JP4043244B2 - Air conditioner - Google Patents
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Description
【０００１】
【発明の属する技術分野】
この発明は、空気調和装置据え付け時の接続状態または動作状態の良否を自動診断する技術、および設置された周囲条件に合わせて空気調和の制御定数を自動設定する技術に関する。
【０００２】
【従来の技術】
冷媒を使用し、室内機と室外機とからなるセパレート型の空気調和装置（エアコンディショナ）は、施工者による据え付け時に室内機と室外機との間の配管工事および電源工事並びに冷媒充填工事が行われる。そして据え付け工事終了後、施工者が接続状態の確認、操作弁の開かれていることの確認、ガス圧のチェック等を行い、異常がなければ元電源を投入して実際に装置を運転して各運転モードの動作を確認していた。
【０００３】
【発明が解決しようとする課題】
ところが上述の方法では、機器内部のセンサの断線等の事故があったり、操作弁の確認ミスやガス圧のチェックミス等があったりすると、所定の空気調和性能が得られなかったり、ガス漏れによって冷媒が失われることになったり、最悪の場合には圧縮機の損傷に結びつく虞があるという課題があった。また、冷媒を通す配管の太さや長さの違い並びに室内機と室外機の高低差などによる電子制御弁の制御定数の再設定や、室内機の吹き出し口付近の空気の流路によって異なる室温制御定数の再設定等は行われないことがあり、設置条件に最適な安定で応答性の良い運転が行われない虞があるという課題があった。
【０００４】
本発明はこのような背景の下になされたもので、据え付け後の初運転時に必要な項目の診断を自動的に行い、設置条件に最適な制御定数に自動設定することができる空気調和装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１に記載の発明は、室内機と室外機とからなる空気調和装置において、該空気調和装置の接続状態または動作状態の良否を診断する自動診断手段と、前記空気調和装置の設置された周囲条件に合わせて空気調和の制御定数を自動設定する制御定数自動設定手段とを具備し、前記自動診断手段は、冷媒の流路のうち前記室外機の操作弁が開かれていることを確認する操作弁確認手段と、前記冷媒のガス圧が保たれていることを確認するガス圧確認手段と、温度または湿度を検出するセンサが導通していることを確認するセンサ確認手段と、前記冷媒を圧縮する圧縮機の動作を確認する圧縮機確認手段と、前記冷媒を気化させる電子膨張弁の動作を確認する膨張弁確認手段と、冷房動作と暖房動作とを切り替える４方弁の動作を確認する４方弁確認手段と、前記室内機または前記室外機の送風機の動作を確認する送風機確認手段とを備え、前記制御定数自動設定手段は、配管の長さによって異なる前記電子膨張弁の制御定数を自動設定する膨張弁制御定数設定手段および／または前記室内機の吹き出し口付近の空気の流路によって異なる室温制御定数を自動設定する室温制御定数設定手段を備え、前記空気調和装置の据え付けを終了して元電源を投入したとき、前記自動診断手段は、前記操作弁確認手段、前記ガス圧確認手段、前記センサ確認手段、前記圧縮機確認手段による自動診断を順次行い、続いて前記膨張弁確認手段、前記４方弁確認手段、前記送風機確認手段による自動診断を順次行い、前記自動診断手段による診断終了後に、前記制御定数自動設定手段が、順次前記制御定数の自動設定を行うことを特徴とする空気調和装置を提供する。
【０００６】
この発明によれば、室内機と室外機とからなる空気調和装置の据え付けを終了して元電源を投入したとき、接続状態または動作状態の良否を診断する自動診断手段と、設置された周囲条件に合わせて空気調和の制御定数を自動設定する制御定数自動設定手段とによって自動的に、配管の接続状態や、冷媒のガス圧、センサの断線の有無、圧縮機の動作、電子膨張弁の動作、４方弁の動作、および室内機や室外機の送風機の動作等の接続状態または動作状態の良否を診断することができ、また、電子膨張弁の制御定数の自動設定および／または室温制御定数の自動設定を行わせることができ、設置条件に合わせて空気調和装置が最適な動作を行うように制御定数を自動設定することができる。したがって、空気調和装置を設置条件に合わせて最適な状態にすることができる。なお、本願発明における「空気調和装置の据え付け」とは、空気調和装置を最初に据え付けをした場合に限らず、既に据え付けられていた空気調和装置を移設して、移設先で改めて空気調和装置を据え付ける場合も含むものである。
