Because of its excellent performance, water-cooled chiller is widely used in all walks of life, such as electronics factories, manufacturing factories and so on. It mainly provides 3-30℃ cryogenic chilled water to cool the equipment, so as to improve the product quality rate and improve work efficiency.
But there are many chiller prone to the phenomenon of low evaporator pressure, resulting in the normal operation of the water cooled chiller, seriously affecting the production, so why?
1. The evaporation pressure of the water-cooled chiller may be too low because of the lack of refrigerant. Therefore, as long as the corresponding refrigerant can be supplemented. But east Star refrigeration to remind a point: if the refrigerant is insufficient, be sure to check whether there is internal leakage. If there is internal leakage, it should be repaired, or even if the refrigerant is added, it will still be directly missed, and 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. It can be restored to normal use by opening the large expansion valve and removing the blockage of the valve hole.
3. It may be caused by blockage of liquid supply pipeline. After the inspection, it is ok to directly remove 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 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, this phenomenon will also occur. The solenoid valve can be repaired or replaced to restore normal use.
7. It may also be caused by the “ice plug” of the expansion valve, so check the cause first and remove the “ice plug” of the expansion valve.
Because the chiller produced by each manufacturer is different, when buying a chiller, we must consult first, so that it can effectively avoid the phenomenon of too low evaporative pressure of water-cooled chiller!
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