 determines whether the performance of the heat exchange ventilator 50, which is the subject of the equipment update, after the equipment update is the expected ventilation performance.
  • the performance determined by the performance determination unit 62 is the static pressure P and air volume Q of the heat exchange ventilator 50.
  • the performance determined by the performance determination unit 62 may include at least one of the current value, power value, noise value, and vibration value in addition to the static pressure P and air volume Q of the heat exchange ventilator 50.
  • the table storage unit 63 has a blower table 631 and a ventilation device table 632.
  • the blower table 631 is a table showing the characteristics of the blower 20 to be newly installed in the heat exchange ventilation device 50 as the intake air blower 2 or exhaust air blower 3 when updating the equipment of the heat exchange ventilation device 50, and the air volume command value and the individual specification values of the blower 20 are associated with each other at loads corresponding to various pipe resistances.
  • the blower table 631 includes information showing the relationship between the air volume command value, the motor current I and the motor rotation speed N, and the relationship between the static pressure P and the air volume Q at loads corresponding to various pipe resistances.
  • the ventilation device table 632 shows the specification values of the heat exchange ventilation device 50 when the heat exchange ventilation device 50 is operated at an arbitrary air volume notch.
  • the specification values in the blower table 631 include the motor rotation speed N, motor current I, static pressure P, and air volume Q, and are created by measuring in advance the motor current I and motor rotation speed N of the intake air blower motor or exhaust air blower motor when the intake air blower motor (not shown) constituting the intake air blower 2 or the exhaust air blower motor (not shown) constituting the exhaust air blower 3 is operated alone for each air volume command value under loads corresponding to various pipeline resistances, as well as the static pressure P and air volume Q generated by the intake air blower 2 or the exhaust air blower 3 at that time.
  • the blower table 631 is data in which the air volume command value, motor current I, motor rotation speed N, static pressure P, and air volume Q are mutually associated under loads corresponding to various pipeline resistances.
  • the static pressure P and air volume Q generated by the heat exchange ventilation device 50 can be indirectly and uniformly determined based on the air volume command value and the motor rotation speed N, or based on the air volume command value and the motor current I.
  • the user of the operation confirmation device 60 checks, based on the nameplate, whether the heat exchange ventilator 50 for which the equipment update is to be performed is a compatible model for the equipment update method and whether the equipment update has not yet been performed. If the heat exchange ventilator 50 for which the equipment update is to be performed is not a compatible model for the equipment update method, or if the equipment update has already been performed, the equipment update of the heat exchange ventilator cannot be performed by applying the equipment update method according to the first embodiment, so the equipment update of the heat exchange ventilator is stopped by applying the equipment update method according to the first embodiment.
  • the user of the operation confirmation device 60 selects and orders alternative parts to be replaced with existing parts and newly installed additional parts to be installed as a result of the equipment update.
  • parts to be replaced with alternative parts include the intake air blower 2, exhaust air blower 3, total heat exchange element 4, and control circuit 151. If there are multiple new specifications that can be realized by the equipment update, one of the possible new specifications may be selected and an order may be placed for the part to replace the existing part. If a new function is added, and the existing remote controller 16 used by the user for remote operation does not support the new function to be added, the remote controller 16 that supports the new function is also considered to be a replacement part. Note that the main body casing 1 is not included in the parts to be replaced. In other words, equipment updates that involve replacement of the main body casing 1 are not subject to the equipment update method according to the first embodiment.
  • control circuit 151 When replacing the control circuit 151 due to an equipment update, it is also possible to add a control function equivalent to that of the latest model by adding sensors that were not installed before the equipment update. For example, by replacing the control circuit 151 and adding a carbon dioxide sensor and a humidity sensor, it becomes possible to control the air volume based on the carbon dioxide concentration and humidity.
