JP4110843B2

JP4110843B2 - AIR CONDITIONER, AIR CONDITIONER INSTALLATION METHOD

Info

Publication number: JP4110843B2
Application number: JP2002168176A
Authority: JP
Inventors: 義浩田邉; 秀明永友; 聡鈴木; 哲治岡田; 勝西郷; 義弘石橋; 国博森下; 靖英早丸
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-06-10
Filing date: 2002-06-10
Publication date: 2008-07-02
Anticipated expiration: 2022-06-10
Also published as: JP2004012058A

Description

【０００１】
【発明の属する技術分野】
この発明は、床暖房と空気調和機による暖房運転を併用可能な空気調和装置に関する。
【０００２】
【従来の技術】
図１１は従来の構成の例で、特開２０００−５５４４５号公報に示される冷媒回路・水回路図である。図１１に示すように、従来の空気調和機としては、圧縮機１、凝縮機としての温水熱交換器２６、電動膨張弁５ｂおよび蒸発器が環状に接続された冷媒回路と、この温水熱交換器２６を介して循環ポンプ２８により温水が循環する床暖房パネルとを備えている。この空気調和機はヒートポンプにより温水熱交換器で温水を加熱し、その加熱された温水は、温水熱交換器を介して循環ポンプにより床暖房パネルを循環する。また、この空気調和機は、上記凝縮機として温水熱交換器以外に室内ユニットに室内熱交換器６を備え、その室内ユニットの空気調和による暖房運転を床暖房の補助として行う。室内ユニット用制御装置１３ａに設けられた入力装置６１と床暖房制御装置３５ａに設けられた入力装置６２で室内の温度ほかを調整するが、空気調和による暖房運転立ち上げ時に室内ファン１８で吹き出す風量を所定の大風量にした後吹き出し空気の温度によって床暖房運転中か否かでこの風量を設定するとともに水平フラップ６３を制御してドラフト感や送風音低減を図っている。この様に構成されている冷媒回路を用いた、床暖房システムの床暖房パネルは、部屋のフローリングの下に床暖房パネルを敷き詰めるものか、予めフローリングの下に床暖房を敷詰め部材にて、部屋全体にフローリングを行うものである。なお温水式床暖房だけを取り上げればガス燃焼の熱源による簡易型の床暖房装置なども提案されている。
【０００３】
【発明が解決しようとする課題】
特開２０００−５５４４５号公報に示される従来の空気調和機にもちいた、床暖パネルは部屋全体にフローリングを行うものであり、床面に合わせて床暖房パネルの加工を行う必要があり、大工工事を伴い作業が大掛かりなものであった。さらに床暖房パネルを敷く作業は大工工事が可能な作業者が実施し、また空気調和装置は電気工事作業が可能な作業者が工事する必要があり、専門工事の異なる複数の作業者が実施するため、工事費用も高額なものであった。
【０００４】
室外機から室内機への冷媒回路配管接続に加え、床暖房装置から床暖房パネルへの水回路配管接続と、２つの回路を形成する必要があるため、接続する延長配管の作業箇所が多くなり、作業性が大幅に悪化することがあった。また快適性を得るため床暖房による暖房と空調機を汲み合わせたとしても暖房立ち上げ時など床暖房の欠点を補強する通風制御が主体であった。
【０００５】
ガス燃焼式の場合、高温の温水が可能になり後敷きのように小型で簡易的な床暖房パネルを敷くことが可能になるが、後敷きタイプの床暖房パネルを通す水回路は通常架橋ポリエチレン性の配管を用いるため、この架橋ポリエチレン製の配管にて、床暖房パネルからまで室外機を接続し水回路を形成すると、特に室外側での配管の取りまわし作業が、これまでの空気調和装置での配管作業と異なり、作業性が悪化することがあった。さらにガス燃焼の燃料費が高く、また火を使用するので安全対策や燃焼空気の廃棄など設備が大掛かり隣大型の室外機が必要になる。さらに燃焼による温水が高温になる可能性があり低音やけどなどの対策が必要であった。
【０００６】
床暖房放熱パネルを備えた空気調和機の据えつけ作業では、冷媒回路を形成するための、室内から室外に配管を通すための壁に設けた配管穴に加え、水回路を形成するための室内から室外に配管を通すための、配管穴など作業性が悪化する問題があった。特に、集合住宅等のコンクリート製の壁の場合、配管穴をあける作業に多くの時間を必要とするため、作業性が大幅に悪化する。
【０００７】
床暖房パネルを備えた空気調和装置の回路構成として、冷媒回路及び水回路の２つの回路を構成する必要がある。２つの回路において、据えつけ規制が同一であればよいが、据えつけ可能な配管長の制限、高低差制限、室外機据えつけスペースの制限等、据えつけ規制が異なることが一般的である。さらに水回路の床暖パネルの設置には、据えつける部屋の据えつけ面積の規制等が加わる。そのため確実な据えつけ作業を行うためには、据えつけ業者が据えつける現地にて、部屋の据えつけ面積、配管長などを確認する事が必要である課題があった。
【０００８】
さらに温水回路を備えた空気調和装置は、水回路のメンテナンス作業（水またはブランインの追加、交換作業等）を必要とするため、室外機及び床暖房装置の設置場所の制約を必要とする。そのため、冷媒回路の延長配管もこれまで以上に長くする必要性が増すため、延長配管での圧力損失に伴う性能悪化が増すなどの問題があった。
【０００９】
本発明は以上のような問題を解決するためになされたもので、省エネルギーで安全性、信頼性が高く空気調和と床暖房機能を備えた取り扱いやすい空気調和装置を提供するものである。また本発明は一般家庭用エアコンを取り付ける業者などが水回路を含む床暖房装置をどのような場所でも簡単に確実に取り付けられ、かつ販売や据付に問題無いため安心して取り扱いできるものである。また空気調和機と一緒であっても後からでも床暖房機能を取り付けられる使い勝手の良い空気調和装置を提供するものである。さらに自由度が高くフレキシブルな据付や販売が可能な装置、方法を提供するものである。また本発明は、据付やメンテナンス作業が制約無しに簡単で安価な装置、方法を提供するものである。
【００１０】
【課題を解決するための手段】
この発明の請求項１の空気調和装置は、室内に配置され内蔵する室内ファンにより室内の空気を吸い込み空調された空気を吹出す室内機と、室外に配置され室外ファンを有する室外機と、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器及びこのブラインまたは水を循環させる温水配管を有し、冷媒配管と接続する接続口を設け室外に配置された床暖房機と、床暖房機と流路遮断機構を有する中継装置を介して温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能で床面に載置する位置を変更できる床暖房パネルと、を備え、流路遮断機構の流路開閉を行なうストップバルブは室内側に設けられ、床暖房パネルに接続される温水配管を外した時にストップバルブにより床暖房パネルの流路を閉じるものである。
【００１１】
この発明の請求項２の空気調和装置は、室内温度センサにて検出される室内空気の温度及び床暖房パネル内を循環するブラインまたは水の温度を圧縮機の回転数を変化させて制御する制御装置を備えたものである。
【００１２】
この発明の請求項３の空気調和装置は、温水配管は冷媒回路に接続された室外の床暖房機から室内までを中継する流路遮断機構を有する中継装置まで固定され、この中継装置から床暖房パネルまでをフレキシブルな配管で任意の床面上に載置して配置されるものである。
【００１３】
この発明の請求項４の空気調和装置は、床暖房パネルは床面との間に断熱シートを設けたものである。
【００１４】
この発明の請求項５の空気調和装置は、室外の床暖房機から室内までを中継する中継装置は温水配管を室外から室内に貫通する位置に、または冷媒配管とともに温水配管を室内に導入する位置に設けられる。
【００１５】
この発明の請求項６の空気調和装置は、室外の床暖房機から室内までを中継する中継装置を結ぶ温水配管に、銅配管を用い、この銅配管からなる温水配管を冷媒回路の配管と同じくフレア加工で接続したものである。
【００１６】
この発明の請求項７の空気調和装置は、室内から室外に冷媒配管を通すために壁に設けた配管穴と室内から室外に温水配管を通すために壁に設けた配管穴とを同一の配管穴を用いる。
【００１７】
この発明の請求項８の空気調和装置は、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器は、冷房・暖房の切替用四方弁及び室内側熱交換器の間に接続されるとともに、温水熱交換器と室内熱交換器の間に接続された絞り装置と、温水熱交換器と室内熱交換器の間に接続され、絞り装置と並列に設けられた電磁開閉弁と、を備えたものである。
【００１８】
この発明の請求項９の空気調和装置は、床暖房機の暖房能力は室内機の暖房能力と同程度以下とするものである。
【００１９】
この発明の請求項１０の空気調和装置は、圧縮機の回転数を変化させて暖房運転を行う際、室内温度設定可能な１台の遠隔制御装置にて操作可能とする。
【００２０】
この発明の請求項１１の空気調和装置据付け方法は、室内に配置され室内ファンにより室内の空気を吸い込み空調された空気を噴出す室内機と、室外に配置され室外ファンを有する室外機と、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器及びこのブラインまたは水を循環させる温水配管を有し、前記室外に配置された床暖房機と、床暖房機と中継装置を介して温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能な床暖房パネルと、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、室内機、室外機及び冷媒回路を室外及び室内に取り付けた後で、温水配管及び中継装置を室外及び室内に取り付けるものである。
【００２１】
この発明の請求項１２の空気調和装置据付け方法は、室内熱交換器、室内ファン、室内ユニット制御装置および室内温度センサを有する室内機と、圧縮機、室外熱交換器および室外ファン、減圧器、冷房・暖房の切替用四方弁及び室外ユニット制御装置を有する室外機と、室内機及び室外機に冷媒を循環させて冷房及び暖房運転等の空気調和機能を行う冷媒回路と、冷媒回路に床暖房用のブラインまたは水と冷媒と熱交換させる温水熱交換器を有し、循環ポンプ、水タンク等の水回路からなる、床暖房運転を行う床暖房機と、床暖房機と中継装置を介してブラインまたは水を循環させる温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能な床暖房放熱パネルと、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、据付現場にて室外機を据付た後で床暖房機を室外機に組み込み、冷媒配管を据付け冷媒を循環させた後で温水配管を据付けるものである。
【００２３】
この発明の請求項１３の空気調和装置据付方法は、室内に配置され室内の空気を吸い込み空調された空気を噴出す室内機、室外に配置され室外ファンを有する室外機、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路、を有し室内の空調を単独にて行う空調機と、空調機の冷媒回路に接続可能な床暖房用のブラインまたは水と冷媒回路の冷媒と熱交換させる温水熱交換器、循環ポンプ、水タンク、中継装置、及び床暖房パネルを温水配管で接続して床暖房運転の機能を行う水回路装置と、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、空調機と水回路装置を組み合わせて使用する場合、前記空調機単独で据付けて運転した後で、室内に配置し後敷きする床暖房パネルの仕様を選択可能なものである。
【００２４】
この発明の請求項１４の空気調和装置据付方法は、室内に配置され室内の空気を吸い込み空調された空気を噴出す室内機、室外に配置され室外ファンを有する室外機、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路、を有し室内の空調を単独にて行う空調機と、空調機の冷媒回路に接続可能な床暖房用のブラインまたは水と冷媒回路の冷媒と熱交換させる温水熱交換器、循環ポンプ、水タンク、及び中継装置を温水配管で接続して床暖房運転の機能を行う水回路装置と、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、空調機と前記水回路装置を組み合わせて使用する場合、空調機及び水回路装置を据付けて空調機の運転した後で、中継装置に温水配管で接続され室内に配置し後敷きする床暖房パネルの仕様を選択可能なものである。
【００２５】
【発明の実施の形態】
実施の形態１．
以下、この発明の空気調和機の一実施例を図１の回路図，図２の構造図，図３構成図で詳細に説明する。図１はこの発明の空気調和装置の一例における冷媒回路・水回路の概略構成図である。図において、室外機１０２に備え付けられた、１は圧縮機、２は上記圧縮機１の吐出側に一端が接続され冷房回路と暖房回路とを切り替えるための四方弁、３は上記四方弁２の他端に一端が接続された室外熱交換器、４は上記室外熱交換器３の他端に一端が接続された絞り装置としてのキャピラリーチューブ、５は同様に減圧装置としての電動膨張弁である。なおキャピラリーチューブ４の固定絞り装置は減圧弁５の調整を確実に行うために設けてある。また７は冷媒を貯留可能なアキュムレータ、８ａは室外機１０２にストップバルブを設置した冷媒配管接続端子部、9ａ、9ｂ、9ｃはマフラーであって冷媒音低減のため配管径より拡大させて設けられ、２０は霜取り検出温度センサ、２１は外気温度センサ、２２は圧縮機吐出温度センサ、２３は室外ファンモーターにて駆動される室外ファンである。さらに室内機１０１に備え付けられた６は電動膨張弁５の他端に接続された室内熱交換器、８ｃ及びストップバルブを設けた８ｅは延長銅配管１２ａ、１２ｂと接続される室内機に設けられた冷媒配管の配管接続端子部、１６は室内温度センサ、１７は管温センサである室内熱交換器温度センサ、１８は室内ファンモータ１９により駆動される室内ファンである。室外機１０２には室外制御装置１４が，室内機１０１には室内制御装置３５ａが設けられ各センサーの検出データを受け取り各機器や弁の制御が行われる。
【００２６】
１０３は床暖房機であって，室外機１０２の冷媒配管接続端子部８ａと一端が接続され他端が室内機の冷媒配管接続端子部８ｃと接続された冷媒配管と温水配管との間で熱交換を行う温水熱交換器２６が内蔵されている。この冷媒配管には逆止弁１０，電磁開閉弁１１，２段凝縮回路用絞り装置２５が接続されている。又温水配管には温水循環用ポンプ２８、温水タンク２９，冷媒配管の接続端子として床暖房装置にストップバルブを設けた端子８ｂや温水配管の接続端子、温水配管の接続端子３１ａ、３１ｂが接続されている。又水位センサー３８にて温水タンクの水位を監視すると共に温水送り水温度センサー３６，温水戻り水温度センサー３７，温水熱交換器の冷媒温度検知センサー３９がそれぞれの温度を検出し温水制御装置へデーターを送信しポンプのオンオフや弁の開閉が行われる。２７は床暖房パネルで床暖房機１０３との間は中継装置３０を介して温水配管である室外に配置される送り側延長銅配管３２ａと戻り側延長銅配管３２ｂ、室内に配置される送り側延長配管３３ａと戻り側延長配管３３ｂで接続されている。又室内側温水配管には接続端子３４ａ，３４ｂ，３４ｃ，３４ｄが設けられ，床暖房パネル２７には温度センサ４０を設けてある。また１３ａは室内制御装置であって，室内機に内蔵され室内ファン用モーター１９の制御他を行うと共にリモートコントローラ１３ａで設定される室内機の室内空気の目標温度である温度設定値などの情報を入力装置１３ｃで受け取り室内機に設けたセンサー１６，１７などのデータや処理結果と共に接続配線１５に接続される配線接続端子部１３ｂを介して室外制御装置１４や温水制御装置３５ａと信号交換し各制御装置と連動させて室内機，室外機，床暖房機の機器や弁の運転や制御を一緒に行っている。
【００２７】
図２は床暖房つき空気調和装置の構造を説明する構造説明図で図１の回路の内容を構造で説明するものである。室外機１０２は室外に配置した基礎の上に載せられ、室外機１０２の上に床暖房機１０３が固定金具などにより締付固定されている。室外機側面には冷媒配管の接続端子８ａ，８ｄが設けられ，この端子と接続される冷媒配管は上部の床暖房装置、たとえば床暖房機１０３の側面に設けられた接続端子８ｂから冷媒用延長銅配管１２にて室内機１０１へ接続され，室内機１０１の内部の室内熱交換器６に冷媒を循環させている。なおこの延長用銅配管１２は供給側と戻り側の２本が室内へ壁を貫通させる穴を通して配置されるが、同時に電気配線１５やドレン水配管５０も同じ穴を貫通して室内から室外に通す構造である。電気配線用接続部１４ｂ，３５ｂもそれぞれ室外機１０２，床暖房機１０３の同一側の側面に設けられそれぞれのカバー５８で配管接続端子と共に覆われる構造である。床暖房機１０３からは銅配管からなる温水用配管３２が中継装置３０まで固定して接続されている。この中継装置３０からはフレキシブルなポリエチレン配管にて温水配管３３が床暖房パネル２７まで接続されている。室外機は図１で示すように内部に冷媒配管に接続され冷媒を循環する圧縮機１、四方弁２，室外熱交換器３電動膨張弁５が固定され、また室外ファンの回転によりグリル５３より空気を吹出している。室内機１０１には同様に室内熱交換器６や室内ファン１８が内部に配置され空気を室内機グリル５４から吸込んでいる。なおこの室内機は図２のように室内の壁面に室内機取付板５１を介して固定される。
【００２８】
図３は図１，図２と同様な構造に対し床暖房機の内部を説明する構成図で，この床暖房機の内部には温水循環用ポンプ２８と２重管構造で温水熱交換器２６が配置固定されている。タンクや弁装置などは説明を省略してある。この２重管熱交換器の両端にはそれぞれ冷媒配管１２ｂ及び温水配管３３ａ，３３ｂが冷媒と温水がそれぞれ対抗流になるように接続され冷媒配管の温熱が温水配管に熱伝達される堵とも２個の熱交換器などの周囲には断熱材が設けられている。なお各配管の室外機１０２、床暖房機１０３、室内機１０１との配管接続は図３に示す通り図１，図２と同様である。但し温水用銅配管３２や中継装置３０は設けていない。又５６は室外機１０２に床暖房機１０３を固定する固定金具で上から床暖房機を室外機に載せると室外機の上面に設けられた穴の中に床暖房機の下部に配置されたバネ板が差し込まれ位置が固定され動かなくなるようになっている。
【００２９】
図１，２，３が示すように床暖房装置の床暖房機１０３には温水熱交換器２６と並列に逆止弁を有する並列回路が設けられている。四方弁２を切換えて室内機６の空調を冷房や暖房などのモードを選択できるが，暖房時はこの逆止弁１０により並列回路に流れずに温水熱交換器を通す回路となり、又冷房時はこの逆止弁を設けた回路をそのまま流れることができる。このように床暖房機１０３に備え付けられた逆止弁１０は冷房回路運転時に冷媒をバイパスして流れるように室内熱交換器６の他端に一端が接続され、更に温水熱交換器２６と直列に接続された絞り装置２５は暖房運転を行う回路の時に圧力を高める二段凝縮回路とするために上記室内熱交換器６の他端に一端が接続されている。又この絞り装置と並列に設けられた電磁開閉弁１１は暖房回路時に通常の一段凝縮回路と二段凝縮回路とを切り替えるために上記室内熱交換器５の他端に一端が接続されている。凝縮回路を電磁開閉弁１１で切換えて水温調整を行うことができる。この温水熱交換器２６は上記絞り装置２５と電磁弁１１が接続され逆止弁を有する並列回路と冷媒の流方向により自動的に切換えて使用されるが，この並列回路に電磁開閉弁を設け室内機６を単独で暖房に使用するなど各種の運転を希望に応じてリモコンで設定するモードにより行うようにすることは当然である。
【００３０】
床暖房機１０３に設けられた給水ポンプ２８は温水配管内に入れられた水又はブラインを循環させるポンプでありほぼ一定の回転で温水を循環させている。温水の循環では流量精度を必要とせず細かい流量制御を行わないので起動時や運転時などに音の静かなプロペラ式のポンプ及びポンプ駆動用インダクションモーターなどが選択される。この給水ポンプ２８と直列に温水タンク２９が設けられこの給水ポンプ２８を運転しつづけ、温水タンク２９に貯留された温水を循環させることにより圧縮機１が停止し冷媒の循環が無い状態でも床暖房機１０３を運転して床暖房を行うことが可能になっている。さらに室外機１０２には、四方弁２を介して一端が接続され、他端が圧縮機１の吸入側に接続されたアキュムレータ７があり、冷房時と暖房時の冷媒量の違いなどから発生する余分な冷媒量を貯留するがこのアキュムレータを除くことも可能である。又室外熱交換器３と電動膨張弁５の間にはキャピラリーチューブ４を設け膨張弁５の調整をより確実なものとする。冷媒回路を形成する冷媒配管内を圧縮機１の圧力により冷媒が循環しているが，この冷媒は自然冷媒でもＨＦＣ系冷媒でも良く，例えばＲ４１０Ａを使用している。更に室外機１０２の冷媒回路を床暖房機とを連結するための配管接続端子部が８ａであり、さらに室内機１０２側とを連結する延長配管を結ぶための配管接続端子部を備えており、ガス冷媒側が８ｂ、８ｃ、液冷媒側が８ｄ、８ｅである。なお冷媒回路の接続端子には開閉弁などによるストップバルブを設けている個所があるがこれは室外機に予め冷媒を封入し据付現地で配管をつなぐ事により弁を開放させるためである。
【００３１】
以上の冷媒回路で冷房運転時は圧縮機１から吐出された高温高圧の冷媒は，四方弁２から室外熱交換器３で凝縮され膨張弁５で膨張して室内熱交換器６で蒸発し逆止弁１０を通り四方弁からアキュムレータ７を経由して圧縮機に戻される。この室内熱交換器の蒸発の際にこの熱交換器に流れる室内空気から熱を奪い室内の冷房を行う。一方四方弁を切換えで暖房運転を行う時は圧縮機から四方弁を通った高温高圧の冷媒は逆止弁１０で阻止されて温水熱交換器２６で一部が凝縮され更に室内熱交換器６で凝縮されて空気に熱を伝え室内空気を暖房してから室外熱交換器３で蒸発し再び四方弁２，アキュムレータ７から圧縮機に戻される。室外熱交換器３の近傍には室外ファン２３及びそのモータ２４が設けられ室外空気と冷媒管を熱交換し、室内熱交換器６の近傍には室内ファン１８及びそのモータ１９を備え室内空気との間の熱交換を行っている。また、冷媒回路には冷媒回路の運転状態を把握するための温水熱交換器温度センサ３９、室内熱交換器温度センサ１７、室外熱交換器温度センサ２０、圧縮機から吐出する冷媒温度を検知する吐出温度センサ２２を備え、更に室内空気の温度が設定された目標値に制御されているかの様に、冷媒回路を運転するにあたり必要な、室内の温度を検知する室温センサ１６を備えている。
【００３２】
また床暖房機１０３と床暖房パネル２７からなる床暖房装置には床暖房を行う温水熱交換器２６の温水配管の一端に一端が接続された床暖房パネル２７、床暖房パネル２７の他端に一端が接続され、ブラインの膨張収縮を吸収するためのタンク２９、タンク２９の他端に一端が接続され、他端が温水熱交換器２６の他端に接続された循環ポンプ２８があり、これらより水回路を形成している。更に、床暖房パネル２７と、床暖房機との水回路において温水配管を室内から室外に渡すとともに温水配管を中継するため温水配管３３を外した時に水を遮断するストックバルブ付きの端子を設けてある中継装置３０であり、室内の壁面または床面等に設けている。この中継装置３０と床暖房機１０３とを連結する延長配管を結ぶための接続配管部が接続端子３１ａ、３１ｂであり、延長配管３２ａ、３２ｂは銅配管で接続する仕様である。また中継装置３０と床暖房パネル２７とを連結するための接続部が接続端子３４ａ、３４ｂ、３４ｃ、３４ｄであり、この床暖房パネルとの接続端子にストップバルブを設けることにより配管をはずすときのパネルからの水の流れだし対策とすることができる。更にここでは架橋ポリエチレン製の配管を使用しているため、床暖房パネル２７の移動を可能にしパネル位置を自由に変更できるようにしている。
【００３３】
また、上記空気調和機の制御部はワイヤレスリモートコントローラ１３ｄ等からの入力装置１３ｃ、室内ファン１８やフラップを制御すると共に他のユニットへの制御信号を送る室内制御装置１３a、さらに循環ポンプ２８や電磁弁１１の制御をすると共に他のユニットへの制御信号を送る温水制御装置３５ａ、さらに圧縮機１、四方弁２、電動膨張弁５や室外ファン２３の制御をすると共に他のユニットへの制御信号を送る室外制御装置１４から成る。
【００３４】
図４に床暖房パネルの構成を説明する床暖房パネル構成図を示す。図４ａは床暖房パネルに断熱材４２を貼り付けしたフローリングタイプ説明図，図４ｂは床暖パネルの上に普通のカーペットなどを敷くカーペットタイプ説明図，図４ｃは床の上に床暖房パネルを置く後敷きタイプの説明図である。４１は木材フローリングに温水配管を装着する床暖房パネル構成，４２は床暖房パネルの断熱材、４３は床と床暖房パネルとの間の断熱材シーとでカーペットタイプに使用する床暖房パネルである。これらの図で説明する床暖房パネルのうち、ａは木材の下に温水を流すための架橋ポリエチレン製の温水配管を備えた木材フローリングによるパネルで、温水配管に温水を循環させて床面に放熱し床面を温め室内を暖める。また下面には断熱材を備えており、床面以外への熱の放熱を阻止するとともに、部屋の床面へのキズや、熱による変形をも防止すべく強度補強する構成としている。ｂは和室用として後から取付け可能なカーペットタイプもあり、この場合はカーペットの中に、温水配管を備えたものであり、この他にパネル上に、一般のカーペットを備え付けることも可能である。もちろん断熱材をパネルの下に敷いても良い。ｃは床の上に断熱材とフローリングタイプの放熱パネルを貼りつけたもので、何時でも，すなわちエアコン取り付け時以外でも後から取付けることできる。また中継装置３０にフレキシブルな温水配管３３を着脱するだけで何処へでも動かすことができ、これらの、床暖房パネルは、お部屋の床や畳の上に置くだけで、お部屋の床面に合わせての切断やパネルの追加等の作業は不要である。このため床面積に応じて、例えば２畳用／２．５畳用／３畳用／４畳用／４．５畳用／６畳用／８畳用／１０畳用等に予め設定されている。また、床暖房パネルの製造及び在庫管理を容易し、床暖房パネルのコスト低減を図るため、例えば６畳用のパネルを設定する場合、２畳用のパネルを３枚組み合わせて使用したり、３畳用のパネルを２枚組み合わせて使用してもよい。この様に、組み合わせて使用する場合は、各温水配管を結ぶ作業が追加になり予め工場で接続してもよいが、簡単な作業であるため、現地で接続してもよい。
【００３５】
次に、図５，図７，図８、図９にて床暖房パネル等で構成された床暖房装置について、温水回路等の据えつけ方法を説明する。図５は室内機器取りつけ配置図，図７は中継装置取付け説明図，図８は中継装置プラグ外観図，図９は室外機に床暖房機を取付ける装着説明図である。について、室内側での作業について説明する。７０は室内と室外を分ける壁面，７１は樹脂チューブ７４で形成される流路７３を内部に有するコンセント本体，７２はストップバルブ用のピン，７６は接続端子配管固定材７５にて本体７１に固定される銅配管である。又８０はコンセント本体７１に着脱自在に勘合されるプラグ，８１はストップバルブ用のバネ８２で流呂の開閉を行うストッパー機構であって，プラグ８０がコンセント本体から外されている状態ではバネ８２の力でストッパー機構がプラグの流路を閉じで室内側床暖パネル２７と接続される温水配管である架橋ポリエチレン管から温水が流れ出すことは無い。一方コンセント本体７１にプラグが挿入され勘合している間は流路７３が確保される。
【００３６】
このように図５，図７，図８の如く床暖房パネル２７には温水を通す架橋ポリエチレン製の温水配管３３ａ，３３ｂが組み込まれており、この温水配管３３ａ，３３ｂは２本一緒に外周を覆われて室内の壁面７０迄導かれ、壁面には温水回路の中継装置３０が設けられ、この中継装置３０は、床暖房パネル２７の温水回路を簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でも温水回路中のブラインまたは水が漏れることがない、ストッパー機構８１を有している。室外では図９に示すように室外機を先ず室外の基礎５２に据付ける。この室外機１０２の上に床暖房機１０３を装着するが、この後で室外機１０２と床暖房機１０３の配管と配線の接続を各端子で行う作業を含め先に工場などで行っておく。又室内機の位置が決定次第配管用の穴あけを行う。
【００３７】
次に空気調和装置の基本機能である、冷房、暖房運転等を行うための冷媒回路の据えつけ方法についてを説明する。室内機１０１を室内壁面に図２で説明した室内取付板５１を壁面７０に取付けた後で室内機本体をこの取付板５１に固定する。この時、冷媒の配管１２と電気配線１５と、凝縮水を室外に導くための配管５０を壁面７０に通す穴５７を室内機の裏側の壁面に設け、この配管穴を通じてそれぞれの配管、配線、を室外に導く。次に室外機１０２を屋外に設置する。この時電気配線として電源線５７はこの配管穴を通しても良いし別のルートで室外機に配線しても良い。さらに室外機及び床暖房機の冷媒の出口と入口となるストップバルブ８a、８ｂに、それぞれ延長用銅配管１２ａ、１２ｂをフレア加工済みの先端をネジ締付などにて接続する。さらに配管の他方を、室内より導かれた、室内冷媒配管端子８ｃ、８ｅと結ぶ。さらに室内より導かれた、室内機１０１と室外機１０２との、電源供給及び信号の送受信をつかさどる電線１５を、電気品端子部１３ｂ、３５ｂに接続し床暖房装置とを結ぶ。尚、ここでは室外機と床暖房装置は配管及び電気配線は予め接続されている。次に、室外機１０２及び床暖房装置１０３の温水回路据えつけが必要となるので、ブラインまたは水の注入，追加及び交換作業等での作業スペースを考慮して、室外機の設置場所を選定する。次に、冷媒配管内に存在する空気を、室外機１０２のガス側ストップバルブ８ａに設けられた真空引き用の冷媒ポートより真空ポンプにて排出し、その後室外機１０２にあらかじめ封入されている冷媒を、ストップバルブの冷媒開閉弁を全開し、室内と室外の冷媒回路を形成する。
【００３８】
この後で、冷媒漏れの確認、冷房または暖房運転の動作確認を行い、冷媒回路で形成された空気調和装置の作業を終了する。以上は、これまでの冷凍サイクルにて形成された空気調和装置の据付作業と同一である。つぎに床暖房装置の取付けにかかる。部屋に後敷き形の床暖房パネル２７を敷く、この床暖房パネルは架橋ポリエチレン製の温水配管の入口３４ｂと出口３４ｄの接続部３４を備えている。さらに、部屋の壁に室外に温水配管を通すための、配管穴を設ける。またこの配管穴に、前記床暖房パネルとを接続するための中継装置３０を設置する。次に中継装置と床暖房パネルの温水接続部を、必要に応じ延長用の温水配管３３を用いて中継装置とをつなぐ。中継装置３０の壁面への穴あけは図７の如く室内から室外に本体７１が貫通する形状でも，室内側の壁面に本体７１を埋め込み銅配管７６又はこの配管７６につながる温水配管３２が通る穴をあける形状などでも良い。その場合銅配管７６は簡単に曲がるので折り曲げて使用すると良い。
【００３９】
次に、室外側での温水回路の据えつけ作業について説明する。床暖房装置に設けられた、温水回路の出口、入口部となる２つの配管接続端子部３１に、冷媒回路での配管作業と同じく、温水回路の延長用銅配管をフレア加工済みの先端にネジ締付などで固定接続する。さらに配管の他方を、中継装置から室外側に導かれた、配管接続部７７とを接続し、温水回路を形成する。
【００４０】
次に温水回路の中に、ブラインまたは水入れ作業について説明する。床暖房機１０３は上部の蓋で開放可能になっておりこの蓋を開き、まず内部に固定された温水タンク２９の上部に設けたキャップを開けブラインまたは水を注入する。次に、温水制御装置３５ａに設けた、ポンプ単独運転スイッチにより、ポンプ２８の単独運転を行う。すると温水タンク２９内のブラインまたは水が循環しながら、温水回路中に含まれた空気を室外に追い出しを行う。また水が循環する事で温水タンク２９中のブラインまたは水の水面が低下するため、再度ブラインまたは水を注入する。そこで、温水回路中の空気が全て室外に追い出しされると、温水タンク中の水面が安定し、予め設定した注水線までブラインまたは水を注入し作業が完了する。この後各部の緩み等を点検し蓋を閉めると据付を完了し必要な運転テストなどで使用可能状態となる。
【００４１】
ここで、温水回路のメンテナンス方法について説明する。温水回路中のブラインまたは水は主に温水タンク２９内の外気と通じる隙間，例えば給水タンク２９に注水しすぎた場合排水するオーバーフロー回路やキャップなどより、徐々に減少してくる。温水タンク内２９の水が減少すると、循環ポンプ２８に空気が吸引されポンプの寿命が低下する。そのため、温水タンク２９内にはフロートスイッチ３８等を設け、水位を検知しており、水位が一定水準以下まで低下した場合は、循環ポンプ２８の停止を行う。従って、一定期間毎や運転が出来ない場合などに、ユーザもしくは専門作業者によりブラインまたは水の補給を行う。さらに、特にブラインを使用している場合は、ブラインの酸化材等が劣化するため、数年毎にブラインの交換作業を行う。床暖房装置は、以上の様なメンテナンス作業が必要となるため、メンテナンスの作業性を考慮し、室外機及び温水装置の据えつけ場所を選定する。したがって、これまでの空気調和装置よりも、据えつけ場所が限定されるため、室内機との冷媒配管をつなぐ延長配管の長さが室内機単独の従来例より長くなる傾向がある。本例では、冷媒としてＨＦＣ系冷媒であるＲ４１０Ａを使用しおり、高圧冷媒でガス密度が高いため、延長配管での冷媒の圧力損失が少ないため、延長配管を長く設けても性能の低下を抑える事を可能としている。ただしほかの種類のＨＦＣ冷媒やＣＯ２などの自然冷媒を使用できることは言うまでもない。以下に上記構成の空気調和機における動作を説明する。
【００４２】
リモートコントローラから運転内容（暖房、冷房、床暖房、暖房＋床暖房、除湿等）や室温及び床温度の設定温度等の条件信号を、室内制御装置が受けると、室内制御装置から床暖房制御装置へ制御信号が送られる。床暖房制御装置で運転内容に応じて制御信号が置換された後、床暖房制御装置から室外制御装置へ運転内容に応じて信号が送られ運転が開始される。
【００４３】
ここでは床暖房付の空気調和機であるので暖房＋床暖房の運転について説明する。四方弁は暖房回路の位置（図１における実線表示位置）に固定され、圧縮機１が運転する。圧縮機１から吐出された冷媒は、逆止弁１０の配設された冷媒配管を通れないので、温水熱交換器２６で凝縮して放熱し、電磁弁１１が閉じている時は絞り装置２５を通って減圧された後、室内熱交換器６で温水熱交換器２６よりも低い凝縮温度で凝縮して放熱する。また、電磁弁１１が開いているときは電磁弁１１が配設されているバイパス配管を通って、温水熱交換器２６と略同じ温度で凝縮して放熱する。室内熱交換器６から出た冷媒は、電動膨張弁５で膨張した後、室外熱交換器３で蒸発して外気から吸熱し、アキュムレータ７を介して圧縮機１の吸入側に戻っていく。この電磁弁の開閉動作は、床温度と床温度の設定温度との差が大きい場合のみ、電磁弁を閉にし、それ以外は電磁弁を開の状態になるように、床暖房制御装置で制御される様になっている。
【００４４】
一方、循環ポンプ２８が運転すると、水タンク２９からブラインが温水熱交換器２６に送り込まれ、温水熱交換器２６内で冷媒の凝縮熱で加熱された後、床暖房マット２７に送り込まれていく。床暖房マット２７に送られた加熱ブラインは床暖房マット２７を加熱することで室内に放熱した後、水タンク２９に戻って循環が繰返される。
【００４５】
次に圧縮機１の運転周波数の制御方法について簡単に説明する。現在室温とリモートコントローラで入力した室温の設定温度との差をもとに、圧縮機の運転周波数を室内制御装置１３で演算させ、その演算結果を温水制御装置に送信する。また温水制御装置では、水回路の戻り水温度センサ２９と床温度の設定温度差を演算する。さらに床暖房制御装置では、室温と設定温度との差と床温度と床温設定温度との差を比較し、大きい温度差の方を室外制御装置に送信する。また室外制御装置は、この温度差に応じて、圧縮機１の回転数を制御を行う。すなわち設定温度との差が大きいほど、圧縮機１の回転数を上昇し能力を高めた運転を行う。また室温と床温度の設定温度より高くなった場合は、圧縮機１を停止する様に制御を行い、室温のみ設定温度に到達した場合は、室内制御装置は、室内のファン速を微弱な回転数に低減し、暖房能力を弱めた運転を行い、床温度のみ床温度の設定温度以上に到達した場合は、水回路のポンプを停止して、温水の循環を停止する運転を行う。
【００４６】
以下、この発明の空気調和機の別の例を図６の配置説明図にて説明する。図６は空気調和の冷媒配管用の配管穴を温水回路の温水配管にも共用した場合の空気調和装置の据付を説明する図で，図５の説明では部屋の壁に室外に冷媒配管１２及び温水配管３２を通すための配管穴を２つ設けた例で説明を行ったが、しかし特に集合住宅においては、コンクリート壁に穴を開ける作業が難しいため、あらかじめ空気調和装置据え付けのための配管穴を設けている場合が多い。そのような住宅環境を考慮し、空気調和装置用の配管穴に水回路用の配管穴を共有することで、作業効率が大幅に改善される。この穴から冷媒配管１２、温水配管３２，ドレン水配管５０，配線１５などを一括して通すことができる。なお中継装置３０を設けない場合も構成は可能であるが，中継装置を設ける場合は室内の冷媒配管を室内に導入する位置の近傍，例えば図６では配管穴の下であり，この位置をずらしたとしても室内に配置すると据付けが便利である。配管穴からこの中継装置までは銅管で接続している。その他は、上記と同様のため説明を省略する。
【００４７】