【０００７】
請求項２に記載の発明は、請求項１記載の空気調和装置において、前記自動診断手段によって診断された診断結果、及び又は前記制御定数自動設定手段に設定された設定結果を出力する出力器を具備することを特徴とする。
【０００８】
この発明によれば、自動診断結果や、制御定数の自動設定結果を表示器に表示させることによって目視により容易に結果の確認を行うことができ、不完全な状態で運転を開始してしまう虞がなくなる。
【０００９】
【発明の実施の形態】
以下、この発明の一実施の形態について図を参照しながら説明する。図１はこの発明の一実施の形態による空気調和装置のうち、自動診断手段と制御定数自動設定手段のみを表示した図である。この図の符号１０は空気調和装置であり、符号１００は自動診断手段、符号２００は制御定数自動設定手段を示し、その他の室内機および室外機の本体の構成のすべての図示を省略してある。
【００１０】
自動診断手段１００は、操作弁「開」確認手段１、ガス圧確認手段２、センサ接続確認手段３、圧縮機動作確認手段４、電子膨張弁動作確認手段５、４方弁動作確認手段６および送風機動作確認手段７からなる。制御定数自動設定手段２００は、電子膨張弁制御定数自動設定手段８および室温制御定数自動設定手段９からなる。
【００１１】
自動診断手段１００のうち操作弁「開」確認手段１は、冷媒の流路のうち室外機の操作弁が開かれていることを確認する手段であり、この操作弁が「開」になっていないと空気調和装置が正常に動作しないばかりか、圧縮機に余計な圧力抵抗がかかるために最悪の場合は圧縮機の損傷を招くことにもなる。ガス圧確認手段２は、室内機と室外機とを接続する冷媒の配管の接続が正規に行われ、冷媒の正常なガス圧が保たれていることを確認する手段である。冷媒が正常なガス圧を有していれば，冷媒のリークがないものとみなすことができる。センサ接続確認手段３は、室内外の温度および室内の湿度を検出するセンサ、その他のセンサが制御装置に正常に接続（導通）されていることを確認する手段であり、空気調和装置はこれらのセンサによる検出値に基づいて、冷房または暖房の制御を行う。圧縮機動作確認手段４は、冷媒を圧縮する圧縮機の動作を確認する手段である。電子膨張弁動作確認手段５は、圧縮された冷媒を気化させる電子膨張弁の動作を確認する手段である。４方弁動作確認手段６は、冷房または暖房動作の切り替えを行う４方弁の動作を確認する手段である。送風機動作確認手段７は、室内機または室外機に設けてある送風機の動作を確認する手段である。
【００１２】
制御定数自動設定手段２００のうち電子膨張弁制御定数自動設定手段８は、室内機と室外機とを接続する配管の長さによって異なる電子膨張弁の制御定数を自動設定する手段であり、ステップ応答から時定数を求めて制御定数を決定する。室温制御定数自動設定手段９は、室内機の空気吹き出し口付近に家具等が置かれている等で吹き出し空気の一部が直接室内機に戻っているか否かによって異なる室温制御定数を自動設定する手段である。
【００１３】
次に図２を参照して上述した自動診断手段１００および制御定数自動設定手段２００の動作フローについて説明する。ステップＳ１において、空気調和装置を据え付けた後の最初の元電源の投入か否かを判断し、Ｙｅｓであったとき自動診断および自動定数設定のルーチンに移る。ステップＳ２において、第１番目の診断項目である操作弁「開」確認手段１から開始するために、変数ｉに１を代入する。ステップＳ３において、ｉ番目（ここでは１番目、以下同じ）の項目の処理中であることを表示する。ステップＳ４において、ｉ番目の項目の処理を行う。ステップＳ５において、ｉ番目の項目の処理結果が正常であったか否かを判断し、Ｙｅｓであれば、ステップＳ６においてｉ番目の項目が正常であることを表示する。ステップＳ７において、ｉ番目の項目が最後の項目であるか否かを判断し、ＮｏなのでステップＳ８に移行する。
【００１４】
ステップＳ８において、ｉを１だけインクリメント（ｉｎｃｒｅｍｅｎｔ）して２とし、ステップＳ３からステップＳ８において２番目の診断項目であるガス圧確認手段２に関する処理を行う。なお，インクリメントとは，プログラミングで，繰り返し処理などの際に数値をまとまった大きさで増加することを意味する。以下、同様に変数ｉが７の送風機動作確認手段７まで終了すると、変数ｉを１だけインクリメントして８とし、制御定数の自動設定に移る。電子膨張弁制御定数自動設定手段８および室温制御定数自動設定手段９による制御定数の設定もステップＳ３からステップＳ７のルーチン（ｒｕｔｉｎｅ）によって行う。なお，ルーチンとは，コンピュータのプログラムの部分をなし，ある機能を持った一連の命令群を意味する。変数ｉが９の室温制御定数自動設定手段９の処理が終了すると、ステップＳ７において最後の処理項目となるので、このステップの判断はＹｅｓとなり、ステップＳ８に移行して正常運転を行う。
