With each passing day, more regulations are being composed prohibiting the venting of refrigerants during service work. Taking this into account, it makes sense that technicians and contractors remain updated regarding the latest refrigerant recovery machines and how to manage them. Nowadays, the majority of refrigerant recovery equipment utilizes less oil than previous years and is considered lighter, faster, and more user-friendly. Of course, there are still considerations that need to be taken into account for successful refrigerant recovery. This article will provide information on the secrets of refrigerant recovery.
What Is Refrigerant Recovery?
Regardless of whether you are working with supermarket refrigerant machinery or on an average-sized residential air conditioning system, it is important that you know what you are working with beforehand. As the saying goes, preparation makes perfect and the better prepared you are, the better.
Before beginning a project, it is necessary to identify the type of refrigerant and the quantity available in the system being serviced. This is important because you will need to know if any extra filtration is required in the case of potential oil contamination. However, if you are sure that the gas in the system is clean, you can place refrigerant back into the same system without any additional filtration.
What Is The Process Of Refrigerant Recovery?
Refrigerant recovery involves removal of the liquid from a tank, then removing any remaining vapor. The secret to speedy refrigerant recovery involves one of three separate refrigerant removal procedures – the push-pull procedure, the liquid recovery procedure, and the vapor recovery procedure.
1. The Push-Pull Procedure
The push-pull procedure is a technique whereby the bulk of the liquid is removed from the system using pressure created by the refrigerant recovery machine. This option is typically used on systems with a receiver tank that holds over twenty pounds of refrigerant. While push-pull procedures can be highly beneficial, it is not suitable for smaller systems as the smaller systems do not have any bulk refrigerant reservoir to create a siphon.
Before using the push-pull method, it is important that you check for any reversing valve within the system as these valves do not allow solid columns of liquid to form. If this component does not exist, the push-pull method will not be able to develop. If it is not possible to use this method, you should opt for the liquid or vapor recovery procedures. Read more blogs here .
2. The Liquid Recovery Procedure
Liquid recovery of refrigerant is performed in the same manner as traditional vapor recovery; however, the difference is that you are connecting to the upper of the unit. Recovering liquid is most beneficial for situations where large amounts of refrigerant are being recovered, such as in the case of transfer refrigerant. Upon completion, it is important that you avoid trapping the liquid refrigerant between service valves.
3. The Vapor Recovery Procedure
The vapor liquid recovery procedure includes transferring liquid from the refrigeration unit to the recovery system. During this procedure, the refrigerant will pass through the compressor to the condenser where it cools and once it is cools the gas turns to liquid. Vapor recovery is the most commonly used option and has a high effectiveness percentage. To know more visit us .