WO2015045298A1 - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
WO2015045298A1
WO2015045298A1 PCT/JP2014/004650 JP2014004650W WO2015045298A1 WO 2015045298 A1 WO2015045298 A1 WO 2015045298A1 JP 2014004650 W JP2014004650 W JP 2014004650W WO 2015045298 A1 WO2015045298 A1 WO 2015045298A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
air conditioner
unit
display
outdoor unit
Prior art date
Application number
PCT/JP2014/004650
Other languages
French (fr)
Japanese (ja)
Inventor
横溝　剛志
遼太 須原
高幹 山本
智雄 桝田
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2015045298A1 publication Critical patent/WO2015045298A1/en

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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
    • 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
    • F24F11/56—Remote control
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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

Definitions

  • the present invention relates to an air conditioner that includes an outdoor unit and an indoor unit and performs a refrigeration cycle.
  • Patent Document 1 discloses an air conditioner including an indoor memory and an outdoor memory that store the types of refrigerants that can be used in the indoor unit and the outdoor unit, respectively. And according to this, even if there is no display label, the refrigerant used can be easily and reliably confirmed, and the mismatch between the refrigerant used and the residual refrigerant and the injected refrigerant between the indoor unit and the outdoor unit can be confirmed. It is described that it can be prevented.
  • the refrigerant used can be displayed on the liquid crystal display unit of the remote controller.
  • the main purpose is to check the refrigerant used at the time of installation of the air conditioner.When repair work is required, a predetermined operation is required until the refrigerant is displayed on the LCD display of the remote control. is necessary. Therefore, the conventional air conditioner disclosed in Patent Document 1 has room for improvement in this regard.
  • the present invention has been made in view of such a point, and an object of the present invention is to make a user surely grasp the refrigerant used in the refrigerant circuit when an abnormality occurs in the refrigerant circuit. .
  • the first aspect of the present disclosure is provided to be able to communicate with the refrigerant circuit (20) provided with the outdoor unit (11) and the indoor unit (12), and the outdoor unit (11) and the indoor unit (12).
  • An air conditioner including a remote controller (30) having a display screen (31), wherein the outdoor unit (11) and the indoor unit (12) store refrigerant information indicating refrigerants that can be used respectively.
  • the refrigerant information is collected from the outdoor unit (11) and the indoor unit (12), and the refrigerant circuit is based on the collected refrigerant information.
  • a display control unit (32) configured to determine the refrigerant used in (20) and display the refrigerant on the display screen (31) is provided.
  • the display control unit (32) collects refrigerant information stored in each of the outdoor unit (11) and the indoor unit (12).
  • the refrigerant used in the refrigerant circuit (20) is determined based on the refrigerant information and is displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user is used in the refrigerant circuit (20) only by looking at the type of refrigerant displayed on the display screen (31) of the remote controller (30). The refrigerant can be grasped.
  • the user before displaying the refrigerant used in the refrigerant circuit, for example, by moving the cursor on the display screen, the items in the hierarchical menu are appropriately selected. Operation is required.
  • the user can grasp the refrigerant used in the refrigerant circuit (20) without operating the remote controller (30).
  • the user can surely grasp the refrigerant used in the refrigerant circuit (20). For this reason, the maintenance worker who repairs an air conditioner (10) can prepare the apparatus etc. corresponding to the refrigerant
  • the display control unit (32) includes the model names of the outdoor unit (11) and the indoor unit (12), a contact information at the time of occurrence of an abnormality, Is displayed on the display screen (31) together with the refrigerant used in the refrigerant circuit (20).
  • the display control unit (32), the refrigerant used in the refrigerant circuit (20), the outdoor unit (11), and the indoor unit ( 12) Each model name and contact information at the time of abnormality are displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user only needs to look at the information displayed on the display screen (31) of the remote controller (30), and the user can select the refrigerant used in the refrigerant circuit (20). It is possible to simultaneously grasp the type, the name of each model of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs.
  • the third aspect of the present disclosure is characterized in that, in the first or second aspect, the refrigerant that can be displayed on the display screen (31) includes at least R32.
  • the refrigerant that can be displayed on the display screen (31) includes at least R32
  • the user can use, for example, the refrigerant used in the refrigerant circuit (20) as R410A (previously). It can be understood that it is not R32 (generally used refrigerant) but R32 alone (refrigerant which has started to be used in recent years).
  • the maintenance worker who repairs the air conditioner (10) can prepare the equipment and the like corresponding to R32 in advance, and can improve the efficiency of the repair work.
  • the display screen (31) is a dot matrix system, and the display screen (31) includes the refrigerant circuit ( 20), a refrigerant display dedicated area (40) for displaying only the refrigerant used is provided.
  • the display screen (31) is a dot matrix system, various information can be displayed on the display screen (31).
  • the display screen (31) is provided with the refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Therefore, the refrigerant used in the refrigerant circuit (20) can be clearly displayed on the display screen (31) without competing with other various information.
  • the display control unit (32) includes one type of refrigerant that can be used in the outdoor unit (11).
  • the refrigerant that can be used in the outdoor unit (11) matches any one of the refrigerants that can be used in the indoor unit (12).
  • the refrigerant usable in the outdoor unit (11) is configured to be the refrigerant used in the refrigerant circuit (20).
  • the display control unit (32) when there is one type of refrigerant that can be used in the outdoor unit (11) and there are multiple types of refrigerant that can be used in the indoor unit (12), the display control unit (32) When the refrigerant usable in (11) matches one of the refrigerants usable in the indoor unit (12), the refrigerant usable in the outdoor unit (11) is used in the refrigerant circuit (20). It is comprised so that. Therefore, when an abnormality occurs in the refrigerant circuit (20), the display control unit (32) displays refrigerant information collected from the outdoor unit (11) and the indoor unit (12), for example, refrigerant that can be used in the outdoor unit (11). Is R32, and the refrigerant used in the refrigerant circuit (20) is determined as R32 based on the refrigerant information that the refrigerant usable in the indoor unit (12) is R32 and R410A.
  • the display control unit (32) displays the refrigerant used in the refrigerant circuit (20) on the display screen (31) of the remote controller (30).
  • the user can surely grasp the refrigerant used in the refrigerant circuit (20).
  • FIG. 1 is a refrigerant circuit diagram illustrating a schematic configuration of an air conditioner according to Embodiment 1.
  • FIG. It is a front view which shows the 1st display state of the remote controller which comprises the air conditioner which concerns on Embodiment 1.
  • FIG. It is a front view which shows the 2nd display state of the remote controller which concerns on Embodiment 1.
  • FIG. It is a front view which shows the 3rd display state of the remote controller which concerns on Embodiment 1.
  • FIG. 6 is a table showing a refrigerant determination method in a control unit constituting the remote controller according to the first embodiment.
  • Embodiment 1 The air conditioner (10) of the present embodiment will be described with reference to FIGS. 1 to 5 as appropriate.
  • the air conditioner (10) includes an outdoor unit (11) and an indoor unit connected to the outdoor unit (11) via a liquid side connecting pipe (13) and a gas side connecting pipe (14).
  • a remote controller (30) that is electrically connected to the indoor unit (12) and that is communicably connected to the outdoor unit (11) and the indoor unit (12).
  • the outdoor unit (11), the indoor unit (12), the liquid side communication pipe (13), and the gas side communication pipe (14) constitute a refrigerant circuit (20).
  • the refrigerant circuit (20) is provided with a compressor (21), a four-way switching valve (22), an outdoor heat exchanger (23), an expansion valve (24), and an indoor heat exchanger (25).
  • the compressor (21), the four-way switching valve (22), the outdoor heat exchanger (23), and the expansion valve (24) are accommodated in the outdoor unit (11).
  • the outdoor unit (11) is provided with an outdoor fan (15) for supplying outdoor air to the outdoor heat exchanger (23).
  • the indoor heat exchanger (25) is accommodated in the indoor unit (12).
  • the indoor unit (12) is provided with an indoor fan (16) for supplying room air to the indoor heat exchanger (25).
  • the refrigerant circuit (20) is a closed circuit filled with refrigerant.
  • the compressor (21) has its discharge side connected to the first port of the four-way switching valve (22) and its suction side connected to the second port of the four-way switching valve (22). It is connected.
  • the outdoor heat exchanger (23), the expansion valve (24), and the indoor heat exchanger (25) are sequentially arranged from the third port to the fourth port of the four-way switching valve (22). ) Are arranged in order.
  • the compressor (21) is a scroll type or rotary type hermetic compressor.
  • the four-way switching valve (22) includes a first state (state indicated by a solid line in FIG. 1) in which the first port communicates with the third port and the second port communicates with the fourth port; The port is switched to a second state (state indicated by a broken line in FIG. 1) in which the port communicates with the fourth port and the second port communicates with the third port.
  • the expansion valve (24) is a so-called electronic expansion valve.
  • the outdoor heat exchanger (23) exchanges heat between the outdoor air and the refrigerant.
  • the indoor heat exchanger (25) exchanges heat between the indoor air and the refrigerant.
  • the outdoor unit (11) and the indoor unit (12) each have a control board (60, 65) on which electronic parts such as a microcomputer are attached.
  • the microcomputer attached to the control board (60) of the outdoor unit (11) is provided with a memory (61).
  • the memory (61) is a refrigerant information storage unit that stores refrigerant usable in the outdoor unit (11) as refrigerant information.
  • the microcomputer attached to the control board (65) of the indoor unit (12) is provided with a memory (66).
  • the memory (66) is a refrigerant information storage unit that stores refrigerant usable in the indoor unit (12) as refrigerant information.
  • the air conditioner (10) performs a cooling operation.
  • the four-way switching valve (22) is set to the first state.
  • the outdoor fan (15) and the indoor fan (16) are operated.