  • the user of the operation confirmation device 60 installs the replacement parts and newly added parts. Since the main casing 1 is not included in the parts to be replaced and will be reused, some of the components are removed from the main casing 1 and the replacement parts and newly added parts are installed while the heat exchange ventilation device 50 is still suspended from the ceiling, without lowering it. The replacement work is also performed while the intake duct through which the intake air passes and the exhaust duct through which the exhaust air passes, which are connected to the main casing 1 of the heat exchange ventilation device 50, remain connected. For this reason, the intake duct and the exhaust duct are not included in the parts to be replaced and will be reused. The replacement parts and newly added parts to achieve the new specifications are attached to the main casing 1 before the equipment update using attachment parts, additional screws, etc. as necessary.
  • the user of the operation confirmation device 60 judges whether the heat exchange ventilator 50 after the equipment update has the expected performance by using the operation confirmation device 60.
  • the user of the operation confirmation device 60 performs a trial run of the heat exchange ventilator 50 after the equipment update with the heat exchange ventilator 50 installed on a ceiling and the air supply duct and the exhaust duct connected.
  • the parts to be replaced with existing parts due to the equipment update and the parts to be newly installed are inspected before shipping, but in order to prevent a decrease in performance of the heat exchange ventilator 50 due to improper equipment update work on site or deterioration of parts not to be replaced, it is confirmed whether the performance of the heat exchange ventilator 50 after the equipment update is as expected.
  • the equipment update method according to the first embodiment is applied to end the equipment update of the heat exchange ventilator. The details of the process of judging whether the performance of the heat exchange ventilator 50 after the equipment update is as expected will be described later.
  • the user of the operation confirmation device 60 will display the updated equipment on the heat exchanger ventilator 50 for which the equipment update has been completed.
  • the updated equipment can be displayed by replacing the nameplate or by attaching a sticker indicating that the equipment has been updated to the main body casing 1.
  • a sticker indicating that the equipment has been updated can also be attached to the remote controller 16, allowing the user of the heat exchanger ventilator 50 to easily recognize that the new function is available.
  • FIG. 3 is a flowchart showing the process for determining whether the performance of the heat exchange ventilator after the equipment update is as expected in the equipment update method according to embodiment 1.
  • the information acquisition unit 61 acquires the measured values of the specifications of the heat exchange ventilator 50 after the equipment update. For example, the information acquisition unit 61 acquires the motor current I and motor rotation speed N of the motor that drives the blower 20. The information acquisition unit 61 also acquires the airflow command value of the heat exchange ventilator 50. The information acquisition unit 61 also acquires the current value, power value, noise value, background noise value, and vibration value of the heat exchange ventilator 50.
  • step S42 the performance determination unit 62 determines whether the heat exchange ventilator 50 after the equipment update has the expected performance based on the information acquired by the information acquisition unit 61.
  • the performance determination unit 62 refers to the blower table 631, and determines whether the supply air blower 2 and the exhaust air blower 3 are operating within the range of the standard values set in advance according to the load on the site based on whether the measured values of the motor current I and the motor rotation speed N at an arbitrary air volume command value are within the range of the motor current I and the motor rotation speed N at the corresponding air volume command value in the blower table 631.
  • the static pressure P and the air volume Q required in the new specifications can be realized by the blower 20, and therefore the static pressure P and the air volume Q of the heat exchange ventilator 50 are determined to be within the range of the standard values.
  • FIG. 4 is a diagram showing an example of a blower table of an operation confirmation device used in the equipment updating method of embodiment 1.
  • the blower table 631 includes first data 631a showing the relationship between the motor current I and the motor rotation speed N, and second data 631b showing the relationship between the static pressure P and the air volume Q.
  • the thick solid line is the median value of the strong notch
  • the dashed line is the upper limit value of the strong notch
  • the dashed double-dashed line is the lower limit value of the strong notch.
  • the thin solid line is the median value of the weak notch.
  • the performance determination unit 62 considers that the heat exchange ventilator 50 after the equipment upgrade is operating within the range of the standard values.
  • the performance evaluation unit 62 regards the static pressure P and air volume Q corresponding to the combination of the motor current I and the motor rotation speed N that are within the standard values as the static pressure P and air volume Q of the operating point.
  • the operating point indicates a combination of static pressure P and air volume Q at which the static pressure P generated by the heat exchange ventilation device 50 matches the pressure of the airflow resistance that increases in proportion to the square of the air volume Q, called the system impedance.