【００１５】
前記ステップＳ１において、空気調和装置を据え付けた後の最初の元電源の投入か否かの判断結果がＮｏであったときは、ステップＳ９に移行して正常運転を行う。通常の運転時は、いつもこの状態となる。また、各処理項目の処理結果が正常でなかったときは、前記ステップＳ５における判断がＮｏとなって処理をステップＳ１０に移し、ｉ番目異常を表示し、ステップＳ１０で運転を停止する。このときは、据え付け工事の内容を点検して修復した後、再度据え付け後の最初の元電源投入の処理を行うことになる。このため、不完全な据え付け工事のまま、据え付け終了となる虞がなくなる。
【００１６】
以上、本発明の一実施の形態の動作を図面を参照して詳述してきたが、本発明はこの実施の形態に限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等があっても本発明に含まれる。たとえば、自動診断および自動制御定数設定の項目は上述の実施の形態による項目に限られるものではなく、他の項目が追加されても良いし、不要な項目を除外したものであっても良い。また、自動診断手段または制御定数自動設定手段は、空気調和装置の室内機または室外機に内蔵したものではなく、持ち運び可能な構成の独立した診断装置として必要に応じて空気調和装置に接続して自動診断および自動制御定数設定を行う構成のものであっても本発明に含まれる。
【００１７】
なお、本実施形態における発明は、空気調和装置を新たに設置する場合に限らず、既に設置されている空気調和装置を移設先に改めて設置する場合にも、以下のように適用することができる。既設の空気調和装置を移設するために特定箇所の配線や配管が取り外された場合、この取り外された事実を検出する。これに基づいて、ステップＳ１においてＮｏとなっていた情報をクリアして、Ｙｅｓとする。そして、移設先で空気調和装置を改めて設置する際に元電源を投入した場合にステップＳ１においてＹｅｓと認識するようにする。
【００１８】
【発明の効果】
これまでに説明したように、本発明によれば以下に示す効果が得られる。請求項１の発明によれば、室内機と室外機とからなる空気調和装置の据え付けを終了して元電源を投入したとき、接続状態または動作状態の良否を診断する自動診断手段と、設置された周囲条件に合わせて空気調和の制御定数を自動設定する制御定数自動設定手段とによって自動的に、配管の接続状態や、冷媒のガス圧、センサの断線の有無、圧縮機の動作、電子膨張弁の動作、４方弁の動作、および室内機や室外機の送風機の動作等の接続状態または動作状態の良否を診断することができ、また、電子膨張弁の制御定数の自動設定および／または室温制御定数の自動設定を行わせることができ、設置条件に合わせて空気調和装置が最適な動作を行うように制御定数を自動設定することができる。したがって、空気調和装置を設置条件に合わせて最適な状態にすることができる。
【００１９】
請求項２の発明によれば、自動診断結果、及び又は制御定数の自動設定結果を表示器に表示させることによって目視により容易に結果の確認を行うことができ、不完全な状態で運転を開始してしまう虞がなくなる。
【図面の簡単な説明】
【図１】 この発明の一実施の形態による空気調和装置のうち、自動診断手段と制御定数自動設定手段を表示した図。
【図２】 自動診断手段および制御定数自動設定手段の動作フロー図。
【符号の説明】
１ 操作弁「開」確認手段
２ ガス圧確認手段
３ センサ接続確認手段
４ 圧縮機動作確認手段
５ 電子膨張弁動作確認手段
６ ４方弁動作確認手段
７ 送風機動作確認手段
８ 電子膨張弁制御定数自動設定手段
９ 室温制御定数自動設定手段
１０ 空気調和装置
１００ 自動診断手段
２００ 制御定数自動設定手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for automatically diagnosing the quality of a connection state or an operating state when an air conditioner is installed, and a technique for automatically setting control constants for air conditioning in accordance with installed ambient conditions.