  • Refrigeration cycle is performed in the refrigerant circuit (20). Specifically, the refrigerant discharged from the compressor (21) flows into the outdoor heat exchanger (23) through the four-way switching valve (22), dissipates heat to the outdoor air, and is condensed. The refrigerant flowing out of the outdoor heat exchanger (23) expands when passing through the expansion valve (24), then flows into the indoor heat exchanger (25), absorbs heat from the indoor air, and evaporates. The refrigerant that has flowed out of the indoor heat exchanger (25) passes through the four-way switching valve (22) and then is sucked into the compressor (21) and compressed. The indoor unit (12) supplies the air cooled in the indoor heat exchanger (25) to the room.
  • the air conditioner (10) performs heating operation.
  • the four-way selector valve (22) is set to the second state.
  • the outdoor fan (15) and the indoor fan (16) are operated.
  • Refrigeration cycle is performed in the refrigerant circuit (20). Specifically, the refrigerant discharged from the compressor (21) flows into the indoor heat exchanger (25) through the four-way switching valve (22), dissipates heat to the indoor air, and condenses. The refrigerant flowing out of the indoor heat exchanger (25) expands when passing through the expansion valve (24), then flows into the outdoor heat exchanger (23), absorbs heat from the outdoor air, and evaporates. The refrigerant that has flowed out of the outdoor heat exchanger (23) passes through the four-way switching valve (22) and then is sucked into the compressor (21) and compressed. The indoor unit (12) supplies the air heated in the indoor heat exchanger (25) to the room.
  • FIG. 2 is a front view showing a basic screen (51) of the remote controller (30).
  • FIG. 3 is a front view showing the menu screen (52) of the remote controller (30).
  • FIG. 4 is a front view showing the service screen (53) of the remote controller (30).
  • the remote controller (30) is formed in a substantially rectangular shape in plan view as shown in FIGS. 2 to 4, and includes a display screen (31), a display control unit (32), a cursor movement button (34), A confirmation button (35), an operation switching button (36), an operation / stop button (37), an air volume adjustment button (38), and a cancel button (39) are provided.
  • the display screen (31) displays the operation state of the air conditioner (10), and is constituted by, for example, a dot matrix type liquid crystal display panel. Further, as shown in FIGS. 2 to 4, the display screen (31) is provided with a refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Further, as shown in FIGS. 2 to 4, a basic screen (51), a menu screen (52), a service screen (53), and the like are appropriately displayed on the display screen (31).
  • the cursor movement button (34) is a button operated when moving the cursor (33) indicating an arbitrary item in the menu screen (52).
  • the cursor movement button (34) is configured to display four marks indicating each of the upper, lower, left, and right directions, and the cursor (33) is moved in a direction corresponding to the mark by pressing the mark. Has been.
  • the confirmation button (35) is a button that is operated when determining the menu item indicated by the cursor (33). Also, “Menu / Confirm” is printed on the confirm button (35). When the confirm button (35) is pressed, the menu screen (52) is displayed, and an item is selected from the menu screen (52). When the confirm button (35) is pressed again, the item is executed.
  • the operation switching button (36) is a button operated when switching the operation mode of the air conditioner (10).
  • the operation / stop button (37) is a button that is operated when the operation of the air conditioner (10) is started or stopped, and is repeatedly started and stopped each time it is pressed.
  • the air volume adjustment button (38) is a button operated when adjusting the amount of air blown from the indoor unit (12).
  • the cancel button (39) is a button operated when invalidating the content set with the confirm button (35) or the like.
  • the display control unit (32) is configured to display the refrigerant used in the refrigerant circuit (20) (that is, the refrigerant sealed in the refrigerant circuit (20)) on the display screen (31) when an abnormality occurs.
  • an abnormality such as an overcurrent flowing through the compressor (21) occurs during the cooling operation or heating operation of the air conditioner (10
  • the display control unit (32) Collect refrigerant information from outdoor unit (11) and indoor unit (12).
  • the display control unit (32) determines the refrigerant used in the refrigerant circuit (20) based on the collected refrigerant information.
  • the display control unit (32) displays the refrigerant used in the refrigerant circuit (20), the model names of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs. Display on the service screen (53) of (31).
  • FIG. 5 is a table showing a refrigerant determination method in the display control unit (32).
  • the outdoor unit (11) stores only R410A as refrigerant information
  • the indoor unit (12) stores only R410A as refrigerant information. Since the refrigerant information (R410A) of the outdoor unit (11) matches the refrigerant information (R410A) of the indoor unit (12), the display control unit (32) determines that the refrigerant used in the refrigerant circuit (20) is R410A. And decide. When the refrigerant used in the refrigerant circuit (20) is R410A, the display control unit (32) does not display the type of refrigerant in the refrigerant display dedicated area (40) of the display screen (31).
  • R410A is generally used as a refrigerant for air conditioners. Therefore, the maintenance worker who repairs the air conditioner usually carries equipment corresponding to R410A. Therefore, when the refrigerant used in the refrigerant circuit (20) is R410A, the maintenance worker can immediately perform repair work even if the refrigerant used in the refrigerant circuit (20) is not transmitted to the maintenance worker in advance. You can start. Therefore, when the refrigerant used in the refrigerant circuit (20) is R410A, the display control unit (32) of the present embodiment displays the type of refrigerant (in this case, R410A) in the refrigerant display dedicated area (40). I won't let you.
  • the outdoor unit (11) stores only R410A as refrigerant information
  • the indoor unit (12) stores R410A and R32 as refrigerant information.
  • the display control unit (32) since the indoor unit (12) stores a plurality of pieces of refrigerant information, the refrigerant that matches the refrigerant information of the outdoor unit (11) among the plurality of pieces of refrigerant information stored in the room is displayed. Judged as the refrigerant used in the machine (12).
  • the display control unit (32) matches the refrigerant circuit (20 ) Is determined as R410A.
  • the display control unit (32) displays the type of refrigerant (in this case, R410A) in the refrigerant display dedicated area (40) of the display screen (31). I won't let you.
  • the outdoor unit (11) stores only R32 as refrigerant information
  • the indoor unit (12) stores R410A and R32 as refrigerant information.
  • the display control unit (32) since the indoor unit (12) stores a plurality of pieces of refrigerant information, the refrigerant that matches the refrigerant information of the outdoor unit (11) among the plurality of pieces of refrigerant information stored in the room is displayed. Judged as the refrigerant used in the machine (12).
  • the display control part (32) matches a refrigerant circuit (20 ) Is determined as R32.
  • the display control unit (32) displays the type of refrigerant (in this case, R32) in the refrigerant display dedicated area (40) of the display screen (31).
  • R32 alone has recently been used as a refrigerant for air conditioners. Therefore, there is a possibility that a maintenance worker who repairs the air conditioner does not carry equipment corresponding to R32. Therefore, when the refrigerant used in the refrigerant circuit (20) is R32, if the refrigerant used in the refrigerant circuit (20) is not transmitted to the maintenance worker in advance, the maintenance worker immediately starts repair work. It may not be possible. Therefore, when the refrigerant used in the refrigerant circuit (20) is R32, the display control unit (32) of the present embodiment displays the type of refrigerant (in this case, R32) in the refrigerant display dedicated area (40). Let
  • the outdoor unit (11) stores only R410A as refrigerant information
  • the indoor unit (12) stores only R32 as refrigerant information.
  • the display control unit (32) is used in the outdoor unit (11) and the indoor unit (12) because the refrigerant information (R410A) of the outdoor unit (11) does not match the refrigerant information (R32) of the indoor unit (12).
  • a message indicating that the possible refrigerants do not match is displayed on the display screen (31).
  • an error code or the like may be displayed on the display screen (31) instead of the characters “refrigerant mismatch”.
  • the outdoor unit (11) stores only R32 as refrigerant information
  • the indoor unit (12) stores only R410A as refrigerant information.
  • the display control unit (32) is used in the outdoor unit (11) and the indoor unit (12) because the refrigerant information (R32) of the outdoor unit (11) and the refrigerant information (R410A) of the indoor unit (12) do not match.
  • a message indicating that the possible refrigerants do not match (for example, “refrigerant mismatch”) is displayed on the display screen (31).
  • an error code or the like may be displayed on the display screen (31) instead of the characters “refrigerant mismatch”.
  • the display control unit (32) determines the refrigerant used in the refrigerant circuit (20) when an abnormality occurs during the operation of the air conditioner (10). In this case, since the air conditioner (10) was operating normally before the abnormality occurred, it can be used with the outdoor unit (11) and the indoor unit (12) as in connection examples 4 and 5 in FIG. A situation in which different refrigerants do not match is unlikely.
  • the display control unit (32) of the present embodiment is not limited to when an abnormality occurs during operation of the air conditioner (10), but also when the air conditioner (10) is installed, The refrigerant
  • the display control unit (32) determines the refrigerant that can be used in the refrigerant circuit (20) by performing the same operation as when the abnormality of the air conditioner (10) occurs.
  • the determined refrigerant is displayed on the display screen (31).
  • the refrigerant circuit (20) can be filled with an appropriate refrigerant.
  • the display control unit (32) displays that fact on the display screen (31). Thereby, a trouble can be prevented beforehand without making a mistake in the combination of an outdoor unit (11) and an indoor unit (12).
  • the display control unit (32) is configured such that when an abnormality occurs in the refrigerant circuit (20), the outdoor unit (11) and the indoor unit (12) The refrigerant information stored in each is collected, and the refrigerant used in the refrigerant circuit (20) is determined based on the refrigerant information and displayed on the display screen (31) of the remote controller (30). ing. Therefore, when the user contacts the service center, the display screen (31) of the remote controller (30) without checking the outdoor unit and the display means (display label, display lamp, etc.) provided on the indoor unit. The user can grasp the refrigerant used in the refrigerant circuit (20) only by looking at the type of refrigerant displayed on the screen.
  • the air conditioner (10) of the present embodiment the user is used in the refrigerant circuit (20) without operating the buttons (34 to 39) of the remote controller (30). The refrigerant can be grasped.
  • the user can surely grasp the refrigerant used in the refrigerant circuit (20).
