JP2001289480A - Multi-room air conditioner - Google Patents
Multi-room air conditionerInfo
- Publication number
- JP2001289480A JP2001289480A JP2000100231A JP2000100231A JP2001289480A JP 2001289480 A JP2001289480 A JP 2001289480A JP 2000100231 A JP2000100231 A JP 2000100231A JP 2000100231 A JP2000100231 A JP 2000100231A JP 2001289480 A JP2001289480 A JP 2001289480A
- Authority
- JP
- Japan
- Prior art keywords
- indoor
- heat exchanger
- temperature
- unit
- indoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本願発明は、１台の室外ユニ
ット及び複数の室内ユニットからなる多室型空気調和機
に係り、特に据え付き工事時における各室内ユニットと
室外ユニットとの間の配管と配線の整合性、いわゆる誤
配線チェック方式の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-room air conditioner comprising one outdoor unit and a plurality of indoor units, and more particularly to a pipe between each indoor unit and an outdoor unit during installation work. The present invention relates to an improvement of a wiring consistency, that is, a so-called incorrect wiring check method.
【０００２】[0002]
【従来の技術】近年、一般家庭における空気調和機の普
及とともに、同一の家庭に複数の空気調和機が設置され
るようになってきた。特に、新設住宅及び既設住宅での
改築時には、一部屋毎の快適制御等の性能の向上、長冷
媒配管での信頼性の向上や、室外ユニットが１台ですむ
設置スペースの有効利用とそれに伴うエクステリアの美
観性、またさらには総合的な経済性等により、複数の室
内ユニットを１台の室外ユニットに接続し、そして制御
する多室空気調和機が選ばれることが多くなってきてい
る。2. Description of the Related Art In recent years, with the spread of air conditioners in general homes, a plurality of air conditioners have been installed in the same home. In particular, when renovating new or existing homes, improvements in performance such as comfort control in each room, improved reliability with long refrigerant pipes, and effective use of installation space that requires only one outdoor unit Due to the aesthetics of the exterior and the overall economy, a multi-room air conditioner that connects and controls a plurality of indoor units to one outdoor unit has been increasingly selected.
【０００３】従来、この種の複数の室内ユニットを有す
る多室空気調和機の据え付け工事時には、作業者が気を
つけていても、室内ユニットからの配管と配線を室外ユ
ニットの接続すべきところに接続せずに、誤って他の室
内ユニット用の接続部に接続してしまう場合がある。そ
して、このような誤配線のままで室内ユニットを運転す
ると、室内ファンが運転していない室内ユニットに冷媒
が流れ、その室内ユニットの熱交換器が凍結を生じ、最
悪の場合には室内ユニットからの水漏れにいたってしま
う不具合や室内ユニットの配管接続されていない室内ユ
ニット用の接続用端子台に配管接続されている室内ユニ
ットの配線を接続することにより、圧縮機は運転するが
冷媒は流れずポンプダウン運転となり、機器の大きな損
傷をいたらしめる不都合があった。Conventionally, during installation work of a multi-room air conditioner having a plurality of indoor units of this type, even if a worker is careful, pipes and wiring from the indoor units should be connected to the outdoor unit where they should be connected. Without connecting, there is a case where it is accidentally connected to the connection part for another indoor unit. When the indoor unit is operated with such incorrect wiring, the refrigerant flows to the indoor unit in which the indoor fan is not operating, and the heat exchanger of the indoor unit freezes. By connecting the wiring of the indoor unit that is connected by piping to the connection terminal block for the indoor unit that is not connected to the piping of the indoor unit, the compressor operates, but the refrigerant flows. Pump down operation, and there was an inconvenience of causing serious damage to the equipment.
