JPH0961019A - Method for sealing refrigerant for air conditioner - Google Patents
Method for sealing refrigerant for air conditionerInfo
- Publication number
- JPH0961019A JPH0961019A JP21705295A JP21705295A JPH0961019A JP H0961019 A JPH0961019 A JP H0961019A JP 21705295 A JP21705295 A JP 21705295A JP 21705295 A JP21705295 A JP 21705295A JP H0961019 A JPH0961019 A JP H0961019A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- vacuumization
- displayed
- air conditioner
- sealed state
- 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】本発明は空気調和機の冷媒封入方
法に係り、特に、室内機と室外機に分離している空気調
和機の冷媒封入方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging a refrigerant in an air conditioner, and more particularly to a method for charging a refrigerant in an air conditioner separated into an indoor unit and an outdoor unit.
【０００２】[0002]
【従来の技術】従来、空気調和機に冷媒封入する場合に
は、室外機に封入されている冷媒をわずかに放出して、
接続配管と室内機配管内の空気を追い出してから、冷媒
封入することが多かった。この場合には、真空ポンプは
不要であるが、冷媒配管が密封状態にあるかどうかは、
確認することができない。この作業をエアパージと呼
ぶ。2. Description of the Related Art Conventionally, when a refrigerant is enclosed in an air conditioner, the refrigerant enclosed in the outdoor unit is slightly discharged,
Air was often expelled from the connecting pipe and the indoor unit pipe before the refrigerant was filled. In this case, the vacuum pump is not necessary, but whether the refrigerant pipe is sealed is
I can't confirm. This work is called air purge.
【０００３】[0003]
【発明が解決しようとする課題】最近は、フロン系冷媒
によるオゾン層破壊や地球温暖化などの環境問題が議論
されるようになり、冷媒を大気中に放出しないことが要
求されている。エアパージも、わずかとはいえ、冷媒を
大気中に放出するので、廃止される予定である。エアパ
ージに替わって、真空引きが必要となるが、実際に真空
引きを実施したかどうかを確かめる手段がない。真空引
きをしないで運転すると、配管内部に空気が残り、冷媒
熱伝達率が低下し、その結果、冷房能力の低下や電気入
力の増大を招くが、すぐに判るわけではない。また、ひ
そかにエアパージを行っているかもしれない。これも現
場にいなければ、見つけることはできない。そこで、確
かに真空引きを実施したということが判る何らかの手段
が必要である。Recently, environmental problems such as ozone layer depletion and global warming caused by CFC-based refrigerants have been discussed, and it is required that the refrigerant is not released into the atmosphere. The air purge will release the refrigerant to the atmosphere, albeit slightly, and will be abolished. Vacuuming is required instead of air purging, but there is no means to confirm whether vacuuming was actually performed. When operated without vacuuming, air remains inside the pipe and the heat transfer coefficient of the refrigerant decreases, resulting in a decrease in cooling capacity and an increase in electric input. However, it is not immediately understood. It may also be secretly purging air. You can't find this unless you're at the scene. Therefore, it is necessary to have some means by which it can be understood that the vacuuming has been carried out.
【０００４】本発明の目的は、冷媒封入の際、真空引き
を実施したことがわかり、さらに冷媒配管内に漏れがな
く、密封状態が保たれていることを明らかにすることが
できる冷媒封入方法を提供することにある。It is an object of the present invention to find out that a vacuum is drawn when the refrigerant is charged, and further it can be clarified that there is no leakage in the refrigerant pipe and that the sealed state is maintained. To provide.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に、本発明は室内機および室外機を備えた空気調和機の
作動冷媒封入方法において、接続配管をつなぎ、真空引
きをした後、密封確認表示をした後、冷媒を封入し、運
転開始するようにした。In order to solve the above-mentioned problems, the present invention relates to a method for enclosing a working refrigerant in an air conditioner having an indoor unit and an outdoor unit, connecting connecting pipes, evacuating, and then sealing. After the confirmation display, the refrigerant was sealed and the operation was started.
【０００６】[0006]
【作用】真空引きを実施した後、一定時間放置してお
き、その時間前後の圧力(真空度)を記録，表示すること
により、真空引きを実施したことを証明することがで
き、さらに、この冷媒配管内の密封を確認することがで
きる。[Function] After the evacuation is performed, it is allowed to stand for a certain period of time, and by recording and displaying the pressure (vacuum degree) before and after that time, it is possible to prove that the evacuation is performed. It is possible to confirm the seal inside the refrigerant pipe.
【０００７】[0007]
【実施例】始めに、図２，図５により、従来の冷媒封入
方法について説明する。従来は、配管接続した後、エア
パージを行っていた。サービスバルブ４ａをわずかに開
き、接続配管３ａ，３ｂおよび室内機２の配管内に、室
外機の冷媒を満たし高圧にする。その後、サービスバル
ブ４ｂのバルブコアを押して大気に開放し、配管内の空
気と冷媒を一緒に大気中に放出する。こうして、配管内
の空気をほとんど除去することができる。その後、両方
のサービスバルブを全開にして、冷媒封入し、運転を開
始していた。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a conventional refrigerant enclosing method will be described with reference to FIGS. Conventionally, air purging was performed after connecting the pipes. The service valve 4a is slightly opened, and the connection pipes 3a and 3b and the pipes of the indoor unit 2 are filled with the refrigerant of the outdoor unit to make the pressure high. After that, the valve core of the service valve 4b is pushed to open to the atmosphere, and the air in the pipe and the refrigerant are released into the atmosphere together. In this way, most of the air in the pipe can be removed. After that, both service valves were fully opened, the refrigerant was filled, and the operation was started.