以下、この発明の空気調和装置の別の据付方法についてを説明する。上記説明の空気調和装置では、空気調和装置の室外機１０２にあらかじめ床暖房装置１０３を備え付けたもの，すなわち室外機や室内機などと一緒に床暖房機や床暖房はネルを取付ける例に示したが、空気調和装置と床暖房装置とを現地にて組み付け作業を行ってもよい。この場合現地にて、室外機に床暖房装置を装着するとともに、冷媒配管の接続部であるストップバルブ８ａ、８ｅの接続作業と、室外制御装置と温水制御装置との配線を結ぶ作業を行う。その他は、上記の説明と同一であるため説明を省略する。この様にする事で、現地にて床暖房装置及び床暖房パネルを組み付ける事が可能であるから、部屋の据えつけ面積、配管長などを確認した後に床暖房装置の据え付け作業を行う事ができるため、作業が確実のものとなる。この様に、床暖房装置を後から据付けする事を可能とする事により、仮に、床暖房パネルの面積が大きすぎて、部屋に収納できなかった場合等は、床暖房パネルの仕様をさらに小形のものに変更したり、先ず部屋に合うパネルを仮置きしてから購入契約するなどの契約形態も可能となり、安心して購入する事ができる。更にまた、室外機，室内機，冷媒回路などの空調機を先に購入し，後から床暖房装置や床暖パネル等の別売の物を購入することができユーザーはエアコンだけを導入しこのエアコン能力と据付ける部屋の必要な能力にマッチした暖房の過不足を実態感覚で確認してから次に部屋の暖房に適した床暖房装置を購入するなど必要なものを必要な時に購入でき負担が少なくなる手段が取れる。又販売側は、別売り設定することが可能になり、エアコンと床暖を取付ける部屋を変えたい、暖房能力をアップしたい、夏前は暖房だけ据付けたり床暖房パネルは取り除いておきたい、冬前に床暖房を入れたいなどユーザーの多用な要求に対応できるサービス、例えば一部の機器を取り替えたり配置しなおすことにより可能になり販売機会の増大につながる。以上のように冷房や暖房運転を行うエアコンのみを購入した後に、後から床暖房機能を追加する事も床の張替えなどの改造を伴う大幅な工事や費用をかけること無しに簡単な作業で追加できる。すなわち販売や据付が自己完結しており何ら制約されること無く販売側は安心して取り扱うことができる。
【００４８】
床暖房を搭載した空気調和装置の据えつけ工事作業を容易に行われ、特殊の据付工具を必要とせず、専門工事業者を同一とするため、床暖房パネルを部屋の床面に合わせるといった大工工事が不要な後敷きタイプにすることにより、空気調和装置を据付け作業を行う電気工事作業者でも、簡単に床暖房パネルの取りつけ作業を可能とすることである。
【００４９】
この発明は室外機から室内機への冷媒回路配管接続に加え、床暖房装置から床暖房パネルへの水回路配管接続と、２つの回路を形成する必要があり、かつフレキシブル配置などにより接続する延長配管の作業箇所が多くなる。そのため据え付け作業の容易化を図るため床暖房装置から後敷きタイプの床暖房パネルとを結ぶ配管作業において、床暖房装置から外壁までを結ぶ配管作業と、室内壁から床暖房パネルを結ぶ配管作業とを切り離す中継装置を設け，且つ各配管接続部にストックバルブを設置し冷媒や水を確実に保持し漏らさないようにしている。
【００５０】
更にこの発明は床暖房パネルと床暖房機とを結ぶ温水回路の形成において、特に室外側での配管の取りまわし作業をこれまでの空気調和装置での配管作業と同一の作業方法で取りつけが可能となる様に、銅配管を用いて接続している。
【００５１】
床暖房放熱パネルを備えた空気調和機の据えつけ作業において、冷媒回路を形成するための、室内から室外に配管を通すための壁に設けた配管穴に加え、水回路を形成するための室内から室外に配管を通すための、配管穴と２箇所必要とするため、作業性が悪化することが想定されるため、冷媒回路を形成するため配管穴と、水回路を形成するための配管穴とを、同一の配管穴を使用する。
【００５２】
又この発明は、床暖房パネルを備えた空気調和装置の水回路を確実に据えつけ作業を行うために、据えつけ業者が現地にて、部屋の据えつけ面積、配管長などを確認する事が必要である。そのために一旦冷房や暖房運転等の空気調和を行うための、室外機及び室内機を据えつける作業を行い、この時、現地にて適切な床暖房パネルの面積、配管長などを確認することで床暖房装置の据えつけが可能か否かを判断し、可能であれば後から温水熱交換器、循環ポンプ、水タンク等からなる床暖房装置と床暖房放熱パネルからなる水回路の据えつけを可能とする。これにより性能のみならず据付けなど必要十分な能力の選定が可能で信頼性の高い製品が得られる。又この発明は、冷媒回路に使用する冷媒として、従来のＨＣＦＣ冷媒であるＲ２２に比べ、高圧冷媒であり、ガス密度が高い、ＨＦＣ冷媒であるＲ４１０Ａ、Ｒ３２を使用する。
【００５３】
以上より明らかなように、この発明の空気調和機は、床暖房パネルを後敷きタイプにしたことにより床暖房パネルの据付けに大工工事を不要とし、空気調和装置を据付け作業を行う、電気工事作業者でも、エアコン取付と同じ工具、同じ取付方法で、簡単に床暖房パネルの取りつけ作業を行うことが可能になり、ガスなどの火を取り扱うことなく安全で工事作業が容易になり、さらに工事の制約もエアコン取付と同じ簡単なレベルで工事費用を抑える事が可能となった。なお，床暖房パネルは後敷きタイプとすることであっても室外機と床暖房機を別々にすることは必要に応じて分ければ良いのであって，室外機内部の圧縮機などの構成品と温水熱交換器のように床暖房機内部の構成品を一緒の箱の中に収めても良く，また温水熱交換器は床暖房機から室外機の方へ移すなど熱源側部品の配置の構成は自由であることは当然である。
【００５４】
この発明は、床暖房パネルを後敷きタイプにしたとともに、床暖房パネルの下には断熱材を装着しており、床暖房パネルの熱を部屋の床面に放熱する事なく、熱を有効利用できるとともに、部屋の床面の熱による変形や、傷等を防止する事も可能となり、据え付け業者も安心して床暖房パネルを装着など可能となった。
【００５５】
この発明は、室外側に設けた床暖房装置と、部屋に設けた後敷きタイプの床暖房パネルとを結ぶ配管において、床暖房装置から外壁までを結ぶ配管作業と、室内壁から床暖房パネルを結ぶ配管作業とを切り離したため、水回路の配管取りつけ作業が容易にする事が可能となった。これによりさらに販売や取付位置など自由度が増して扱いやすい商品が得られた。
【００５６】
又この発明は、床暖房パネルと床暖房機とを結ぶ温水回路の延長配管において、特に室外側での配管の取りまわし作業を、これまでの空気調和装置での配管作業と同一の作業方法で取りつけが可能な銅配管を用ることにより、作業性の効率を向上する事が可能となり、さらに特別な据えつけ工具を用いず、空気調和装置の取り付け作業で用いる工具のみで作業ができる事が可能となった。
【００５７】
又この発明は，床暖房放熱パネルを備えた空気調和機の据えつけ作業において、室内機から室外機の冷媒回路を形成するために部屋の壁に設けた室内と室外とを貫通する配管穴と、水回路を形成するための配管穴とを同一の配管穴を使用したので特別な壁に開ける配管穴の作業が不要となり、据えつけ工事が容易になった。
【００５８】
又この発明は、床暖房パネルを備えた空気調和装置の水回路を確実に据えつけ作業を行うために、据えつけ業者が据えつける現地にて、部屋の据えつけ面積、配管長などを確認する事が必要である。そのために一旦冷房や暖房運転等の空気調和を行うための、室外機及び室内機を据えつける作業を行い、後から、現地にて床暖房装置を室外機に組み込む事を可能としたため、冷媒回路を有した空気調和装置の据えつけ作業を行うときに、床暖房装置及び床暖房パネルからなる水回路を据えつけるための、部屋の据えつける床暖房パネルの面積、配管長などを現地にて確認し、後から床暖房パネル等にて構成される水回路を据えつけることができるため、据付作業を確実に行えることが可能となった。
【００５９】
又この発明は、冷媒回路と前記水回路との据えつけ作業を切り離すことを可能とすることにより、ユーザはまず基本機能である冷房、暖房運転等を行うための冷媒回路からなる空気調和装置を購入した後、付加機能である床暖房運転を行うための、床暖房パネル等からなる水回路を別売として後から購入することも可能となった。
【００６０】
又この発明は、冷媒回路に使用する冷媒として、従来のＨＣＦＣ冷媒であるＲ２２に比べ高圧冷媒であり、ガス密度が高い、ＨＦＣ冷媒であるＲ４１０Ａ、Ｒ３２を使用ており配管での圧力損失が少なくなるため、冷媒回路の延長配管が長くなっても性能低下を最小限にとどめることが可能であるとともに、室外機及び床暖房装置の設置場所の自由度が高まることが可能となった。
【００６１】
次にこの空気調和装置の制御方法を説明する。ただし図１の回路構成では温水熱交換器２６のバイパス回路として冷房時にバイパスを通すため逆止弁１０を設けたが、この逆詞弁の代わりに開閉弁を用いても良い。もし開閉弁にすれば暖房時や暖房除湿時などでも温水熱交換器をバイパスさせた運転が行え、より幅の広い使い方ができる。室内機の運転を制御して室内の空調を行う制御は通常のものであり、ここでは温水ユニットによる室温制御及び床温制御を説明する。暖房時室内の温度調整制御のため温水の送り温度センサー３６と目標温水温度との温度差と室内温度センサー１６の検出する温度と目標室内空気温度の温度差を常に検出したとえば温度差の大きいほうの温度差の信号を室外機に送信し室外機にて圧縮機などの制御を行う。空調主体の運転を行う場合、床暖房機１０に設けた電磁開閉弁１１を開放状態で運転すると圧縮機１より高温高圧のガス冷媒が吐出し、四方弁２を通って温水熱交換器２６に流入しガス冷媒は温水循環用ポンプ２８により循環している２次熱媒体である水またはブラインと熱交換し吐出温度より冷却されたガス冷媒または乾き度の高い２相冷媒に凝縮する。温水熱交換器の温度の上昇したブラインまたは水は床暖房パネル２７へ循環して床暖房パネルの表面温度を上昇させて床暖房を行いひいては室内温度を上昇させる。温水熱交換器からこの２相冷媒は開放された電磁開閉弁１１を通り室内熱交換器６にて室内空気と熱交換し高圧で乾き度の低い気液２相冷媒または過冷却液冷媒に凝縮し絞り装置である電動膨張弁５により減圧され、室外熱交換器で蒸発して乾き度の高いガス冷媒などになり四方弁から圧縮機に戻る。
【００６２】
一方室内熱交換器では室内ファン１８により循環する室内空気が冷媒と熱交換して室内を暖房する。電磁開閉弁１１を通る場合、温水熱交換器２６と室内熱交換器６を通る冷媒は同じ高圧になり冷媒配管に設けた空気と接触するフィンにより伝熱面積を大きくとり伝熱性能を良くした室内熱交換器６の凝縮能力が２重管による伝熱を使用する温水熱交換器より相対的に大きく高圧の動作圧力が決まり空調暖房優先の運転を行うことができる。これに対し電磁開閉弁１１を閉鎖し冷媒を二段凝縮回路用絞り装置、たとえばキャピラリーチューブを通すと温水熱交換器２６から流れ出たガス冷媒または２相冷媒はこの絞り装置２５により高圧から中圧に減圧され、凝縮温度は温水熱交換器内の高温度から中温度へ低下し、室内熱交換器６にて中温度、中圧の２相冷媒は室内空気と熱交換し室内空気の空調暖房を行う。このように電磁開閉弁１１を閉じて絞り装置２５にて２つの凝縮温度を作り出し、高温度高圧の吐出ガス冷媒を室内熱交換器６より暖房時の冷媒の流れに対し前に設けた温水熱交換器に優先して流し、中温度中圧の冷媒を室内熱交換器６に流すことで床暖房主体の空気調和を行うことができる。圧縮機１から吐出された過熱ガス冷媒を有効に利用しこの高温度の凝縮温度と熱交換させたブラインまたは水を温水循環用ポンプ２８により床暖房パネル２７に循環させるとともに温水タンク２９に貯留し温水戻り水センサー３７により床温度を調整するように圧縮機の回転数である周波数を制御し空調を行うが、場合によっては温水循環ポンプのオンとオフによる調整も可能である。一方室内機では凝縮温度の低下した中温度中圧の冷媒を流すため空調暖房能力を抑制し、過大にすることなく床暖房主体で室温を適正に保つことができる。この運転は室温が省エネの目標値付近にあったり和室で座る生活の場合、エネルギーを節約しながら快適な省エネ運転に対しさらに有効となる。このような空調暖房主体運転モードと床暖房主体運転モードは自在にリモートコントローラ１３ａで切り替えられので生活様式や好み、あるいは床暖房パネル２７仕様の選択、もしくは配置位置、などの条件や状態に応じ自由に設定することができる。たとえば空調を行う室内機を居間に設け通常は室内機主体の暖房を行い、床暖房パネルが別の部屋たとえばキッチンやトイレなど出入りする個所に設け必要に応じ床暖房主体に切り替えるなど使い勝手の良い暖房を得ることができる。さらには居間とキッチンの両方に中継装置３０を配置しておけば床暖房位置の切り替えも可能になる。
【００６３】
図１０は床暖房つき空気調和装置の運転方法説明図で空調制御のフローチャートを示す。床暖房パネル２７へ流す２次側熱媒体であるブラインまたは水の温度Ｔｂを温水送り水温度センサー３６にて検出している（Ｓ３）。このブラインなどの温度があらかじめ設定された目標温度Ｔｂ０（Ｓ１）となるようにブライン検出温度と目標温度を比較し（Ｓ４）、ブライン温度が目標温度より低い場合は圧縮機１の周波数を増加し（Ｓ５）、ブライン温度が目標温度より高い場合は周波数を下げる（Ｓ６）調整を行う。一方室内機においてはあらかじめ設定された目標室温Ｔａ０（Ｓ２）に対し室内温度センサー１６によれ検出された実際の室内の空気温度Ｔａを検知し（Ｓ７）、室内の実際の空気温度と目標の空気温度の温度差が一定値αより大きいか小さいかを比較し（Ｓ８）、この温度差が大きくなれば室内ファン１８を通常ファン速度で暖房運転を行い（Ｓ１０）、この温度差が所定値より小さくなれば室内ファン１８を停止または低回転で運転し（Ｓ９）、暖房運転を停止または暖房能力を下げる。
【００６４】
以上の制御は室内制御装置１３ａ、温水制御装置３５ａと信号交換する室外制御装置１４にて行っているが、どこの制御装置で行っても、あるいは分散制御しても良い。また各制御装置の信号により保護制御を行っている。電磁開閉弁１１が閉鎖中は室内機より温水熱交換器の方の圧力が上がるため電磁開閉弁１１を開いているときの室内熱交換器温度センサー１７の信号から温水熱交換器の冷媒温度検知センサー３９の信号に切り替えて高圧保護相当の温度帯かどうかを検出し保護運転を行うことができる。またこの電磁開閉弁１１が開放から閉鎖されるときに急激な絞りが追加され蒸発圧力の急激な低下が起こる。このとき圧縮機からの冷凍機油持ち出し保護などのため電磁開閉弁１１を閉止するまえしばらくの間圧縮機の周波数を下げる運転モードを行う。またこの電磁開閉弁をオンしたりオフした後の冷媒温度により、あるいは温水循環用ポンプ２８をオンしたりオフしたりした後のブラインなどの温度により、あるいは床暖房パネル温度センサー４０などにより装置の異常判定を行うこともできる。また室内機の応急切り替えスイッチをポンプ２８の強制運転に切り替えるようにすることや、低音やけど防止を目的などの保護のため床暖房パネル温度センサと連動させてこのポンプを一時的に停止させる保護や室内機起動時には室温上昇を優先させるためポンプを停止させるなども可能である。なお室外制御装置は室内機単独の運転を可能にする標準品での制御を行っており、床暖房の制御や保護については通常の室内機暖房運転などに信号を置き換えて行うことにより、室内機を先に据付けて運転し、２−３年後に必要になって後から床暖房を追加するなどした場合でもこの運転制御は簡単に切り替えることができ、使い勝手の良い装置が得られる。また制御装置を何らいじることなく、また追加することなくエアコン単体と、床暖機能併設が使い分けられるので販売側としても安心して個別販売でも、組み合わせ販売でも供給できることになる。
【００６５】
【発明の効果】
この発明の請求項１の空気調和装置は、室内に配置され内蔵する室内ファンにより室内の空気を吸い込み空調された空気を吹出す室内機と、室外に配置され室外ファンを有する室外機と、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器及びこのブラインまたは水を循環させる温水配管を有し冷媒配管と接続する接続口を設け室外に配置された床暖房機と、床暖房機と流路遮断機構を有する中継装置を介して温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能で床面に載置する位置を変更できる床暖房パネルと、を備え、流路遮断機構の流路開閉を行なうストップバルブは室内側に設けられ、床暖房パネルに接続される温水配管を外した時にストップバルブにより床暖房パネルの流路を閉じるので、効率が良く，快適で取り扱いが簡単な空気調和装置が得られる。
また、床暖房パネルを簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でもブラインまたは水が漏れることがない。
【００６６】
この発明の請求項２の空気調和装置は、室内温度センサにて検出される室内空気の温度及び床暖房パネル内を循環するブラインまたは水の温度を圧縮機の回転数を変化させて制御する制御装置を備えたので、部屋の温度を快適にできる制御が簡単に得られる。
【００６７】
この発明の請求項３の空気調和装置は、温水配管は冷媒回路に接続された室外の床暖房機から室内までを中継する流路遮断機構を有する中継装置まで固定され、この中継装置から床暖房パネルまでをフレキシブルな配管で任意の床面上に載置して配置されるので、必要なところにパネルを配置でき、簡単に快適な床暖房が得られる。
【００６８】
この発明の請求項４の空気調和装置は、床暖房パネルは床面との間に断熱シートを設けたので、どのようなところでも安心してパネルを敷くことができる。
【００６９】
この発明の請求項５の空気調和装置は、室外の床暖房機から室内までを中継する中継装置は温水配管を室外から室内に貫通する位置に、または冷媒配管とともに温水配管を室内に導入する位置に設けられるので床暖房を据付ける作業が非常に簡単になる。
【００７０】
この発明の請求項６の空気調和装置は、室外の床暖房機から室内までを中継する中継装置を結ぶ温水配管に、銅配管を用い、この銅配管からなる温水配管を冷媒回路の配管と同じくフレア加工で接続したので、床暖房装置がエアコン据付作業と同じにでき簡単に取付けられる。
【００７１】
この発明の請求項７の空気調和装置は、室内から室外に冷媒配管を通すために壁に設けた配管穴と室内から室外に温水配管を通すために壁に設けた配管穴とを同一の配管穴を用いるので，作業に手間が要らなくなる。
【００７２】
この発明の請求項８の空気調和装置は、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器は、冷房・暖房の切替用四方弁及び室内側熱交換器の間に接続されるとともに、温水熱交換器と室内熱交換器の間に接続された絞り装置と、温水熱交換器と室内熱交換器の間に接続され、絞り装置と並列に設けられた電磁開閉弁と、を備えたので，床暖房を優先した運転が要望に応じて自由に行える。
【００７３】
この発明の請求項９の空気調和装置は、床暖房機の暖房能力は室内機の暖房能力と同程度以下とするので、暖房開始時の部屋の暖まりを急速に行えると共に効率の良い装置が得られる。
【００７４】
この発明の請求項１０の空気調和装置は、圧縮機の回転数を変化させて暖房運転を行う際、室内温度設定可能な１台の遠隔制御装置にて操作可能とするので，操作のし易い装置が得られる。
【００７５】
この発明の請求項１１の空気調和装置据付け方法は、室内に配置され室内ファンにより室内の空気を吸い込み空調された空気を噴出す室内機と、室外に配置され室外ファンを有する室外機と、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、冷媒回路に流れる冷媒と床暖房用のブラインまたは水とを熱交換させる温水熱交換器及びこのブラインまたは水を循環させる温水配管を有し冷媒配管と接続する接続口を設け前記室外に配置された床暖房機と、床暖房機と中継装置を介して温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能な床暖房放熱パネルと、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、室内機、室外機及び冷媒回路を室外及び室内に取り付けた後で、温水配管及び中継装置を室外及び室内に取り付けるので、エアコンと同一の作業内容で簡単な作業で据付けられる。
また、床暖房パネルを簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でもブラインまたは水が漏れることがない。
【００７６】
この発明の請求項１２の空気調和装置据付け方法は、室内熱交換器、室内ファン、室内ユニット制御装置および室内温度センサを有する室内機と、圧縮機、室外熱交換器および室外ファン、減圧器、冷房・暖房の切替用四方弁及び室外ユニット制御装置を有する室外機と、室内機及び室外機に冷媒を循環させて冷房及び暖房運転等の空気調和機能を行う冷媒回路と、冷媒回路に床暖房用のブラインまたは水と冷媒と熱交換させる温水熱交換器を有し、循環ポンプ、水タンク等の水回路からなる、床暖房運転を行う床暖房機と、床暖房機と中継装置を介してブラインまたは水を循環させる温水配管で接続され、室内の床面上に載置され床暖房を行う中継装置にて着脱可能な床暖房パネルと、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、据付現場にて室外機を据付た後で床暖房機を室外機に組み込み、冷媒配管を据付け冷媒を循環させた後で温水配管を据付けるので、取り扱いや工事の作業が簡単で確実となる。
また、冷媒配管を据付け冷媒を循環させた後で温水配管を据付けるので、安全で信頼性の高い装置の据付が可能となる。
また、床暖房パネルを簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でもブラインまたは水が漏れることがない。
【００７８】
この発明の請求項１３の空気調和装置据付方法は、室内に配置され室内の空気を吸い込み空調された空気を噴出す室内機、室外に配置され室外ファンを有する室外機、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路、を有し室内の空調を単独にて行う空調機と、空調機の冷媒回路に接続可能な床暖房用のブラインまたは水と冷媒回路の冷媒と熱交換させる温水熱交換器、循環ポンプ、水タンク、中継装置、及び床暖房パネルを温水配管で接続して床暖房運転の機能を行う水回路装置と、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、空調機と水回路装置を組み合わせて使用する場合、前記空調機単独で据付けて運転した後で、室内に配置し後敷きする床暖房放熱パネルの仕様を選択可能なので、ユーザーは室内の環境に適した暖房が得られる装置を必要なときに入手することができ、販売側は個別販売が可能になるなど販売機会が増える。
また、床暖房パネルを簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でもブラインまたは水が漏れることがない。
【００７９】
この発明の請求項１４の空気調和装置据付方法は、室内に配置され室内の空気を吸い込み空調された空気を噴出す室内機、室外に配置され室外ファンを有する室外機、室外機に配置された圧縮機、冷房・暖房の切替用四方弁、室外熱交換器、減圧器、及び室内機に配置された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路、を有し室内の空調を単独にて行う空調機と、空調機の冷媒回路に接続可能な床暖房用のブラインまたは水と冷媒回路の冷媒と熱交換させる温水熱交換器、循環ポンプ、水タンク、及び中継装置を温水配管で接続して床暖房運転の機能を行う水回路装置と、中継装置に設けられ、流路開閉を行ない床暖房パネルに接続される温水配管を外した時に床暖房パネルの流路を閉じるストップバルブを室内側に配置した流路遮断機構と、を備え、空調機と前記水回路装置を組み合わせて使用する場合、空調機及び水回路装置を据付けて空調機の運転した後で、中継装置に温水配管で接続され室内に配置し後敷きする床暖房パネルの仕様を選択可能なので必要十分な能力を有する装置を確実に得ることができる。
また、床暖房パネルを簡単に取りつけ、取り外しが可能であり、さらに取り外した場合でもブラインまたは水が漏れることがない。
【図面の簡単な説明】
【図１】本発明の実施の形態１に関わる回路構成図。
【図２】本発明の実施の形態１に関わる床暖房付き空気調和装置の構造説明図。
【図３】本発明の実施の形態１に関わる床暖房付き空気調和装置の構成図。
【図４】本発明の実施の形態１に関わる床暖房パネルの構成説明図。
【図５】本発明の実施の形態１に関わる床暖房付き空気調和装置の室内構成説明図。
【図６】本発明の実施の形態１に関わる床暖房付き空気調和装置の別の室内構成説明図。
【図７】本発明の実施の形態１に関わる中継装置構成説明図。
【図８】本発明の実施の形態１に関わる中継装置のプラグ外観図。
【図９】本発明の実施の形態１に関わる室外機に床暖房装置装着する構成説明図。
【図１０】本発明の実施の形態１に関わる床暖房付き空気調和装置の運転方法説明図。
【図１１】従来の冷媒・水回路構成図
【符号の説明】
１圧縮機、２四方弁、３室外熱交換器、４キャピラリーチューブ、５電動膨張弁、６室内熱交換器、７アキュムレータ、８、８ａ配管接続端子部（室外機にストップバルブ設置）、８ｂ配管接続端子部（床暖房装置にストップバルブ設置）、８ｃ配管接続端子部（室内機（ガス側））、８ｄ配管接続端子部（室外機にストップバルブ(液側)）、８ｅ配管接続端子（床暖房装置にストップバルブ設置）、８ｆ配管接続端子部（室内機（液側））、９、９ａマフラー１、９ｂマフラー２、９ｃマフラー３、１０逆止弁、１１電磁開閉弁、１２ａ延長銅配管（ガス側）、１２ｂ延長銅配管（液側）、１３ａ室内ユニット用制御装置、１３ｂ室内ユニット制御装置の配線接続端子部、１３ｃ室内ユニット制御装置の入力装置、１３ｄリモートコントローラ、１４室外ユニット用制御装置、１５接続配線、１６室内温度センサ、１７室内熱交換器温度センサ（室内側管温センサ）、１８室内ファン、１９室内ファンモータ、２０霜取り検出温度センサ、２１外気温度センサ、２２圧縮機吐出温度センサ、２３室外ファン、２４室外ファンモータ、２５絞り装置（二段凝縮回路用）、２６温水熱交換器、２７床暖房パネル、２８温水循環用ポンプ、２９温水タンク、３０中継装置、３１、３１ａ温水配管接続端子部（送り側）、３１ｂ温水配管接続端子部（戻り水側）、３２、３２ａ温水配管用延長銅配管（送り側）、３２ｂ温水配管延長銅配管（戻り側）、３３、３３ａ温水配管の延長配管(送り側)、３３ｂ温水配管の延長配管（戻り側）、３４、３４ａ、３４ｂ、３４ｃ、３４ｄ延長配管接続端子部、３５床暖房機の温水制御装置、３５ｂ温水制御装置部の配線接続端子部、３６温水送り水温度センサ、３７温水戻り水温度センサ、３８水位センサー、３９温水熱交換器の冷媒温度検知センサ、４０床暖房パネル温度センサ、４１床暖房パネル構成（木材フローリングに温水配管装着）、４２床暖房パネルの断熱材、４３床暖房パネルの断熱材（床暖房パネルの下部に敷くのみのタイプ）、４４床暖房パネルのカーペットタイプ、４５一般のカーペット、５０ドレン水配管、５１室内機取付板、５２基礎、５３室外機グリル、５４室内機グリル、５７電源線、５８カバー、６１、６２入力装置、７０壁面、７１コンセント本体、７２ピン、７３流路、７４樹脂チューブ、７５接続端子配管固定材、７６銅配管。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner capable of using both floor heating and a heating operation by an air conditioner.
[0002]
[Prior art]
FIG. 11 is an example of a conventional configuration, and is a refrigerant circuit / water circuit diagram disclosed in Japanese Unexamined Patent Publication No. 2000-55445. As shown in FIG. 11, the conventional air conditioner includes a compressor 1, a hot water heat exchanger 26 as a condenser, a refrigerant circuit in which an electric expansion valve 5b and an evaporator are connected in an annular shape, and this hot water heat exchange. And a floor heating panel in which hot water is circulated by a circulation pump 28 via a vessel 26. This air conditioner heats hot water with a hot water heat exchanger using a heat pump, and the heated hot water circulates through the floor heating panel using a circulation pump via the hot water heat exchanger. In addition to the hot water heat exchanger, the air conditioner includes an indoor heat exchanger 6 in the indoor unit as the condenser, and performs heating operation by air conditioning of the indoor unit as an auxiliary to floor heating. The temperature of the room is adjusted by the input device 61 provided in the indoor unit control device 13a and the input device 62 provided in the floor heating control device 35a, but the amount of air blown out by the indoor fan 18 when the heating operation is started by air conditioning. After the air volume is set to a predetermined large air volume, the air volume is set depending on whether or not the floor heating operation is being performed depending on the temperature of the blown air, and the horizontal flap 63 is controlled to reduce the draft feeling and the blowing sound. The floor heating panel of the floor heating system using the refrigerant circuit configured in this way is to lay the floor heating panel under the flooring of the room, or the floor heating under the flooring in advance with the laying member, Flooring the entire room. If only hot water type floor heating is taken up, a simple floor heating device using a gas combustion heat source has been proposed.
[0003]
[Problems to be solved by the invention]
The floor warming panel used in the conventional air conditioner disclosed in Japanese Patent Laid-Open No. 2000-55445 performs flooring on the entire room, and it is necessary to process the floor heating panel according to the floor surface. The work involved a large amount of work. In addition, the floor heating panel must be installed by a worker capable of carpentry work, and the air conditioner must be installed by a worker capable of electrical work. Therefore, the construction cost was also expensive.
[0004]
In addition to the refrigerant circuit piping connection from the outdoor unit to the indoor unit, it is necessary to form two circuits, the water circuit piping connection from the floor heating device to the floor heating panel, so there are more work points for the extension piping to be connected. The workability may be greatly deteriorated. In addition, even if floor heating and an air conditioner were combined to obtain comfort, ventilation control that reinforces the drawbacks of floor heating, such as when heating was started, was the main component.
[0005]
In the case of the gas combustion type, hot water at high temperature becomes possible, and it becomes possible to lay a small and simple floor heating panel like the back cover, but the water circuit that passes the floor heating panel of the back cover type is usually cross-linked polyethylene In this cross-linked polyethylene pipe, when connecting an outdoor unit from the floor heating panel to form a water circuit, the piping work on the outside of the room can be done with the conventional air conditioner. Unlike the piping work of, workability sometimes deteriorated. In addition, the fuel cost of gas combustion is high, and since fire is used, there are large facilities such as safety measures and disposal of combustion air, and a large outdoor unit is required next to it. Furthermore, there was a possibility that hot water due to combustion could become hot, and measures such as low-frequency burns were necessary.
[0006]
In the installation work of the air conditioner equipped with the floor heating heat dissipation panel, in addition to the piping hole provided in the wall for passing the piping from the room to the outside for forming the refrigerant circuit, the room for forming the water circuit There is a problem that workability deteriorates such as a piping hole for passing the piping from the outside to the outdoor. In particular, in the case of a concrete wall such as a housing complex, a lot of time is required for the work of drilling the piping holes, so the workability is greatly deteriorated.