  • the maintenance worker who repairs the air conditioner (10) can prepare in advance equipment and the like corresponding to the refrigerant used in the refrigerant circuit (20), thereby improving the efficiency of the repair work. Can be improved.
  • the display control unit (32) when an abnormality occurs in the refrigerant circuit (20), the refrigerant used in the refrigerant circuit (20),
  • the model names of the outdoor unit (11) and the indoor unit (12) and the contact information when an abnormality occurs are displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user only needs to look at the information displayed on the display screen (31) of the remote controller (30), and the user can select the refrigerant used in the refrigerant circuit (20). It is possible to simultaneously grasp the type, the name of each model of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs.
  • the refrigerant used in 20 is not R410A (a refrigerant generally used from before) but a single R32 (a refrigerant that has started to be used in recent years).
  • the maintenance worker who repairs the air conditioner (10) can prepare the equipment and the like corresponding to R32 in advance, and can improve the efficiency of the repair work.
  • the display screen (31) is a dot matrix system, various information can be displayed on the display screen (31).
  • the display screen (31) is provided with the refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Therefore, the refrigerant used in the refrigerant circuit (20) can be clearly displayed on the display screen (31) without competing with other various information.
  • the air conditioner (10) of the first embodiment includes one outdoor unit (11) and one indoor unit (12), the air conditioner (10) includes one unit.
  • An outdoor unit and a plurality of indoor units may be provided.
  • a refrigerant that matches between a refrigerant that can be used in the outdoor unit and a common refrigerant among the refrigerants that can be used in each indoor unit may be used as the refrigerant used in the refrigerant circuit.
  • the display screen (31) of the remote controller (30) is displayed on the refrigerant circuit (20) without operating the remote controller (30).
  • the air conditioner (10) that displays the refrigerant used is illustrated, the refrigerant may be displayed by performing a single input operation with the remote controller.
  • each said embodiment is an essentially preferable illustration, Comprising: It does not intend restrict
  • the present invention is useful for an air conditioner because the user can surely grasp the refrigerant used in the refrigerant circuit.

Abstract

An indoor unit (11) and an outdoor unit (12) of an air conditioner (10) are configured so as to store refrigerant information that indicates the refrigerant that can be used by each. A remote controller (30) for the air conditioner (10) is provided with a display controller (32). The display controller (32) is configured so as to collect refrigerant information from the outdoor unit (11) and the indoor unit (12) when an abnormality occurs in a refrigeration circuit (20), determine the refrigerant used in the refrigeration circuit (20) on the basis of the collected refrigerant information, and display the refrigerant on a display screen (31). Thus, if an abnormality occurs in the refrigeration circuit, the user can reliably ascertain the refrigerant used in the refrigeration circuit.

Description

空気調和機Air conditioner
　本発明は、室外機及び室内機を備えて冷凍サイクルを行う空気調和機に関するものである。 The present invention relates to an air conditioner that includes an outdoor unit and an indoor unit and performs a refrigeration cycle.
　近年、冷媒回路を備えた空気調和機では、冷媒回路を循環するＨＦＣ（ハイドロフルオロカーボン）系の冷媒として、従前より使用されてきたＲ４１０Ａの代わりに、地球温暖化係数のより小さいＲ３２単体が使用され始めている。そのため、空気調和機の市場では、Ｒ４１０Ａを使用する空気調和機と、Ｒ３２単体を使用する空気調和機とが混在している。 In recent years, in an air conditioner equipped with a refrigerant circuit, R32 alone, which has a smaller global warming potential, is used instead of R410A, which has been used in the past, as an HFC (hydrofluorocarbon) refrigerant circulating in the refrigerant circuit. I'm starting. Therefore, in the air conditioner market, air conditioners using R410A and air conditioners using R32 alone are mixed.
　例えば、特許文献１には、室内機及び室外機において使用できる冷媒の種類をそれぞれ記憶している室内メモリ及び室外メモリを備えた空気調和機が開示されている。そして、これによれば、表示ラベルがなくても使用冷媒を容易且つ確実に確認することができ、室内機と室外機との間の使用冷媒の不一致、又は残留冷媒と注入冷媒との不一致を防止することができる、と記載されている。 For example, Patent Document 1 discloses an air conditioner including an indoor memory and an outdoor memory that store the types of refrigerants that can be used in the indoor unit and the outdoor unit, respectively. And according to this, even if there is no display label, the refrigerant used can be easily and reliably confirmed, and the mismatch between the refrigerant used and the residual refrigerant and the injected refrigerant between the indoor unit and the outdoor unit can be confirmed. It is described that it can be prevented.
特開平１０－３８３５４号公報Japanese Patent Laid-Open No. 10-38354
　上述したように、空気調和機の市場では、Ｒ４１０Ａを使用する空気調和機と、Ｒ３２単体を使用する空気調和機とが混在しているので、空気調和機の修理を行う保守作業者は、Ｒ４１０Ａ及びＲ３２の両方の冷媒に対応する必要がある。 As described above, in the air conditioner market, air conditioners that use R410A and air conditioners that use R32 alone are mixed, so the maintenance worker who repairs the air conditioner is R410A. And R32 refrigerants must be supported.
　しかしながら、修理を行う現場に保守作業者が着いてから、使用冷媒が判明するのでは、修理作業の効率が低下してしまう。そのため、空気調和機の冷媒回路に異常が発生して、サービスセンター等にユーザーが連絡する際に、異常が発生した空気調和機に使用されている冷媒をユーザーから知らせてもらうのが望ましい。 However, once the maintenance worker arrives at the repair site and the refrigerant used is determined, the efficiency of the repair work is reduced. Therefore, when an abnormality occurs in the refrigerant circuit of the air conditioner and the user contacts the service center or the like, it is desirable to have the user know the refrigerant used in the air conditioner in which the abnormality has occurred.
　ここで、特許文献１に開示された空気調和機では、リモコンの液晶表示部に使用冷媒を表示させることができる。しかし、空気調和機の据付時における使用冷媒の初期確認を主な目的としているので、修理作業が必要になった際には、リモコンの液晶表示部に使用冷媒を表示させるまでに所定の操作が必要である。従って、特許文献１に開示された従来の空気調和機には、この点について改善の余地がある。 Here, in the air conditioner disclosed in Patent Document 1, the refrigerant used can be displayed on the liquid crystal display unit of the remote controller. However, the main purpose is to check the refrigerant used at the time of installation of the air conditioner.When repair work is required, a predetermined operation is required until the refrigerant is displayed on the LCD display of the remote control. is necessary. Therefore, the conventional air conditioner disclosed in Patent Document 1 has room for improvement in this regard.
　本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、冷媒回路に異常が発生した際に、冷媒回路に使用されている冷媒をユーザーに確実に把握させることにある。 The present invention has been made in view of such a point, and an object of the present invention is to make a user surely grasp the refrigerant used in the refrigerant circuit when an abnormality occurs in the refrigerant circuit. .
　本開示の第１の態様は、室外機（11）及び室内機（12）が設けられた冷媒回路（20）と、上記室外機（11）及び室内機（12）に通信可能に設けられ、表示画面（31）を有するリモートコントローラ（30）とを備えた空気調和機であって、上記室外機（11）及び室内機（12）は、それぞれが使用可能な冷媒を示す冷媒情報を記憶するように構成され、上記冷媒回路（20）に異常が発生した際に、上記室外機（11）及び室内機（12）から上記冷媒情報を収集し、収集した該冷媒情報に基づいて上記冷媒回路（20）に使用されている冷媒を決めて上記表示画面（31）に表示させるように構成された表示制御部（32）を備えていることを特徴とするものである。 The first aspect of the present disclosure is provided to be able to communicate with the refrigerant circuit (20) provided with the outdoor unit (11) and the indoor unit (12), and the outdoor unit (11) and the indoor unit (12). An air conditioner including a remote controller (30) having a display screen (31), wherein the outdoor unit (11) and the indoor unit (12) store refrigerant information indicating refrigerants that can be used respectively. When the abnormality occurs in the refrigerant circuit (20), the refrigerant information is collected from the outdoor unit (11) and the indoor unit (12), and the refrigerant circuit is based on the collected refrigerant information. A display control unit (32) configured to determine the refrigerant used in (20) and display the refrigerant on the display screen (31) is provided.
　上記第１の態様では、冷媒回路（20）に異常が発生した際に、表示制御部（32）は、室外機（11）及び室内機（12）からそれぞれに記憶された冷媒情報を収集し、その冷媒情報に基づいて冷媒回路（20）に使用されている冷媒を決めてリモートコントローラ（30）の表示画面（31）に表示させるように構成されている。そのため、サービスセンター等にユーザーが連絡する際には、リモートコントローラ（30）の表示画面（31）に表示された冷媒の種類を見るだけで、ユーザーは、冷媒回路（20）に使用されている冷媒を把握することができる。 In the first aspect, when an abnormality occurs in the refrigerant circuit (20), the display control unit (32) collects refrigerant information stored in each of the outdoor unit (11) and the indoor unit (12). The refrigerant used in the refrigerant circuit (20) is determined based on the refrigerant information and is displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user is used in the refrigerant circuit (20) only by looking at the type of refrigerant displayed on the display screen (31) of the remote controller (30). The refrigerant can be grasped.
　ここで、従来の空気調和機のリモートコントローラでは、冷媒回路に使用されている冷媒を表示させるまでに、例えば、表示画面上でカーソルを移動させることにより、階層構造のメニューにおける項目を適宜選択する操作が必要である。これに対し、上記第１の態様では、ユーザーは、リモートコントローラ（30）を操作しなくても、冷媒回路（20）に使用されている冷媒を把握することができる。 Here, in the conventional remote controller of the air conditioner, before displaying the refrigerant used in the refrigerant circuit, for example, by moving the cursor on the display screen, the items in the hierarchical menu are appropriately selected. Operation is required. On the other hand, in the first aspect, the user can grasp the refrigerant used in the refrigerant circuit (20) without operating the remote controller (30).