【０００４】このため設置終了時に誤配線チェックを必
ず行なわなければならない。誤配線チェックの方法とし
て１台１台人手に頼って行う方法もあるが、その工数が
多大な為に図４のフローチャートに示す解決策が提案さ
れている。この内容は各室内ユニットの室内熱交換器に
配管温度センサ、具体的には室内熱交換器の内部に流れ
る冷媒の温度を検知する配管温度センサを設けて冷房運
転して、室内ユニットの室内熱交換器に冷媒が流れるこ
とにより前記配管温度センサの検知温度が変化すること
を利用して、又、より確実性を増すために各室内ユニッ
トを複数の温度センサ、具体的には室内の空気温度を検
知する吸入温度センサと室内熱交換器の内部を流れる冷
媒の温度を検知する配管温度センサを設けて、冷媒が流
れている室内ユニットの吸入温度と配管温度との温度差
が停止している室内ユニットのその温度差により大きい
ことを利用して、運転信号を受けている室内ユニットが
本当に運転中か或いは、室内ユニット間の接続電線の接
続誤りで停止中であるかの判断手段を設けている。又、
室内ユニットを冷媒分岐ユニットを介して室外ユニット
に接続している場合は冷媒分岐ユニットに配管温度セン
サを設けた場合と同じく考えで、運転信号を受けている
室内ユニットが本当に運転中かまたは、接続誤りで停止
中かの判断手段を設けている。For this reason, an erroneous wiring check must be performed at the end of installation. There is also a method of checking for incorrect wiring by relying on one person at a time, but since the number of steps is large, a solution shown in the flowchart of FIG. 4 has been proposed. The content of the indoor heat exchanger of each indoor unit is provided with a pipe temperature sensor, specifically, a pipe temperature sensor for detecting the temperature of the refrigerant flowing inside the indoor heat exchanger, and the cooling operation is performed to perform the indoor heat of the indoor unit. Using the fact that the detected temperature of the pipe temperature sensor changes due to the flow of the refrigerant in the exchanger, and in order to further increase the reliability, each indoor unit is provided with a plurality of temperature sensors, specifically, the indoor air temperature. And a piping temperature sensor for detecting the temperature of the refrigerant flowing inside the indoor heat exchanger, so that the temperature difference between the suction temperature of the indoor unit in which the refrigerant is flowing and the piping temperature is stopped. Utilizing the fact that the temperature difference of the indoor unit is larger than that of the indoor unit, it is possible to determine whether the indoor unit receiving the operation signal is actually operating or has been stopped due to an incorrect connection wire between the indoor units. It is provided with the means. or,
When the indoor unit is connected to the outdoor unit via the refrigerant branch unit, the indoor unit receiving the operation signal is actually operating or connected, as in the case where the piping temperature sensor is provided in the refrigerant branch unit. A means for determining whether the vehicle is stopped due to an error is provided.
【０００５】そして、いずれの場合でも、前記フローチ
ャートに示すようにチェックモードを設定することによ
り室外ユニットを運転し、各室内ユニットを１台ごと順
番に一定時間（５分〜１０分）運転することを繰り返し
て、誤配線チェックを行っていた。[0005] In any case, the outdoor unit is operated by setting the check mode as shown in the flowchart, and each indoor unit is operated one by one for a certain period of time (5 minutes to 10 minutes). Was repeated to check for incorrect wiring.
【０００６】又、施工者が配線をどのように入れ替えて
も、全ての複数台の室内機の接続関係が判断できる技術
が開示されいる。該技術は、空気調和機の室外機１台と
複数台の室内機とを接続し、室外機に電源供給を行う
と、室外機制御部によって圧縮機が起動し、冷凍回路内
の冷媒がある１台の室内機の熱交換器に流した後、熱交
換器に接続されている温度センサが冷媒の温度を検知し
室内制御部に伝達される。前記室内制御部は、温度セン
サの検知温度を温度情報として、信号線を通じて室外機
のある信号部に送信され、前記信号部より室外機制御部
に伝達される。前記室外機制御部は、各信号部からの信
号すなわち温度情報と比較するので、温度情報が変化し
た信号部が認識でき、よって、ある1台の室内機の配管
部と信号部との対応が分かる。以上の動作を繰り返すこ
とにより、各室内機の配管部と信号部との対応がすべて
判別でき、全ての複数台の室内機が正しく接続されたこ
とを判断できるというものである。[0006] Also, a technique is disclosed in which the connection relation of all the plurality of indoor units can be determined regardless of how the wiring is replaced by the installer. In this technology, when one outdoor unit of an air conditioner is connected to a plurality of indoor units and power is supplied to the outdoor unit, the compressor is started by the outdoor unit control unit and refrigerant in the refrigeration circuit is present. After flowing through the heat exchanger of one indoor unit, the temperature sensor connected to the heat exchanger detects the temperature of the refrigerant and is transmitted to the indoor control unit. The indoor control unit transmits the detected temperature of the temperature sensor as temperature information to a signal unit having an outdoor unit through a signal line, and transmits the signal to the outdoor unit control unit from the signal unit. Since the outdoor unit control unit compares the signal from each signal unit, that is, the temperature information, it can recognize the signal unit in which the temperature information has changed, and therefore, the correspondence between the piping unit and the signal unit of a certain indoor unit. I understand. By repeating the above operation, the correspondence between the piping unit and the signal unit of each indoor unit can be all determined, and it can be determined that all the plurality of indoor units are correctly connected.
