JPH06273007A - Retrofit working method of air conditioning apparatus - Google Patents
Retrofit working method of air conditioning apparatusInfo
- Publication number
- JPH06273007A JPH06273007A JP6642193A JP6642193A JPH06273007A JP H06273007 A JPH06273007 A JP H06273007A JP 6642193 A JP6642193 A JP 6642193A JP 6642193 A JP6642193 A JP 6642193A JP H06273007 A JPH06273007 A JP H06273007A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- air conditioner
- chlorine
- fluorocarbon
- label
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、従来より使用している
塩素を含む冷媒（例えばクロロフルオロカーボンやヒド
ロクロロフルオロカーボン）を作動冷媒としていた空気
調和機において、オゾン層保護を目的として、オゾン層
を破壊しない冷媒（例えばヒドロフルオロカーボン、特
に塩素非含有の非共沸混合冷媒）に入れ換えるレトロフ
ィットの作業手順に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner using a conventionally used refrigerant containing chlorine (for example, chlorofluorocarbon or hydrochlorofluorocarbon) as a working refrigerant. It relates to a retrofit procedure in which a non-destructive refrigerant (e.g. a hydrofluorocarbon, especially a chlorine-free, non-azeotropic refrigerant) is replaced.
【０００２】[0002]
【従来の技術】近年、フロンガスによるオゾン層破壊の
問題への関心が高まり、フロンガスの使用量が規制され
る動きがある。このような背景のもと、現在空気調和機
に使用している弗化炭化水素系冷媒はオゾン層を破壊す
る要因となるため、そのような懸念のない代替冷媒を使
用する空気調和機の開発が待ち望まれている。2. Description of the Related Art In recent years, there has been a growing interest in the problem of ozone layer depletion due to CFCs, and the amount of CFCs used has been restricted. Against this background, the fluorohydrocarbon refrigerants currently used in air conditioners become a factor that destroys the ozone layer, so the development of air conditioners that use alternative refrigerants without such concerns Is awaited.
【０００３】代替冷媒の有力候補として、非共沸混合冷
媒等の塩素非含有の弗化炭化水素系冷媒の使用が現在検
討されている。The use of chlorine-free fluorinated hydrocarbon type refrigerants such as non-azeotropic mixed refrigerants is currently under consideration as a promising alternative refrigerant.
【０００４】また、将来、現状の塩素を含む弗化炭化水
素系冷媒を使用している空気調和機の修理等に際し、塩
素を含む弗化炭化水素系冷媒そのものが製造中止等によ
り供給不可能になることが予想される。Further, in the future, at the time of repairing an air conditioner that uses the current fluorocarbon-based refrigerant containing chlorine, the fluorocarbon-based refrigerant itself containing chlorine will not be able to be supplied due to production stoppage or the like. Expected to become.
【０００５】そのような事態の対応策として、供給可能
な代替冷媒である塩素を含まない冷媒を使用中の空気調
和機に代替として封入して運転使用することが考えられ
る。このように現在使用中の空気調和機において冷媒を
入れ替える作業（例えば塩素を含む弗化炭化水素系冷媒
を使用中の空気調和機に、塩素を含まない代替冷媒を封
入して運転使用すること）をレトロフィットという。As a countermeasure against such a situation, it is conceivable that a refrigerant that does not contain chlorine, which is a substitute refrigerant that can be supplied, is enclosed in an air conditioner in use as an alternative for operation. In this way, work to replace the refrigerant in the air conditioner currently in use (for example, to operate by using a chlorine-containing fluorohydrocarbon refrigerant in an air conditioner that is using a chlorine-free alternative refrigerant) Is called retrofit.
【０００６】[0006]
【発明が解決しようとする課題】仮りに空気調和機に使
用冷媒名とその封入量を表示していても、レトロフィッ
ト作業後に表示がそのままであると、封入冷媒が変更に
なっていることが判らなくなってしまい、次回の修理時
等に問題となることが予想される。Even if the air conditioner displays the name of the refrigerant used and the amount of the enclosed refrigerant, if the indication remains as it is after the retrofit work, the enclosed refrigerant may be changed. It is expected that it will become unclear and will cause a problem at the next repair etc.