[0007]
As a circuit configuration of an air conditioner including a floor heating panel, it is necessary to configure two circuits, a refrigerant circuit and a water circuit. The two circuits need only have the same installation regulations, but the installation regulations are generally different, such as a restriction on the length of a pipe that can be installed, a height difference restriction, and a restriction on an outdoor unit installation space. In addition, the installation of the floor heating panel of the water circuit adds restrictions on the installation area of the installation room. Therefore, in order to perform reliable installation work, there is a problem that it is necessary to check the installation area of the room, the piping length, etc. at the site where the installation contractor installs.
[0008]
Furthermore, since the air conditioning apparatus provided with the hot water circuit requires maintenance work of the water circuit (addition or replacement work of water or blanket), the installation place of the outdoor unit and the floor heating device is required. For this reason, there is a need to lengthen the extension pipe of the refrigerant circuit more than before, and there is a problem that the performance deterioration due to pressure loss in the extension pipe increases.
[0009]
The present invention has been made to solve the above problems, and provides an easy-to-handle air-conditioning apparatus that is energy-saving, safe and reliable, and has air conditioning and floor heating functions. In addition, the present invention can be handled with peace of mind because a contractor or the like who installs a general household air conditioner can easily and reliably install a floor heating device including a water circuit at any place and there is no problem in sales or installation. In addition, the present invention provides an easy-to-use air conditioner that can be equipped with a floor heating function with or without an air conditioner. Furthermore, the present invention provides an apparatus and method that can be freely installed and sold with a high degree of freedom. In addition, the present invention provides a simple and inexpensive apparatus and method for installation and maintenance work with no restrictions.
[0010]
[Means for Solving the Problems]
  An air conditioner according to a first aspect of the present invention includes an indoor unit that sucks indoor air by an indoor fan that is arranged indoors and blows out air-conditioned air, an outdoor unit that is arranged outdoor and has an outdoor fan, A refrigerant circuit that circulates a refrigerant by connecting a compressor arranged in the machine, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger arranged in the indoor unit through a refrigerant pipe; A hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and brine or water for floor heating and a hot water pipe for circulating the brine or water are provided, and a connection port connected to the refrigerant pipe is provided outside the room. The floor heater is connected to the floor heater by a hot water pipe via a relay device having a flow path cut-off mechanism, and is mounted on the floor surface so as to be detachable by a relay device that is placed on the indoor floor surface and performs floor heating. Floor warming that can change the positionBunchAndThe stop valve that opens and closes the flow path of the flow path blocking mechanism is provided on the indoor side, and when the hot water pipe connected to the floor heating panel is removed, the flow path of the floor heating panel is closed by the stop valveIs.
[0011]
  The air conditioner according to claim 2 of the present invention is, RoomA control device that controls the temperature of indoor air detected by the internal temperature sensor and the temperature of brine or water circulating in the floor heating panel by changing the rotational speed of the compressor.PlaceIt is provided.
[0012]
In the air conditioner according to claim 3 of the present invention, the hot water pipe is fixed to a relay device having a flow path blocking mechanism for relaying from the outdoor floor heater connected to the refrigerant circuit to the room, and from this relay device to the floor heating The panel is placed on an arbitrary floor surface with flexible piping.
[0013]
In an air conditioner according to a fourth aspect of the present invention, the floor heating panel is provided with a heat insulating sheet between the floor surface.
[0014]
In the air conditioner according to claim 5 of the present invention, the relay device for relaying from the outdoor floor heater to the room is located at a position where the hot water pipe penetrates from the outside to the room, or at the position where the hot water pipe is introduced into the room together with the refrigerant pipe. Is provided.
[0015]
  The air conditioner according to claim 6 of the present invention uses a copper pipe for the hot water pipe connecting the relay device for relaying from the outdoor floor heater to the room.This hot water pipe made of copper pipe is connected by flaring like the refrigerant circuit pipe.It is a thing.
[0016]
In the air conditioner according to claim 7 of the present invention, the same piping is used for the piping hole provided in the wall for passing the refrigerant pipe from the room to the outdoor and the piping hole provided in the wall for passing the hot water pipe from the room to the outdoor. Use holes.
[0017]
  The air conditioner according to claim 8 of the present invention is a hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and the brine or water for floor heating.Four-way valve for switching between cooling and heatingAnd connected between indoor heat exchangersAnd a throttle device connected between the hot water heat exchanger and the indoor heat exchanger, and an electromagnetic on-off valve connected in parallel with the throttle device, connected between the hot water heat exchanger and the indoor heat exchanger. PreparedIs.
[0018]
The air conditioner according to claim 9 of the present invention is such that the heating capacity of the floor heater is equal to or less than the heating capacity of the indoor unit.
[0019]
In the air conditioner according to claim 10 of the present invention, when the heating operation is performed by changing the rotation speed of the compressor, it can be operated by one remote control device capable of setting the room temperature.
[0020]
  An air conditioner installation method according to an eleventh aspect of the present invention includes an indoor unit that is disposed indoors and sucks indoor air by an indoor fan and jets air-conditioned air, an outdoor unit that is disposed outdoor and has an outdoor fan, A refrigerant circuit that circulates a refrigerant by connecting a compressor arranged in the machine, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger arranged in the indoor unit through a refrigerant pipe; A floor heater having a hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and brine or water for floor heating, and a hot water pipe for circulating the brine or water, and the floor heater Floor heaters that are connected by hot water piping via a relay device and are mounted on the floor surface of the room and removable by a relay device that performs floor heating.BunchNell,A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;After attaching an indoor unit, an outdoor unit, and a refrigerant circuit in the outdoors and indoors, a hot water piping and a relay apparatus are attached outdoors and indoors.
[0021]
  According to a twelfth aspect of the present invention, an air conditioner installation method includes an indoor heat exchanger, an indoor fan, an indoor unit control device, an indoor unit having an indoor temperature sensor, a compressor, an outdoor heat exchanger, an outdoor fan, a decompressor, An outdoor unit having a four-way valve for switching between cooling and heating and an outdoor unit control device, a refrigerant circuit that circulates refrigerant in the indoor unit and the outdoor unit to perform an air conditioning function such as cooling and heating operation, and floor heating in the refrigerant circuit A floor heater for performing floor heating operation, comprising a water circuit such as a circulation pump, a water tank, etc.Connected to a floor heater and a hot water pipe that circulates brine or water through a relay device, and is mounted on the floor surface of the room and detachable by a relay device that performs floor heating, and a relay device A flow path blocking mechanism provided on the indoor side, provided with a stop valve that opens and closes the flow path and closes the flow path of the floor heating panel when the hot water pipe connected to the floor heating panel is removed.After installing the outdoor unit at the installation site, install the floor heater into the outdoor unitAfter installing the refrigerant piping and circulating the refrigerant, install the hot water pipingIs.
[0023]
  Claims of the invention13The indoor air conditioner installation method includes an indoor unit that sucks indoor air and blows out air-conditioned air, an outdoor unit that is disposed outside and has an outdoor fan, a compressor that is disposed in the outdoor unit, and cooling and heating Air-conditioning system that has a four-way valve for switching, an outdoor heat exchanger, a decompressor, and a refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger arranged in the indoor unit with a refrigerant pipe to circulate the refrigerant independently And a hot water heat exchanger, circulation pump, water tank, which exchange heat with brine or water and refrigerant in the refrigerant circuit that can be connected to the refrigerant circuit in the air conditioner.Relay device,And floor warmingBunchA water circuit device for connecting floors with hot water piping and performing a floor heating operation function;A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;If the air conditioner and the water circuit device are used in combination, the floor warmer is placed indoors and then laid down after the air conditioner alone is installed and operated.BunchThe specifications of the channel can be selected.
[0024]
  Claims of the invention14The indoor air conditioner installation method of the present invention includes an indoor unit that sucks indoor air and blows out air-conditioned air, an outdoor unit that has an outdoor fan that is disposed outdoors, a compressor that is disposed in the outdoor unit, cooling and heating Air-conditioning system that has a four-way valve for switching, an outdoor heat exchanger, a decompressor, and a refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger arranged in the indoor unit with a refrigerant pipe to circulate the refrigerant independently The floor is connected with a hot water heat exchanger, circulation pump, water tank, and relay device for exchanging heat with the floor heating brine or water and refrigerant in the refrigerant circuit, which can be connected to the refrigerant circuit in the air conditioner. A water circuit device that performs a heating operation function;A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;An air conditioner and a water circuit device are used in combination.TheAfter installation and operation of the air conditioner, the floor warmer connected to the relay device with hot water piping and placed indoors and laid behindBunchThe specifications of the channel can be selected.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Hereinafter, an embodiment of the air conditioner of the present invention will be described in detail with reference to the circuit diagram of FIG. 1, the structural diagram of FIG. 2, and the configuration diagram of FIG. FIG. 1 is a schematic configuration diagram of a refrigerant circuit / water circuit in an example of the air conditioner of the present invention. In the figure, 1 is a compressor provided in the outdoor unit 102, 2 is a four-way valve for switching between a cooling circuit and a heating circuit with one end connected to the discharge side of the compressor 1, and 3 is the four-way valve 2 An outdoor heat exchanger having one end connected to the other end, 4 is a capillary tube as a throttling device having one end connected to the other end of the outdoor heat exchanger 3, and 5 is an electric expansion valve as a decompression device. . Note that a fixed throttle device for the capillary tube 4 is provided to reliably adjust the pressure reducing valve 5. 7 is an accumulator capable of storing the refrigerant, 8a is a refrigerant pipe connection terminal portion provided with a stop valve in the outdoor unit 102, and 9a, 9b and 9c are mufflers, which are provided larger than the pipe diameter to reduce refrigerant noise. , 20 is a defrosting detection temperature sensor, 21 is an outside air temperature sensor, 22 is a compressor discharge temperature sensor, and 23 is an outdoor fan driven by an outdoor fan motor. Further, 6 provided in the indoor unit 101 is an indoor heat exchanger connected to the other end of the electric expansion valve 5, 8c and 8e provided with a stop valve are provided in the indoor unit connected to the extension copper pipes 12a and 12b. A pipe connection terminal portion of the refrigerant pipe, 16 is an indoor temperature sensor, 17 is an indoor heat exchanger temperature sensor which is a pipe temperature sensor, and 18 is an indoor fan driven by an indoor fan motor 19. The outdoor unit 102 is provided with the outdoor control device 14, and the indoor unit 101 is provided with an indoor control device 35 a, which receives the detection data of each sensor and controls each device and valve.
[0026]
103 is a floor heater, and heat is generated between the refrigerant pipe and the hot water pipe, one end of which is connected to the refrigerant pipe connection terminal portion 8a of the outdoor unit 102 and the other end is connected to the refrigerant pipe connection terminal portion 8c of the indoor unit. A hot water heat exchanger 26 for exchanging is incorporated. A check valve 10, an electromagnetic on-off valve 11, and a two-stage condensing circuit throttle device 25 are connected to the refrigerant pipe. Also connected to the hot water pipe are a hot water circulation pump 28, a hot water tank 29, a terminal 8b provided with a stop valve in the floor heating device as a connection terminal of the refrigerant pipe, a hot water pipe connection terminal, and hot water pipe connection terminals 31a and 31b. ing. The water level sensor 38 monitors the water level in the hot water tank, and the hot water feed water temperature sensor 36, the hot water return water temperature sensor 37, and the refrigerant temperature detection sensor 39 of the hot water heat exchanger detect the respective temperatures and send the data to the hot water control device. To turn the pump on and off and open and close the valve. 27 is a floor heating panel, and between the floor heater 103 and the floor heater 103 via a relay device 30, a feed side extension copper pipe 32a and a return side extension copper pipe 32b arranged outside the room which is a hot water pipe, and a feed side arranged in the room The extension pipe 33a and the return side extension pipe 33b are connected. The indoor side hot water piping is provided with connection terminals 34a, 34b, 34c, 34d, and the floor heating panel 27 is provided with a temperature sensor 40. Reference numeral 13a denotes an indoor control device that controls the indoor fan motor 19 built in the indoor unit and also stores information such as a temperature setting value that is a target temperature of the indoor air of the indoor unit set by the remote controller 13a. The input device 13c exchanges signals with the outdoor control device 14 and the hot water control device 35a through the wiring connection terminal portion 13b connected to the connection wiring 15 together with the data and processing results of the sensors 16 and 17 provided in the indoor unit. In conjunction with the control device, it operates and controls indoor units, outdoor units, floor heaters and valves.
[0027]