【０００７】このように、従来においては、圧縮機を運
転させてから各室内機に対応する制御弁を１つずつ順番
に開いていき、室内熱交換器温度情報に変化の生じる室
内をその制御弁に対応する室内だと判定するのみであっ
た。As described above, in the related art, after the compressor is operated, the control valves corresponding to the respective indoor units are sequentially opened one by one to control the inside of the room where the temperature information of the indoor heat exchanger changes. Only the room corresponding to the valve was determined.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、従来の
構成においても確かに室内ユニット間の誤配線チェック
は可能であるが、接続される室内ユニット間が多数であ
る場合には、その誤配線チェックに要する時間が多大な
ものとなり、制御弁を１つずつ動作していた室内機の熱
交換器温度の変化方向が制御弁の変化に敏感に反応でき
ず、次の室内の探索時に、前回決定した室内と同じ室内
が選択されてしまうという問題が生じて誤配線チェック
に多大な時間を要していた。However, in the conventional configuration, it is possible to check for erroneous wiring between indoor units. However, if there are a large number of connected indoor units, the check for erroneous wiring is performed. The required time becomes enormous, and the direction of change of the heat exchanger temperature of the indoor unit, which operated the control valve one by one, cannot react sensitively to the change of the control valve. There was a problem that the same room as the room was selected, and it took a lot of time to check for incorrect wiring.
【０００９】従って、本願発明において、上記問題を解
決した誤配線チェック手段を提供することを目的とす
る。Accordingly, it is an object of the present invention to provide an erroneous wiring checking means which solves the above problem.
【００１０】[0010]
【課題を解決するための手段】上記課題を解決するため
に、本願発明は、熱交換器を有する複数の室内機と、室
外機と、制御弁と、該熱交換器内に流れる冷媒温度を検
知する温度センサと、前記室外機と該室内機とが配管パ
イプ及び配線とで接続されている多室型空気調和機にお
いて、前記室外機に誤配線チェックスイッチが設けられ
ており、該誤配線チェックスイッチを押すと前記熱交換
器内に流れる冷媒温度の変化に基づいて誤配線であるか
どうかを判定する誤配線チェック手段が用いられている
ことを特徴とする多室型空気調和機である。In order to solve the above-mentioned problems, the present invention relates to a plurality of indoor units having a heat exchanger, an outdoor unit, a control valve, and the temperature of a refrigerant flowing in the heat exchanger. In a multi-room air conditioner in which a temperature sensor to be detected and the outdoor unit and the indoor unit are connected by a piping pipe and wiring, the outdoor unit is provided with an incorrect wiring check switch. A multi-room air conditioner characterized by using a miswiring check means for determining whether or not miswiring is performed based on a change in the temperature of the refrigerant flowing in the heat exchanger when a check switch is pressed. .
【００１１】又、前記誤配線チェック手段は、前記圧縮
機を運転させてから各室内機に対応する前記制御弁を一
つずつ順番に開いていき、前記熱交換器の温度情報に変
化が生じる室内を前記制御弁に対応する室内だと判定
し、一度判定した室内の熱交換器の温度変化は、次の室
内探索の対象から除外することを特徴とする多室型空気
調和機である。The erroneous wiring checking means operates the compressor and then opens the control valves corresponding to the respective indoor units one by one, so that the temperature information of the heat exchanger changes. The multi-room air conditioner is characterized in that the room is determined to be the room corresponding to the control valve, and the temperature change of the heat exchanger in the room once determined is excluded from the next room search.