【０００７】本発明の目的は、上記問題を解決する空気
調和機のレトロフィット作業手順を提供することにあ
る。An object of the present invention is to provide a retrofit work procedure for an air conditioner that solves the above problems.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、レトロフィット作業後、適用冷媒が塩素
を含まない冷媒になった旨の表示ラベルを貼るようにす
ることを特徴とする。尚、冷凍機油を交換した場合に
は、新冷凍機油名も表示ラベルに示すことも特徴とす
る。In order to achieve the above-mentioned object, the present invention is characterized in that after retrofitting work, a label indicating that the applied refrigerant has become a refrigerant containing no chlorine is attached. To do. When the refrigerating machine oil is replaced, the name of the new refrigerating machine oil is also shown on the display label.
【０００９】以下、本発明の空気調和機のレトロフィッ
ト作業方法の特徴について述べる。The features of the retrofit work method for the air conditioner of the present invention will be described below.
【００１０】（１）圧縮機、凝縮器、減圧器、蒸発器を
含む要素を接続配管によって接続した冷凍サイクルを有
し、作動冷媒として弗化炭化水素系冷媒を用いる空気調
和機において、冷凍サイクル中に塩素を含む弗化炭化水
素系冷媒を抜き取り回収し、代わりに塩素を含まない弗
化炭化水素系冷媒を封入し、更に少なくとも該塩素を含
まない弗化炭化水素系冷媒適用である旨の表示ラベルを
空気調和機に貼ることを特徴とする。(1) An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a pressure reducer, and an evaporator are connected by a connecting pipe, and a refrigeration cycle is used in an air conditioner using a fluorohydrocarbon refrigerant as a working refrigerant. The fluorocarbon-based refrigerant containing chlorine is extracted and collected, and instead, a fluorohydrocarbon-based refrigerant that does not contain chlorine is enclosed, and at least the fluorocarbon-based refrigerant that does not contain the chlorine is applied. The feature is that the display label is attached to the air conditioner.
【００１１】（２）圧縮機、凝縮器、減圧器、蒸発器を
含む要素を接続配管によって接続した冷凍サイクルを有
し、作動冷媒として弗化炭化水素系冷媒を用いる空気調
和機において、冷凍サイクル中に塩素を含む弗化炭化水
素系冷媒を抜き取り回収し、代わりに塩素を含まない弗
化炭化水素系冷媒を封入し、更に少なくとも該塩素を含
まない弗化炭化水素系冷媒適用である旨の修正ラベルを
空気調和機に既に貼られている表示ラベルの上から貼る
ことを特徴とする。(2) In an air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by a connecting pipe, and a fluorocarbon refrigerant is used as a working refrigerant, a refrigeration cycle The fluorocarbon-based refrigerant containing chlorine is extracted and collected, and instead, a fluorohydrocarbon-based refrigerant that does not contain chlorine is enclosed, and at least the fluorocarbon-based refrigerant that does not contain the chlorine is applied. The feature is that the correction label is attached on the display label already attached to the air conditioner.
【００１２】（３）圧縮機、凝縮器、減圧器、蒸発器を
含む要素を接続配管によって接続した冷凍サイクルを有
し、作動冷媒として弗化炭化水素系冷媒を用いる空気調
和機において、冷凍サイクル中に塩素を含む弗化炭化水
素系冷媒を抜き取り回収し、代わりに塩素を含まない弗
化炭化水素系冷媒を封入し、更に少なくとも該塩素を含
まない弗化炭化水素系冷媒適用である旨の表示ラベルを
既に空気調和機に貼られている表示ラベルを剥がして貼
り替えることを特徴とする。(3) An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by connecting pipes, and a refrigeration cycle is used in an air conditioner using a fluorocarbon refrigerant as a working refrigerant. The fluorocarbon-based refrigerant containing chlorine is extracted and collected, and instead, a fluorohydrocarbon-based refrigerant that does not contain chlorine is enclosed, and at least the fluorocarbon-based refrigerant that does not contain the chlorine is applied. A feature of the present invention is that the display label that has already been attached to the air conditioner is removed and replaced.