[0002]
[Prior art]
A separate type air conditioner (air conditioner) that uses refrigerant and consists of an indoor unit and an outdoor unit does not require piping work, power supply work, and refrigerant filling work between the indoor unit and the outdoor unit when installed by the installer. Done. After the installation work is completed, the installer checks the connection status, checks that the operation valve is open, checks the gas pressure, etc.If there is no abnormality, turn on the main power supply and actually operate the device. The operation of each operation mode was confirmed.
[0003]
[Problems to be solved by the invention]
However, in the above-described method, if there is an accident such as disconnection of the sensor inside the device, or there is a check error of the operation valve or a check error of the gas pressure, the predetermined air-conditioning performance cannot be obtained, or gas leakage There has been a problem that the refrigerant may be lost or, in the worst case, the compressor may be damaged. In addition, the control constant of the electronic control valve is reset due to the difference in the thickness and length of the piping through which the refrigerant passes and the height difference between the indoor unit and the outdoor unit, and the room temperature control varies depending on the air flow path near the outlet of the indoor unit. There is a problem that the resetting of the constants may not be performed, and there is a possibility that the stable and responsive operation optimal for the installation conditions may not be performed.
[0004]
The present invention has been made under such a background, and an air conditioner capable of automatically diagnosing necessary items at the first operation after installation and automatically setting a control constant optimal for installation conditions. The purpose is to provide.
[0005]
[Means for Solving the Problems]
According to the first aspect of the present invention, in an air conditioner comprising an indoor unit and an outdoor unit, automatic diagnosis means for diagnosing the quality of a connection state or an operating state of the air conditioner, and the air conditioner are installed. Control constant automatic setting means for automatically setting the air conditioning control constant according to the ambient conditions, and the automatic diagnosis means confirms that the operation valve of the outdoor unit is opened in the refrigerant flow path. Operating valve confirmation means, gas pressure confirmation means for confirming that the gas pressure of the refrigerant is maintained, sensor confirmation means for confirming that a sensor for detecting temperature or humidity is conducted, and the refrigerant Compressor confirmation means for confirming the operation of the compressor for compressing the refrigerant, expansion valve confirmation means for confirming the operation of the electronic expansion valve for vaporizing the refrigerant, and confirmation of the operation of the four-way valve for switching between the cooling operation and the heating operation 4 to do And the valve confirmation means, a blower confirmation means for confirming the operation of the blower of the indoor unit or the outdoor unit, the control constant automatic setting means automatically set the control constants of different said electronic expansion valve by the length of the pipe Expansion valve control constant setting means and / or room temperature control constant setting means for automatically setting different room temperature control constants depending on the air flow path in the vicinity of the air outlet of the indoor unit. When the power is turned on, the automatic diagnosis means sequentially performs automatic diagnosis by the operation valve confirmation means, the gas pressure confirmation means, the sensor confirmation means, and the compressor confirmation means, followed by the expansion valve confirmation means, 4-way valve confirmation means, sequentially performs automatic diagnosis by the blower check means, after the diagnosis end by said automatic diagnosis unit, said control constant automatic setting means, sequentially the To provide an air conditioner which is characterized in that the automatic setting of the control constants.
[0006]
According to the present invention, when the installation of the air conditioner composed of the indoor unit and the outdoor unit is finished and the main power supply is turned on, the automatic diagnosis means for diagnosing whether the connection state or the operation state is good, and the installed ambient conditions Automatic control constant setting means that automatically sets control constants for air conditioning according to the conditions, automatically connected piping, refrigerant gas pressure, sensor disconnection, compressor operation, electronic expansion valve operation It is possible to diagnose the quality of the connection state or operation state of the operation of the four-way valve and the operation of the blower of the indoor unit or the outdoor unit, and the automatic setting of the control constant of the electronic expansion valve and / or the room temperature control constant The control constant can be automatically set so that the air conditioner performs an optimal operation in accordance with the installation conditions . Therefore, the air conditioner can be brought into an optimum state according to the installation conditions. The “installation of the air conditioner” in the present invention is not limited to the case where the air conditioner is first installed, but the air conditioner that has already been installed is relocated, and the air conditioner is re-installed at the relocation destination. Including installation.
