What is the cause of the chiller not cooling

During the operation of the chiller, the liquid refrigerant in the evaporator continuously absorbs heat from the water and begins to evaporate. After the compressor is compressed and the expansion valve is throttled, it becomes a low-temperature and low-pressure refrigerant and enters the evaporator to continue. cycle.

If it is used for too long, the refrigerant will volatilize, which will affect the refrigeration effect. Another reason is that the refrigerant leaks, which does not affect the refrigeration enough. Therefore, it should be observed whether the refrigerant is sufficient. In the case of leakage of refrigerant, check for leaks. Therefore, it is necessary to check and clean the filter regularly. If the blockage is serious, it is recommended to replace the filter drier with a new one.

There is too much impurities in the tap water, which adhere to the inner wall of the water pipe, resulting in insufficient water supply, thereby affecting the cooling effect. Therefore, for areas with poor water quality, it is recommended to do water treatment projects or regularly clean and replace water pipes to ensure the normal operation of the chiller.

The condenser has not been cleaned for a long time, and the condenser is one of the main components of the chiller. Most of the cooling water contains calcium, magnesium ions and acid carbonate. When cooling water flows over the metal surface, carbonates are formed. In addition, the oxygen dissolved in the cooling water can cause metal corrosion and form rust. Due to the generation of rust and scale, the heat exchange effect of the condenser is reduced. When the scale is serious, the tube will be blocked and the heat exchange effect will be ineffective, thereby affecting the cooling effect. Therefore, it is recommended that the condenser be cleaned every six months.