【００１３】（４）圧縮機、凝縮器、減圧器、蒸発器を
含む要素を接続配管によって接続した冷凍サイクルを有
し、作動冷媒として弗化炭化水素系冷媒を用いる空気調
和機において、冷凍サイクル中に塩素を含む弗化炭化水
素系冷媒を抜き取り回収し、代わりに塩素を含まない弗
化炭化水素系冷媒を封入し、更に既に貼られている表示
ラベルの該当箇所を少なくとも該塩素を含まない弗化炭
化水素系冷媒適用である旨に訂正することを特徴とす
る。(4) An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a pressure reducer, and an evaporator are connected by connecting pipes, and a refrigeration cycle is used in an air conditioner using a fluorocarbon refrigerant as a working refrigerant. Fluorohydrocarbon-based refrigerant containing chlorine is extracted and collected, and instead, fluorocarbon-based refrigerant that does not contain chlorine is enclosed, and the relevant part of the label already attached does not contain at least the chlorine. It is characterized in that it is corrected to be applied to a fluorohydrocarbon refrigerant.
【００１４】（５）（１）、（２）、（３）または
（４）において、前記ラベルは空気調和機のサービス蓋
の近傍に位置させることを特徴とする。(5) In (1), (2), (3) or (4), the label is located near the service lid of the air conditioner.
【００１５】（６）（１）、（２）、（３）、（４）ま
たは（５）において、前記冷媒のレトロフィット作業に
際し、更に冷凍機油も抜き取り回収して新たな冷凍機油
を封入することを特徴とする。(6) In (1), (2), (3), (4) or (5), during retrofitting of the refrigerant, refrigerating machine oil is also extracted and recovered, and new refrigerating machine oil is sealed. It is characterized by
【００１６】（７）（６）において、前記ラベルには新
たな冷凍機油も表示することを特徴とする。(7) In (6), a new refrigerating machine oil is also displayed on the label.
【００１７】（８）（１）、（２）、（３）、（４）、
（５）、（６）または（７）において、前記新たに入れ
る冷媒は非共沸混合冷媒であることを特徴とする。(8) (1), (2), (3), (4),
In (5), (6) or (7), the newly added refrigerant is a non-azeotropic mixed refrigerant.
【００１８】尚、ラベルへの冷媒表示は、一般名、慣用
名、化学式、ＩＵＰＡＣ名等適宜選択すればよい。The labeling of the refrigerant on the label may be appropriately selected from common names, common names, chemical formulas, IUPAC names and the like.
【００１９】塩素を含まない弗化炭化水素系の代替冷媒
としては、例えばＲ１４（ＣＦ4）、Ｒ２３（ＣＨ
Ｆ3）、Ｒ３２（ＣＨ2Ｆ2）、Ｒ１１６（ＣＦ3−Ｃ
Ｆ3）、Ｒ１２５（Ｃ2ＨＦ5）、Ｒ１３４（ＣＨＦ2−Ｃ
ＨＦ2）、Ｒ１３４ａ（ＣＦ3−ＣＨ2Ｆ）、Ｒ１５２
（ＣＨ2Ｆ−ＣＨ2Ｆ）、Ｒ１５２ａ（ＣＨ3−ＣＨ
Ｆ2）、等、一般式ＣlＨmＦn（但し、ｌ，ｍ，ｎは２
（ｌ＋１）＝ｍ＋ｎを満足する正の整数。ｍは０も有り
うる。）が挙げられるが、Ｒ２２（ＣＨＣｌＦ2）に近
い性質を出せる等の理由から、Ｒ３２＋Ｒ１３４ａや、
Ｒ３２＋Ｒ１２５＋Ｒ１３４ａ等の非共沸の混合冷媒
や、Ｒ３２＋Ｒ１２５等の共沸の混合冷媒も有効であ
る。Examples of chlorine-free fluorohydrocarbon alternative refrigerants include R14 (CF 4 ), R23 (CH
F 3), R32 (CH 2 F 2), R116 (CF 3 -C
F 3), R125 (C 2 HF 5), R134 (CHF 2 -C
HF 2), R134a (CF 3 -CH 2 F), R152
(CH 2 F-CH 2 F ), R152a (CH 3 -CH
F 2 ), etc., and the general formula C l H m F n (where l, m, and n are 2
A positive integer that satisfies (l + 1) = m + n. m can be 0. ), But it can be mentioned, for reasons such as put out properties similar to R22 (CHClF 2), and R32 + R134a,
Non-azeotropic mixed refrigerants such as R32 + R125 + R134a and azeotropic mixed refrigerants such as R32 + R125 are also effective.