　したがって、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒をユーザーに確実に把握させることができる。このため、空気調和機（10）の修理を行う保守作業者は、冷媒回路（20）に使用されている冷媒に対応する器材等を事前に準備することができる。従って、この第１の態様によれば、修理作業の効率を向上させることができる。 Therefore, when an abnormality occurs in the refrigerant circuit (20), the user can surely grasp the refrigerant used in the refrigerant circuit (20). For this reason, the maintenance worker who repairs an air conditioner (10) can prepare the apparatus etc. corresponding to the refrigerant | coolant currently used for the refrigerant circuit (20) in advance. Therefore, according to the first aspect, the efficiency of the repair work can be improved.
　本開示の第２の態様は、上記第１の態様において、上記表示制御部（32）は、上記室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とを、上記冷媒回路（20）に使用されている冷媒と共に上記表示画面（31）に表示するように構成されていることを特徴とするものである。 According to a second aspect of the present disclosure, in the first aspect, the display control unit (32) includes the model names of the outdoor unit (11) and the indoor unit (12), a contact information at the time of occurrence of an abnormality, Is displayed on the display screen (31) together with the refrigerant used in the refrigerant circuit (20).
　上記第２の態様では、表示制御部（32）は、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒と、室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とをリモートコントローラ（30）の表示画面（31）に表示するように構成されている。そのため、サービスセンター等にユーザーが連絡する際には、リモートコントローラ（30）の表示画面（31）に表示された情報を見るだけで、ユーザーは、冷媒回路（20）に使用されている冷媒の種類と、室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とを同時に把握することができる。 In the second aspect, when the abnormality occurs in the refrigerant circuit (20), the display control unit (32), the refrigerant used in the refrigerant circuit (20), the outdoor unit (11), and the indoor unit ( 12) Each model name and contact information at the time of abnormality are displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user only needs to look at the information displayed on the display screen (31) of the remote controller (30), and the user can select the refrigerant used in the refrigerant circuit (20). It is possible to simultaneously grasp the type, the name of each model of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs.
　本開示の第３の態様は、上記第１又は第２の態様において、上記表示画面（31）に表示可能な冷媒には、少なくともＲ３２が含まれていることを特徴とするものである。 The third aspect of the present disclosure is characterized in that, in the first or second aspect, the refrigerant that can be displayed on the display screen (31) includes at least R32.
　上記第３の態様では、表示画面（31）に表示可能な冷媒には、少なくともＲ３２が含まれているので、ユーザーは、例えば、冷媒回路（20）に使用されている冷媒がＲ４１０Ａ（従前より一般的に使用されてきた冷媒）でなくＲ３２単体（近年、使用され始めた冷媒）であることを把握することができる。そして、これにより、空気調和機（10）の修理を行う保守作業者は、Ｒ３２に対応する器材等を事前に準備することができ、修理作業の効率を向上させることができる。 In the third aspect, since the refrigerant that can be displayed on the display screen (31) includes at least R32, the user can use, for example, the refrigerant used in the refrigerant circuit (20) as R410A (previously). It can be understood that it is not R32 (generally used refrigerant) but R32 alone (refrigerant which has started to be used in recent years). As a result, the maintenance worker who repairs the air conditioner (10) can prepare the equipment and the like corresponding to R32 in advance, and can improve the efficiency of the repair work.
　本開示の第４の態様は、上記第１～第３の何れか１つの態様において、上記表示画面（31）は、ドットマトリクス方式であり、上記表示画面（31）には、上記冷媒回路（20）に使用されている冷媒だけを表示する冷媒表示専用領域（40）が設けられていることを特徴とするものである。 According to a fourth aspect of the present disclosure, in any one of the first to third aspects, the display screen (31) is a dot matrix system, and the display screen (31) includes the refrigerant circuit ( 20), a refrigerant display dedicated area (40) for displaying only the refrigerant used is provided.
　上記第４の態様では、表示画面（31）がドットマトリクス方式であるので、表示画面（31）上に種々の情報を表示することができる。しかし、この態様では、表示画面（31）に冷媒回路（20）に使用されている冷媒だけを表示する冷媒表示専用領域（40）が設けられている。そのため、表示画面（31）上で他の種々の情報と競合することなく、冷媒回路（20）に使用されている冷媒を明確に表示することができる。 In the fourth aspect, since the display screen (31) is a dot matrix system, various information can be displayed on the display screen (31). However, in this aspect, the display screen (31) is provided with the refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Therefore, the refrigerant used in the refrigerant circuit (20) can be clearly displayed on the display screen (31) without competing with other various information.
　本開示の第５の態様は、上記第１～第４の何れか１つの態様において、上記表示制御部（32）は、上記室外機（11）で使用可能な冷媒が１種類であり、上記室内機（12）で使用可能な冷媒が複数種類である場合には、上記室外機（11）で使用可能な冷媒が上記室内機（12）で使用可能な冷媒の何れか１つと一致するときに、上記室外機（11）で使用可能な冷媒を上記冷媒回路（20）に使用されている冷媒とするように構成されていることを特徴とするものである。 According to a fifth aspect of the present disclosure, in any one of the first to fourth aspects, the display control unit (32) includes one type of refrigerant that can be used in the outdoor unit (11). When there are multiple types of refrigerants that can be used in the indoor unit (12), the refrigerant that can be used in the outdoor unit (11) matches any one of the refrigerants that can be used in the indoor unit (12). Further, the refrigerant usable in the outdoor unit (11) is configured to be the refrigerant used in the refrigerant circuit (20).
　上記第５の態様では、室外機（11）で使用可能な冷媒が１種類であり、室内機（12）で使用可能な冷媒が複数種類である場合、表示制御部（32）は、室外機（11）で使用可能な冷媒が室内機（12）で使用可能な冷媒の何れか１つと一致するとき、室外機（11）で使用可能な冷媒を冷媒回路（20）に使用されている冷媒とするように構成されている。そのため、冷媒回路（20）に異常が発生すると、表示制御部（32）は、室外機（11）及び室内機（12）から収集した冷媒情報、例えば、室外機（11）で使用可能な冷媒がＲ３２であり、室内機（12）で使用可能な冷媒がＲ３２及びＲ４１０Ａであるという冷媒情報に基づいて、冷媒回路（20）に使用されている冷媒をＲ３２と決定することになる。 In the fifth aspect, when there is one type of refrigerant that can be used in the outdoor unit (11) and there are multiple types of refrigerant that can be used in the indoor unit (12), the display control unit (32) When the refrigerant usable in (11) matches one of the refrigerants usable in the indoor unit (12), the refrigerant usable in the outdoor unit (11) is used in the refrigerant circuit (20). It is comprised so that. Therefore, when an abnormality occurs in the refrigerant circuit (20), the display control unit (32) displays refrigerant information collected from the outdoor unit (11) and the indoor unit (12), for example, refrigerant that can be used in the outdoor unit (11). Is R32, and the refrigerant used in the refrigerant circuit (20) is determined as R32 based on the refrigerant information that the refrigerant usable in the indoor unit (12) is R32 and R410A.
　本開示によれば、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒をリモートコントローラ（30）の表示画面（31）に表示させる表示制御部（32）を備えているので、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒をユーザーに確実に把握させることができる。 According to the present disclosure, when an abnormality occurs in the refrigerant circuit (20), the display control unit (32) displays the refrigerant used in the refrigerant circuit (20) on the display screen (31) of the remote controller (30). ), When the abnormality occurs in the refrigerant circuit (20), the user can surely grasp the refrigerant used in the refrigerant circuit (20).
実施形態１に係る空気調和機の概略構成を示す冷媒回路図である。1 is a refrigerant circuit diagram illustrating a schematic configuration of an air conditioner according to Embodiment 1. FIG. 実施形態１に係る空気調和機を構成するリモートコントローラの第１の表示状態を示す正面図である。It is a front view which shows the 1st display state of the remote controller which comprises the air conditioner which concerns on Embodiment 1. FIG. 実施形態１に係るリモートコントローラの第２の表示状態を示す正面図である。It is a front view which shows the 2nd display state of the remote controller which concerns on Embodiment 1. FIG. 実施形態１に係るリモートコントローラの第３の表示状態を示す正面図である。It is a front view which shows the 3rd display state of the remote controller which concerns on Embodiment 1. FIG. 実施形態１に係るリモートコントローラを構成する制御部での冷媒の決定方法を示す表である。6 is a table showing a refrigerant determination method in a control unit constituting the remote controller according to the first embodiment.
　以下、本発明の実施形態を図面に基づいて詳細に説明する。なお、本発明は、以下の各実施形態に限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments.
　《実施形態１》
　本実施形態の空気調和機（10）について、図１～５を適宜参照しながら説明する。 Embodiment 1
The air conditioner (10) of the present embodiment will be described with reference to FIGS. 1 to 5 as appropriate.
　　　＜空気調和機の構成＞
　図１に示すように、空気調和機（10）は、室外機（11）と、室外機（11）に液側連絡配管（13）及びガス側連絡配管（14）を介して接続された室内機（12）と、室内機（12）に電気的に接続され、室外機（11）及び室内機（12）に通信可能に設けられたリモートコントローラ（30）とを備えている。空気調和機（10）では、室外機（11）、室内機（12）、液側連絡配管（13）及びガス側連絡配管（14）により冷媒回路（20）が構成されている。 <Configuration of air conditioner>
As shown in FIG. 1, the air conditioner (10) includes an outdoor unit (11) and an indoor unit connected to the outdoor unit (11) via a liquid side connecting pipe (13) and a gas side connecting pipe (14). A remote controller (30) that is electrically connected to the indoor unit (12) and that is communicably connected to the outdoor unit (11) and the indoor unit (12). In the air conditioner (10), the outdoor unit (11), the indoor unit (12), the liquid side communication pipe (13), and the gas side communication pipe (14) constitute a refrigerant circuit (20).