  • the curve AB in the second data 631b is the static pressure air volume characteristic line at the strong notch
  • the curve A'B' is the static pressure air volume characteristic line at the weak notch.
  • the standard deviation ⁇ I indicating the measurement accuracy of the motor current I and the standard deviation ⁇ N indicating the measurement accuracy of the motor rotation speed N may be experimentally determined in advance and stored, and the motor current I and motor rotation speed N in the standard value table may be converted to have the same standard deviation using the ratio of ⁇ I to ⁇ N.
  • the motor current I and motor rotation speed N actually measured on the converted table may be compared with the median of the standard values, and the static pressure P and air flow Q corresponding to the motor current I and motor rotation speed N of the median of the standard values that are closest may be regarded as the static pressure P and air flow Q of the operating point.
  • the point where the line extending either the motor rotation speed N or the current value intersects with the median of the standard value can be regarded as the operating point without correction based on the ratio of ⁇ I to ⁇ N.
  • the performance determination unit 62 refers to the ventilation device table 632 and finds the standard values of the heat exchange ventilation device 50 specifications that correspond to the air volume Q of the estimated operating point. The performance determination unit 62 then compares the measured specifications of the heat exchange ventilation device 50 with the standard values and determines whether the heat exchange ventilation device 50 has the expected performance.
  • step S43 the display processing unit 64 displays on the display unit 65 the result of the determination as to whether the static pressure P and air volume Q of the heat exchange ventilation device 50 are within the range of the standard values, i.e., the static pressure P and air volume Q at the operating point, and the result of the determination as to whether the heat exchange ventilation device 50 has the expected performance.
  • the display processing unit 64 may display only the result of the determination as to whether the static pressure P and air volume Q of the heat exchange ventilation device 50 are within the range of the standard values on the display unit 65.
  • the display processing unit 64 may also display on the display unit 65 the result of the determination as to whether the static pressure P and air volume Q of the heat exchange ventilation device 50 are within the range of the standard values, and the static pressure P and air volume Q at the operating point.
  • the display processing unit 64 displays the result of the determination as to whether the current value, power value, noise value, and vibration value of the heat exchange ventilation device 50 are within the range of the standard values.
  • the user of the operation confirmation device 60 can determine whether the performance of the heat exchange ventilator 50 after the equipment update is as expected. In addition, by checking the information displayed on the display unit 65, the user of the operation confirmation device 60 can determine whether the current value, power value, noise value, and vibration value, which are other performances besides the ventilation performance of the heat exchange ventilator 50 after the equipment update, are as expected.
  • the equipment updating method uses an operation checking device 60 to check whether the heat exchanger ventilator 50 after the equipment update has the expected performance during a trial run with the heat exchanger ventilator 50 installed suspended from the ceiling and with the air intake duct and exhaust duct connected, so that the performance of the heat exchanger ventilator 50 after the equipment update can be made to be as expected. Furthermore, the equipment updating method according to the first embodiment allows some of the components to be removed from the main body casing 1 and replacement parts and newly added parts to be installed without lowering the heat exchanger ventilator 50, while it is installed suspended from the ceiling and with the air intake duct and exhaust duct connected, so that the room in which the heat exchanger ventilator 50 is installed can be used even during the equipment updating work.
  • Some of the components can be removed from the main casing 1 and replacement parts and new additional parts can be installed without lowering the heat exchange ventilation device 50, and can be installed while the air intake duct and exhaust duct are still connected, eliminating the need to lower the ceiling or reinstall the ceiling suspension bolts, and eliminating the need to secure space for these operations. Furthermore, not only the main casing 1 but also the air intake duct and exhaust duct connected to the main casing 1 can be reused after equipment upgrades, so there is no need to re-pipe the ducts when upgrading the heat exchange ventilation device 50.
  • the magnitude of the load in the installation environment can be obtained from the static pressure P and air volume Q at the operating point of the heat exchange ventilator 50 after the equipment update that have been estimated.