【００２０】尚、本発明は、空気調和機を例にとって説
明しているが、広くレトロフィット作業全般に適用し得
るものである。Although the present invention has been described by taking an air conditioner as an example, it can be widely applied to all retrofit operations.
【００２１】[0021]
【作用】本発明によれば、表示ラベル或いは修正ラベル
により、レトロフィット後の適用冷媒や冷凍機油が非塩
素含有の代替冷媒であること、及び新冷凍機油であるこ
とが一目で識別できる。また、表示ラベルを既に空気調
和機に貼られている表示ラベルを剥がして貼り替える場
合は、レトロフィット後の適用冷媒や冷凍機油が非塩素
含有の代替冷媒であること、及び新冷凍機油であること
の、誤認が無くなる。また、既に貼られている表示ラベ
ルの該当箇所を少なくとも該塩素を含まない弗化炭化水
素系冷媒適用である旨に訂正する場合も、レトロフィッ
ト後の適用冷媒や冷凍機油が非塩素含有の代替冷媒であ
ること、及び新冷凍機油であることが一目で識別でき
る。前記ラベルは空気調和機のサービス蓋の近傍に位置
させるので、レトロフィット作業者の目につきやすい。According to the present invention, it is possible to identify at a glance that the applied refrigerant or refrigerating machine oil after retrofitting is a chlorine-free alternative refrigerant and the new refrigerating machine oil by the display label or the correction label. Also, when peeling off the display label already attached to the air conditioner and replacing it, the applicable refrigerant or refrigerating machine oil after retrofitting is a substitute refrigerant containing no chlorine, and it is a new refrigerating machine oil. There is no false positive. Also, when correcting the applicable part of the labeling already attached to the fact that at least the chlorine-free fluorocarbon-based refrigerant is applied, the applicable refrigerant or refrigerating machine oil after retrofit does not contain chlorine. It can be identified at a glance that it is a refrigerant and a new refrigerating machine oil. Since the label is located near the service lid of the air conditioner, it is easy for a retrofit operator to see it.
【００２２】[0022]
【実施例】以下、本発明を図面に従って説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.
【００２３】図１に本発明の一実施例に係る、空気調和
機のレトロフィット作業手順を示す。FIG. 1 shows a retrofit work procedure for an air conditioner according to an embodiment of the present invention.
【００２４】先ず、ステップ１（Ｓ１）において現在使
用中の空気調和機から作動冷媒である塩素含有の弗化炭
化水素系冷媒を冷媒回収装置を用いて抜き取り、回収す
る。次にステップ２（Ｓ２）において冷凍サイクル内に
残っている塩素含有の弗化炭化水素系冷媒の濃度を測定
し、規定の濃度以下になっているか否かを点検し、規定
の濃度以下（１％以下が望ましい）になっていない場
合、引き続き回収作業を続ける。First, in step 1 (S1), a chlorine-containing fluorohydrocarbon refrigerant, which is a working refrigerant, is extracted from the air conditioner currently in use and recovered by using a refrigerant recovery device. Next, in step 2 (S2), the concentration of the chlorine-containing fluorohydrocarbon-based refrigerant remaining in the refrigeration cycle is measured, and it is checked whether or not the concentration is below the specified concentration. % Or less is desirable), continue the recovery work.
【００２５】規定の濃度以下になったら、ステップ３
（Ｓ３）に進み、圧縮機を切断により切り離し、圧縮機
内部に溜っている冷凍機油を抜き取る。When the concentration falls below the specified level, step 3
Proceeding to (S3), the compressor is cut off and separated, and the refrigerating machine oil accumulated inside the compressor is drained.
