How to deal with the low evaporation pressure of water - cooled chiller？

Water-cooled chiller is widely used in textile industry, electronics industry, chemical industry, plastic industry, printing ink industry, etc., mainly provides 3-30℃ cold water to cool the equipment, so as to improve the rate of excellent products, improve work efficiency. However, some customers asked DANNICE that the evaporator pressure of the water chiller they bought from another company was too low, which led to the abnormal operation of the water chiller and seriously affected the production. Therefore, I particularly hope that DANNICE can help analyze what causes it and how to eliminate it.

Since each manufacturer makes a different chiller, DANNICE recommends that you consult with the manufacturer of the water-cooled chiller you are supplied with. It would be better if they can provide after-sales service. In addition to the analysis and elimination of the reasons for the low evaporation pressure of water-cooled chiller, DANNICE suggested that the following 7 points should be checked step by step, and the abnormal ones could be repaired in time.

1. The evaporation pressure of water-cooled chiller may be too low because of insufficient refrigerant. Therefore, as long as the corresponding refrigerant can be added. But if the refrigerant is insufficient, be sure to check for internal leakage. If there is internal leakage, it is necessary to repair, otherwise, even if the addition of refrigerant will still be directly missed, the problem can not be solved.

2. If the expansion valve of the water cooled chiller is opened too small or the valve hole is blocked, the evaporation pressure will be too low. You can restore normal use by opening the expansion valve and removing the plug of the valve hole.

3. It may be caused by the blockage of the liquid supply pipeline. After inspection, directly eliminate the dirty things in the liquid supply pipeline to solve the blockage problem.

4. Is the fault caused by oil accumulation in the evaporator? If so, simply drain off the oil.

5. The evaporation pressure caused by the blockage of the filter dryer is too low. Just clean and replace the filter dryer.

6, if the solenoid valve of the water cooled chiller does not work, it will also lead to this phenomenon. The solenoid valve can be repaired or replaced to resume normal use.

7. It may also be caused by the "ice plug" of the expansion valve. The "ice plug" of the expansion valve needs to be removed.

Guangdong DANNICE Refrigeration Technology Co., Ltd.

DNC Chiller is a professional manufacturer of industrial chiller, air-cooled chiller, water-cooled chiller, glycol chiller from China.

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