FIG. 2 is a structural explanatory view for explaining the structure of an air conditioner with floor heating, which explains the contents of the circuit of FIG. The outdoor unit 102 is mounted on a foundation disposed outside, and a floor heater 103 is fastened and fixed on the outdoor unit 102 by a fixing bracket or the like. Refrigerant piping connection terminals 8a and 8d are provided on the side surface of the outdoor unit, and the refrigerant piping connected to these terminals extends from the upper floor heating device, for example, the connection terminal 8b provided on the side surface of the floor heating machine 103. The copper pipe 12 is connected to the indoor unit 101, and the refrigerant is circulated through the indoor heat exchanger 6 inside the indoor unit 101. The extension copper pipe 12 is arranged through a hole through which the supply side and the return side pass through the wall into the room. At the same time, the electric wiring 15 and the drain water pipe 50 pass through the same hole and pass from the room to the outside. It is a structure to pass through. The electrical wiring connection portions 14b and 35b are also provided on the same side surfaces of the outdoor unit 102 and the floor heater 103, respectively, and are covered with the pipe connection terminals by the respective covers 58. From the floor heater 103, a hot water pipe 32 made of a copper pipe is fixedly connected to the relay device 30. From the relay device 30, a hot water pipe 33 is connected to the floor heating panel 27 by a flexible polyethylene pipe. 1, the compressor 1, the four-way valve 2, the outdoor heat exchanger 3 and the electric expansion valve 5 that are connected to the refrigerant pipe and circulate the refrigerant are fixed, and the outdoor fan rotates from the grill 53 as shown in FIG. Air is blowing out. Similarly, the indoor heat exchanger 6 and the indoor fan 18 are disposed inside the indoor unit 101 and suck air from the indoor unit grill 54. This indoor unit is fixed to the wall surface of the room via an indoor unit mounting plate 51 as shown in FIG.
[0028]
FIG. 3 is a block diagram for explaining the interior of the floor heater with respect to the same structure as in FIGS. 1 and 2. Inside the floor heater is a hot water circulation pump 28 and a hot water heat exchanger 26 with a double pipe structure. Is fixed. Description of tanks and valve devices is omitted. Refrigerant pipe 12b and hot water pipes 33a and 33b are respectively connected to both ends of the double pipe heat exchanger so that the refrigerant and hot water are opposed to each other, and the heat of the refrigerant pipe is transferred to the hot water pipe. Thermal insulation is provided around the individual heat exchangers. In addition, the piping connection with the outdoor unit 102 of each piping, the floor heater 103, and the indoor unit 101 is the same as that of FIG. 1, FIG. 2, as shown in FIG. However, the hot water copper pipe 32 and the relay device 30 are not provided. Reference numeral 56 denotes a fixing bracket for fixing the floor heater 103 to the outdoor unit 102. When the floor heater is mounted on the outdoor unit from above, a spring disposed at the lower part of the floor heater in a hole provided on the upper surface of the outdoor unit. A board is inserted and the position is fixed and it cannot move.
[0029]
As shown in FIGS. 1, 2, and 3, the floor heater 103 of the floor heating apparatus is provided with a parallel circuit having a check valve in parallel with the hot water heat exchanger 26. The air conditioner of the indoor unit 6 can be selected between cooling and heating modes by switching the four-way valve 2, but during heating, the check valve 10 does not flow to the parallel circuit but passes the hot water heat exchanger. Can flow through the circuit provided with the check valve as it is. In this way, the check valve 10 provided in the floor heater 103 has one end connected to the other end of the indoor heat exchanger 6 so as to flow while bypassing the refrigerant during the cooling circuit operation, and further in series with the hot water heat exchanger 26. The expansion device 25 connected to is connected at one end to the other end of the indoor heat exchanger 6 in order to form a two-stage condensing circuit that increases the pressure in the circuit for heating operation. An electromagnetic on-off valve 11 provided in parallel with the expansion device has one end connected to the other end of the indoor heat exchanger 5 in order to switch between a normal one-stage condensing circuit and a two-stage condensing circuit in the heating circuit. The water temperature can be adjusted by switching the condensing circuit with the electromagnetic on-off valve 11. This hot water heat exchanger 26 is used by automatically switching depending on the refrigerant flow direction and a parallel circuit having the check valve 25 and the solenoid valve 11 connected thereto and having a check valve. Naturally, various operations such as using the indoor unit 6 alone for heating are performed in a mode set by a remote controller as desired.
[0030]
A water supply pump 28 provided in the floor heater 103 is a pump that circulates water or brine put in the hot water pipe, and circulates hot water at a substantially constant rotation. In hot water circulation, flow rate accuracy is not required and fine flow rate control is not performed. Therefore, a propeller type pump and an induction motor for driving the pump, which are quiet at the time of start-up and operation, are selected. A warm water tank 29 is provided in series with the feed water pump 28 and the feed water pump 28 is operated continuously. By circulating the warm water stored in the warm water tank 29, the compressor 1 is stopped and the floor heating is performed even when there is no refrigerant circulation. The machine 103 can be operated to perform floor heating. Further, the outdoor unit 102 has an accumulator 7 having one end connected via the four-way valve 2 and the other end connected to the suction side of the compressor 1, which is generated due to a difference in refrigerant amount during cooling and heating. Although an excessive amount of refrigerant is stored, this accumulator can be removed. Also, a capillary tube 4 is provided between the outdoor heat exchanger 3 and the electric expansion valve 5 to make the adjustment of the expansion valve 5 more reliable. The refrigerant circulates in the refrigerant pipe forming the refrigerant circuit by the pressure of the compressor 1, and this refrigerant may be a natural refrigerant or an HFC refrigerant, for example, R410A is used. Furthermore, the pipe connection terminal portion for connecting the refrigerant circuit of the outdoor unit 102 to the floor heater is 8a, and further provided with a pipe connection terminal portion for connecting an extension pipe connecting the indoor unit 102 side, The gas refrigerant side is 8b, 8c, and the liquid refrigerant side is 8d, 8e. Note that there is a place where a stop valve such as an open / close valve is provided at the connection terminal of the refrigerant circuit, in order to open the valve by pre-filling the refrigerant in the outdoor unit and connecting the piping at the installation site.
[0031]
During the cooling operation in the above-described refrigerant circuit, the high-temperature and high-pressure refrigerant discharged from the compressor 1 is condensed by the outdoor heat exchanger 3 from the four-way valve 2, expanded by the expansion valve 5, and evaporated by the indoor heat exchanger 6. It passes through the stop valve 10 and is returned from the four-way valve via the accumulator 7 to the compressor. When the indoor heat exchanger evaporates, heat is taken from indoor air flowing through the heat exchanger to cool the room. On the other hand, when heating operation is performed by switching the four-way valve, the high-temperature and high-pressure refrigerant that has passed through the four-way valve from the compressor is blocked by the check valve 10 and partially condensed by the hot water heat exchanger 26 and further the indoor heat exchanger 6. Then, the heat is transferred to the air to heat the room air, evaporates in the outdoor heat exchanger 3, and is returned from the four-way valve 2 and accumulator 7 to the compressor. An outdoor fan 23 and its motor 24 are provided in the vicinity of the outdoor heat exchanger 3 to exchange heat between the outdoor air and the refrigerant pipe, and an indoor fan 18 and its motor 19 are provided in the vicinity of the indoor heat exchanger 6 to exchange the indoor air. Heat exchange between. Also, the refrigerant circuit detects the temperature of the hot water heat exchanger temperature sensor 39, the indoor heat exchanger temperature sensor 17, the outdoor heat exchanger temperature sensor 20, and the refrigerant temperature discharged from the compressor for grasping the operation state of the refrigerant circuit. A discharge temperature sensor 22 is provided, and a room temperature sensor 16 for detecting the room temperature necessary for operating the refrigerant circuit is provided as if the room air temperature is controlled to a set target value.
[0032]
Further, the floor heating device comprising the floor heater 103 and the floor heating panel 27 includes a floor heating panel 27 having one end connected to one end of a hot water pipe of a hot water heat exchanger 26 that performs floor heating, and the other end of the floor heating panel 27. One end is connected, a tank 29 for absorbing expansion and contraction of brine, and one end is connected to the other end of the tank 29, and the other end is connected to the other end of the hot water heat exchanger 26. A more water circuit is formed. Further, in the water circuit between the floor heating panel 27 and the floor heater, a terminal with a stock valve is provided for shutting off water when the hot water pipe 33 is removed so as to pass the hot water pipe from the room to the outside and relay the hot water pipe. A certain relay device 30 is provided on an indoor wall surface or floor surface. The connection piping part for connecting the extension piping which connects this relay apparatus 30 and the floor heater 103 is connection terminal 31a, 31b, and the extension piping 32a, 32b is a specification connected by copper piping. Moreover, the connection part for connecting the relay apparatus 30 and the floor heating panel 27 is connection terminal 34a, 34b, 34c, 34d, and when removing piping by providing a stop valve in this connection terminal with a floor heating panel It can be taken as a countermeasure against the flow of water from the panel. Furthermore, since the pipe | tube made from crosslinked polyethylene is used here, the movement of the floor heating panel 27 is enabled, and the panel position can be changed freely.
[0033]
The control unit of the air conditioner controls the input device 13c from the wireless remote controller 13d and the like, the indoor control device 13a for controlling the indoor fan 18 and the flap and sending a control signal to other units, the circulation pump 28 and the electromagnetic The hot water control device 35a that controls the valve 11 and sends a control signal to another unit, and further controls the compressor 1, the four-way valve 2, the electric expansion valve 5 and the outdoor fan 23, and the control signal to the other unit It consists of the outdoor control apparatus 14 which sends.
[0034]
FIG. 4 shows a floor heating panel configuration diagram for explaining the configuration of the floor heating panel. Fig. 4a is an explanatory diagram of a flooring type in which a heat insulating material 42 is attached to a floor heating panel, Fig. 4b is an explanatory diagram of a carpet type in which an ordinary carpet is laid on the floor warming panel, and Fig. 4c is a floor heating panel on the floor. It is explanatory drawing of the post-laying type to put. 41 is a floor heating panel configuration in which hot water piping is mounted on the wood flooring, 42 is a heat insulating material for the floor heating panel, and 43 is a floor heating panel used for the carpet type with a heat insulating material sheet between the floor and the floor heating panel. . Of the floor heating panels described in these figures, a is a panel made of wood flooring equipped with hot water piping made of cross-linked polyethylene for flowing hot water under the wood, and heat is circulated through the hot water piping to radiate heat to the floor surface. Warm the floor and warm the room. In addition, a heat insulating material is provided on the lower surface to prevent heat from radiating to other than the floor surface and to reinforce the strength to prevent damage to the floor surface of the room and deformation due to heat. There is also a carpet type b that can be attached later for a Japanese-style room. In this case, the carpet is provided with a hot water pipe, and in addition, a general carpet can be provided on the panel. Of course, insulation may be laid under the panel. “c” is obtained by attaching a heat insulating material and a flooring type heat dissipating panel on the floor, and can be attached later at any time, that is, when the air conditioner is not attached. Moreover, it is possible to move anywhere by simply attaching / detaching the flexible hot water pipe 33 to / from the relay device 30. These floor heating panels can be placed on the floor or tatami of the room, and adjusted to the floor of the room. Work such as cutting and adding panels is not required. For this reason, for example, 2 tatami mats, 2.5 tatami mats, 3 tatami mats, 4 tatami mats, 4.5 tatami mats, 6 tatami mats, 8 tatami mats, 10 tatami mats, etc. Yes. In order to facilitate the manufacture and inventory management of floor heating panels and to reduce the cost of floor heating panels, for example, when setting a panel for 6 tatami mats, three 2 tatami panels can be used in combination. A combination of two tatami panels may be used. In this way, when used in combination, work for connecting the hot water pipes may be added and connected in advance at the factory, but since it is a simple work, it may be connected locally.
[0035]
Next, the installation method of a hot water circuit etc. is demonstrated about the floor heating apparatus comprised by the floor heating panel etc. in FIG.5, FIG.7, FIG.8, FIG. FIG. 5 is an indoor device mounting layout diagram, FIG. 7 is a relay device mounting explanatory diagram, FIG. 8 is a relay device plug external view, and FIG. 9 is a mounting explanatory diagram for mounting a floor heater to an outdoor unit. The work on the indoor side will be described. 70 is a wall surface that separates the room from the outside, 71 is an outlet body having a flow path 73 formed by a resin tube 74, 72 is a pin for a stop valve, and 76 is fixed to the body 71 by a connection terminal pipe fixing material 75. Copper piping. Reference numeral 80 denotes a plug that is detachably fitted to the outlet body 71, and 81 is a stopper mechanism that opens and closes with a spring 82 for a stop valve. When the plug 80 is removed from the outlet body, the spring 82 is opened. With this force, the stopper mechanism closes the flow path of the plug and the hot water does not flow out from the crosslinked polyethylene pipe, which is a hot water pipe connected to the indoor floor warm panel 27. On the other hand, the channel 73 is secured while the plug is inserted into the outlet main body 71 and engaged.
[0036]
As shown in FIGS. 5, 7 and 8, the floor heating panel 27 incorporates hot water pipes 33a and 33b made of cross-linked polyethylene for passing hot water. It is covered and led to the wall surface 70 in the room, and the relay device 30 for the hot water circuit is provided on the wall surface. The relay device 30 can easily attach and remove the hot water circuit of the floor heating panel 27, and further remove it. In this case, the stopper mechanism 81 prevents the brine or water in the hot water circuit from leaking. As shown in FIG. 9, the outdoor unit is first installed on the outdoor foundation 52 outside. The floor heater 103 is mounted on the outdoor unit 102. Thereafter, the pipes and wirings of the outdoor unit 102 and the floor heater 103 are connected at each terminal in advance at the factory. Also, as soon as the position of the indoor unit is determined, drilling for piping is performed.
[0037]