[0007]
According to a second aspect of the present invention, in the air conditioning apparatus of the first aspect, an output device that outputs a diagnosis result diagnosed by the automatic diagnosis means and / or a setting result set in the control constant automatic setting means. It is characterized by comprising.
[0008]
According to the present invention, the automatic diagnosis result and the automatic setting result of the control constant can be displayed on the display unit so that the result can be easily confirmed visually and the operation may be started in an incomplete state. Disappears.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing only the automatic diagnosis means and the control constant automatic setting means in the air conditioner according to the embodiment of the present invention. In this figure, reference numeral 10 denotes an air conditioner, reference numeral 100 denotes an automatic diagnosis means, reference numeral 200 denotes a control constant automatic setting means, and all other configurations of the main body of the indoor unit and the outdoor unit are omitted. .
[0010]
The automatic diagnosis means 100 includes an operation valve “open” confirmation means 1, a gas pressure confirmation means 2, a sensor connection confirmation means 3, a compressor operation confirmation means 4, an electronic expansion valve operation confirmation means 5, a four-way valve operation confirmation means 6, and It consists of blower operation confirmation means 7. The control constant automatic setting means 200 includes an electronic expansion valve control constant automatic setting means 8 and a room temperature control constant automatic setting means 9.
[0011]
Of the automatic diagnosis means 100, the operation valve “open” confirmation means 1 is a means for confirming that the operation valve of the outdoor unit in the refrigerant flow path is open, and this operation valve is “open”. Otherwise, the air conditioner will not operate normally, and an excessive pressure resistance will be applied to the compressor, which will cause damage to the compressor in the worst case. The gas pressure confirmation means 2 is a means for confirming that the refrigerant pipe connecting the indoor unit and the outdoor unit is properly connected and that the normal gas pressure of the refrigerant is maintained. If the refrigerant has a normal gas pressure, it can be considered that there is no refrigerant leakage. The sensor connection confirmation means 3 is a sensor for detecting indoor and outdoor temperatures and indoor humidity, and a means for confirming that other sensors are normally connected (conducted) to the control device. Control of cooling or heating is performed based on the detection value by the sensor. The compressor operation confirmation means 4 is means for confirming the operation of the compressor that compresses the refrigerant. The electronic expansion valve operation confirmation means 5 is means for confirming the operation of the electronic expansion valve that vaporizes the compressed refrigerant. The four-way valve operation confirmation means 6 is a means for confirming the operation of the four-way valve that switches between cooling and heating operations. The blower operation confirmation means 7 is a means for confirming the operation of the blower provided in the indoor unit or the outdoor unit.
[0012]
Of the automatic control constant setting means 200, the electronic expansion valve control constant automatic setting means 8 is a means for automatically setting the control constant of the electronic expansion valve that varies depending on the length of the pipe connecting the indoor unit and the outdoor unit. The time constant is obtained from the above and the control constant is determined. The room temperature control constant automatic setting means 9 automatically sets different room temperature control constants depending on whether or not a part of the blown air is directly returned to the indoor unit because furniture or the like is placed near the air outlet of the indoor unit. Means.
[0013]
Next, the operation flow of the automatic diagnosis unit 100 and the control constant automatic setting unit 200 described above will be described with reference to FIG. In step S1, it is determined whether or not the first power source is turned on after the air conditioner is installed. If the result is Yes, the routine proceeds to a routine for automatic diagnosis and automatic constant setting. In step S2, in order to start from the operation valve “open” confirmation means 1 which is the first diagnosis item, 1 is substituted into the variable i. In step S3, it is displayed that the i-th item (first here, the same applies hereinafter) is being processed. In step S4, the i-th item is processed. In step S5, it is determined whether or not the processing result of the i-th item is normal. If Yes, it is displayed in step S6 that the i-th item is normal. In step S7, it is determined whether or not the i-th item is the last item, and since it is No, the process proceeds to step S8.