　冷媒回路（20）には、圧縮機（21）、四方切換弁（22）、室外熱交換器（23）、膨張弁（24）及び室内熱交換器（25）が設けられている。圧縮機（21）、四方切換弁（22）、室外熱交換器（23）及び膨張弁（24）は、室外機（11）に収容されている。この室外機（11）には、室外熱交換器（23）へ室外空気を供給するための室外ファン（15）が設けられている。一方、室内熱交換器（25）は、室内機（12）に収容されている。この室内機（12）には、室内熱交換器（25）へ室内空気を供給するための室内ファン（16）が設けられている。 The refrigerant circuit (20) is provided with a compressor (21), a four-way switching valve (22), an outdoor heat exchanger (23), an expansion valve (24), and an indoor heat exchanger (25). The compressor (21), the four-way switching valve (22), the outdoor heat exchanger (23), and the expansion valve (24) are accommodated in the outdoor unit (11). The outdoor unit (11) is provided with an outdoor fan (15) for supplying outdoor air to the outdoor heat exchanger (23). On the other hand, the indoor heat exchanger (25) is accommodated in the indoor unit (12). The indoor unit (12) is provided with an indoor fan (16) for supplying room air to the indoor heat exchanger (25).
　冷媒回路（20）は、冷媒が充填された閉回路である。冷媒回路（20）において、圧縮機（21）は、その吐出側が四方切換弁（22）の第１のポートに接続されていると共に、その吸入側が四方切換弁（22）の第２のポートに接続されている。また、冷媒回路（20）では、四方切換弁（22）の第３のポートから第４のポートへ向かって順に、室外熱交換器（23）、膨張弁（24）及び室内熱交換器（25）が順に配置されている。 The refrigerant circuit (20) is a closed circuit filled with refrigerant. In the refrigerant circuit (20), the compressor (21) has its discharge side connected to the first port of the four-way switching valve (22) and its suction side connected to the second port of the four-way switching valve (22). It is connected. In the refrigerant circuit (20), the outdoor heat exchanger (23), the expansion valve (24), and the indoor heat exchanger (25) are sequentially arranged from the third port to the fourth port of the four-way switching valve (22). ) Are arranged in order.
　圧縮機（21）は、スクロール型又はロータリ型の全密閉型圧縮機である。四方切換弁（22）は、第１のポートが第３のポートと連通し且つ第２のポートが第４のポートと連通する第１状態（図１に実線で示す状態）と、第１のポートが第４のポートと連通し且つ第２のポートが第３のポートと連通する第２状態（図１に破線で示す状態）とに切り換わる。膨張弁（24）は、いわゆる電子膨張弁である。 The compressor (21) is a scroll type or rotary type hermetic compressor. The four-way switching valve (22) includes a first state (state indicated by a solid line in FIG. 1) in which the first port communicates with the third port and the second port communicates with the fourth port; The port is switched to a second state (state indicated by a broken line in FIG. 1) in which the port communicates with the fourth port and the second port communicates with the third port. The expansion valve (24) is a so-called electronic expansion valve.
　室外熱交換器（23）は、室外空気を冷媒と熱交換させる。室内熱交換器（25）は、室内空気を冷媒と熱交換させる。 The outdoor heat exchanger (23) exchanges heat between the outdoor air and the refrigerant. The indoor heat exchanger (25) exchanges heat between the indoor air and the refrigerant.
　室外機（11）及び室内機（12）は、マイコン等の電子部品が取り付けられた制御基板（60,65）をそれぞれが備えている。室外機（11）の制御基板（60）に取り付けられたマイコンには、メモリ（61）が設けられている。このメモリ（61）は、室外機（11）で使用可能な冷媒を冷媒情報として記憶する冷媒情報記憶部である。また、室内機（12）の制御基板（65）に取り付けられたマイコンには、メモリ（66）が設けられている。このメモリ（66）は、室内機（12）で使用可能な冷媒を冷媒情報として記憶する冷媒情報記憶部である。 The outdoor unit (11) and the indoor unit (12) each have a control board (60, 65) on which electronic parts such as a microcomputer are attached. The microcomputer attached to the control board (60) of the outdoor unit (11) is provided with a memory (61). The memory (61) is a refrigerant information storage unit that stores refrigerant usable in the outdoor unit (11) as refrigerant information. In addition, the microcomputer attached to the control board (65) of the indoor unit (12) is provided with a memory (66). The memory (66) is a refrigerant information storage unit that stores refrigerant usable in the indoor unit (12) as refrigerant information.
　　　＜空気調和機の冷房運転＞
　空気調和機（10）は、冷房運転を行う。ここで、冷房運転中には、四方切換弁（22）が第１状態に設定される。また、冷房運転中には、室外ファン（15）及び室内ファン（16）が運転される。 <Cooling operation of air conditioner>
The air conditioner (10) performs a cooling operation. Here, during the cooling operation, the four-way switching valve (22) is set to the first state. During the cooling operation, the outdoor fan (15) and the indoor fan (16) are operated.
　冷媒回路（20）では、冷凍サイクルが行われる。具体的に、圧縮機（21）から吐出された冷媒は、四方切換弁（22）を通って室外熱交換器（23）へ流入し、室外空気へ放熱して凝縮する。室外熱交換器（23）から流出した冷媒は、膨張弁（24）を通過する際に膨張してから室内熱交換器（25）へ流入し、室内空気から吸熱して蒸発する。室内熱交換器（25）から流出した冷媒は、四方切換弁（22）を通過後に圧縮機（21）へ吸入されて圧縮される。室内機（12）は、室内熱交換器（25）において冷却された空気を室内へ供給する。 Refrigeration cycle is performed in the refrigerant circuit (20). Specifically, the refrigerant discharged from the compressor (21) flows into the outdoor heat exchanger (23) through the four-way switching valve (22), dissipates heat to the outdoor air, and is condensed. The refrigerant flowing out of the outdoor heat exchanger (23) expands when passing through the expansion valve (24), then flows into the indoor heat exchanger (25), absorbs heat from the indoor air, and evaporates. The refrigerant that has flowed out of the indoor heat exchanger (25) passes through the four-way switching valve (22) and then is sucked into the compressor (21) and compressed. The indoor unit (12) supplies the air cooled in the indoor heat exchanger (25) to the room.
　　　＜空気調和機の暖房運転＞
　空気調和機（10）は、暖房運転を行う。ここで、暖房運転中には、四方切換弁（22）が第２状態に設定される。また、暖房運転中には、室外ファン（15）及び室内ファン（16）が運転される。 <Heating operation of air conditioner>
The air conditioner (10) performs heating operation. Here, during the heating operation, the four-way selector valve (22) is set to the second state. During the heating operation, the outdoor fan (15) and the indoor fan (16) are operated.
　冷媒回路（20）では、冷凍サイクルが行われる。具体的に、圧縮機（21）から吐出された冷媒は、四方切換弁（22）を通って室内熱交換器（25）へ流入し、室内空気へ放熱して凝縮する。室内熱交換器（25）から流出した冷媒は、膨張弁（24）を通過する際に膨張してから室外熱交換器（23）へ流入し、室外空気から吸熱して蒸発する。室外熱交換器（23）から流出した冷媒は、四方切換弁（22）を通過後に圧縮機（21）へ吸入されて圧縮される。室内機（12）は、室内熱交換器（25）において加熱された空気を室内へ供給する。 Refrigeration cycle is performed in the refrigerant circuit (20). Specifically, the refrigerant discharged from the compressor (21) flows into the indoor heat exchanger (25) through the four-way switching valve (22), dissipates heat to the indoor air, and condenses. The refrigerant flowing out of the indoor heat exchanger (25) expands when passing through the expansion valve (24), then flows into the outdoor heat exchanger (23), absorbs heat from the outdoor air, and evaporates. The refrigerant that has flowed out of the outdoor heat exchanger (23) passes through the four-way switching valve (22) and then is sucked into the compressor (21) and compressed. The indoor unit (12) supplies the air heated in the indoor heat exchanger (25) to the room.
　－リモートコントローラ－
　リモートコントローラ（30）について、図２～図４を参照しながら説明する。ここで、図２は、リモートコントローラ（30）の基本画面（51）を示す正面図である。また、図３は、リモートコントローラ（30）のメニュー画面（52）を示す正面図である。また、図４は、リモートコントローラ（30）のサービス画面（53）を示す正面図である。 -Remote controller-
The remote controller (30) will be described with reference to FIGS. Here, FIG. 2 is a front view showing a basic screen (51) of the remote controller (30). FIG. 3 is a front view showing the menu screen (52) of the remote controller (30). FIG. 4 is a front view showing the service screen (53) of the remote controller (30).
　　　＜リモートコントローラの構成＞
　リモートコントローラ（30）は、図２～図４に示すように、平面視で略矩形状に形成され、表示画面（31）と、表示制御部（32）と、カーソル移動ボタン（34）と、確定ボタン（35）と、運転切換ボタン（36）と、運転／停止ボタン（37）と、風量調節ボタン（38）と、キャンセルボタン（39）とを備えている。 <Configuration of remote controller>
The remote controller (30) is formed in a substantially rectangular shape in plan view as shown in FIGS. 2 to 4, and includes a display screen (31), a display control unit (32), a cursor movement button (34), A confirmation button (35), an operation switching button (36), an operation / stop button (37), an air volume adjustment button (38), and a cancel button (39) are provided.
　表示画面（31）は、空気調和機（10）の運転状態を表示するものであり、例えば、ドットマトリクス方式の液晶表示パネルにより構成されている。また、表示画面（31）には、図２～図４に示すように、冷媒回路（20）に使用されている冷媒だけを表示する冷媒表示専用領域（40）が設けられている。また、表示画面（31）には、図２～図４に示すように、基本画面（51）、メニュー画面（52）及びサービス画面（53）等が適宜表示される。 The display screen (31) displays the operation state of the air conditioner (10), and is constituted by, for example, a dot matrix type liquid crystal display panel. Further, as shown in FIGS. 2 to 4, the display screen (31) is provided with a refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Further, as shown in FIGS. 2 to 4, a basic screen (51), a menu screen (52), a service screen (53), and the like are appropriately displayed on the display screen (31).