Next, a method for installing a refrigerant circuit for performing cooling, heating operation, and the like, which are basic functions of the air conditioner, will be described. The indoor unit main body is fixed to the mounting plate 51 after the indoor mounting plate 51 described with reference to FIG. At this time, a hole 57 through which the refrigerant pipe 12 and the electric wiring 15 and the pipe 50 for guiding condensed water to the outside through the wall surface 70 is provided in the wall surface on the back side of the indoor unit, and each pipe, wiring, To the outside. Next, the outdoor unit 102 is installed outdoors. At this time, the power supply line 57 may be routed through the piping hole as electrical wiring, or may be wired to the outdoor unit by another route. Furthermore, the flared ends of the extension copper pipes 12a and 12b are connected to stop valves 8a and 8b serving as the outlet and inlet of the refrigerant of the outdoor unit and floor heater, respectively, by screw tightening or the like. Further, the other pipe is connected to indoor refrigerant pipe terminals 8c and 8e led from the room. Furthermore, the electric wire 15 which leads the power supply and signal transmission / reception of the indoor unit 101 and the outdoor unit 102 led from the room is connected to the electrical terminal portions 13b and 35b to connect the floor heating device. Here, the outdoor unit and the floor heating device are connected in advance with piping and electrical wiring. Next, since it is necessary to install the hot water circuit of the outdoor unit 102 and the floor heating apparatus 103, the installation location of the outdoor unit is selected in consideration of the work space for the injection, addition, and replacement of brine or water. . Next, the air existing in the refrigerant pipe is exhausted by a vacuum pump from a refrigerant port for evacuation provided in the gas side stop valve 8 a of the outdoor unit 102, and then the refrigerant sealed in the outdoor unit 102 in advance. The refrigerant on-off valve of the stop valve is fully opened to form indoor and outdoor refrigerant circuits.
[0038]
Thereafter, the refrigerant leakage is confirmed, the cooling or heating operation is confirmed, and the operation of the air conditioner formed by the refrigerant circuit is completed. The above is the same as the installation work of the air conditioner formed in the conventional refrigeration cycle. Next, it takes to install the floor heater. The floor heating panel 27 having a rear-laying shape is laid in the room, and this floor heating panel includes a connection portion 34 between an inlet 34b and an outlet 34d of a hot water pipe made of crosslinked polyethylene. Furthermore, a pipe hole is provided in the wall of the room for passing the hot water pipe outside. Moreover, the relay apparatus 30 for connecting the said floor heating panel is installed in this piping hole. Next, the relay device and the hot water connection part of the floor heating panel are connected to the relay device using the hot water pipe 33 for extension as necessary. As shown in FIG. 7, the hole in the wall surface of the relay device 30 has a shape in which the main body 71 penetrates from the inside of the room to the outside of the room. A shape that can be opened is also acceptable. In that case, the copper pipe 76 is easily bent, so it is preferable to bend and use it.
[0039]
Next, the installation work of the hot water circuit on the outdoor side will be described. As with the piping work in the refrigerant circuit, the copper pipe for the extension of the hot water circuit is screwed to the flared tip at the two pipe connection terminal portions 31 that are the outlet and inlet of the hot water circuit provided in the floor heating device. Securely connect by tightening. Further, the other side of the pipe is connected to a pipe connection part 77 led to the outdoor side from the relay device to form a hot water circuit.
[0040]
Next, a brine or water filling operation in the hot water circuit will be described. The floor heater 103 can be opened with an upper lid, and the lid is opened. First, a cap provided on the upper portion of the hot water tank 29 fixed inside is opened to inject brine or water. Next, the pump 28 is independently operated by a pump independent operation switch provided in the hot water control device 35a. Then, while the brine or water in the hot water tank 29 circulates, the air contained in the hot water circuit is expelled out of the room. Moreover, since the water level decreases in the brine or water level in the hot water tank 29, the brine or water is injected again. Therefore, when all the air in the hot water circuit is driven out of the room, the water surface in the hot water tank is stabilized, and the operation is completed by injecting brine or water to a preset water injection line. After that, check the looseness of each part and close the lid, then the installation is completed and it can be used for necessary operation tests.
[0041]
Here, a maintenance method of the hot water circuit will be described. Brine or water in the hot water circuit is gradually reduced due to a gap communicating with the outside air in the hot water tank 29, for example, an overflow circuit or a cap that drains water when the water supply tank 29 is excessively poured. When the water in the hot water tank 29 decreases, air is sucked into the circulation pump 28 and the life of the pump is reduced. Therefore, a float switch 38 or the like is provided in the hot water tank 29 to detect the water level, and when the water level falls below a certain level, the circulation pump 28 is stopped. Accordingly, brine or water is replenished by the user or a specialized worker every certain period or when operation is not possible. Further, particularly when brine is used, the brine oxidant or the like deteriorates, so that the brine replacement operation is performed every several years. Since the floor heating device requires the maintenance work as described above, the installation location of the outdoor unit and the hot water device is selected in consideration of the workability of the maintenance. Therefore, since the installation place is limited as compared with the conventional air conditioner, the length of the extension pipe connecting the refrigerant pipe with the indoor unit tends to be longer than that of the conventional example of the indoor unit alone. In this example, R410A, which is an HFC refrigerant, is used as the refrigerant, and since the gas density is high with a high-pressure refrigerant, the pressure loss of the refrigerant in the extension pipe is small. Is possible. However, it goes without saying that other types of natural refrigerants such as HFC refrigerant and CO 2 can be used. The operation of the air conditioner having the above configuration will be described below.
[0042]
When the indoor control device receives condition signals such as the operation details (heating, cooling, floor heating, heating + floor heating, dehumidification, etc.), room temperature and set temperature of the floor temperature from the remote controller, the floor heating control device from the indoor control device A control signal is sent to. After the control signal is replaced according to the operation content in the floor heating control device, a signal is sent from the floor heating control device to the outdoor control device according to the operation content, and the operation is started.
[0043]
Here, since it is an air conditioner with floor heating, the operation of heating + floor heating will be described. The four-way valve is fixed at the position of the heating circuit (the solid line display position in FIG. 1), and the compressor 1 operates. Since the refrigerant discharged from the compressor 1 cannot pass through the refrigerant pipe in which the check valve 10 is disposed, the refrigerant is condensed and radiated by the hot water heat exchanger 26, and when the electromagnetic valve 11 is closed, the expansion device 25. After being reduced in pressure through the indoor heat exchanger 6, the indoor heat exchanger 6 condenses at a condensation temperature lower than that of the hot water heat exchanger 26 and dissipates heat. Further, when the electromagnetic valve 11 is open, the heat is condensed and dissipated through the bypass pipe in which the electromagnetic valve 11 is disposed at substantially the same temperature as the hot water heat exchanger 26. The refrigerant discharged from the indoor heat exchanger 6 expands by the electric expansion valve 5, evaporates by the outdoor heat exchanger 3, absorbs heat from the outside air, and returns to the suction side of the compressor 1 through the accumulator 7. The opening / closing operation of this solenoid valve is controlled by the floor heating control device so that the solenoid valve is closed only when the difference between the floor temperature and the set temperature of the floor temperature is large, and the solenoid valve is opened otherwise. It is supposed to be done.
[0044]
On the other hand, when the circulation pump 28 is operated, brine is sent from the water tank 29 to the hot water heat exchanger 26, heated by the condensation heat of the refrigerant in the hot water heat exchanger 26, and then sent to the floor heating mat 27. . The heating brine sent to the floor heating mat 27 heats the floor heating mat 27 to radiate heat indoors, and then returns to the water tank 29 and repeats circulation.
[0045]
Next, a method for controlling the operating frequency of the compressor 1 will be briefly described. Based on the difference between the current room temperature and the set temperature of the room temperature input by the remote controller, the operation frequency of the compressor is calculated by the indoor control device 13, and the calculation result is transmitted to the hot water control device. Further, the hot water control device calculates a set temperature difference between the return water temperature sensor 29 of the water circuit and the floor temperature. Further, the floor heating control device compares the difference between the room temperature and the set temperature with the difference between the floor temperature and the set floor temperature, and transmits the larger temperature difference to the outdoor control device. The outdoor control device controls the rotation speed of the compressor 1 according to the temperature difference. That is, the larger the difference from the set temperature, the higher the capacity is increased and the operation of the compressor 1 is increased. When the temperature is higher than the set temperature of the room temperature and the floor temperature, control is performed so that the compressor 1 is stopped. When only the room temperature reaches the set temperature, the indoor control device rotates the indoor fan speed slightly. When the operation is performed with a reduced heating capacity and the heating capacity is reduced, and only the floor temperature reaches the set temperature of the floor temperature or more, the pump of the water circuit is stopped and the operation of stopping the circulation of the hot water is performed.
[0046]
Hereinafter, another example of the air conditioner of the present invention will be described with reference to FIG. FIG. 6 is a diagram for explaining the installation of the air conditioner when the piping hole for the air conditioning refrigerant pipe is also used for the hot water piping of the hot water circuit. In the explanation of FIG. The example has been described in which two piping holes for passing the hot water piping 32 are provided. However, particularly in an apartment house, it is difficult to make a hole in a concrete wall, so a piping hole for installing an air conditioner beforehand. Is often provided. Considering such a residential environment, by sharing the piping hole for the water circuit in the piping hole for the air conditioner, the work efficiency is greatly improved. Through this hole, the refrigerant pipe 12, the hot water pipe 32, the drain water pipe 50, the wiring 15 and the like can be collectively passed. The configuration is possible even when the relay device 30 is not provided. However, when the relay device is provided, it is located near the position where the indoor refrigerant pipe is introduced into the room, for example, below the pipe hole in FIG. Even if it is placed indoors, installation is convenient. The pipe hole and this relay device are connected by a copper pipe. Since others are the same as the above, description is abbreviate | omitted.
[0047]
Hereinafter, another method for installing the air conditioner of the present invention will be described. In the air conditioner described above, the outdoor unit 102 of the air conditioner is provided with the floor heater 103 in advance, that is, the floor heater and the floor heater are installed together with the outdoor unit and the indoor unit. However, the air conditioning apparatus and the floor heating apparatus may be assembled on site. In this case, the floor heating device is mounted on the outdoor unit at the site, and the connecting operation of the stop valves 8a and 8e, which are the connecting portions of the refrigerant pipes, and the operation of connecting the wiring between the outdoor control device and the hot water control device are performed. Since others are the same as the above description, the description is omitted. By doing in this way, it is possible to assemble the floor heating device and floor heating panel on site, so you can install the floor heating device after confirming the installation area of the room, the piping length, etc. Therefore, the work is reliable. In this way, by allowing the floor heating device to be installed later, if the floor heating panel area is too large to fit in the room, the floor heating panel specifications can be further reduced. It is possible to make a purchase with peace of mind, such as changing to a new one, or temporarily placing a panel that fits the room and then making a purchase contract. Furthermore, air conditioners such as outdoor units, indoor units, refrigerant circuits, etc. can be purchased first, and later separately purchased items such as floor heating devices and floor warming panels can be purchased. After confirming the excess and deficiency of the heating that matches the capacity and the required capacity of the room to be installed, you can purchase necessary things when necessary, such as purchasing a floor heating device suitable for heating the room next time, and there is a burden Take less steps. Also, the sales side can be set separately, want to change the room where the air conditioner and floor heating are installed, want to improve the heating capacity, install only the heating before the summer or remove the floor heating panel, before the winter Services that can meet the various demands of users such as turning on floor heating, such as replacing or rearranging some devices, will enable sales opportunities. After purchasing only an air conditioner that performs cooling and heating operations as described above, adding a floor heating function later can be added with simple work without incurring significant construction work and costs such as floor replacement. it can. In other words, sales and installation are self-contained, and the sales side can handle it without any restrictions.
[0048]
Carpenter work such as matching the floor heating panel to the floor of the room so that the installation work of the air conditioner equipped with floor heating is done easily, no special installation tools are required, and the professional contractor is the same By adopting a rear-laying type that does not need to be installed, even an electrician who installs the air conditioner can easily install the floor heating panel.
[0049]
In this invention, in addition to the refrigerant circuit piping connection from the outdoor unit to the indoor unit, the water circuit piping connection from the floor heating device to the floor heating panel, it is necessary to form two circuits, and the extension is connected by flexible arrangement or the like The number of piping work points increases. Therefore, in order to facilitate the installation work, in the piping work connecting the floor heating device to the rear floor type floor heating panel, the piping work connecting the floor heating device to the outer wall, and the piping work connecting the floor heating panel from the indoor wall In addition, a relay device is provided to separate the pipes, and a stock valve is installed at each pipe connection part to reliably hold the refrigerant and water so as not to leak.
[0050]