【００１２】[0012]
【発明の実施の形態】以下に本願発明の実施例を図１乃
至図３を参照しながら説明する。尚、実施例は室内機Ｂ
１，Ｂ２，Ｂ３，Ｂ４の４台として説明することとす
る。図３に示すように多室空気調和機用の室外機１０１
には、室内機Ｂ１に対して制御弁Ａ１が、室内機Ｂ２に
対して制御弁Ａ２が、室内機Ｂ３に対して制御弁Ａ３
が、室内機Ｂ４に対して制御弁Ａ４が配設されており、
各制御弁Ａ１，Ａ２，Ａ３，Ａ４を通じて室外機１０１
と各室内機Ｂ１，Ｂ２，Ｂ３，Ｂ４とが接続されること
となる。該室内機Ｂ１，Ｂ２，Ｂ３，Ｂ４には各々熱交
換器２０１，２０２，２０３，２０４が配設されてお
り、各熱交換器２０１，２０２，２０３，２０４には温
度センサが設置されている。又、室外機には誤配線チェ
ックスイッチ２００が配設されており、該誤配線チェッ
クスイッチ２００を押すと全室内機Ｂ１，Ｂ２，Ｂ３，
Ｂ４へ誤配線チェック動作の信号がシリアル信号にて送
信されて全室内機Ｂ１，Ｂ２，Ｂ３，Ｂ４に配設された
ファンが回転される。そして、各熱交換器２０１，２０
２，２０３，２０４の温度が配設されている温度センサ
により測定され、室外機１０１内に配設されているマイ
コン２０５に温度情報として送信され、該マイコン２０
５内のメモリに記憶される。ここにおいて、熱交換器２
０１の温度をＴ１０と、熱交換器２０２の温度をＴ２０
と、熱交換器２０３の温度をＴ３０と、熱交換器２０３
の温度をＴ３０として記憶される。そして、圧縮機をＯ
Ｎ状態にしてから制御弁Ａ１のみが開かれる。この状態
において、各室内機Ｂ１，Ｂ２，Ｂ３，Ｂ４の熱交換器
２０１，２０２，２０３，２０４の温度が測定される。
該各々の測定温度を熱交換器２０１に対してＴ１、熱交
換器２０２に対してＴ２、熱交換器２０３に対してＴ
３、熱交換器２０４に対してＴ４として、室外機１０１
内のマイコン２０５に送信され、各熱交換器の温度変
化、即ち熱交換器２０１に対してはＴ１０−Ｔ１、熱交
換器２０２に対してはＴ２０−Ｔ２、熱交換器２０３に
対してはＴ３０−Ｔ３、熱交換器２０４に対してはＴ４
０−Ｔ４が常時監視されている。そして、これらの温度
変化が規定温度Ｔj以上となる室内機の探索が行われ
る。即ち、この場合においては、Ｔ１０−Ｔ１の温度差
が規定温度Ｔｊ以上となるので、制御弁Ａ１は室内機Ｂ
１に対応していると判定され室内機Ｂ１は決定済みであ
るということがマイコン２０５に記憶される。そして、
決定されていない室内機、即ち室内機Ｂ２，Ｂ３，Ｂ４
の探索がされる。次の、室内機の探索に移る前に再度全
室内機Ｂ１，Ｂ２，Ｂ３，Ｂ４の熱交換器２０１，２０
２，２０３，２０４の温度Ｔ１０，Ｔ２０，Ｔ３０，Ｔ
４０が更新されてマイコン２０５内のメモリに記憶され
る。その後、制御弁Ａ１が閉じられ、制御弁Ａ２が開け
られる。この状態において、各室内機Ｂ１，Ｂ２，Ｂ
３，Ｂ４の熱交換器２０１，２０２，２０３，２０４の
温度が測定され、熱交換器２０１に対してＴ１、熱交換
器２０２に対してＴ２、熱交換器２０３に対してＴ３、
熱交換器２０４に対してＴ４として、室外機１０１内の
マイコン２０５に送信され、各熱交換器の温度変化、即
ち熱交換器２０１に対してはＴ１０−Ｔ１、熱交換器２
０２に対してはＴ２０−Ｔ２、熱交換器２０３に対して
はＴ３０−Ｔ３、熱交換器２０４に対してはＴ４０−Ｔ
４が常時監視されている。そして、これらの温度変化が
規定温度Ｔj以上となる室内機の探索が行われる。この
時、前回決定された室内機、この場合においては室内機
Ｂ１の温度変化は数時間のアンダーシュート現象により
数時間の間は規定温度Ｔｊ以上が保持されることとなる
ので、次の室内機の決定時には、決定済みである室内
機、この場合においては室内機Ｂ１を除く室内機Ｂ２，
Ｂ３，Ｂ４の中から決定することとなる。この方法を採
ることにより同じ室内機の決定が重複されるという不具
合が防止されることとなる。従って、次に室内機Ｂ２が
決定されることとなる。同様にして、４室全ての室内機
の探索が行われることとなる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the embodiment, the indoor unit B is used.