【００２６】次にステップ４（Ｓ４）にて圧縮機内及び
冷凍サイクル内を、新たに適用せんとする塩素非含有の
弗化炭化水素系冷媒（本例においてはＲ３２＋Ｒ１３４
ａの非共沸混合冷媒）で共洗いして、内部に残っている
塩素含有の弗化炭化水素系冷媒及び冷凍機油を洗い出
す。Next, in step 4 (S4), the inside of the compressor and the refrigeration cycle are newly applied as a chlorine-free fluorocarbon-based refrigerant (in this example, R32 + R134).
A non-azeotropic mixed refrigerant of a) is co-washed, and the chlorine-containing fluorohydrocarbon-based refrigerant and refrigerating machine oil remaining inside are washed out.
【００２７】ステップ５（Ｓ５）では代替の新冷凍機油
（すなわちＲ３２＋Ｒ１３４ａ適用時の冷凍機油エステ
ル油が候補である）を規定量（通常、従来冷凍機油と同
量）圧縮機内に封入する。そしてステップ６（Ｓ６）に
おいて圧縮機を元通りに溶接により接続し、ステップ７
（Ｓ７）として真空ポンプにより冷媒サイクル内の真空
を引く。In step 5 (S5), a new alternative refrigerating machine oil (that is, the refrigerating machine oil ester oil when R32 + R134a is applied is a candidate) is enclosed in a specified amount (usually the same amount as the conventional refrigerating machine oil). Then, in Step 6 (S6), the compressor is connected again by welding, and Step 7
As (S7), the vacuum in the refrigerant cycle is pulled by the vacuum pump.
【００２８】更に、ステップ８（Ｓ８）にて冷凍サイク
ル内の真空度を点検し、規定値以下（通常、３ｍｍＨｇ
以下）になるまで真空を引き続ける。規定の真空度以下
になったら、ステップ９（Ｓ９）として代替冷媒である
非共沸混合冷媒を規定量（通常、従来冷媒と同量）封入
する。Furthermore, in step 8 (S8), the degree of vacuum in the refrigeration cycle is checked to find that it is below a specified value (usually 3 mmHg
Continue to apply vacuum until the following). When the degree of vacuum becomes equal to or lower than the specified degree of vacuum, in step 9 (S9), a specified amount (usually the same amount as the conventional refrigerant) of the non-azeotropic mixed refrigerant that is the alternative refrigerant is filled.
【００２９】最後にステップ１０（Ｓ１０）において非
共沸混合冷媒及び新冷媒適用である旨の表示ラベルを製
品たる空気調和機のサービス蓋の近傍の位置に貼り付け
る。以上でレトロフィトの作業を終了する。Finally, in step 10 (S10), a label indicating that the non-azeotropic mixed refrigerant and the new refrigerant are applied is attached to a position near the service lid of the air conditioner as a product. This completes the retrofit work.
【００３０】尚、表示ラベルが貼ってあるならば、冷媒
表示や冷凍機油表示部位上に限定して或いは余白部分に
のみ、修正ラベルを貼り付けて対応することも有効であ
る。If the display label is attached, it is also effective to apply the correction label only to the refrigerant display portion or the refrigerating machine oil display portion or only the blank portion.
【００３１】上記実施例は、冷媒と冷凍機油との双方を
交換した例を述べたが、支障なくば冷媒のみの交換で足
りる。この場合、冷凍機油中にも若干の古い冷媒が溶け
込まれているが、運転上、或いはオゾン層破壊の影響等
において支障のない範囲で実施可能である。In the above-mentioned embodiment, the example in which both the refrigerant and the refrigerating machine oil are exchanged has been described, but it is sufficient to exchange only the refrigerant without any trouble. In this case, although some old refrigerant is also dissolved in the refrigerating machine oil, the refrigerating machine oil can be carried out within a range where there is no problem in operation or in the influence of ozone layer depletion.