Furthermore, the present invention enables the installation of the hot water circuit connecting the floor heating panel and the floor heater, in particular, the piping work on the outdoor side can be installed by the same working method as the piping work in the conventional air conditioner. As you can see, they are connected using copper piping.
[0051]
In the installation work of an air conditioner equipped with a floor heating radiator panel, in addition to the piping hole provided in the wall for passing the piping from the room to the outside for forming the refrigerant circuit, the room for forming the water circuit Because it requires two piping holes and two places for passing the piping from the outside to the outside, workability is assumed to deteriorate, so a piping hole for forming the refrigerant circuit and a piping hole for forming the water circuit And use the same piping hole.
[0052]
In addition, according to the present invention, in order to reliably perform the installation work of the water circuit of the air conditioner equipped with the floor heating panel, the installation contractor may confirm the installation area of the room, the pipe length, etc. at the site. is necessary. For that purpose, once the air conditioner such as cooling and heating operation is performed, the outdoor unit and the indoor unit are installed, and at this time, by checking the appropriate floor heating panel area, pipe length, etc. Determine whether it is possible to install the floor heating system. If possible, install a floor heating system consisting of a hot water heat exchanger, circulation pump, water tank, etc. and a water circuit consisting of a floor heating radiator panel. Make it possible. As a result, it is possible to select not only performance but also necessary and sufficient capabilities such as installation, and a highly reliable product can be obtained. In addition, the present invention uses R410A and R32, which are high-pressure refrigerants and have high gas density, as compared to R22, which is a conventional HCFC refrigerant, as refrigerants used in the refrigerant circuit.
[0053]
As is clear from the above, the air conditioner according to the present invention is an electric work that installs the air conditioner without the need for carpentry work for the installation of the floor heating panel by adopting the floor heating panel as a rear-laying type. The person can easily install the floor heating panel with the same tools and the same installation method as the air conditioner installation, making it safer and easier to work without handling fires such as gas. It is possible to reduce the construction cost at the same simple level as the air conditioner installation. Even if the floor heating panel is a rear-laying type, the outdoor unit and the floor heating unit can be separated as necessary, and the components such as the compressor inside the outdoor unit can be separated. The components inside the floor heater may be put together in a box like a hot water heat exchanger, and the arrangement of the heat source side components such as moving the hot water heat exchanger from the floor heater to the outdoor unit Is naturally free.
[0054]
In this invention, the floor heating panel is a rear-laying type, and a heat insulating material is mounted under the floor heating panel, so that the heat of the floor heating panel can be effectively utilized without dissipating the heat to the floor of the room. In addition, it is possible to prevent deformation and scratches due to heat on the floor of the room, and the installer can install a floor heating panel with peace of mind.
[0055]
The present invention relates to a pipe connecting a floor heating device provided outside the room and a floor heating panel of a post-laying type provided in the room, a piping work connecting the floor heating device to the outer wall, and a floor heating panel from the indoor wall. Since the piping work to be connected is separated, the water circuit piping work can be facilitated. As a result, more flexible products such as sales and mounting positions were obtained, and products that were easy to handle were obtained.
[0056]
In addition, the present invention provides an extension pipe for a hot water circuit that connects a floor heating panel and a floor heater, and in particular, the piping work on the outdoor side is installed in the same way as the piping work in the conventional air conditioner. It is possible to improve the efficiency of workability by using copper piping that can be used, and it is possible to work with only the tools used in the installation work of the air conditioner without using special installation tools It became.
[0057]
The present invention also provides a pipe hole penetrating the room wall and the room provided on the wall of the room in order to form the refrigerant circuit of the outdoor unit from the indoor unit in the installation work of the air conditioner provided with the floor heating radiating panel. Since the same piping hole is used as the piping hole for forming the water circuit, the work of the piping hole to be opened in a special wall becomes unnecessary, and the installation work becomes easy.
[0058]
In addition, the present invention checks the installation area of the room, the piping length, etc. at the site where the installation company installs in order to reliably install the water circuit of the air conditioner equipped with the floor heating panel Things are necessary. For that purpose, the work to install the outdoor unit and the indoor unit for air conditioning such as cooling and heating operation was performed once, and it was possible to incorporate the floor heating device into the outdoor unit later on in the refrigerant circuit. When installing an air conditioner equipped with an air conditioner, check the floor heating panel area, piping length, etc. in the room to install the water circuit consisting of the floor heating device and floor heating panel. In addition, since it is possible to install a water circuit composed of a floor heating panel or the like later, it is possible to perform the installation work reliably.
[0059]
In addition, the present invention makes it possible to separate the installation work between the refrigerant circuit and the water circuit, so that the user can first install an air conditioner comprising a refrigerant circuit for performing basic functions such as cooling and heating operations. After the purchase, it became possible to purchase a water circuit consisting of a floor heating panel, etc., as an option, for performing floor heating operation as an additional function.
[0060]
In addition, the present invention uses a high-pressure refrigerant, R410A and R32, which are high-pressure refrigerants and HFC refrigerants, as compared to the conventional HCFC refrigerant R22, and uses less pressure loss in the piping. Therefore, even if the extension pipe of the refrigerant circuit is lengthened, it is possible to minimize the performance degradation, and it is possible to increase the degree of freedom of the outdoor unit and the floor heating device.
[0061]
Next, a method for controlling the air conditioner will be described. However, in the circuit configuration of FIG. 1, the check valve 10 is provided as a bypass circuit of the hot water heat exchanger 26 so as to allow the bypass to pass during cooling. However, an on-off valve may be used instead of the inversion valve. If an on-off valve is used, it can be operated by bypassing the hot water heat exchanger even during heating or heating dehumidification, allowing a wider range of usage. Control for controlling the operation of the indoor unit to perform air conditioning in the room is normal. Here, room temperature control and floor temperature control by the hot water unit will be described. The temperature difference between the hot water feed temperature sensor 36 and the target hot water temperature, the temperature detected by the indoor temperature sensor 16 and the temperature difference between the target indoor air temperature and the temperature difference between the target indoor air temperature are always detected for controlling the temperature inside the room during heating. The temperature difference signal is transmitted to the outdoor unit, and the compressor is controlled by the outdoor unit. When the air-conditioning operation is performed, when the electromagnetic on-off valve 11 provided in the floor heater 10 is operated in an open state, a high-temperature and high-pressure gas refrigerant is discharged from the compressor 1 and passes through the four-way valve 2 to the hot water heat exchanger 26. The inflowing gas refrigerant is condensed by heat exchange with water or brine, which is the secondary heat medium circulated by the hot water circulation pump 28, and cooled to a gas refrigerant cooled from the discharge temperature or a two-phase refrigerant having a high degree of dryness. The brine or water whose temperature of the hot water heat exchanger has risen circulates to the floor heating panel 27, raises the surface temperature of the floor heating panel, performs floor heating, and consequently raises the room temperature. This two-phase refrigerant from the hot water heat exchanger passes through the opened electromagnetic on-off valve 11 and exchanges heat with indoor air in the indoor heat exchanger 6 to condense into a high-pressure, low-dryness gas-liquid two-phase refrigerant or supercooled liquid refrigerant. Then, the pressure is reduced by the electric expansion valve 5 that is a throttle device and evaporated by the outdoor heat exchanger to become a gas refrigerant having a high degree of dryness, and returns from the four-way valve to the compressor.
[0062]
On the other hand, in the indoor heat exchanger, the indoor air circulated by the indoor fan 18 exchanges heat with the refrigerant to heat the room. When passing through the electromagnetic on-off valve 11, the refrigerant passing through the hot water heat exchanger 26 and the indoor heat exchanger 6 has the same high pressure, and the heat transfer area is increased by fins contacting the air provided in the refrigerant pipe to improve the heat transfer performance. The indoor heat exchanger 6 has a condensing capacity that is relatively higher than that of a hot water heat exchanger that uses heat transfer by a double pipe, and a high-pressure operating pressure is determined. On the other hand, when the electromagnetic on-off valve 11 is closed and the refrigerant is passed through a two-stage condensing circuit throttle device, for example, a capillary tube, the gas refrigerant or two-phase refrigerant that has flowed out of the hot water heat exchanger 26 is reduced from high pressure to medium pressure by the throttle device 25. The condensation temperature decreases from the high temperature in the hot water heat exchanger to the medium temperature, and the two-phase refrigerant of medium temperature and medium pressure in the indoor heat exchanger 6 exchanges heat with the room air, thereby air-conditioning and heating the room air. I do. In this way, the electromagnetic on-off valve 11 is closed and two condensing temperatures are produced by the expansion device 25, and the hot water heat provided in front of the refrigerant flow during heating from the indoor heat exchanger 6 with the high-temperature and high-pressure discharge gas refrigerant. Flowing preferentially over the exchanger and allowing the medium-temperature medium-pressure refrigerant to flow into the indoor heat exchanger 6 enables air conditioning mainly based on floor heating. The brine or water that is effectively used by the superheated gas refrigerant discharged from the compressor 1 and exchanged heat with this high-temperature condensing temperature is circulated to the floor heating panel 27 by the hot water circulation pump 28 and stored in the hot water tank 29. Air conditioning is performed by controlling the frequency, which is the rotational speed of the compressor, so as to adjust the floor temperature by the hot water return water sensor 37, but in some cases, adjustment by turning on and off the hot water circulation pump is also possible. On the other hand, in the indoor unit, since the medium-temperature medium-pressure refrigerant with a reduced condensation temperature is allowed to flow, the air-conditioning / heating capacity is suppressed, and the room temperature can be kept appropriate mainly by the floor heating without being excessive. This operation is more effective for comfortable energy-saving operation while saving energy when the room temperature is near the energy-saving target value or sitting in a Japanese-style room. Since the air conditioning heating main operation mode and the floor heating main operation mode can be freely switched by the remote controller 13a, it can be freely selected according to conditions and conditions such as lifestyle and preference, selection of the floor heating panel 27 specification, or arrangement position. Can be set to For example, an indoor unit that performs air conditioning is installed in the living room, usually heating is performed mainly by the indoor unit, and a floor heating panel is installed in another room, such as a kitchen or a toilet, so that it can be switched to a floor heating unit if necessary. Can be obtained. Furthermore, if the relay device 30 is arranged in both the living room and the kitchen, the floor heating position can be switched.
[0063]
FIG. 10 is an explanatory diagram of an operation method of the air conditioner with floor heating, and shows a flowchart of air conditioning control. The temperature Tb of the brine or water that is the secondary heat medium flowing to the floor heating panel 27 is detected by the hot water feed water temperature sensor 36 (S3). The brine detection temperature and the target temperature are compared so that the temperature of the brine or the like becomes a preset target temperature Tb0 (S1) (S4). If the brine temperature is lower than the target temperature, the frequency of the compressor 1 is increased. (S5) If the brine temperature is higher than the target temperature, the frequency is lowered (S6). On the other hand, the indoor unit detects the actual indoor air temperature Ta detected by the indoor temperature sensor 16 with respect to the preset target room temperature Ta0 (S2) (S7), and the actual indoor air temperature and the target air are detected. It is compared whether the temperature difference of the temperature is larger or smaller than the constant value α (S8). If the temperature difference becomes larger, the indoor fan 18 is heated at the normal fan speed (S10), and this temperature difference is less than the predetermined value. If it becomes smaller, the indoor fan 18 is stopped or operated at a low speed (S9), and the heating operation is stopped or the heating capacity is lowered.
[0064]
The above control is performed by the outdoor control device 14 that exchanges signals with the indoor control device 13a and the hot water control device 35a, but may be performed by any control device or distributed control. Further, protection control is performed by signals from each control device. While the electromagnetic on-off valve 11 is closed, the pressure of the hot water heat exchanger is higher than that of the indoor unit. Therefore, the refrigerant temperature of the hot water heat exchanger is detected from the signal of the indoor heat exchanger temperature sensor 17 when the electromagnetic on-off valve 11 is open. By switching to the signal from the sensor 39, it is possible to detect whether or not the temperature range is equivalent to high pressure protection and perform a protection operation. Further, when the electromagnetic on-off valve 11 is closed from the open state, a rapid throttle is added, and the evaporation pressure rapidly decreases. At this time, an operation mode for lowering the frequency of the compressor is performed for a while before the electromagnetic on-off valve 11 is closed in order to protect the take-out of the refrigerator oil from the compressor. Also, depending on the refrigerant temperature after turning on / off the electromagnetic on-off valve, the temperature of brine after turning on / off the hot water circulation pump 28, or the floor heating panel temperature sensor 40, etc. Abnormality determination can also be performed. In addition, the emergency changeover switch of the indoor unit is switched to the forced operation of the pump 28, or the pump is temporarily stopped in conjunction with the floor heating panel temperature sensor for the purpose of prevention of low-frequency burns, etc. When starting the indoor unit, it is possible to stop the pump to prioritize the rise in room temperature. The outdoor control device controls the standard unit that allows the indoor unit to operate alone, and the floor heating control and protection are performed by replacing the signal with a normal indoor unit heating operation. This operation control can be easily switched even when floor heating is added after 2-3 years and is required after 2-3 years, and a user-friendly device can be obtained. In addition, since the air conditioner alone and the floor warming function can be used separately without having to tamper with or add any control device, the sales side can supply it individually or in combination.
