CN101782303A - Method for perfusing refrigerant into air conditioner - Google Patents
Method for perfusing refrigerant into air conditioner Download PDFInfo
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- CN101782303A CN101782303A CN200910005249A CN200910005249A CN101782303A CN 101782303 A CN101782303 A CN 101782303A CN 200910005249 A CN200910005249 A CN 200910005249A CN 200910005249 A CN200910005249 A CN 200910005249A CN 101782303 A CN101782303 A CN 101782303A
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Abstract
The invention provides a method for perfusing a refrigerant into an air conditioner. A standard amount of refrigerant is perfused into an outdoor machine of the air conditioner in sequence in more than two perfusion steps, and the outdoor machine is tested after a predetermined amount of refrigerant is perfused into the outdoor machine. The perfusion comprises a pre-perfusion step and a subsequent perfusion step. After the refrigerant perfused in the pre-perfusion step is balanced in the outdoor machine, the refrigerant perfused in the outdoor machine does not enter a compression chamber of a compressor; and further, after the pre-perfusion, the refrigerant in the outdoor machine exists in the form of gas or comprises only a part of liquid, wherein the amount of the liquid refrigerant is less than that of the gas refrigerant.
Description
Technical field
The present invention relates to the air-conditioner field, be specifically related to the method for filling of air-conditioner coolant.
Background technology
In producing the process of air-conditioner, especially to the off-premises station (particularly digital machine and frequency conversion unit) of air-conditioner in, pour into refrigerant after, need test (utilizing the indoor set of corresponding refrigerating capacity to test) to the service behaviour of the off-premises station that poured into refrigerant.(required coolant quantity is many in existing commercial Air Conditioner, greater than general domestic air conditioner) in the production process, the cooling medium charging of off-premises station all is one step completed, promptly, to be filled into once in the corresponding off-premises station at the standard cooling medium charging amount of a certain type, subsequently the performance of the off-premises station that poured into refrigerant is tested (steps such as can, test as shown in fig. 1).Yet, the disposable off-premises station that all is filled into of the refrigerant of required standard volume, because the coolant quantity of perfusion is many, after being filled in the compressor of off-premises station mostly the form with liquid state exist, thereby when starting the compressor of off-premises station testing, will produce so-called " liquid hammer " phenomenon in the compressor, that is, compressor be impacted.This method that performance test was finished, carried out subsequently in the disposable perfusion of refrigerant can impact to compressor in test process, thus the life-span of reducing compressor.
Summary of the invention
The method for filling that the purpose of this invention is to provide a kind of improved air-conditioner coolant adopts this improved method for perfusing refrigerant into can overcome above-mentioned problems of the prior art.
At above-mentioned purpose, according to the invention provides a kind of method for perfusing refrigerant into air conditioner, wherein, the refrigerant of standard volume successively is filled in the air-conditioner outdoor unit in plural perfusion step, and after in off-premises station, having poured into the refrigerant of scheduled volume off-premises station is tested.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, this method for perfusing refrigerant into comprises:
A) off-premises station is vacuumized;
B) at the pre-refrigerant that in off-premises station, pours into scheduled volume in the step that pours into;
C) off-premises station that will pour into the refrigerant of scheduled volume is connected to measurement circuit;
D) performance of utilizing the air conditioner room unit of corresponding refrigerating capacity to test the off-premises station of the refrigerant that has poured into scheduled volume;
E) in follow-up perfusion step with the cooling medium charging of surplus in off-premises station, wherein, the summation of the refrigerant of surplus and the refrigerant of scheduled volume equals the refrigerant of standard volume.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, after having carried out pre-perfusion step, there is or only comprises a part of liquid refrigerants in the refrigerant in the off-premises station with the form of gaseous state, and wherein, the amount of liquid refrigerants is less than the amount of gaseous coolant.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, after pouring into the refrigerant that pours in the step in advance reach balance in off-premises station, the refrigerant that exists in the off-premises station does not enter in the compressor of off-premises station.