【００３２】図２に本発明に使用し得る表示ラベルの一
例を示す。本例では代替冷媒名と代替冷凍機油名と各々
の封入量とを併記してある。すなわち図２の例は、新た
に製品に貼り付けるラベルを示しており、「フロン規制
対応冷媒適用済」なる表記をし、冷媒として塩素を含ま
ない弗化炭化水素系の非共沸混合冷媒のフロンＲ３２／
フロンＲ１３４ａとその封入量を明示してある。また、
対応する冷凍機油名とその封入量も明示してある。FIG. 2 shows an example of a display label that can be used in the present invention. In this example, the name of the alternative refrigerant, the name of the alternative refrigerating machine oil, and the enclosed amount of each are shown together. That is, the example of FIG. 2 shows a label to be newly attached to a product, which is described as “Applying a refrigerant compatible with CFC regulation” and is a fluorocarbon-based non-azeotropic mixed refrigerant containing no chlorine as a refrigerant. Freon R32 /
Fluorocarbon R134a and its amount of inclusion are clearly shown. Also,
The name of the corresponding refrigerator oil and its amount enclosed are also specified.
【００３３】本実施例によると、表示ラベルをレトロフ
ィット作業の最後に貼り付けるので、冷媒を入れ替えて
いないのに表示ラベルを貼ってしまうような間違いを起
こすことがなくなり、レトロフィット作業の信頼性が向
上する。According to the present embodiment, since the display label is attached at the end of the retrofit work, the error of attaching the display label without changing the refrigerant is prevented, and the reliability of the retrofit work is eliminated. Is improved.
【００３４】尚、図３に分離型空気調和機の従来表示ラ
ベルの貼り付け位置を示すが、分離型空気調和機の室外
機の脇板に従来表示ラベルは貼付てある。従来より貼り
付けてあった表示ラベルの冷媒名及び冷凍機油の封入量
を図４の斜線部の如く消去するとより作業の信頼性が向
上する。Incidentally, FIG. 3 shows the pasting position of the conventional display label of the separation type air conditioner. The conventional display label is pasted on the side plate of the outdoor unit of the separation type air conditioner. If the refrigerant name and the amount of the refrigerating machine oil enclosed in the display label pasted conventionally are erased as shown by the shaded area in FIG. 4, the work reliability is further improved.
【００３５】また、図５のような修正ラベル１を作成
し、図６のように既に貼られている表示ラベルの所定箇
所上に貼り付けても良い。尚、修正ラベルの材質は銀マ
ットベースのポリエステルフィルムが下地文字の透過が
無いため適している。或いは図６のように冷媒名、冷凍
機油名を代替品に変更した表示ラベルとし、既に貼られ
ている従来の表示ラベル４を剥がして、同じ場所に貼り
替えても良いし、図８のように既に貼られている従来の
表示ラベルを書き替えても良い。図９は、表示ラベルの
貼り付け位置の実施例を示す。図は分離型空気調和機の
室外機を示す。表示ラベルは、電気配線を行なったり動
作チェックを行なうサービス用蓋２の近傍に貼り付け
る。Further, the correction label 1 as shown in FIG. 5 may be prepared and attached on a predetermined portion of the already attached display label as shown in FIG. Incidentally, the material for the correction label is suitable because a polyester film based on silver matte does not allow the underlying characters to pass through. Alternatively, as shown in FIG. 6, the refrigerant name and the refrigerating machine oil name may be changed to an alternative product, and the conventional display label 4 already attached may be peeled off and replaced in the same place, or as shown in FIG. You may rewrite the conventional display label already stuck on. FIG. 9 shows an example of the position where the display label is attached. The figure shows the outdoor unit of the separation type air conditioner. The display label is attached in the vicinity of the service lid 2 for performing electrical wiring and checking the operation.
【００３６】[0036]
【発明の効果】以上より明らかなように、本発明は、作
動冷媒を入れ替えるレトロフィット作業において、代替
冷媒である旨の表示をするようにしたので、適用冷媒の
識別が容易となる。従って、点検、修理等の作業性の向
上が図れる。As is apparent from the above, in the present invention, in the retrofit work of replacing the working refrigerant, the indication that the refrigerant is the alternative refrigerant is displayed, so that the applicable refrigerant can be easily identified. Therefore, workability such as inspection and repair can be improved.