[0065]
【The invention's effect】
  An air conditioner according to a first aspect of the present invention includes an indoor unit that sucks in indoor air by an indoor fan that is arranged indoors and blows out air-conditioned air, an outdoor unit that is arranged outside and has an outdoor fan, A refrigerant circuit that circulates a refrigerant by connecting a compressor arranged in the machine, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger arranged in the indoor unit through a refrigerant pipe; A floor having a hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and floor heating brine or water, a hot water pipe for circulating the brine or water, and a connection port connected to the refrigerant pipe to be arranged outside the room It is connected by a hot water pipe via a heater, a floor heater and a relay device having a flow path cut-off mechanism, placed on the floor surface in the room and detachable by a relay device that performs floor heating and placed on the floor surface Floor warming can be changedBunchAndThe stop valve that opens and closes the flow path of the flow path blocking mechanism is provided on the indoor side, and when the hot water pipe connected to the floor heating panel is removed, the flow path of the floor heating panel is closed by the stop valveTherefore, an air conditioner that is efficient, comfortable and easy to handle can be obtained.
  In addition, the floor heating panel can be easily attached and removed, and even if it is removed, brine or water does not leak.
[0066]
  The air conditioner according to claim 2 of the present invention is, RoomA control device that controls the temperature of indoor air detected by the internal temperature sensor and the temperature of brine or water circulating in the floor heating panel by changing the rotational speed of the compressor.PlaceBecause it is equipped, it is easy to control the room temperature.
[0067]
In the air conditioner according to claim 3 of the present invention, the hot water pipe is fixed to a relay device having a flow path blocking mechanism for relaying from the outdoor floor heater connected to the refrigerant circuit to the room, and from this relay device to the floor heating Since the panel is placed on an arbitrary floor surface with flexible piping, the panel can be placed where necessary, and comfortable floor heating can be easily obtained.
[0068]
In the air conditioner according to claim 4 of the present invention, since the floor heating panel is provided with a heat insulating sheet between the floor surface and the floor surface, the panel can be laid in any place with confidence.
[0069]
In the air conditioner according to claim 5 of the present invention, the relay device for relaying from the outdoor floor heater to the room is located at a position where the hot water pipe penetrates from the outside to the room, or at the position where the hot water pipe is introduced into the room together with the refrigerant pipe. The installation of the floor heating is very easy.
[0070]
  The air conditioner according to claim 6 of the present invention uses a copper pipe for the hot water pipe connecting the relay device for relaying from the outdoor floor heater to the room.This hot water pipe made of copper pipe is connected by flaring like the refrigerant circuit pipe.Therefore, the floor heating device can be installed in the same way as the air conditioner installation work and can be easily installed.
[0071]
In the air conditioner according to claim 7 of the present invention, the same piping is used for the piping hole provided in the wall for passing the refrigerant pipe from the room to the outdoor and the piping hole provided in the wall for passing the hot water pipe from the room to the outdoor. Since holes are used, work is not required.
[0072]
  The air conditioner according to claim 8 of the present invention is a hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and the brine or water for floor heating.Four-way valve for switching between cooling and heatingAnd connected between indoor heat exchangersAnd a throttle device connected between the hot water heat exchanger and the indoor heat exchanger, and an electromagnetic on-off valve connected in parallel with the throttle device, connected between the hot water heat exchanger and the indoor heat exchanger. PreparedTherefore, the operation that gives priority to floor heating can be performed freely according to demand.
[0073]
In the air conditioner according to claim 9 of the present invention, the heating capacity of the floor heater is set to be less than or equal to the heating capacity of the indoor unit, so that the room can be warmed quickly at the start of heating and an efficient apparatus is obtained. It is done.
[0074]
The air conditioner according to claim 10 of the present invention is easy to operate because it can be operated by a single remote control device capable of setting the room temperature when performing the heating operation by changing the rotation speed of the compressor. A device is obtained.
[0075]
  An air conditioner installation method according to an eleventh aspect of the present invention includes an indoor unit that is disposed indoors and sucks indoor air by an indoor fan and jets air-conditioned air, an outdoor unit that is disposed outdoor and has an outdoor fan, A refrigerant circuit that circulates a refrigerant by connecting a compressor arranged in the machine, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompressor, and an indoor heat exchanger arranged in the indoor unit through a refrigerant pipe; A hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and the floor heating brine or water, a hot water pipe for circulating the brine or water, and a connection port connected to the refrigerant pipe are provided outside the room. A floor heater, a floor heating radiator panel that is connected by a hot water pipe via a floor heater and a relay device, and is detachable by a relay device that is placed on the floor surface of the room and performs floor heating;A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;After installing the indoor unit, the outdoor unit, and the refrigerant circuit outdoors and indoors, the hot water pipe and the relay device are attached outdoors and indoors.
  In addition, the floor heating panel can be easily attached and removed, and even if it is removed, brine or water does not leak.
[0076]
  According to a twelfth aspect of the present invention, an air conditioner installation method includes an indoor heat exchanger, an indoor fan, an indoor unit control device, an indoor unit having an indoor temperature sensor, a compressor, an outdoor heat exchanger, an outdoor fan, a decompressor, An outdoor unit having a four-way valve for switching between cooling and heating and an outdoor unit control device, a refrigerant circuit that circulates refrigerant in the indoor unit and the outdoor unit to perform an air conditioning function such as cooling and heating operation, and floor heating in the refrigerant circuit A hot water heat exchanger to exchange heat with brine or water and refrigerantPossessA floor heater comprising a water circuit such as a circulation pump and a water tank and performing floor heating operation;A floor heating panel that is connected to the floor heater via a hot water pipe that circulates brine or water through a relay device, is placed on the floor surface of the room and is detachable by a relay device that performs floor heating, and provided in the relay device A flow path blocking mechanism in which a stop valve that opens and closes the flow path and closes the flow path of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed on the indoor side.After installing the outdoor unit at the installation site, install the floor heater into the outdoor unitAfter installing the refrigerant piping and circulating the refrigerant, install the hot water pipingTherefore, handling and construction work are easy and reliable.
  In addition, since the hot water pipe is installed after the refrigerant pipe is installed and the refrigerant is circulated, it is possible to install a safe and highly reliable apparatus.
  In addition, the floor heating panel can be easily attached and removed, and even if it is removed, brine or water does not leak.
[0078]
  Claims of the invention13The indoor air conditioner installation method includes an indoor unit that sucks indoor air and blows out air-conditioned air, an outdoor unit that is disposed outside and has an outdoor fan, a compressor that is disposed in the outdoor unit, and cooling and heating Air-conditioning system that has a four-way valve for switching, an outdoor heat exchanger, a decompressor, and a refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger arranged in the indoor unit with a refrigerant pipe to circulate the refrigerant independently And a hot water heat exchanger, circulation pump, water tank, which exchange heat with brine or water and refrigerant in the refrigerant circuit that can be connected to the refrigerant circuit in the air conditioner.Relay device,And floor warmingBunchA water circuit device for connecting floors with hot water piping and performing a floor heating operation function;A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;When the air conditioner and the water circuit device are used in combination, after installing and operating the air conditioner alone, it is possible to select the specifications of the floor heating and heat dissipating panel that is placed indoors and laid behind, so that the user can Equipment that provides heating suitable for the environment can be obtained when needed, and sales opportunities will increase, such as the individual being able to sell individually.
  In addition, the floor heating panel can be easily attached and removed, and even if it is removed, brine or water does not leak.
[0079]
  Claims of the invention14The indoor air conditioner installation method of the present invention includes an indoor unit that sucks indoor air and blows out air-conditioned air, an outdoor unit that has an outdoor fan that is disposed outdoors, a compressor that is disposed in the outdoor unit, cooling and heating Air-conditioning system that has a four-way valve for switching, an outdoor heat exchanger, a decompressor, and a refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger arranged in the indoor unit with a refrigerant pipe to circulate the refrigerant independently The floor is connected with a hot water heat exchanger, circulation pump, water tank, and relay device for exchanging heat with the floor heating brine or water and refrigerant in the refrigerant circuit, which can be connected to the refrigerant circuit in the air conditioner. A water circuit device that performs a heating operation function;A channel shut-off mechanism provided in the relay device, in which a stop valve that opens and closes the channel and closes the channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed indoors;An air conditioner and a water circuit device are used in combination.TheAfter installation and operation of the air conditioner, the floor warmer connected to the relay device with hot water piping and placed indoors and laid behindBunchTherefore, it is possible to reliably obtain a device having a necessary and sufficient capacity.
  In addition, the floor heating panel can be easily attached and removed, and even if it is removed, brine or water does not leak.
[Brief description of the drawings]
FIG. 1 is a circuit configuration diagram according to a first embodiment of the present invention.
FIG. 2 is a structural explanatory diagram of an air conditioner with floor heating according to the first embodiment of the present invention.
FIG. 3 is a configuration diagram of the air conditioner with floor heating according to the first embodiment of the present invention.
FIG. 4 is a configuration explanatory diagram of a floor heating panel according to Embodiment 1 of the present invention.
FIG. 5 is an explanatory diagram of the indoor configuration of the air conditioner with floor heating according to the first embodiment of the present invention.
FIG. 6 is another explanatory diagram of the indoor configuration of the air conditioner with floor heating according to the first embodiment of the present invention.
FIG. 7 is an explanatory diagram of a configuration of a relay device according to the first embodiment of the present invention.
FIG. 8 is an external view of the plug of the relay device according to the first embodiment of the present invention.
FIG. 9 is a configuration explanatory diagram in which a floor heating device is attached to the outdoor unit according to the first embodiment of the present invention.
FIG. 10 is an explanatory diagram of an operation method of the air conditioner with floor heating according to the first embodiment of the present invention.
FIG. 11 shows a conventional refrigerant / water circuit configuration diagram.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compressor, 2 Four-way valve, 3 Outdoor heat exchanger, 4 Capillary tube, 5 Electric expansion valve, 6 Indoor heat exchanger, 7 Accumulator, 8, 8a Piping connection terminal part (stop valve installation in outdoor unit), 8b Piping Connection terminal (stop valve installed on floor heating device), 8c Pipe connection terminal (indoor unit (gas side)), 8d Pipe connection terminal (stop valve (liquid side) in outdoor unit), 8e Pipe connection terminal (floor 8f Pipe connection terminal (indoor unit (liquid side)), 9, 9a Muffler 1, 9b Muffler 2, 9c Muffler 3, 10 Check valve, 11 Electromagnetic on-off valve, 12a Extension copper piping (Gas side), 12b extension copper piping (liquid side), 13a indoor unit control device, 13b wiring unit of indoor unit control device, 13 c Input unit of indoor unit control device, 13d remote controller, 14 control unit for outdoor unit, 15 connection wiring, 16 indoor temperature sensor, 17 indoor heat exchanger temperature sensor (indoor side tube temperature sensor), 18 indoor fan, 19 indoor Fan motor, 20 Defrost detection temperature sensor, 21 Outside air temperature sensor, 22 Compressor discharge temperature sensor, 23 Outdoor fan, 24 Outdoor fan motor, 25 Throttle device (for two-stage condensation circuit), 26 hot water heat exchanger, 27 Floor heating Panel, 28 Hot water circulation pump, 29 Hot water tank, 30 Relay device, 31, 31a Hot water piping connection terminal (feed side), 31b Hot water piping connection terminal (return water side), 32, 32a Extended copper piping for hot water piping (Feed side), 32b Hot water pipe extension copper pipe (return side), 33, 33 Extension pipe (feed side) of hot water pipe, 33b Extension pipe (return side) of hot water pipe, 34, 34a, 34b, 34c, 34d Extension pipe connection terminal part, 35 Hot water control apparatus for floor heater, 35b Hot water control apparatus part Wiring connection terminal section, 36 hot water feed water temperature sensor, 37 hot water return water temperature sensor, 38 water level sensor, 39 refrigerant temperature detection sensor of hot water heat exchanger, 40 floor heating panel temperature sensor, 41 floor heating panel configuration (wood flooring 42) Heating material for floor heating panels, 43 Heat insulation material for floor heating panels (type that only lays under the floor heating panel), 44 Carpet type for floor heating panels, 45 General carpet, 50 Drain water Piping, 51 Indoor unit mounting plate, 52 Foundation, 53 Outdoor unit grill, 54 Indoor unit grill, 5 Power line, 58 cover, 61, 62 input device, 70 wall, 71 outlet body, 72-pin, 73 the channel 74 resin tube, 75 connecting terminal pipe fixing material, 76 copper pipe.