Preferably,, wherein, on the compressor of off-premises station, level monitoring device is installed, whether is entered compression chamber to monitor the refrigerant that pours in the pre-perfusion step according to method for perfusing refrigerant into air conditioner of the present invention.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, the body level monitoring device is a liquid-sighting glass.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, the refrigerating capacity of the respective chambers machine of test usefulness is less than the refrigerating capacity of air-conditioner outdoor unit.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, in step (d), for the different air-conditioner outdoor unit of refrigerant standard volume, adjust the amount of the refrigerant that pours in the pre-perfusion step, thereby adopt the identical indoor set of refrigerating capacity that the off-premises station with different refrigerant standard volumes is tested.
Preferably, according to method for perfusing refrigerant into air conditioner of the present invention, wherein, the cooling medium charging of off-premises station carries out on different stations, pre-refrigerant perfusion step is carried out on first station (A), follow-up cooling medium charging step is carried out on second station (B), and test station is arranged between first station and second station.
The present invention has following technique effect:
Method for perfusing refrigerant into air conditioner according to the present invention is divided into twice perfusion with the refrigerant of standard groundwater increment, after perfusion is finished for the first time, there be (perhaps only having a spot of liquid refrigerants to exist) in refrigerant in the off-premises station with gaseous form, avoided liquid refrigerants to impact in the perfusion and entered compressor, test compressor and can not produce " liquid hammer " phenomenon this moment; In addition, owing to can regulate to the coolant quantity of perfusion for the first time, therefore can adopt the identical indoor set of refrigerating capacity that the air-conditioner outdoor unit (that is, required standard cooling medium charging amount difference) of different refrigerating capacitys is tested, and can reduce the quantity of the required indoor set of test.
Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is for to the claimed further instruction that the invention provides.
Description of drawings
Accompanying drawing constitutes the part of this specification, is used to help further understand the present invention.These accompanying drawings illustrate some embodiments of the present invention, and are used for illustrating principle of the present invention with specification.Identical in the accompanying drawings parts are represented with identical label.In the accompanying drawing:
Fig. 1 is the schematic diagram according to the cooling medium charging process of the air-conditioner outdoor unit of prior art;
Fig. 2 is the schematic diagram according to the cooling medium charging process of air-conditioner outdoor unit of the present invention;
Fig. 3 a, 3b are in the testing procedure according to the air-conditioner outdoor unit refrigerant of prior art, the test matching relationship schematic diagram of indoor set and off-premises station; And
Fig. 4 a, 4b be corresponding with Fig. 3 a, 3b, in the testing procedure of air-conditioner outdoor unit refrigerant according to the present invention, the test matching relationship schematic diagram of indoor set and off-premises station.
The specific embodiment
Below with reference to accompanying drawings and in conjunction with specific embodiments embodiments of the present invention are described.
At first with reference to Fig. 2, wherein show concrete implementation step according to method for perfusing refrigerant into air conditioner of the present invention, in method shown in Figure 1, the refrigerant of standard volume is filled into respectively in the off-premises station of air-conditioner in two perfusion steps, this method for perfusing refrigerant into comprises:
A) off-premises station is vacuumized to carry out cooling medium charging subsequently;
B) in the first cooling medium charging step (pouring into step in advance), with the cooling medium charging of scheduled volume (this predetermined method for determination of amount will subsequently describe) in off-premises station;
C) off-premises station that will pour into the scheduled volume refrigerant is connected to measurement circuit to carry out performance test;
D) utilize the air conditioner room unit of corresponding refrigerating capacity to test the performance of the off-premises station that has poured into the scheduled volume refrigerant (method of determining the indoor set of the corresponding refrigerating capacity that test is used will described subsequently);
E) in the second cooling medium charging step (follow-up perfusion), in off-premises station, wherein, the summation of surplus refrigerant and scheduled volume refrigerant equals the required standard volume refrigerant of off-premises station with the cooling medium charging of surplus.