  • the static pressure P PRE and air volume Q PRE at the operating point of the blower 20 before the equipment update under the same load can be obtained by storing the blower table 631 of the blower 20 before the equipment update that has been experimentally measured in advance in the table storage unit 63.
  • the display processing unit 64 may simultaneously display on the display unit 65 the static pressure P PRE and air volume Q PRE of the blower 20 before the equipment update and the static pressure P POS and air volume Q POS of the blower 20 after the equipment update.
  • an inspection terminal provided with the information acquisition unit 61 and the display unit 65 and a management server provided with the performance determination unit 62, the table storage unit 63, and the display processing unit 64 may be connected to a network.
  • the information acquired by the inspection terminal is sent to the management server to determine whether or not the heat exchange ventilation device 50 has the expected performance, and the management server sends the determination result to the inspection terminal, and the inspection terminal displays the determination result as to whether or not the heat exchange ventilation device 50 has the expected performance.
  • FIG. 6 is a diagram showing the hardware configuration of an operation checking device used in the device update method according to the first embodiment.
  • the operation checking device 60 is realized by a computer system including a processor 91 that executes various processes, a memory 92 that is a main memory, and a storage device 93 that stores information.
  • the processor 91 may be a calculation means such as an arithmetic unit, a microprocessor, a microcomputer, a CPU (Central Processing Unit), or a DSP (Digital Signal Processor).
  • the memory 92 may be a non-volatile or volatile semiconductor memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an EPROM (Erasable Programmable Read Only Memory), or an EEPROM (registered trademark) (Electrically Erasable Programmable Read Only Memory).
  • the storage device 93 stores a program for executing a process to determine whether the heat exchange ventilator 50 after the equipment update has the expected performance.
  • the above computer system realizes the functions of the operation confirmation device 60 by the processor 91 reading into the memory 92 the programs stored in the storage device 93 and corresponding to the processing of each component, and executing them.
  • the memory 92 is also used as a temporary memory for each processing executed by the processor 91.
  • the programs executed by the processor 91 may be provided in a state stored in a storage medium, or may be provided via a network.
  • the target of the equipment updating method may be any ventilator to which a duct is connected, and it is also possible to implement the equipment updating method on a ventilator that only ventilates without performing heat exchange.
  • the noise measurement value during trial operation is used as the noise value as is, but it is also possible to use an actual noise value that eliminates the influence of background noise, which is noise from the surrounding environment, by measuring the noise value during trial operation and the background noise value when operation is stopped, and calculating the actual noise value by subtracting the background noise value from the noise value during trial operation.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
PCT/JP2023/026576 2023-07-20 2023-07-20 機器更新方法及び動作確認装置 Pending WO2025017902A1 (ja)

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PCT/JP2023/026576 WO2025017902A1 (ja) 2023-07-20 2023-07-20 機器更新方法及び動作確認装置
JP2025533826A JPWO2025017902A1 (https=) 2023-07-20 2023-07-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10185274A (ja) * 1996-12-19 1998-07-14 Rinnai Corp 空気調和機の自動試運転装置
JP2011007483A (ja) * 2009-05-29 2011-01-13 Daikin Industries Ltd 暖房専用空気調和装置
JP2011141096A (ja) * 2010-01-08 2011-07-21 Mitsubishi Electric Corp 空調システム診断装置
JP2021060134A (ja) * 2019-10-03 2021-04-15 三菱電機株式会社 制御装置及び制御方法
WO2022172452A1 (ja) * 2021-02-15 2022-08-18 三菱電機株式会社 データ処理装置及びデータ処理方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10185274A (ja) * 1996-12-19 1998-07-14 Rinnai Corp 空気調和機の自動試運転装置
JP2011007483A (ja) * 2009-05-29 2011-01-13 Daikin Industries Ltd 暖房専用空気調和装置
JP2011141096A (ja) * 2010-01-08 2011-07-21 Mitsubishi Electric Corp 空調システム診断装置
JP2021060134A (ja) * 2019-10-03 2021-04-15 三菱電機株式会社 制御装置及び制御方法
WO2022172452A1 (ja) * 2021-02-15 2022-08-18 三菱電機株式会社 データ処理装置及びデータ処理方法

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