Claims

An indoor unit that sucks indoor air by a built-in indoor fan and blows out air-conditioned air, an outdoor unit that has an outdoor fan that is arranged outdoors, a compressor that is arranged in the outdoor unit, and cooling and heating A four-way valve for switching, an outdoor heat exchanger, a pressure reducer, a refrigerant circuit that connects the indoor heat exchanger arranged in the indoor unit with a refrigerant pipe and circulates the refrigerant, and a refrigerant that flows in the refrigerant circuit and for floor heating A floor water heater having a hot water heat exchanger for exchanging heat with brine or water and a hot water pipe for circulating the brine or water, and provided with a connection port connected to the refrigerant pipe, and the floor heater and the flow path A floor warmer that is connected to the hot water pipe via a relay device having a shut-off mechanism, is detachable by the relay device that is placed on the floor surface of the room and performs floor heating, and the position on the floor surface can be changed. includes a Bopa panel, the, Stop valve for a flow path opening and closing of Kiryuro blocking mechanism is provided in the indoor side, wherein said closing the flow path of the floor heating panel by a stop valve when removing the hot water pipe connected to the floor heating panel Air conditioner.

Wherein the temperature of the brine or water circulating temperature and the floor heating panel of the indoor air detected by the chamber temperature sensor e Bei the controller to change and control the rotational speed of the compressor The air conditioning apparatus according to claim 1 .

The hot water pipe is fixed to a relay device having a flow path blocking mechanism for relaying from the outdoor floor heater connected to the refrigerant circuit to the room, and flexible piping from the relay device to the floor heating panel. The air conditioner according to claim 1, wherein the air conditioner is placed on an arbitrary floor surface.

The air conditioning apparatus according to claim 1, wherein the floor heating panel is provided with a heat insulating sheet between the floor surface and the floor surface.

The relay device for relaying from the floor heater outside the room to the room is provided at a position penetrating the hot water pipe from the outside to the room, or at a position where the hot water pipe is introduced into the room together with the refrigerant pipe. The air conditioner according to any one of claims 1 to 4.

Hot water pipe connecting the relay device for relaying to said chamber from said outside of said floor heating system, using a copper pipe was connected the hot water pipe made of copper piping same flaring the pipe of the refrigerant circuit The air conditioner according to any one of claims 1 to 5, wherein

The same piping hole is used for the piping hole provided in the wall for passing the refrigerant piping from the room to the outdoor and the piping hole provided in the wall for passing the hot water pipe from the room to the outdoor. The air conditioning apparatus according to any one of 6.

A hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and brine or water for floor heating is connected between a cooling / heating switching four-way valve and an indoor heat exchanger, and the hot water heat A throttle device connected between the exchanger and the indoor heat exchanger; and an electromagnetic on-off valve connected between the hot water heat exchanger and the indoor heat exchanger and provided in parallel with the throttle device. air conditioning apparatus according to any one of claims 1 to 7, characterized in that it comprises.

The air conditioner according to any one of claims 1 to 8, wherein a heating capacity of the floor heater is approximately equal to or less than a heating capacity of the indoor unit.

The air according to any one of claims 1 to 9, wherein when performing the heating operation by changing the rotation speed of the compressor, the air can be operated by a single remote control device capable of setting a room temperature. Harmony device.

An indoor unit that is arranged indoors and sucks indoor air by an indoor fan and blows out air-conditioned air, an outdoor unit that is arranged outdoors and has an outdoor fan, a compressor arranged in the outdoor unit, and switching between cooling and heating Four-way valve, outdoor heat exchanger, pressure reducer, and refrigerant circuit for circulating refrigerant by connecting indoor heat exchangers arranged in the indoor unit with refrigerant piping, refrigerant flowing in the refrigerant circuit, and floor heating brine Or a hot water heat exchanger that exchanges heat with water and a hot water pipe that circulates this brine or water, and a floor heater that is disposed outside the room, and the hot water pipe that passes through the floor heater and the relay device It is connected, and the floor heating Bopa panel removable in the relay apparatus is placed on a room floor performing floor heating, provided to the relay device, connected to the floor heating panel subjected to the flow path opening and closing When the hot water piping is removed And a flow path blocking mechanism disposed the stop valve to close the flow path of the floor heating panel to the indoor side, the indoor unit, after installing the outdoor unit and the refrigerant circuit in the outdoor and indoor, the hot water pipe and the relay A method for installing an air conditioner, characterized in that a device is attached outside and indoors.

An indoor unit having an indoor heat exchanger, an indoor fan, an indoor unit control device and an indoor temperature sensor, a compressor, an outdoor heat exchanger and an outdoor fan, a decompressor, a four-way valve for switching between cooling and heating, and an outdoor unit control device an outdoor unit having a refrigerant circuit which performs air conditioning functions such as cooling and heating operation by circulating a refrigerant in the indoor unit and the outdoor unit, thereby brine or water and a refrigerant heat exchanger for floor heating in the refrigerant circuit It has a hot water heat exchanger and consists of a water circuit such as a circulation pump and a water tank, and is connected to a floor heater that performs floor heating operation and a hot water pipe that circulates brine or water through the floor heater and a relay device. A floor heating panel that is mounted on the floor surface of the room and detachable by the relay device that performs floor heating, and a hot water pipe that is provided in the relay device and that opens and closes a flow path and is connected to the floor heating panel Comprising a flow path blocking mechanism the stop valve for closing the floor flow path of the heating panel was placed in a room side when removed, and the floor heating unit to the outdoor unit at installation site after was installed to the outdoor unit built-in, an air conditioner installation method characterized by installing the hot water pipe after circulating the refrigerant installation the refrigerant pipe.

An indoor unit that is arranged indoors and sucks in the indoor air and blows out air-conditioned air, an outdoor unit that is arranged outside and has an outdoor fan, a compressor that is arranged in the outdoor unit, a four-way valve for switching between cooling and heating, An air conditioner for independently performing indoor air conditioning, including an outdoor heat exchanger, a decompressor, and a refrigerant circuit that connects the indoor heat exchanger disposed in the indoor unit with a refrigerant pipe and circulates the refrigerant, and the air conditioner hot water heat exchanger which exchanges heat with the refrigerant of the brine or water and the refrigerant circuit for connectable floor heating in the refrigerant circuit of the machine, the circulation pump, water tank, a relay device, and connect the Yukadan Bopa flannel with warm water pipe A water circuit device that performs the function of floor heating operation, and a stop that is provided in the relay device, opens and closes the flow channel, and closes the flow channel of the floor heating panel when the hot water pipe connected to the floor heating panel is removed Place the valve indoors Comprising a flow path blocking mechanism, and when used in combination with the water circuit device and the air conditioner, after operated installation in the air conditioner alone, the floor heating Bopa channel to spread later placed in a room A method of installing an air conditioner, wherein specifications can be selected.

An indoor unit that is arranged indoors and sucks in the indoor air and blows out air-conditioned air, an outdoor unit that is arranged outside and has an outdoor fan, a compressor that is arranged in the outdoor unit, a four-way valve for switching between cooling and heating, An air conditioner for independently performing indoor air conditioning, including an outdoor heat exchanger, a decompressor, and a refrigerant circuit that connects the indoor heat exchanger disposed in the indoor unit with a refrigerant pipe and circulates the refrigerant, and the air conditioner The floor heating brine and water that can be connected to the refrigerant circuit of the machine and the hot water heat exchanger that exchanges heat with the refrigerant in the refrigerant circuit, a circulation pump, a water tank, and a relay device are connected by hot water piping. A water circuit device that performs a function and a stop valve that is provided in the relay device and that opens and closes the flow path and closes the flow path of the floor heating panel when the hot water pipe connected to the floor heating panel is removed is disposed on the indoor side. and the flow path shut-off mechanism, Provided, arranged when used in combination with the water circuit device and the air conditioner, after operation of the air conditioner and installed the air conditioner and the water circuit device, the chamber being connected with the hot water pipe to the relay device air conditioner installation wherein the selectable specifications of the floor heating Bopa channel to spread later to.