The description will be made assuming that there are four units 1, B2, B3, and B4. As shown in FIG. 3, an outdoor unit 101 for a multi-room air conditioner
Has a control valve A1 for the indoor unit B1, a control valve A2 for the indoor unit B2, and a control valve A3 for the indoor unit B3.
However, a control valve A4 is provided for the indoor unit B4,
The outdoor unit 101 through each control valve A1, A2, A3, A4.
And each of the indoor units B1, B2, B3, and B4 are connected. The indoor units B1, B2, B3, and B4 are provided with heat exchangers 201, 202, 203, and 204, respectively, and the heat exchangers 201, 202, 203, and 204 are provided with temperature sensors. . The outdoor unit is provided with a miswiring check switch 200. When the miswiring check switch 200 is pressed, all the indoor units B1, B2, B3,
A signal of an erroneous wiring check operation is transmitted to B4 as a serial signal, and the fans arranged in all the indoor units B1, B2, B3, and B4 are rotated. And each heat exchanger 201, 20
2, 203 and 204 are measured by a temperature sensor disposed therein, and transmitted as temperature information to a microcomputer 205 disposed in the outdoor unit 101.
5 is stored in the memory. Here, the heat exchanger 2
01 is T10 and the temperature of the heat exchanger 202 is T20.
, The temperature of the heat exchanger 203, T30,
Is stored as T30. And set the compressor to O
After the N state, only the control valve A1 is opened. In this state, the temperatures of the heat exchangers 201, 202, 203, 204 of the indoor units B1, B2, B3, B4 are measured.
The respective measured temperatures are T1 for the heat exchanger 201, T2 for the heat exchanger 202, and T2 for the heat exchanger 203.
3. The outdoor unit 101 is set as T4 for the heat exchanger 204.
And the temperature change of each heat exchanger, that is, T10-T1 for the heat exchanger 201, T20-T2 for the heat exchanger 202, and T30 for the heat exchanger 203. -T3, T4 for heat exchanger 204
0-T4 is constantly monitored. Then, a search is made for an indoor unit in which these temperature changes are equal to or higher than the specified temperature Tj . That is, in this case, since the temperature difference between T10 and T1 is equal to or higher than the specified temperature Tj, the control valve A1
1 and the fact that the indoor unit B1 has been determined is stored in the microcomputer 205. And
Indoor units not determined, that is, indoor units B2, B3, B4
Is searched. Before proceeding to the search for the next indoor unit, the heat exchangers 201 and 20 of all the indoor units B1, B2, B3 and B4 are again used.
Temperatures T10, T20, T30, T of 2,203,204
40 is updated and stored in the memory in the microcomputer 205. Thereafter, the control valve A1 is closed and the control valve A2 is opened. In this state, each indoor unit B1, B2, B
The temperatures of the heat exchangers 201, 202, 203, and 204 of the heat exchangers 3 and B4 are measured, and T1 for the heat exchanger 201, T2 for the heat exchanger 202, T3 for the heat exchanger 203,
The temperature is transmitted to the microcomputer 205 in the outdoor unit 101 as T4 for the heat exchanger 204, and the temperature change of each heat exchanger, that is, T10-T1 for the heat exchanger 201 and the heat exchanger 2
02 for T20-T2, heat exchanger 203 for T30-T3, and heat exchanger 204 for T40-T.