【０００８】これに対し、本発明は図１に示すように、
真空引きと密封確認という作業が、エアパージに置き換
えられている。本発明の一実施例を図３によって説明す
る。先ず、接続配管３ａ，３ｂを室内機２と室外機１の
間に接続する。次に、サービスバルブ４ｂにチャージホ
ースを用いて、真空ポンプ５につなぐ。１０〜１５分間
真空引きした後、さらに１０〜１５分間放置する。真空
引きした直後の圧力と、放置した後の圧力を密封確認シ
ールに記載し、それをサービスバルブの近くに貼って表
示する。その後、サービスバルブを全開にして、冷媒封
入し、運転を開始する。密封確認シールの例を図６に示
す。On the other hand, according to the present invention, as shown in FIG.
The work of evacuating and confirming the seal is replaced by air purging. An embodiment of the present invention will be described with reference to FIG. First, the connection pipes 3a and 3b are connected between the indoor unit 2 and the outdoor unit 1. Next, the service valve 4b is connected to the vacuum pump 5 using a charge hose. After evacuating for 10 to 15 minutes, it is left to stand for 10 to 15 minutes. The pressure immediately after evacuation and the pressure after leaving it are written on the seal confirmation sticker, which is displayed near the service valve. After that, the service valve is fully opened, the refrigerant is filled, and the operation is started. An example of the seal confirmation seal is shown in FIG.
【０００９】図４には別の実施例を示す。真空ポンプが
ない場合、あるいは電源が近くにない場合には、内部を
真空に引いたボンベ７をサービスバルブ４ｂにつない
で、真空ポンプの代わりとすることができる。FIG. 4 shows another embodiment. When there is no vacuum pump, or when there is no power supply nearby, a cylinder 7 having a vacuum inside can be connected to the service valve 4b to replace the vacuum pump.
【００１０】[0010]
【発明の効果】本発明によれば、冷媒封入の際、真空引
きを実施したことがわかり、さらに冷媒配管内に漏れが
なく、密封状態が保たれていることを明らかにすること
ができる。According to the present invention, it can be seen that a vacuum is drawn when the refrigerant is charged, and it can be clarified that there is no leakage in the refrigerant pipe and the sealed state is maintained.
【００１１】また、大気中への冷媒放出がなくなるの
で、地球環境が守られる。さらに、空気調和機の動作係
数（ＣＯＰ）が向上し、消費電力が少なくなるという効
果もある。Further, since the refrigerant is not released into the atmosphere, the global environment is protected. Further, there is an effect that the coefficient of operation (COP) of the air conditioner is improved and the power consumption is reduced.
【図１】本発明の一実施例の作業のフローチャート。FIG. 1 is a flow chart of the work of one embodiment of the present invention.
【図２】従来の作業のフローチャート。FIG. 2 is a flowchart of conventional work.
【図３】本発明の一実施例の機器の説明図。FIG. 3 is an explanatory diagram of a device according to an embodiment of the present invention.
【図４】本発明の他の実施例の機器の説明図。FIG. 4 is an explanatory diagram of a device according to another embodiment of the present invention.
【図５】従来の機器の説明図。FIG. 5 is an explanatory diagram of a conventional device.
【図６】本発明の一実施例の密封確認表示の例を示す正
面図。FIG. 6 is a front view showing an example of a seal confirmation display according to an embodiment of the present invention.
１…室外機、２…室内機、３ａ，３ｂ…接続配管、４
ａ，４ｂ…サービスバルブ、５…真空ポンプ、６…密封
確認シール、７…真空ボンベ。1 ... Outdoor unit, 2 ... Indoor unit, 3a, 3b ... Connection piping, 4
a, 4b ... Service valve, 5 ... Vacuum pump, 6 ... Seal confirmation seal, 7 ... Vacuum cylinder.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小暮 博志 栃木県下都賀郡大平町大字富田800番地 株式会社日立製作所冷熱事業部内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroshi Kogure 800 Tomita, Ohira, Shimotsuga-gun, Tochigi Pref.
Claims (1)
冷媒封入方法において、接続配管をつなぎ、真空引きを
した後、密封確認表示をした後、前記冷媒を封入し、運
転開始することを特徴とする空気調和機の冷媒封入方
法。1. A method for enclosing a refrigerant in an air conditioner comprising an indoor unit and an outdoor unit, which comprises connecting a connecting pipe, evacuating, and after sealing confirmation is displayed, enclosing the refrigerant and starting operation. A method for enclosing a refrigerant in an air conditioner, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21705295A JPH0961019A (en) | 1995-08-25 | 1995-08-25 | Method for sealing refrigerant for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21705295A JPH0961019A (en) | 1995-08-25 | 1995-08-25 | Method for sealing refrigerant for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0961019A true JPH0961019A (en) | 1997-03-07 |
Family
ID=16698081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21705295A Pending JPH0961019A (en) | 1995-08-25 | 1995-08-25 | Method for sealing refrigerant for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0961019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148838A (en) * | 2001-11-09 | 2003-05-21 | Mitsubishi Electric Corp | Air conditioner, refrigerating cycle device, and refrigerant charging method |
-
1995
- 1995-08-25 JP JP21705295A patent/JPH0961019A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003148838A (en) * | 2001-11-09 | 2003-05-21 | Mitsubishi Electric Corp | Air conditioner, refrigerating cycle device, and refrigerant charging method |
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