One skilled in the art should appreciate that, though the refrigerant with standard volume successively is filled in the air-conditioner outdoor unit at twice in the above-described embodiment, but according to the present invention, pre-perfusion step can comprise more than one perfusion step, be arranged on before the testing procedure as long as will pour into step in advance, and guarantee that the refrigerant that pours in the off-premises station reaches scheduled volume and gets final product.Similarly, follow-up perfusion step also can comprise more than one perfusion step.Perfusion step and follow-up perfusion step specifically chooses and divides and can determine according to needs of production in advance.
Further, according to the present invention, the amount of the refrigerant that pours in the above-mentioned first cooling medium charging step (promptly, scheduled volume) to come by experiment to determine, just, for the off-premises station of a certain model, choosing a model machine earlier experimentizes with the coolant quantity that needs in definite pre-perfusion step to pour into, behind the coolant quantity of having determined required perfusion (scheduled volume), just the coolant quantity that should determine can be used for the off-premises station of this model, determine that specifically method is as follows.On the compressor of off-premises station, all install liquid-sighting glass (compressor block level monitoring device), in first time cooling medium charging process, a certain amount of refrigerant of perfusion in off-premises station, after perfusion is finished for the first time, respectively at 1 hour, 2 hours, 4 hours, 7 hours ... a plurality of time points place such as 48 hours observe in the compressor liquid level (promptly, observe refrigerant and whether reach stable state), whether observation is undertaken by the liquid-sighting glass that is arranged on the compressor, entered in the compression chamber of compressor to observe the refrigerant that pours in the off-premises station.
If in observation time, the refrigerant of perfusion has been in stable state and has not entered compression chamber in the off-premises station, and then the amount of the refrigerant of perfusion this moment is the refrigerant of the required scheduled volume of first perfusion; If in observation time, the refrigerant of perfusion does not reach stable state as yet in the off-premises station, then needs to prolong observation time till refrigerant reaches stable state, if refrigerant did not enter compression chamber then just can determine the coolant quantity of required perfusion this moment.Relatively, if when observation finds that refrigerant has entered compression chamber, then need to reduce the coolant quantity of first perfusion, to satisfy above-mentioned requirements.
In addition, it is little that the coolant quantity that first perfusion is poured in the step also can not ether, if the coolant quantity of perfusion (for example, lacks a lot than required standard cooling medium charging amount) very little, then can cause follow-up test process normally to carry out.Therefore the coolant quantity (scheduled volume) for first perfusion also needs to determine lower limit, this lower limit is exactly the value that guarantees that follow-up testing procedure can normally carry out, the concrete numerical value of lower limit can be determined by test experiments, and at different types, lower limit may be different.
After cooling medium charging is finished for the first time, just comprised a certain amount of refrigerant in the off-premises station, these refrigerants exist with the form of gaseous state substantially, perhaps only comprise sub-fraction liquid refrigerants (amount of this part liquid refrigerants is less than the amount of remaining gaseous coolant in the off-premises station), and these refrigerants can make the interior malleation that forms of the outdoor machine system of whole sealing, thereby can in the follow-up test step, reduce impact, and liquid refrigerants enters in the compression chamber of compressor when preventing secondary pouring to compressor.
According to the method for perfusing refrigerant into air conditioner of the present invention shown in Fig. 2, in step (d), utilize the air conditioner room unit of corresponding refrigerating capacity to test the off-premises station performance of having poured into the scheduled volume refrigerant, above-mentioned " corresponding refrigerating capacity " is to determine according to the refrigerating capacity that the coolant quantity that pours in the first cooling medium charging step can reach.Like this, at having the different off-premises station of different labeled cooling medium charging amount and refrigerating capacity, by adjust in the first cooling medium charging step the cooling medium charging amount (promptly, above-mentioned scheduled volume), just can adopt the identical indoor set of refrigerating capacity (total amount) that the off-premises station with different refrigerant standard volumes is tested.Just, make different off-premises stations have identical refrigerating capacity behind the cooling medium charging having finished for the first time, then just might adopt the identical indoor set of total amount that freezes that different off-premises stations has been tested.And if refrigerant once pours into and finishes, then the different off-premises station that differs bigger for refrigerating capacity just can't be tested with the identical indoor set of refrigeration total amount.