4 are constantly monitored. Then, a search is made for an indoor unit in which these temperature changes are equal to or higher than the specified temperature Tj . At this time, since the temperature change of the indoor unit determined last time, in this case, the indoor unit B1 is maintained at the specified temperature Tj or more for several hours due to an undershoot phenomenon of several hours, the next indoor unit Is determined at the time of the determination of the indoor units, in this case, the indoor units B2 except the indoor unit B1
The decision is made from B3 and B4. By adopting this method, a problem that the same indoor unit is determined repeatedly is prevented. Therefore, the indoor unit B2 is determined next. Similarly, the search for all four indoor units is performed.
【００１３】図２に熱交換器温度が変化する室内機の探
索のフローチャートが示されている。まず、室内機Ｂ１
が決定済みであるかどうかの判断がされ、室内機Ｂ１が
決定されていなければ、上述したように熱交換器２０１
の温度変化が規定温度Ｔｊ以上であるかどうか判定され
る。そして、規定温度Ｔｊ以上であるならば室内機Ｂ１
であることが決定され室内機の探索は終了され、規定温
度Ｔｊより小さければ室内機Ｂ２かどうかの判定へと移
る。又、既に室内機Ｂ１が決定済みであるならば、室内
機Ｂ２への判定へと移る。同様に、室内機Ｂ２の判定段
階において、室内機Ｂ２が決定済みであるかどうかの判
断がされ、室内機Ｂ２が決定されていなければ、上述し
たように熱交換器２０１の温度変化が規定温度Ｔｊ以上
であるかどうか判定される。そして、規定温度Ｔｊ以上
であるならば室内機Ｂ２であることが決定され室内機の
探索は終了され、規定温度Ｔｊより小さければ室内機Ｂ
３かどうかの判定へと移る。又、既に室内機Ｂ２が決定
済みであるならば、室内機Ｂ３への判定へと移る。同様
に、室内機Ｂ３の判定段階において、室内機Ｂ３が決定
済みであるかどうかの判断がされ、室内機Ｂ３が決定さ
れていなければ、上述したように熱交換器２０１の温度
変化が規定温度Ｔｊ以上であるかどうか判定される。そ
して、規定温度Ｔｊ以上であるならば室内機Ｂ３である
ことが決定され室内機の探索が終了され、規定温度Ｔｊ
より小さければ室内機Ｂ４かどうかの判定へと移る。
又、既に室内機Ｂ３が決定済みであるならば、室内機Ｂ
４への判定へと移る。同様に、室内機Ｂ４の判定段階に
おいて、室内機Ｂ４が決定済みであるかどうかの判断が
され、室内機Ｂ４が決定されていなければ、上述したよ
うに熱交換器２０１の温度変化が規定温度Ｔｊ以上であ
るかどうか判定される。そして、規定温度Ｔｊ以上であ
るならば室内機Ｂ４であることが決定され室内機の探索
が終了され、規定温度Ｔｊより小さければ室内機Ｂ１か
どうかの判定へと移る。又、既に室内機Ｂ４が決定済み
であるならば、室内機Ｂ１への判定へと移る。FIG. 2 is a flow chart for searching for an indoor unit in which the temperature of the heat exchanger changes. First, indoor unit B1
Is determined, and if the indoor unit B1 is not determined, the heat exchanger 201 is determined as described above.
It is determined whether or not the temperature change is equal to or higher than the specified temperature Tj. If the temperature is equal to or higher than the specified temperature Tj, the indoor unit B1
Is determined, and the search for the indoor unit is terminated. If the temperature is lower than the specified temperature Tj, the process proceeds to a determination as to whether or not the indoor unit is B2. If the indoor unit B1 has already been determined, the process proceeds to the determination for the indoor unit B2. Similarly, in the determination step of the indoor unit B2, it is determined whether or not the indoor unit B2 has been determined. If the indoor unit B2 has not been determined, the temperature change of the heat exchanger 201 becomes the specified temperature as described above. It is determined whether it is equal to or greater than Tj. If the temperature is equal to or higher than the specified temperature Tj, it is determined that the indoor unit is the indoor unit B2, and the search for the indoor unit is terminated.
