Chillers are generally classified into air-cooled chillers and water-cooled chillers, which are widely used in the industry because they provide constant temperature, constant current, and constant pressure. If the chiller is used for too long, or if there is no regular maintenance, it will inevitably lead to some unexpected failures. Next, we will introduce the common failures of water-cooled chillers and their solutions. Common Fault I: High and Low Voltage Is Normal When the compressor malfunctions when there is little or equal difference between the high pressure and the low pressure, we must check whether the valve of the compressor itself is damaged or broken, and immediately stop the operation and notify the supplier to send someone to deal with it. Common fault two: refrigerant shortage indicator light When the water temperature of the water-cooled freezer is above 5°C, when the low pressure gauge pressure is less than 2kg/cm2, then the refrigerant is identified as insufficient. At this time, we must perform the leak detection work. If there is leakage, we should make a leak and replace it. The dry filter is evacuated and the freezer is filled with the appropriate refrigerant. Common fault three: reverse phase When this fault occurs in the water-cooled freezer, phase protection will be provided in time. The reason for the reverse phase is that there are pumps and compressors reversing. At this time, we can change any two phases in the power line. If it is a phase loss, we only need to use a multimeter to measure whether the three-phase power is normal. Check if the power line is broken. Drop it. Common faults four: poor cooling caused by slow cooling or unable to cool If the condenser of the water-cooled freezer has poor heat dissipation, the compressor will have low efficiency, the operating current will increase, and the high-pressure pressure will rise to 20kg/cm2. At this time, the compressor will be stopped by high pressure protection and the cooling tower cycle will be checked. Whether the water is normal, whether the cooling water temperature is too high, and whether the cooling water valve is fully opened, whether the condenser is dirty, etc., until these are normal, press the reset button again to operate normally. The above is the common failure of the water-cooled chiller and its solution. When the chiller fails, avoid blindly hands-on repairs, otherwise it will cause more serious consequences. You should find a professional to troubleshoot and be foolproof. Dongguan Nijias Plastic Machinery Co., Ltd., a central supply system manufacturer, specializes in large-scale plastics industry powder/granule transport engineering, plastics manufacturing industry centralized feeding system engineering, plastic unmanned workshop design and construction turnkey engineering and automation assistance Unique equipment provides a comprehensive, professional solution!
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