Chiller common faults and solutions are introduced

When the compressor is running with little or equal difference in high pressure and low pressure, there is a problem, then we must check whether the valve plate of the compressor itself is damaged or broken, and immediately stop the operation and notify the supplier to send someone to dispose of it. When the water temperature of the water-cooled chiller is above 5 ° C and the pressure of the low-pressure gauge is below 2kg/cm2, then the lack of refrigerant is marked. At this time, we should stop the leak detection work, if there is a leak point, we should stop the leak repair, and then replace the dry filter with a new vacuum, and fill the refrigerator with the appropriate refrigerant.

When the water-cooled chiller presents this problem, it will be maintained in time. The reason for the reverse phase is that the pump and the compressor are reversed. At this time, we can arbitrarily exchange the two phases of the power supply. If it is a lack of phase, we only need to use a multimeter to measure whether the three-phase power supply is normal and check whether the power cord is broken.

If the condenser of the water-cooled chiller has poor heat dissipation, then the efficiency of the compressor is low, the running current will improve, and the high pressure pressure rises to 20kg/cm2, at this time the compressor of the chiller is stopped by high pressure maintenance trip, at this time to check whether the circulating water of the cooling tower is normal, whether the cooling water temperature is too high, and whether the cooling water valve can be opened. Whether the condenser can be dirty and blocked, etc., after these are normal, press the reset button to operate normally.