In fact, at a certain model off-premises station, the indoor set of the concrete corresponding refrigerating capacity of selecting is determined by experiment, that is to say, after perfusion is finished for the first time, refrigerating capacity according to the coolant quantity that pours into for the first time can reach may adopt the indoor set of the close model of several refrigerating capacitys that it is tested, but specifically select which model then to need to integrate consideration by the off-premises station with another model.Promptly, if find through experiment, after first perfusion is finished, it is that three kinds of indoor units of 40kw, 45kw, 50kw are tested that A type off-premises station can adopt the refrigeration total amount, and the Type B off-premises station can to adopt the refrigeration total amount be that three kinds of indoor units of 50kw, 55kw, 60kw are tested, after then taking all factors into consideration, can select refrigerating capacity and be the indoor units of 50kw these two kinds of different off-premises stations are tested, thereby reduce the kind of required test indoor set.And once pour under the situation about finishing at refrigerant, the off-premises station of these two kinds of different models possibly can't find the coincide point of test with the refrigeration total amount of indoor set.
Like this, off-premises station for different refrigerating capacitys (refrigerant standard volume difference), by adjusting cooling medium charging amount for the first time, just can use the indoor set of same refrigerating capacity to carry out interoperability test, thereby improved the test all-purpose of indoor set greatly, reduce the quantity of required butt joint indoor set, saved the space of resource and production line, and reduced labor intensity of operating personnel.Particularly, for example, method according to prior art, refrigerating capacity is that the off-premises station of 90kw the time need mate the indoor set of 90kw or indoor set (for example indoor set of 6 15kw) that a plurality of refrigerating capacity summation is 90kw in test, the off-premises station of 60kw uses refrigerating capacity to carry out matching test as the indoor set of 60kw or a plurality of refrigerating capacity summation as the indoor set (for example indoor set of 5 12kw) of 60kw, if the model of off-premises station (refrigerating capacity) difference, it is just different then to test required indoor set; And the method according to this invention, if poured into the refrigerant that can reach the 20kw refrigerating capacity in the compressor of off-premises station for the first time, then can use indoor set or the refrigerating capacity summation of 20kw to carry out interoperability test as the indoor units of 20kw, for different off-premises stations, as long as make that its refrigerating capacity that can reach of perfusion back is identical (for example for the first time, be 20kw), then just can use same refrigerating capacity to test as the indoor units of 20kw as indoor set or the refrigerating capacity summation of 20kw.
With reference to Fig. 3 and Fig. 4 and in conjunction with instantiation above-mentioned technique effect of the present invention is described below.As shown in FIG., in the method for prior art, be the outdoor unit of 90kw when testing to refrigerating capacity, need to use 8 refrigerating capacitys to carry out interoperability test as the indoor set of 12kw; And the method according to this invention behind the refrigerant that has poured into scheduled volume in off-premises station, can use the indoor set of 3 12kw to test.When the type change of off-premises station (, standard cooling medium charging amount difference), according to the method for prior art, refrigerating capacity is that the outdoor unit of 45kw need use 4 refrigerating capacitys to carry out interoperability test as the indoor set of 12kw; And the method according to this invention, in that (refrigerant of this moment perfusion has and the identical refrigerating capacity of off-premises station through the 90kw after pouring into for the first time the off-premises station of 45kw behind the refrigerant that has poured into scheduled volume, but groundwater increment herein is different with the type of 90kw, concrete groundwater increment is determined by experiment), can use the indoor set of 3 same 12kw to test.Can clearly be seen that by foregoing description, utilize method for perfusing refrigerant into of the present invention to come gradation perfusion refrigerant, can utilize the indoor units of identical refrigeration total amount that the off-premises station of different model is tested, also reduced the quantity of required indoor set simultaneously.