　カーソル移動ボタン（34）は、メニュー画面（52）中の任意の項目を指示するカーソル（33）を移動させるときに操作するボタンである。また、カーソル移動ボタン（34）は、上下左右の各方向を示す４つのマークが表示されており、マークを押圧することにより、そのマークに対応した方向にカーソル（33）が移動するように構成されている。 The cursor movement button (34) is a button operated when moving the cursor (33) indicating an arbitrary item in the menu screen (52). In addition, the cursor movement button (34) is configured to display four marks indicating each of the upper, lower, left, and right directions, and the cursor (33) is moved in a direction corresponding to the mark by pressing the mark. Has been.
　確定ボタン（35）は、カーソル（33）が指示するメニューの項目を決定するときに操作するボタンである。また、確定ボタン（35）には、「メニュー／確定」と印字されており、確定ボタン（35）が押圧されるとメニュー画面（52）が表示され、メニュー画面（52）から項目を選択して再び確定ボタン（35）を押圧するとその項目が実行される。 The confirmation button (35) is a button that is operated when determining the menu item indicated by the cursor (33). Also, “Menu / Confirm” is printed on the confirm button (35). When the confirm button (35) is pressed, the menu screen (52) is displayed, and an item is selected from the menu screen (52). When the confirm button (35) is pressed again, the item is executed.
　運転切換ボタン（36）は、空気調和機（10）の運転モードを切り替えるときに操作するボタンである。 The operation switching button (36) is a button operated when switching the operation mode of the air conditioner (10).
　運転／停止ボタン（37）は、空気調和機（10）の運転を開始させ、又はその運転を停止させるときに操作するボタンであり、押圧する毎に開始と停止とを繰り返す。 The operation / stop button (37) is a button that is operated when the operation of the air conditioner (10) is started or stopped, and is repeatedly started and stopped each time it is pressed.
　風量調節ボタン（38）は、室内機（12）から吹出される空気量を調節するときに操作するボタンである。 The air volume adjustment button (38) is a button operated when adjusting the amount of air blown from the indoor unit (12).
　キャンセルボタン（39）は、確定ボタン（35）等で設定した内容を無効にするときに操作するボタンである。 The cancel button (39) is a button operated when invalidating the content set with the confirm button (35) or the like.
　　　＜制御部の動作＞
　表示制御部（32）は、異常発生時に、冷媒回路（20）に使用されている冷媒（即ち、冷媒回路（20）に封入されている冷媒）を表示画面（31）に表示するように構成されている。具体的に、表示制御部（32）は、空気調和機（10）の冷房運転や暖房運転を行っている間に、例えば、圧縮機（21）に過電流が流れる等の異常が発生すると、室外機（11）及び室内機（12）から冷媒情報を収集する。表示制御部（32）は、収集した冷媒情報に基づいて、冷媒回路（20）に使用されている冷媒を決定する。そして、表示制御部（32）は、冷媒回路（20）に使用されている冷媒と、室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とを表示画面（31）のサービス画面（53）に表示させる。 <Operation of control unit>
The display control unit (32) is configured to display the refrigerant used in the refrigerant circuit (20) (that is, the refrigerant sealed in the refrigerant circuit (20)) on the display screen (31) when an abnormality occurs. Has been. Specifically, when an abnormality such as an overcurrent flowing through the compressor (21) occurs during the cooling operation or heating operation of the air conditioner (10), the display control unit (32) Collect refrigerant information from outdoor unit (11) and indoor unit (12). The display control unit (32) determines the refrigerant used in the refrigerant circuit (20) based on the collected refrigerant information. The display control unit (32) displays the refrigerant used in the refrigerant circuit (20), the model names of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs. Display on the service screen (53) of (31).
　表示制御部（32）の動作について、図５を参照しながら詳細に説明する。ここで、図５は、表示制御部（32）での冷媒の決定方法を示す表である。 The operation of the display control unit (32) will be described in detail with reference to FIG. Here, FIG. 5 is a table showing a refrigerant determination method in the display control unit (32).
　図５の接続例１の場合、室外機（11）は、Ｒ４１０Ａだけを冷媒情報として記憶し、室内機（12）は、Ｒ４１０Ａだけを冷媒情報として記憶している。表示制御部（32）は、室外機（11）の冷媒情報（Ｒ４１０Ａ）と室内機（12）の冷媒情報（Ｒ４１０Ａ）とが一致するので、冷媒回路（20）に使用されている冷媒をＲ４１０Ａと決定する。冷媒回路（20）に使用されている冷媒がＲ４１０Ａである場合、表示制御部（32）は、表示画面（31）の冷媒表示専用領域（40）に冷媒の種類を表示させない。 In the case of connection example 1 in FIG. 5, the outdoor unit (11) stores only R410A as refrigerant information, and the indoor unit (12) stores only R410A as refrigerant information. Since the refrigerant information (R410A) of the outdoor unit (11) matches the refrigerant information (R410A) of the indoor unit (12), the display control unit (32) determines that the refrigerant used in the refrigerant circuit (20) is R410A. And decide. When the refrigerant used in the refrigerant circuit (20) is R410A, the display control unit (32) does not display the type of refrigerant in the refrigerant display dedicated area (40) of the display screen (31).
　ここで、Ｒ４１０Ａは、空気調和機用の冷媒として一般的に使用されている。そのため、空気調和機の修理を行う保守作業者は、Ｒ４１０Ａに対応する器材を携行しているのが通常である。したがって、冷媒回路（20）に使用されている冷媒がＲ４１０Ａである場合は、冷媒回路（20）の使用冷媒が予め保守作業者に伝わっていなくても、保守作業者は、すぐに修理作業に着手できる。そのため、冷媒回路（20）に使用されている冷媒がＲ４１０Ａである場合、本実施形態の表示制御部（32）は、冷媒表示専用領域（40）に冷媒の種類（この場合はＲ４１０Ａ）を表示させない。 Here, R410A is generally used as a refrigerant for air conditioners. Therefore, the maintenance worker who repairs the air conditioner usually carries equipment corresponding to R410A. Therefore, when the refrigerant used in the refrigerant circuit (20) is R410A, the maintenance worker can immediately perform repair work even if the refrigerant used in the refrigerant circuit (20) is not transmitted to the maintenance worker in advance. You can start. Therefore, when the refrigerant used in the refrigerant circuit (20) is R410A, the display control unit (32) of the present embodiment displays the type of refrigerant (in this case, R410A) in the refrigerant display dedicated area (40). I won't let you.
　図５の接続例２の場合、室外機（11）は、Ｒ４１０Ａだけを冷媒情報として記憶し、室内機（12）は、Ｒ４１０Ａ及びＲ３２を冷媒情報として記憶している。表示制御部（32）は、室内機（12）が複数の冷媒情報を記憶しているので、その記憶されている複数の冷媒情報のうち室外機（11）の冷媒情報と一致する冷媒を室内機（12）で使用されている冷媒と判断する。この接続例２の場合、表示制御部（32）は、室外機（11）の冷媒情報（Ｒ４１０Ａ）と室内機（12）の冷媒情報の一方（Ｒ４１０Ａ）とが一致するので、冷媒回路（20）に使用されている冷媒をＲ４１０Ａと決定する。冷媒回路（20）に使用されている冷媒がＲ４１０Ａである場合、表示制御部（32）は、表示画面（31）の冷媒表示専用領域（40）に冷媒の種類（この場合はＲ４１０Ａ）を表示させない。 In the case of connection example 2 in FIG. 5, the outdoor unit (11) stores only R410A as refrigerant information, and the indoor unit (12) stores R410A and R32 as refrigerant information. In the display control unit (32), since the indoor unit (12) stores a plurality of pieces of refrigerant information, the refrigerant that matches the refrigerant information of the outdoor unit (11) among the plurality of pieces of refrigerant information stored in the room is displayed. Judged as the refrigerant used in the machine (12). In the case of this connection example 2, since the refrigerant information (R410A) of the outdoor unit (11) matches one of the refrigerant information (R410A) of the indoor unit (12), the display control unit (32) matches the refrigerant circuit (20 ) Is determined as R410A. When the refrigerant used in the refrigerant circuit (20) is R410A, the display control unit (32) displays the type of refrigerant (in this case, R410A) in the refrigerant display dedicated area (40) of the display screen (31). I won't let you.