Move on to the determination of 3 or not. If the indoor unit B2 has already been determined, the process proceeds to the determination for the indoor unit B3. Similarly, in the determination stage of the indoor unit B3, it is determined whether or not the indoor unit B3 has been determined. If the indoor unit B3 has not been determined, the temperature change of the heat exchanger 201 becomes the specified temperature as described above. It is determined whether it is equal to or greater than Tj. If the temperature is equal to or higher than the specified temperature Tj, it is determined that the indoor unit is the indoor unit B3, and the search for the indoor unit is terminated.
If it is smaller, the process proceeds to the determination as to whether or not the indoor unit is B4.
If the indoor unit B3 has already been determined, the indoor unit B
Move to the judgment of 4. Similarly, in the determination stage of the indoor unit B4, it is determined whether or not the indoor unit B4 has been determined. If the indoor unit B4 has not been determined, the temperature change of the heat exchanger 201 becomes the specified temperature as described above. It is determined whether it is equal to or greater than Tj. If the temperature is equal to or higher than the specified temperature Tj, it is determined that the indoor unit is the indoor unit B4, and the search for the indoor unit is ended. If the temperature is lower than the specified temperature Tj, the process proceeds to the determination as to whether or not the indoor unit is B1. If the indoor unit B4 has already been determined, the process proceeds to the determination for the indoor unit B1.
【００１４】尚、実施例では室内機を４台としたが、４
台と限定されるわけでもなく何台の設定でも構わない。
又、実施例においては冷房運転としたが、暖房運転を用
いてもよく、その作用効果に差異は生じない。In this embodiment, four indoor units are used.
It is not limited to the number of units and any number of settings may be used.
Although the cooling operation is used in the embodiment, a heating operation may be used, and there is no difference in operation and effect.
【００１５】又、室外機に温度情報等の処理を行うマイ
コンが装備されているが、室内機に設けてもよく、更
に、室内機各々に室内制御部を設けて熱交換器に流れる
冷媒の温度変化を解析し、その解析結果を室外機に設け
られた室外機制御部に送信し、室外制御部において誤配
線であるかどうかの判定をするようにしてもよい。Although the outdoor unit is provided with a microcomputer for processing temperature information and the like, the microcomputer may be provided in the indoor unit. Further, each indoor unit is provided with an indoor control unit to control the refrigerant flowing through the heat exchanger. The temperature change may be analyzed, the analysis result may be transmitted to an outdoor unit control unit provided in the outdoor unit, and the outdoor control unit may determine whether the wiring is incorrect.
【００１６】尚、誤配線であると判定された場合には、
誤配線であることを知らせる点滅又は点灯ランプを設け
るようにしても、音ブザーによって通知するような構成
としても構わない。If it is determined that the wiring is incorrect,
A blinking or lighting lamp for indicating that the wiring is incorrect may be provided, or the sound may be notified by a sound buzzer.
【００１７】[0017]
【発明の効果】本願発明の誤配線チェックによると、室
内機全室の室内ファンを回し、室外機は圧縮機を起動さ
せると同時に、１つ目の制御弁を開く。この時、冷房運
転ならば、開いている制御弁に対応する室内機の熱交換
器温度が下がってくるので、それがどの部屋から室外機
のマイコンは常に探索する。室外機が室内熱交換器温度
を得る手段は室内外間のシリアル通信によるものであ
る。探索の結果ある１つの室内機が決定されれば、今ま
で開いていた制御弁は閉じ、２つ目の制御弁を開く。こ
の時、前回決定した室内機の熱交換器の温度変化はアン
ダーシュート現象を起こすが、次の室内の探索時には、
この熱交換器温度は無視し、他の決定されていない室内
のみを探索の対象とする。このような処理をすることに
より、誤配線のチェックを行うことができる。According to the erroneous wiring check of the present invention, the indoor fans in all the indoor units are turned on, and the outdoor unit starts the compressor and simultaneously opens the first control valve. At this time, if the cooling operation is performed, the temperature of the heat exchanger of the indoor unit corresponding to the open control valve decreases, so that the microcomputer of the outdoor unit always searches from which room it is. The means by which the outdoor unit obtains the temperature of the indoor heat exchanger is based on serial communication between the indoor and the outdoor. If a certain indoor unit is determined as a result of the search, the control valve that has been open so far is closed and the second control valve is opened. At this time, the temperature change of the heat exchanger of the indoor unit determined last time causes an undershoot phenomenon, but when searching for the next room,
This heat exchanger temperature is ignored, and only other undecided rooms are to be searched. By performing such processing, it is possible to check for erroneous wiring.