[0014]
In step S8, i is incremented by 1 to 2, and in steps S3 to S8, processing relating to the gas pressure confirmation means 2 as the second diagnostic item is performed. Incrementing means that the numerical value is increased by a large amount in the case of repetitive processing by programming. Similarly, when the variable i is finished up to the blower operation confirming means 7 with 7, the variable i is incremented by 1 to 8 and the control constant is automatically set. The control constants are set by the electronic expansion valve control constant automatic setting means 8 and the room temperature control constant automatic setting means 9 by the routine from step S3 to step S7. A routine means a series of instructions having a certain function and constituting a part of a computer program. When the processing of the room temperature control constant automatic setting means 9 with the variable i being 9 is completed, it becomes the last processing item in step S7, so the determination in this step is Yes, and the process proceeds to step S8 to perform normal operation.
[0015]
In Step S1, when the result of determination as to whether or not the first original power supply is turned on after installing the air conditioner is No, the process proceeds to Step S9 and normal operation is performed. This is always the case during normal operation. If the processing result of each processing item is not normal, the determination in Step S5 is No, the process proceeds to Step S10, the i-th abnormality is displayed, and the operation is stopped in Step S10. At this time, after checking and repairing the contents of the installation work, the first power-on processing after the installation is performed again. For this reason, there is no possibility that the installation will be completed with incomplete installation work.
[0016]
The operation of the embodiment of the present invention has been described in detail with reference to the drawings. However, the present invention is not limited to this embodiment, and design changes and the like within a scope not departing from the gist of the present invention are possible. Even if it exists, it is included in this invention. For example, the items of automatic diagnosis and automatic control constant setting are not limited to the items according to the above-described embodiment, and other items may be added or unnecessary items may be excluded. In addition, the automatic diagnosis means or the automatic control constant setting means is not built in the indoor unit or outdoor unit of the air conditioner, but is connected to the air conditioner as necessary as an independent diagnostic device having a portable configuration. A configuration for performing automatic diagnosis and automatic control constant setting is also included in the present invention.
[0017]
The invention in the present embodiment is not limited to the case where an air conditioner is newly installed, but can also be applied as follows when an air conditioner that has already been installed is newly installed at a transfer destination. . When the wiring or piping at a specific location is removed in order to relocate an existing air conditioner, this fact of removal is detected. Based on this, the information that was No in step S1 is cleared and set to Yes. Then, when the original power supply is turned on when the air conditioner is newly installed at the relocation destination, it is recognized as Yes in step S1.
[0018]
【The invention's effect】
As described above, according to the present invention, the following effects can be obtained. According to the first aspect of the present invention, when the installation of the air conditioner composed of the indoor unit and the outdoor unit is finished and the main power supply is turned on, the automatic diagnosis means for diagnosing the quality of the connected state or the operating state is installed. Automatic control constant setting means that automatically sets control constants for air conditioning according to the ambient conditions automatically connects pipes, refrigerant gas pressure, sensor disconnection, compressor operation, electronic expansion The operation of the valve, the operation of the four-way valve, the operation of the blower of the indoor unit or the outdoor unit, etc. can be diagnosed, and the control condition of the electronic expansion valve can be automatically set and / or The room temperature control constant can be automatically set, and the control constant can be automatically set so that the air conditioner performs an optimal operation in accordance with the installation conditions . Therefore, the air conditioner can be brought into an optimum state according to the installation conditions.
[0019]
According to the invention of
[Brief description of the drawings]
FIG. 1 is a diagram showing automatic diagnosis means and control constant automatic setting means in an air conditioner according to an embodiment of the present invention.
FIG. 2 is an operation flowchart of automatic diagnosis means and control constant automatic setting means.