Should note, the method according to this invention, coolant quantity during test in the off-premises station is lower than standard cooling medium charging amount, uses in the test and tests than the low indoor set of off-premises station standard coolant quantity, will carry out secondary pouring according to the required standard cooling medium charging of air-conditioner after test is finished.For example: the standard groundwater increment of the off-premises station that refrigerating capacity is 90kw is 45kg, it is 18kg that best groundwater increment is determined in experiment, pour into the refrigerant of 18kg when pouring into so earlier, then use the indoor set (can reach the refrigerating capacity of 36kw its this moment) of 36kw to carry out interoperability test, the refrigerant of the 27kg of perfusion residue again after the test; And the off-premises station standard cooling medium charging amount of a 60kw is 36kg, pour into for the first time the 15kg refrigerant, equally also can use the indoor set (also can reach the refrigerating capacity of 36kw its this moment) of 36kw to test then, pour into remaining 21kg refrigerant again after test is finished.
In the method, twice cooling medium charging of off-premises station carries out on two stations respectively, the first cooling medium charging step is carried out on the first station A, and the second cooling medium charging step is carried out on the second station B, and the first station A and the second station B are separately positioned on test station before with afterwards.
It should be noted that method for perfusing refrigerant into air conditioner according to the present invention is not limited to above-mentioned instantiation, in fact, according to actual needs, the perfusion of refrigerant can be finished in a plurality of steps (that is plural perfusion step) respectively.Each perfusion step is carried out on different stations respectively, and the testing procedure of compressor can be arranged on after for the first time perfusion is finished, and the summation of the coolant quantity that pours in each perfusion step equals the standard coolant quantity of off-premises station.Similar to the above embodiments, when off-premises station was tested, there was or only comprises a part of liquid refrigerants in the refrigerant that comprises in outdoor with the form of gaseous state, and wherein, the amount of this operative liquid refrigerant is less than the amount of the gaseous coolant of remainder in the off-premises station; And, under the different situation of the refrigerant standard volume of off-premises station, make that facility have identical refrigerating capacity (the pre-groundwater increment for different type refrigerants is different) outside the different chamber as long as be filled into refrigerant in the off-premises station before the testing procedure, just can adopt the identical indoor set of refrigerating capacity that the off-premises station with different refrigerant standard volumes is tested.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a method for perfusing refrigerant into air conditioner is characterized in that, the refrigerant of standard volume successively is filled in the air-conditioner outdoor unit in plural perfusion step, and poured into the refrigerant of scheduled volume in described off-premises station after off-premises station is tested.
2. method for perfusing refrigerant into air conditioner according to claim 1 is characterized in that, described method for perfusing refrigerant into comprises:
A) will vacuumize in the described off-premises station;
B) at the pre-refrigerant that in described off-premises station, pours into scheduled volume in the step that pours into;
C) off-premises station that will pour into the refrigerant of described scheduled volume is connected to measurement circuit;
D) performance of utilizing the air conditioner room unit of corresponding refrigerating capacity to test the off-premises station of the refrigerant that has poured into described scheduled volume;
E) in follow-up perfusion step with the cooling medium charging of surplus in described off-premises station, wherein, the summation of the refrigerant of described surplus and the refrigerant of described scheduled volume equals the refrigerant of described standard volume.
3. method for perfusing refrigerant into air conditioner according to claim 2, it is characterized in that after having carried out described pre-perfusion step, there is or only comprises a part of liquid refrigerants in the refrigerant in the described off-premises station with the form of gaseous state, wherein, the amount of described liquid refrigerants is less than the amount of gaseous coolant.
4. method for perfusing refrigerant into air conditioner according to claim 3 is characterized in that, the refrigerant that pours in the described pre-perfusion step reaches balance in described off-premises station after, the liquid refrigerants that exists in the described off-premises station does not enter in the compressor of described off-premises station.
5. method for perfusing refrigerant into air conditioner according to claim 4 is characterized in that, on the compressor of described off-premises station level monitoring device is installed, and whether enters described compression chamber to monitor the refrigerant that pours in the described pre-perfusion step.