【図１】本発明の一実施例に係る空気調和機のレトロフ
ィット作業手順を説明するフロー図である。FIG. 1 is a flowchart illustrating a retrofit work procedure of an air conditioner according to an embodiment of the present invention.
【図２】表示ラベルの例を示す平面図である。FIG. 2 is a plan view showing an example of a display label.
【図３】従来の表示ラベルの貼り付け位置の例を示す図
である。FIG. 3 is a diagram showing an example of a pasting position of a conventional display label.
【図４】表示ラベルの例を示す平面図である。FIG. 4 is a plan view showing an example of a display label.
【図５】表示ラベルの例を示す平面図である。FIG. 5 is a plan view showing an example of a display label.
【図６】表示ラベルの例を示す平面図である。FIG. 6 is a plan view showing an example of a display label.
【図７】表示ラベルの例を示す平面図である。FIG. 7 is a plan view showing an example of a display label.
【図８】表示ラベルの例を示す平面図である。FIG. 8 is a plan view showing an example of a display label.
【図９】表示ラベルの貼り付け位置を示す図である。FIG. 9 is a diagram showing a position where a display label is attached.
１…表示ラベル、 ２…修正ラベル、 ３…サービス蓋、 ４…従来の表示ラベル、 ５…室外ユニットの脇板。 1 ... Label, 2 ... Correction label, 3 ... Service lid, 4 ... Conventional label, 5 ... Side plate of outdoor unit.
フロントページの続き (72)発明者 松嶋 弘章 茨城県土浦市神立町502番地株式会社日立 製作所機械研究所内 (72)発明者 工藤 光夫 茨城県土浦市神立町502番地株式会社日立 製作所機械研究所内Front Page Continuation (72) Inventor Hiroaki Matsushima 502 Jinrachicho, Hitachi, Ltd., Tsuchiura, Ibaraki Prefecture Machinery Research Laboratory, Ltd. (72) Inventor, Mitsuo Kudo, 502, Jinritsucho, Tsuchiura, Ibaraki Hitachi, Ltd. Mechanical Laboratory, Ltd.
Claims (8)
素を接続配管によって接続した冷凍サイクルを有し、作
動冷媒として弗化炭化水素系冷媒を用いる空気調和機に
おいて、冷凍サイクル中に塩素を含む弗化炭化水素系冷
媒を抜き取り回収し、代わりに塩素を含まない弗化炭化
水素系冷媒を封入し、更に少なくとも該塩素を含まない
弗化炭化水素系冷媒適用である旨の表示ラベルを空気調
和機に貼ることを特徴とする空気調和機のレトロフィッ
ト作業方法。1. An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by a connecting pipe, and a fluorocarbon refrigerant is used as a working refrigerant in the refrigeration cycle. A fluorocarbon-based refrigerant containing chlorine is extracted and collected, and instead, a fluorohydrocarbon-based refrigerant that does not contain chlorine is enclosed, and a statement that the fluorocarbon-based refrigerant does not contain at least the chlorine is applied. A method for retrofitting an air conditioner, characterized in that a label is attached to the air conditioner.
素を接続配管によって接続した冷凍サイクルを有し、作
動冷媒として弗化炭化水素系冷媒を用いる空気調和機に
おいて、冷凍サイクル中に塩素を含む弗化炭化水素系冷
媒を抜き取り回収し、代わりに塩素を含まない弗化炭化
水素系冷媒を封入し、更に少なくとも該塩素を含まない
弗化炭化水素系冷媒適用である旨の修正ラベルを空気調
和機に既に貼られている表示ラベルの上から貼ることを
特徴とする空気調和機のレトロフィット作業方法。2. An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by a connecting pipe, and a fluorocarbon refrigerant is used as a working refrigerant in the refrigeration cycle. Amended to apply fluorocarbon-based refrigerant that does not contain chlorine, by extracting fluorocarbon-based refrigerant that contains chlorine and collecting it, and instead containing fluorocarbon-based refrigerant that does not contain chlorine. A retrofit work method for an air conditioner, characterized in that the label is applied on top of the display label already applied to the air conditioner.