　図５の接続例３の場合、室外機（11）は、Ｒ３２だけを冷媒情報として記憶し、室内機（12）は、Ｒ４１０Ａ及びＲ３２を冷媒情報として記憶している。表示制御部（32）は、室内機（12）が複数の冷媒情報を記憶しているので、その記憶されている複数の冷媒情報のうち室外機（11）の冷媒情報と一致する冷媒を室内機（12）で使用されている冷媒と判断する。この接続例３の場合、表示制御部（32）は、室外機（11）の冷媒情報（Ｒ３２）と室内機（12）の冷媒情報の一方（Ｒ３２）とが一致するので、冷媒回路（20）に使用されている冷媒をＲ３２と決定する。冷媒回路（20）に使用されている冷媒がＲ３２である場合、表示制御部（32）は、表示画面（31）の冷媒表示専用領域（40）に冷媒の種類（この場合はＲ３２）を表示させる。 In the case of connection example 3 in FIG. 5, the outdoor unit (11) stores only R32 as refrigerant information, and the indoor unit (12) stores R410A and R32 as refrigerant information. In the display control unit (32), since the indoor unit (12) stores a plurality of pieces of refrigerant information, the refrigerant that matches the refrigerant information of the outdoor unit (11) among the plurality of pieces of refrigerant information stored in the room is displayed. Judged as the refrigerant used in the machine (12). In the case of this connection example 3, since the refrigerant | coolant information (R32) of an outdoor unit (11) and the refrigerant | coolant information (R32) of an indoor unit (12) correspond, the display control part (32) matches a refrigerant circuit (20 ) Is determined as R32. When the refrigerant used in the refrigerant circuit (20) is R32, the display control unit (32) displays the type of refrigerant (in this case, R32) in the refrigerant display dedicated area (40) of the display screen (31). Let
　ここで、Ｒ３２単体は、近年、空気調和機用の冷媒として使用され始めている。そのため、空気調和機の修理を行う保守作業者は、Ｒ３２に対応する器材を携行していない可能性がある。したがって、冷媒回路（20）に使用されている冷媒がＲ３２である場合は、冷媒回路（20）の使用冷媒が予め保守作業者に伝わっていないと、保守作業者は、すぐに修理作業に着手できないおそれがある。そのため、冷媒回路（20）に使用されている冷媒がＲ３２である場合、本実施形態の表示制御部（32）は、冷媒表示専用領域（40）に冷媒の種類（この場合はＲ３２）を表示させる。 Here, R32 alone has recently been used as a refrigerant for air conditioners. Therefore, there is a possibility that a maintenance worker who repairs the air conditioner does not carry equipment corresponding to R32. Therefore, when the refrigerant used in the refrigerant circuit (20) is R32, if the refrigerant used in the refrigerant circuit (20) is not transmitted to the maintenance worker in advance, the maintenance worker immediately starts repair work. It may not be possible. Therefore, when the refrigerant used in the refrigerant circuit (20) is R32, the display control unit (32) of the present embodiment displays the type of refrigerant (in this case, R32) in the refrigerant display dedicated area (40). Let
　図５の接続例４の場合、室外機（11）は、Ｒ４１０Ａだけを冷媒情報として記憶し、室内機（12）は、Ｒ３２だけを冷媒情報として記憶している。表示制御部（32）は、室外機（11）の冷媒情報（Ｒ４１０Ａ）と室内機（12）の冷媒情報（Ｒ３２）とが一致しないので、室外機（11）及び室内機（12）で使用可能な冷媒が一致しない旨（例えば、「冷媒不一致」の文字）を表示画面（31）に表示させる。なお、表示画面（31）には、「冷媒不一致」の文字の代わりに、エラーコード等を表示させてもよい。 In the case of connection example 4 in FIG. 5, the outdoor unit (11) stores only R410A as refrigerant information, and the indoor unit (12) stores only R32 as refrigerant information. The display control unit (32) is used in the outdoor unit (11) and the indoor unit (12) because the refrigerant information (R410A) of the outdoor unit (11) does not match the refrigerant information (R32) of the indoor unit (12). A message indicating that the possible refrigerants do not match (for example, “refrigerant mismatch”) is displayed on the display screen (31). In addition, an error code or the like may be displayed on the display screen (31) instead of the characters “refrigerant mismatch”.
　図５の接続例５の場合、室外機（11）は、Ｒ３２だけを冷媒情報として記憶し、室内機（12）は、Ｒ４１０Ａだけを冷媒情報として記憶している。表示制御部（32）は、室外機（11）の冷媒情報（Ｒ３２）と室内機（12）の冷媒情報（Ｒ４１０Ａ）とが一致しないので、室外機（11）及び室内機（12）で使用可能な冷媒が一致しない旨（例えば、「冷媒不一致」の文字）を表示画面（31）に表示させる。なお、表示画面（31）には、「冷媒不一致」の文字の代わりに、エラーコード等を表示させてもよい。 In the case of connection example 5 in FIG. 5, the outdoor unit (11) stores only R32 as refrigerant information, and the indoor unit (12) stores only R410A as refrigerant information. The display control unit (32) is used in the outdoor unit (11) and the indoor unit (12) because the refrigerant information (R32) of the outdoor unit (11) and the refrigerant information (R410A) of the indoor unit (12) do not match. A message indicating that the possible refrigerants do not match (for example, “refrigerant mismatch”) is displayed on the display screen (31). In addition, an error code or the like may be displayed on the display screen (31) instead of the characters “refrigerant mismatch”.
　上述したように、表示制御部（32）は、空気調和機（10）の運転中に異常が発生した場合に、冷媒回路（20）に使用されている冷媒を決定する。この場合は、異常が発生するまでに空気調和機（10）が正常に作動していたので、図５の接続例４及び５のような室外機（11）及び室内機（12）で使用可能な冷媒が一致しない状況は、起こりえない。 As described above, the display control unit (32) determines the refrigerant used in the refrigerant circuit (20) when an abnormality occurs during the operation of the air conditioner (10). In this case, since the air conditioner (10) was operating normally before the abnormality occurred, it can be used with the outdoor unit (11) and the indoor unit (12) as in connection examples 4 and 5 in FIG. A situation in which different refrigerants do not match is unlikely.
　ところが、空気調和機（10）の据付時には、室外機（11）と室内機（12）との組み合わせを間違える場合があり、そのような場合には、室外機（11）及び室内機（12）で使用可能な冷媒が一致しない状況が起こりうる。そこで、本実施形態の表示制御部（32）は、空気調和機（10）の運転中に異常が発生した場合だけでなく、空気調和機（10）の据付時にも、室外機（11）及び室内機（12）の冷媒情報を対比して両者が一致するか否かを判断する動作を行う。 However, when installing the air conditioner (10), the combination of the outdoor unit (11) and the indoor unit (12) may be wrong. In such a case, the outdoor unit (11) and the indoor unit (12) There may be situations where the available refrigerants do not match. Therefore, the display control unit (32) of the present embodiment is not limited to when an abnormality occurs during operation of the air conditioner (10), but also when the air conditioner (10) is installed, The refrigerant | coolant information of an indoor unit (12) is contrasted and the operation | movement which judges whether both correspond is performed.
　空気調和機（10）の据付時において、表示制御部（32）は、空気調和機（10）の異常発生時と同様な動作を行って冷媒回路（20）に使用可能な冷媒を決定し、決定した冷媒を表示画面（31）に表示させる。これにより、冷媒回路（20）に適切な冷媒を充填することができる。また、表示制御部（32）は、室外機（11）及び室内機（12）の冷媒情報が一致しない場合、その旨を表示画面（31）に表示させる。これにより、室外機（11）と室内機（12）との組み合わせを間違えることなく、トラブルを未然に防止することができる。 At the time of installation of the air conditioner (10), the display control unit (32) determines the refrigerant that can be used in the refrigerant circuit (20) by performing the same operation as when the abnormality of the air conditioner (10) occurs. The determined refrigerant is displayed on the display screen (31). As a result, the refrigerant circuit (20) can be filled with an appropriate refrigerant. Further, when the refrigerant information of the outdoor unit (11) and the indoor unit (12) do not match, the display control unit (32) displays that fact on the display screen (31). Thereby, a trouble can be prevented beforehand without making a mistake in the combination of an outdoor unit (11) and an indoor unit (12).
　　　―実施形態の効果―
　以上説明したように、本実施形態の空気調和機（10）において、表示制御部（32）は、冷媒回路（20）に異常が発生した際に、室外機（11）及び室内機（12）からそれぞれに記憶された冷媒情報を収集し、その冷媒情報に基づいて冷媒回路（20）に使用されている冷媒を決めてリモートコントローラ（30）の表示画面（31）に表示させるように構成されている。そのため、サービスセンター等にユーザーが連絡する際には、室外機及び室内機に設けられた表示手段（表示ラベルや表示ランプ等）を確認することなく、リモートコントローラ（30）の表示画面（31）に表示された冷媒の種類を見るだけで、ユーザーは、冷媒回路（20）に使用されている冷媒を把握することができる。 -Effect of the embodiment-
As described above, in the air conditioner (10) of the present embodiment, the display control unit (32) is configured such that when an abnormality occurs in the refrigerant circuit (20), the outdoor unit (11) and the indoor unit (12) The refrigerant information stored in each is collected, and the refrigerant used in the refrigerant circuit (20) is determined based on the refrigerant information and displayed on the display screen (31) of the remote controller (30). ing. Therefore, when the user contacts the service center, the display screen (31) of the remote controller (30) without checking the outdoor unit and the display means (display label, display lamp, etc.) provided on the indoor unit. The user can grasp the refrigerant used in the refrigerant circuit (20) only by looking at the type of refrigerant displayed on the screen.
　ここで、従来の空気調和機のリモートコントローラでは、冷媒回路に使用されている冷媒を表示させるまでに、例えば、表示画面上でカーソルを移動させることにより、階層構造のメニューにおける項目を適宜選択する操作が必要である。これに対し、本実施形態の空気調和機（10）によれば、ユーザーは、リモートコントローラ（30）のボタン（34～39）を操作しなくても、冷媒回路（20）に使用されている冷媒を把握することができる。 Here, in the conventional remote controller of the air conditioner, before displaying the refrigerant used in the refrigerant circuit, for example, by moving the cursor on the display screen, the items in the hierarchical menu are appropriately selected. Operation is required. On the other hand, according to the air conditioner (10) of the present embodiment, the user is used in the refrigerant circuit (20) without operating the buttons (34 to 39) of the remote controller (30). The refrigerant can be grasped.
　したがって、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒をユーザーに確実に把握させることができる。そして、これにより、空気調和機（10）の修理を行う保守作業者は、冷媒回路（20）に使用されている冷媒に対応する器材等を事前に準備することができ、修理作業の効率を向上させることができる。 Therefore, when an abnormality occurs in the refrigerant circuit (20), the user can surely grasp the refrigerant used in the refrigerant circuit (20). As a result, the maintenance worker who repairs the air conditioner (10) can prepare in advance equipment and the like corresponding to the refrigerant used in the refrigerant circuit (20), thereby improving the efficiency of the repair work. Can be improved.