6. method for perfusing refrigerant into air conditioner according to claim 5 is characterized in that, described body level monitoring device is a liquid-sighting glass.
7. method for perfusing refrigerant into air conditioner according to claim 2 is characterized in that, the refrigerating capacity of the described respective chambers machine of test usefulness is less than the refrigerating capacity of described air-conditioner outdoor unit.
8. method for perfusing refrigerant into air conditioner according to claim 2, it is characterized in that, in described step (d), for the different air-conditioner outdoor unit of refrigerant standard volume, adjust the amount of the refrigerant that pours in the described pre-perfusion step, thereby adopt the identical indoor set of refrigerating capacity that the off-premises station with different refrigerant standard volumes is tested.
9. method for perfusing refrigerant into air conditioner according to claim 2, it is characterized in that, the cooling medium charging of described off-premises station carries out on different stations, described pre-refrigerant perfusion step is carried out on first station (A), described follow-up cooling medium charging step is carried out on second station (B), and test station is arranged between described first station and described second station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100052490A CN101782303B (en) | 2009-01-20 | 2009-01-20 | Method for perfusing refrigerant into air conditioner |
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| CN2009100052490A CN101782303B (en) | 2009-01-20 | 2009-01-20 | Method for perfusing refrigerant into air conditioner |
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| CN101782303A true CN101782303A (en) | 2010-07-21 |
| CN101782303B CN101782303B (en) | 2012-11-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154690A (en) * | 2014-08-04 | 2014-11-19 | 珠海格力电器股份有限公司 | Emptying device of central air conditioning system, control method of emptying device and central air conditioning system |
| CN108061412A (en) * | 2017-12-06 | 2018-05-22 | 珠海格力电器股份有限公司 | Cooling medium charging equipment and its control method |
| CN109631434A (en) * | 2018-12-13 | 2019-04-16 | 广东美的制冷设备有限公司 | System and method, outdoor machine of air-conditioner and the air-conditioning system of refrigerant are filled into outdoor machine of air-conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09196478A (en) * | 1996-01-23 | 1997-07-31 | Nippon Soken Inc | Refrigerating cycle |
| JP3152187B2 (en) * | 1997-11-21 | 2001-04-03 | ダイキン工業株式会社 | Refrigeration apparatus and refrigerant charging method |
| US7086237B2 (en) * | 2004-05-06 | 2006-08-08 | Yakov Arshansky | Method and apparatus to measure and transfer liquefied refrigerant in a refrigeration system |
| JP4197020B2 (en) * | 2006-08-10 | 2008-12-17 | ダイキン工業株式会社 | Refrigerant charging method in refrigeration apparatus using carbon dioxide as refrigerant |
| CN100595497C (en) * | 2008-04-10 | 2010-03-24 | 上海理工大学 | Determination method for frequency converting air-conditioner liquid reservoir capacity and refrigerant charging amount |
-
2009
- 2009-01-20 CN CN2009100052490A patent/CN101782303B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154690A (en) * | 2014-08-04 | 2014-11-19 | 珠海格力电器股份有限公司 | Emptying device of central air conditioning system, control method of emptying device and central air conditioning system |
| CN104154690B (en) * | 2014-08-04 | 2016-10-05 | 珠海格力电器股份有限公司 | The emptier of central air conditioner system and control method, central air conditioner system |
| CN108061412A (en) * | 2017-12-06 | 2018-05-22 | 珠海格力电器股份有限公司 | Cooling medium charging equipment and its control method |
| CN109631434A (en) * | 2018-12-13 | 2019-04-16 | 广东美的制冷设备有限公司 | System and method, outdoor machine of air-conditioner and the air-conditioning system of refrigerant are filled into outdoor machine of air-conditioner |
| CN109631434B (en) * | 2018-12-13 | 2021-08-20 | 广东美的制冷设备有限公司 | System and method for filling refrigerant into air conditioner outdoor unit, air conditioner outdoor unit and air conditioning system |
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| CN101782303B (en) | 2012-11-07 |
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