【図１】本願発明を示すフローチャートである。FIG. 1 is a flowchart showing the present invention.
【図２】本願発明を示すフローチャートである。FIG. 2 is a flowchart illustrating the present invention.
【図３】本願発明の多室空気調和機の構成図である。FIG. 3 is a configuration diagram of the multi-room air conditioner of the present invention.
【図４】従来の多室空調機の作用を示すフローチャート
である。FIG. 4 is a flowchart showing the operation of a conventional multi-room air conditioner.
Ｂ１，Ｂ２，Ｂ３，Ｂ４ 室内機 Ａ１，Ａ２，Ａ３，Ａ４ 制御弁 １０１ 室外機 ２０１ 熱交換器 ２０２ 熱交換器 ２０３ 熱交換器 ２０４ 熱交換器 ２００ 誤配線チェックスイッチ ２０５ マイコン ２０９ 配線 ２１０ 配管パイプ B1, B2, B3, B4 Indoor unit A1, A2, A3, A4 Control valve 101 Outdoor unit 201 Heat exchanger 202 Heat exchanger 203 Heat exchanger 204 Heat exchanger 200 Miswiring check switch 205 Microcomputer 209 Wiring 210 Piping pipe
Claims (2)
機と、制御弁と、該熱交換器内に流れる冷媒温度を検知
する温度センサと、前記室外機と該室内機とが配管パイ
プ及び配線とで接続されている多室型空気調和機におい
て、前記室外機に誤配線チェックスイッチが設けられて
おり、該誤配線チェックスイッチを押すと前記熱交換器
内に流れる冷媒温度の変化に基づいて誤配線であるかど
うかを判定する誤配線チェック手段が用いられているこ
とを特徴とする多室型空気調和機。1. A plurality of indoor units having a heat exchanger, an outdoor unit, a control valve, a temperature sensor for detecting a temperature of a refrigerant flowing in the heat exchanger, and piping between the outdoor unit and the indoor unit. In a multi-room air conditioner connected by pipes and wires, the outdoor unit is provided with a miswiring check switch, and when the miswiring check switch is pressed, a change in the temperature of the refrigerant flowing in the heat exchanger occurs. A multi-room air conditioner, wherein an erroneous wiring check unit that determines whether or not erroneous wiring is performed based on the erroneous wiring is used.
を運転させてから各室内機に対応する前記制御弁を一つ
ずつ順番に開いていき、前記熱交換器の温度情報に変化
が生じる室内を前記制御弁に対応する室内だと判定し、
一度判定した室内の熱交換器の温度変化は、次の室内探
索の対象から除外することを特徴とする請求項１記載の
多室型空気調和機。2. The erroneous wiring check means operates the compressor and then opens the control valves corresponding to the respective indoor units one by one in order, so that a change occurs in the temperature information of the heat exchanger. Determining that the room is a room corresponding to the control valve,
The multi-room air conditioner according to claim 1, wherein the temperature change of the indoor heat exchanger once determined is excluded from a target of a next indoor search.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000100231A JP3645784B2 (en) | 2000-04-03 | 2000-04-03 | Multi-room air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000100231A JP3645784B2 (en) | 2000-04-03 | 2000-04-03 | Multi-room air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001289480A true JP2001289480A (en) | 2001-10-19 |
| JP3645784B2 JP3645784B2 (en) | 2005-05-11 |
Family
ID=18614462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000100231A Expired - Fee Related JP3645784B2 (en) | 2000-04-03 | 2000-04-03 | Multi-room air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3645784B2 (en) |
Cited By (10)
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| EP1643193A2 (en) | 2004-10-02 | 2006-04-05 | Samsung Electronics Co., Ltd. | Method of determining the configuration of an air conditioning system |
| KR100614224B1 (en) | 2004-11-22 | 2006-08-21 | 엘지전자 주식회사 | Apparatus and method for searching a piping |
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| WO2008114919A1 (en) * | 2007-03-16 | 2008-09-25 | Lg Electronics Inc. | Pipe probing method for air conditioner |
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