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Dryer (Filter)

Updated: Oct 1

The wet-bulb temperature of the air depends on the internal cleaning of the cooling system. Only dry and clean refrigerant and dry and clean oil should circulate inside the system. Some water may be mixed into the fluid both before filling it with the system and from other elements of the system. This water freezes the system at the entrance of the capillary tube to the evaporator and prevents cooling. Dust and small particles inside can also clog. It is almost impossible to prevent water and dust from entering the system. In addition, some acids may be present in the refrigerant. The task of the dryer and strainer (drainer and strainer) placed at the condenser outlet is to absorb water and acids and to filter small solids (dust etc.).


Drayer Structure


Dryer and strainer (drainer and strainer) consist of the following parts.


  • The body made of copper pipe is made to withstand the pressure inside the condenser. There are holes on both ends of the pipes.


  • Thin cheesecloth, which can hold small solids, is attached to the perforated wire pipe. Moisture absorbing agent has a special feature made of a 4 - 5 mm absorption feature, besides absorbing the acid that can be found in the refrigerant.

Drayer Installation


The drier should be mounted on the liquid line in the circuit in the direction of the arrow marked on the drier. The drainers used in domestic refrigerators are installed between the condenser and the capillaries and are one of the disposable types. When installing the new drier in place, we first cut the end of the capillary with the help of capillary tube scissors and place them neatly into the capillary drainer. We should take care that the capillary does not enter the drain too much and does not spoil the structure of the drainer. Likewise, after placing the other end of the drainer from the condenser into the pipe, we proceed to solder processes. We first connect the condenser outlet with the brazing welding, then the capillary tube, and the dryer connection by welding with the brazing welding. The gas in the system must be evacuated during these processes.


Drayer installation is similar to compressor, evaporator, and condenser installation. The issue you will notice here is the pipe coming from the condenser is a copper pipe of normal diameters, while the pipe to the evaporator is a capillary pipe.


Another issue you will pay attention to is to make sure that it does not get moisture after it is removed from the package of the drainer and it is installed in a serial manner by avoiding the dusty environment. This is because, after opening the packaging of the drainer and removing the protective plugs, the silicate crystals inside the drainer begin to be affected by the ambient humidity.





Sinan Dayioglu

Sales and Export Responsible

https://www.linkedin.com/in/sinan-dayioglu-2a3800109/

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