　また、本実施形態の空気調和機（10）によれば、表示制御部（32）は、冷媒回路（20）に異常が発生した際に、冷媒回路（20）に使用されている冷媒と、室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とをリモートコントローラ（30）の表示画面（31）に表示するように構成されている。そのため、サービスセンター等にユーザーが連絡する際には、リモートコントローラ（30）の表示画面（31）に表示された情報を見るだけで、ユーザーは、冷媒回路（20）に使用されている冷媒の種類と、室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とを同時に把握することができる。 Further, according to the air conditioner (10) of the present embodiment, the display control unit (32), when an abnormality occurs in the refrigerant circuit (20), the refrigerant used in the refrigerant circuit (20), The model names of the outdoor unit (11) and the indoor unit (12) and the contact information when an abnormality occurs are displayed on the display screen (31) of the remote controller (30). Therefore, when the user contacts the service center or the like, the user only needs to look at the information displayed on the display screen (31) of the remote controller (30), and the user can select the refrigerant used in the refrigerant circuit (20). It is possible to simultaneously grasp the type, the name of each model of the outdoor unit (11) and the indoor unit (12), and the contact information when an abnormality occurs.
　また、本実施形態の空気調和機（10）によれば、リモートコントローラ（30）の表示画面（31）に表示可能な冷媒には、少なくともＲ３２が含まれているので、ユーザーは、冷媒回路（20）に使用されている冷媒がＲ４１０Ａ（従前より一般的に使用されてきた冷媒）でなくＲ３２単体（近年、使用され始めた冷媒）であることを把握することができる。そして、これにより、空気調和機（10）の修理を行う保守作業者は、Ｒ３２に対応する器材等を事前に準備することができ、修理作業の効率を向上させることができる。 Moreover, according to the air conditioner (10) of this embodiment, since the refrigerant | coolant which can be displayed on the display screen (31) of a remote controller (30) contains at least R32, a user is a refrigerant circuit ( It can be understood that the refrigerant used in 20) is not R410A (a refrigerant generally used from before) but a single R32 (a refrigerant that has started to be used in recent years). As a result, the maintenance worker who repairs the air conditioner (10) can prepare the equipment and the like corresponding to R32 in advance, and can improve the efficiency of the repair work.
　また、本実施形態の空気調和機（10）によれば、表示画面（31）がドットマトリクス方式であるので、表示画面（31）上に種々の情報を表示することができる。しかし、本実施形態の空気調和機（10）では、表示画面（31）に冷媒回路（20）に使用されている冷媒だけを表示する冷媒表示専用領域（40）が設けられている。そのため、表示画面（31）上で他の種々の情報と競合することなく、冷媒回路（20）に使用されている冷媒を明確に表示することができる。 Further, according to the air conditioner (10) of the present embodiment, since the display screen (31) is a dot matrix system, various information can be displayed on the display screen (31). However, in the air conditioner (10) of this embodiment, the display screen (31) is provided with the refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20). Therefore, the refrigerant used in the refrigerant circuit (20) can be clearly displayed on the display screen (31) without competing with other various information.
　《その他の実施形態》
　上記実施形態１の空気調和機（10）は、１台の室外機（11）と、１台の室内機（12）とを備えているが、この空気調和機（10）は、１台の室外機と、複数台の室内機とを備えていてもよい。この場合、室外機で使用可能な冷媒と、各室内機で使用可能な冷媒のうち共通する冷媒との間で一致する冷媒を冷媒回路に使用されている冷媒とすればよい。 << Other Embodiments >>
Although the air conditioner (10) of the first embodiment includes one outdoor unit (11) and one indoor unit (12), the air conditioner (10) includes one unit. An outdoor unit and a plurality of indoor units may be provided. In this case, a refrigerant that matches between a refrigerant that can be used in the outdoor unit and a common refrigerant among the refrigerants that can be used in each indoor unit may be used as the refrigerant used in the refrigerant circuit.
　また、上記実施形態１では、リモートコントローラ（30）の表示画面（31）の冷媒表示専用領域（40）にＲ３２を表示する空気調和機（10）を例示したが、リモートコントローラ（30）の表示画面（31）の冷媒表示専用領域（40）には、例えば、Ｒ３２だけでなくＲ４１０Ａをも表示してもよい。この場合、図３の接続例１及び２では、「Ｒ４１０Ａ」が表示画面（31）の冷媒表示専用領域（40）に表示される。 Moreover, in the said Embodiment 1, although the air conditioner (10) which displays R32 in the refrigerant | coolant display exclusive area | region (40) of the display screen (31) of a remote controller (30) was illustrated, the display of a remote controller (30) is illustrated. In the refrigerant display exclusive area (40) of the screen (31), for example, not only R32 but also R410A may be displayed. In this case, in connection examples 1 and 2 of FIG. 3, “R410A” is displayed in the refrigerant display dedicated area (40) of the display screen (31).
　また、上記実施形態１では、冷媒回路（20）に異常が発生した際に、リモートコントローラ（30）を操作することなく、リモートコントローラ（30）の表示画面（31）に冷媒回路（20）に使用されている冷媒を表示させる空気調和機（10）を例示したが、リモートコントローラで１回の入力操作を行うことにより、冷媒を表示させてもよい。 In the first embodiment, when an abnormality occurs in the refrigerant circuit (20), the display screen (31) of the remote controller (30) is displayed on the refrigerant circuit (20) without operating the remote controller (30). Although the air conditioner (10) that displays the refrigerant used is illustrated, the refrigerant may be displayed by performing a single input operation with the remote controller.
　なお、上記各実施形態は、本質的に好ましい例示であって、本発明、その適用物又はその用途の範囲を制限することを意図するものではない。 In addition, each said embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or its use.
　以上説明したように、本発明は、冷媒回路に使用されている冷媒をユーザーに確実に把握させることができるので、空気調和機について有用である。 As described above, the present invention is useful for an air conditioner because the user can surely grasp the refrigerant used in the refrigerant circuit.
１０　　空気調和機
１１　　室外機
１２　　室内機
２０　　冷媒回路
３０　　リモートコントローラ
３１　　表示画面
３２　　制御部
４０　　冷媒表示専用領域 DESCRIPTION OF SYMBOLS 10 Air conditioner 11 Outdoor unit 12 Indoor unit 20 Refrigerant circuit 30 Remote controller 31 Display screen 32 Control part 40 Refrigerant display exclusive area

Claims (5)

  1. 　室外機（11）及び室内機（12）が設けられた冷媒回路（20）と、
    　上記室外機（11）及び室内機（12）に通信可能に設けられ、表示画面（31）を有するリモートコントローラ（30）とを備えた空気調和機であって、
    　上記室外機（11）及び室内機（12）は、それぞれが使用可能な冷媒を示す冷媒情報を記憶するように構成され、
    　上記冷媒回路（20）に異常が発生した際に、上記室外機（11）及び室内機（12）から上記冷媒情報を収集し、収集した該冷媒情報に基づいて上記冷媒回路（20）に使用されている冷媒を決めて上記表示画面（31）に表示させるように構成された表示制御部（32）を備えていることを特徴とする空気調和機。     A refrigerant circuit (20) provided with an outdoor unit (11) and an indoor unit (12);
    An air conditioner provided with a remote controller (30) having a display screen (31) provided to be communicable with the outdoor unit (11) and the indoor unit (12),
    The outdoor unit (11) and the indoor unit (12) are configured to store refrigerant information indicating refrigerants that can be used,
    When an abnormality occurs in the refrigerant circuit (20), the refrigerant information is collected from the outdoor unit (11) and the indoor unit (12) and used in the refrigerant circuit (20) based on the collected refrigerant information. An air conditioner comprising: a display control unit (32) configured to determine a refrigerant that is used and display the refrigerant on the display screen (31).
  2. 　請求項１において、
    　上記表示制御部（32）は、上記室外機（11）及び室内機（12）の各機種名と、異常発生時の連絡先とを、上記冷媒回路（20）に使用されている冷媒と共に上記表示画面（31）に表示するように構成されていることを特徴とする空気調和機。     In claim 1,
    The display control unit (32) displays the model names of the outdoor unit (11) and the indoor unit (12) and the contact information at the time of occurrence of an abnormality together with the refrigerant used in the refrigerant circuit (20). An air conditioner configured to display on a display screen (31).
  3. 　請求項１又は２において、
    　上記表示画面（31）に表示可能な冷媒には、少なくともＲ３２が含まれていることを特徴とする空気調和機。     In claim 1 or 2,
    The air conditioner characterized in that the refrigerant that can be displayed on the display screen (31) contains at least R32.
  4. 　請求項１～３の何れか１つにおいて、
    　上記表示画面（31）は、ドットマトリクス方式であり、
    　上記表示画面（31）には、上記冷媒回路（20）に使用されている冷媒だけを表示する冷媒表示専用領域（40）が設けられていることを特徴とする空気調和機。     In any one of claims 1 to 3,
    The display screen (31) is a dot matrix method,
    The air conditioner characterized in that the display screen (31) is provided with a refrigerant display dedicated area (40) for displaying only the refrigerant used in the refrigerant circuit (20).
  5. 　請求項１～４の何れか１つにおいて、
    　上記表示制御部（32）は、上記室外機（11）で使用可能な冷媒が１種類であり、上記室内機（12）で使用可能な冷媒が複数種類である場合には、上記室外機（11）で使用可能な冷媒が上記室内機（12）で使用可能な冷媒の何れか１つと一致するときに、上記室外機（11）で使用可能な冷媒を上記冷媒回路（20）に使用されている冷媒とするように構成されていることを特徴とする空気調和機。     In any one of claims 1 to 4,
    The display control unit (32) has one type of refrigerant that can be used in the outdoor unit (11), and when there are multiple types of refrigerant that can be used in the indoor unit (12), the outdoor unit (32) When the refrigerant usable in 11) matches one of the refrigerants usable in the indoor unit (12), the refrigerant usable in the outdoor unit (11) is used in the refrigerant circuit (20). It is comprised so that it may become the refrigerant | coolant which is characterized by the above-mentioned.
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