素を接続配管によって接続した冷凍サイクルを有し、作
動冷媒として弗化炭化水素系冷媒を用いる空気調和機に
おいて、冷凍サイクル中に塩素を含む弗化炭化水素系冷
媒を抜き取り回収し、代わりに塩素を含まない弗化炭化
水素系冷媒を封入し、更に少なくとも該塩素を含まない
弗化炭化水素系冷媒適用である旨の表示ラベルを既に空
気調和機に貼られている表示ラベルを剥がして貼り替え
ることを特徴とする空気調和機のレトロフィット作業方
法。3. An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by a connecting pipe, and a fluorocarbon refrigerant is used as a working refrigerant during the refrigeration cycle. A fluorocarbon-based refrigerant containing chlorine is extracted and collected, and instead, a fluorohydrocarbon-based refrigerant that does not contain chlorine is enclosed, and a statement that the fluorocarbon-based refrigerant does not contain at least the chlorine is applied. A retrofit work method for an air conditioner, characterized in that the display label that has already been applied to the air conditioner is removed and replaced.
素を接続配管によって接続した冷凍サイクルを有し、作
動冷媒として弗化炭化水素系冷媒を用いる空気調和機に
おいて、冷凍サイクル中に塩素を含む弗化炭化水素系冷
媒を抜き取り回収し、代わりに塩素を含まない弗化炭化
水素系冷媒を封入し、更に既に貼られている表示ラベル
の該当箇所を少なくとも該塩素を含まない弗化炭化水素
系冷媒適用である旨に訂正することを特徴とする空気調
和機のレトロフィット作業方法。4. An air conditioner having a refrigeration cycle in which elements including a compressor, a condenser, a decompressor, and an evaporator are connected by a connecting pipe, and a fluorocarbon refrigerant is used as a working refrigerant in the refrigeration cycle. Fluorohydrocarbon-based refrigerant containing chlorine is extracted and collected, and instead fluorocarbon-based refrigerant that does not contain chlorine is sealed.Furthermore, at least the relevant part of the label already affixed is labeled with fluorine that does not contain chlorine. A retrofit work method for an air conditioner, which is characterized in that a chemical hydrocarbon-based refrigerant is applied.
ラベルは空気調和機のサービス用蓋近傍に位置させるこ
とを特徴とする空気調和機のレトロフィット作業方法。5. The retrofit working method for an air conditioner according to claim 1, 2, 3 or 4, wherein the label is located near a service lid of the air conditioner.
前記冷媒のレトロフィット作業に際し、更に冷凍機油も
抜き取り回収して新たな冷凍機油を封入することを特徴
とする空気調和機のレトロフィット作業方法。6. The method according to claim 1, 2, 3, 4 or 5.
A method for retrofitting an air conditioner, characterized in that when refrigerating the refrigerant, the refrigerating machine oil is also withdrawn and new refrigerating machine oil is filled.
冷凍機油も表示することを特徴とする空気調和機のレト
ロフィット作業方法。7. The retrofit work method for an air conditioner according to claim 6, wherein new refrigerating machine oil is also displayed on the label.
おいて、前記新たに入れる冷媒は非共沸混合冷媒である
ことを特徴とする空気調和機のレトロフィット作業方
法。8. The retrofit work method for an air conditioner according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the newly added refrigerant is a non-azeotropic mixed refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6642193A JPH06273007A (en) | 1993-03-25 | 1993-03-25 | Retrofit working method of air conditioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6642193A JPH06273007A (en) | 1993-03-25 | 1993-03-25 | Retrofit working method of air conditioning apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06273007A true JPH06273007A (en) | 1994-09-30 |
Family
ID=13315319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6642193A Pending JPH06273007A (en) | 1993-03-25 | 1993-03-25 | Retrofit working method of air conditioning apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06273007A (en) |
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1993
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| JP2011094871A (en) * | 2009-10-29 | 2011-05-12 | Mitsubishi Electric Corp | Refrigerating air conditioning device and installation method of the refrigerating air conditioning device |
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