[Explanation of symbols]
DESCRIPTION OF
Claims (2)
前記自動診断手段は、冷媒の流路のうち前記室外機の操作弁が開かれていることを確認する操作弁確認手段と、前記冷媒のガス圧が保たれていることを確認するガス圧確認手段と、温度または湿度を検出するセンサが導通していることを確認するセンサ確認手段と、前記冷媒を圧縮する圧縮機の動作を確認する圧縮機確認手段と、前記冷媒を気化させる電子膨張弁の動作を確認する膨張弁確認手段と、冷房動作と暖房動作とを切り替える４方弁の動作を確認する４方弁確認手段と、前記室内機または前記室外機の送風機の動作を確認する送風機確認手段とを備え、
前記制御定数自動設定手段は、配管の長さによって異なる前記電子膨張弁の制御定数を自動設定する膨張弁制御定数設定手段および／または前記室内機の吹き出し口付近の空気の流路によって異なる室温制御定数を自動設定する室温制御定数設定手段を備え、
前記空気調和装置の据え付けを終了して元電源を投入したとき、前記自動診断手段は、前記操作弁確認手段、前記ガス圧確認手段、前記センサ確認手段、前記圧縮機確認手段による自動診断を順次行い、続いて前記膨張弁確認手段、前記４方弁確認手段、前記送風機確認手段による自動診断を順次行い、前記自動診断手段による診断終了後に、前記制御定数自動設定手段が、順次前記制御定数の自動設定を行うことを特徴とする空気調和装置。In an air conditioner composed of an indoor unit and an outdoor unit, automatic diagnosis means for diagnosing the quality of the connection state or operation state of the air conditioner, and control of air condition according to the ambient conditions where the air conditioner is installed A control constant automatic setting means for automatically setting the constant,
The automatic diagnosis means includes an operation valve confirmation means for confirming that an operation valve of the outdoor unit is opened in a refrigerant flow path, and a gas pressure confirmation for confirming that the gas pressure of the refrigerant is maintained. Means for confirming that the sensor for detecting temperature or humidity is conducting, compressor confirming means for confirming the operation of the compressor for compressing the refrigerant, and electronic expansion valve for vaporizing the refrigerant Expansion valve confirmation means for confirming the operation of the engine, four-way valve confirmation means for confirming the operation of the four-way valve for switching between the cooling operation and the heating operation, and the blower confirmation for confirming the operation of the blower of the indoor unit or the outdoor unit. Means and
The control constant automatic setting means is an expansion valve control constant setting means for automatically setting a control constant of the electronic expansion valve which varies depending on a length of a pipe and / or a room temperature control which varies depending on an air flow path near the outlet of the indoor unit. A room temperature control constant setting means for automatically setting the constant is provided.
When the installation of the air conditioner is finished and the main power supply is turned on, the automatic diagnosis means sequentially performs automatic diagnosis by the operation valve confirmation means, the gas pressure confirmation means, the sensor confirmation means, and the compressor confirmation means. Subsequently, automatic diagnosis is sequentially performed by the expansion valve confirmation unit, the four-way valve confirmation unit, and the blower confirmation unit. After the diagnosis by the automatic diagnosis unit is completed, the control constant automatic setting unit sequentially sets the control constant. An air conditioner that performs automatic setting.
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| AU2012378582B2 (en) | 2012-04-26 | 2015-07-30 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| JP7204892B2 (en) * | 2019-04-05 | 2023-01-16 | 三菱電機株式会社 | heat pump system |
| CN112212464A (en) * | 2020-10-27 | 2021-01-12 | 珠海格力电器股份有限公司 | Control system, method and device of data center air conditioning unit and storage medium |
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| JPH02233951A (en) * | 1989-03-08 | 1990-09-17 | Hitachi Ltd | Control circuit for air conditioner |
| JPH05296522A (en) * | 1992-04-20 | 1993-11-09 | Matsushita Electric Ind Co Ltd | Self trouble-diagnosing display device for air conditioner |
| JP3458984B2 (en) * | 1995-11-15 | 2003-10-20 | 三菱電機株式会社 | Control device for air conditioner |
| JPH11173625A (en) * | 1997-12-17 | 1999-07-02 | Mitsubishi Electric Corp | Air conditioner |
| JPH11294871A (en) * | 1998-04-14 | 1999-10-29 | Toshiba Corp | Air conditioner |
| JP2001091031A (en) * | 1999-09-20 | 2001-04-06 | Mitsubishi Electric Corp | Control device for air conditioner |
| JP4259696B2 (en) * | 1999-09-30 | 2009-04-30 | 三洋電機株式会社 | Air conditioner test run judgment method |
| JP3754250B2 (en) * | 1999-11-10 | 2006-03-08 | 三洋電機株式会社 | Air conditioner |
| JP2001227790A (en) * | 2000-02-18 | 2001-08-24 | Fujitsu General Ltd | Device for diagnosing fault of sensor of air conditioner |
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